Cypress.com: Documentation http://www.cypress.com/?app=search&searchType=advanced&id%3D190 AN78446 - Interrupt Handling in EZ-USB® FX2LP™ http://www.cypress.com/?rID=64207 Introduction

EZ-USB® FX2LP™ incorporates 13 interrupt sources in its interrupt architecture, five standard 8051 interrupts and eight additional EZ-USB interrupts.

Standard 8051 Interrupts:

  • IE0(INT0): External Interrupt0
  • IE1(INT1): External Interrupt1
  • RI_0 & TI_0: USART1 Interrupt
  • TF0: Timer0 Overflow
  • TF1: Timer1 Overflow


Additional EZ-USB interrupts:

  • TF2: Timer2 Overflow
  • PF1: Wake up pin(WU2)
  • RI_1 & TI_1: UART 1 Transmit and receive
  • USBINT(INT2): USB specific Interrupt
  • I2CINT(INT3): I2C Bus Interrupt
  • IE4(INT4): External Interrupt 4
  • IE5(INT5): External Interrupt 5
  • IE6(INT6): External Interrupt 6
     

For more, see pdf.

]]> Fri, 08 Feb 2013 05:36:44 -0600 Reset Problems When Re-programming the 24LC64 EEPROM on the FX2 - KBA83436 http://www.cypress.com/?rID=26148 Answer: The reason is that this utility defaults to a 0xB2 load (for example, it writes the first byte as 0xB2 in the EEPROM), which is for the older EZ-USB chips. To avoid this error, follow these steps:

  1. In the µVision2 Editor, click ‘Options for Target’ and then select the ‘Output’ Tab. Ensure that the following path is described in the ‘ Run User Program #1’:

     

    ..\..\..\Bin\hex2bix -i -f 0xC2 -o fw.iic fw.hex

  2. If at power-on-reset, the EZ-USB detects an EEPROM connected to its I2C with the value 0xC2 at address zero, the EZ-USB loads the firmware in EEPROM into an on-chip RAM. It also sets the RENUM bit to ‘1’, causing standard device requests to be handled by the firmware instead of the default USB device.
]]> Thu, 31 Jan 2013 23:31:35 -0600 AN61345 - Implementing an FX2LP™- FPGA Interface http://www.cypress.com/?rID=43046 The interface, described in a sample implementation, adds High-Speed USB connectivity to applications such as data acquisition, industrial control and monitoring, and image processing. The Project provided with this Application Note is implemented and tested with Xilinx Virtex 5 and Spartan 3E FPGAs.

An FX2LP™-FPGA interface is implemented to add High-Speed USB connectivity for FPGA based applications, such as data acquisition, industrial control and monitoring, and image processing. The FX2LP acts in Slave-FIFO mode and the FPGA acts as the master. This Application Note also gives a sample FX2LP firmware for Slave-FIFO implementation and a sample VHDL and Verilog project for FPGA implementation.

 

]]> Fri, 18 Jan 2013 06:36:41 -0600 CY3687 MoBL-USB FX2LP18 Development Kit http://www.cypress.com/?rID=14300

-->

 

The development kits for the MoBL-USB FX2LP18(TM) family provide complete hardware and software solutions for accelerating the firmware and device driver development for all the products in the family. The development kits use the actual silicon for the entire development. Cypress's software utilities and example firmware allow the user to generate USB traffic in hours, not weeks!
 

Cypress includes an evaluation version of the 8051 Keil Software Tools in the USB 2.0 development kit. The evaluation version of the C-Compiler lets the designer write 8051 microcontroller applications in C and still get the efficiency and speed of assembly language. Advanced features from Keil tools include the ability to single step through code. This makes it easy to detect errors, handle source level debugging, and set breakpoints. With the ability to debug code one line at a time and to quickly compile and one-step download new code, developers have a more efficient means to complete firmware faster than using emulators. The supplied Keil tools are fully functional, but are limited in object size to 4 kilobytes.

 

New! The new generation of the General Programmable Interface (GPIF) Tool is available. Download GPIF Designer now!


Hardware Description

The kit includes the following: MoBL-USB development board with CY7C68053-56BAXC, peripheral board for prototyping, USB cable, and an RS232 9-pin to 9-pin cable.

For part details you can access the MoBL-USB(R) FX2LP18 Technical Reference Manual (TRM) at:
http://www.cypress.com/?rID=14666
]]> Fri, 18 Jan 2013 06:29:14 -0600 Code/Memory Banking Using EZ-USB® - AN58170 http://www.cypress.com/?rID=40118
The EZ-USB® family of chips has an 8051 core. The 8051 core has a 16-bit address line and is only able to access 64 KB of memory. However, the firmware size sometimes exceeds 64 KB This application note describes methods of overcoming this 64 KB limitation and also demonstrates the implementation of one such method.
]]> Thu, 17 Jan 2013 05:28:50 -0600 CY3688 MoBL-USB™ TX2UL Development Kit http://www.cypress.com/?rID=17668

The TX2UL is the industry's smallest Hi-Speed USB PHY and supports both High-Speed (480Mbits/sec) and Full-Speed (12Mbits/sec) modes. TX3LP18 answers the need for a ULPI interfaced Hi-Speed USB2.0 transceiver for use with next generation processors. Its small packaging and low power consumption make it a perfect solution for mobile applications.

Design and integrate TX2UL into your platform today with the help of the MoBL-USB™ TX3LP18 Development Kit. The CY3688 can be connected to any existing development platform with a ULPI interface, enabling system designers to easily integrate high-speed USB functionalities into their applications.

CY3688 board features include: the TX2UL device itself, USB connector, ULPI connector and three separate power measurement test points. To provide more flexibility in the configuration of the board, jumper options are available to toggle power supply and ULPI controller options.

Hardware Description:

Kit contents include:

  • MoBL-USB™ TX2UL DVK Board
  • Power supply
  • USB cable
  • Quick Start Booklet
  • Complete documentation CD including a comprehensive user guide as well as board schematic and layout

To order, please contact your local sales distributor.

]]> Tue, 15 Jan 2013 04:55:01 -0600 Implementing an 8-Bit Parallel MPEG2-TS Interface Using Slave FIFO Mode in FX2LP - AN58069 http://www.cypress.com/?rID=39714 The example code uses EZ-USB FX2LP™ (CY7C68013/14/15/16) at the receiver end and a data generator as the source for the data stream. The hardware connections and example code are included with this application note. In addition, this application note describes a design example that uses this interface.

Introduction

The EZ-USB FX2LP is an excellent solution if you want to a high-performance high-speed USB to a design. In applications similar to a TV dongle, an MPEG2-TS to USB Bridge is critical. The EZ-USB FX2LP not only takes care of glueless logic, but also makes it easier for the designer to complete the design. This application note addresses the hardware connections and example firmware required to implement the MPEG2-TS interface using the Slave FIFO mode.

]]> Thu, 10 Jan 2013 04:32:52 -0600 AN50963 - EZ-USB® FX1™/FX2LP™ Boot Options http://www.cypress.com/?rID=34253 Thu, 27 Dec 2012 01:06:17 -0600 AN58009 - Serial (UART) Port Debugging of FX1/FX2LP Firmware http://www.cypress.com/?rID=39786 This application note describes the code to be added to FX2LP firmware for serial port debugging. This code enables the developer to print debug messages and real-time values of variables to the HyperTerminal program on a Windows computer or to capture it in a file using the UART in FX2LP.

]]> Wed, 26 Dec 2012 08:02:17 -0600 CY3684 EZ-USB FX2LP Development Kit http://www.cypress.com/?rID=14321


The development kits for the EZ-USB FX2LP™ family provide complete hardware and software solutions for accelerating the firmware and device driver development for all the products in the family. The development kits use the actual silicon for the entire development. Cypress's software utilities and example firmware allow the user to generate USB traffic in hours, not weeks!

Cypress includes an evaluation version of the 8051 Keil Software Tools in the USB 2.0 development kit. The evaluation version of the C-Compiler lets the designer write 8051 microcontroller applications in C and still get the efficiency and speed of assembly language. Advanced features from Keil tools include the ability to single step through code. This makes it easy to detect errors, handle source level debugging, and set breakpoints. With the ability to debug code one line at a time and to quickly compile and one-step download new code, developers have a more efficient means to complete firmware faster than using emulators. The supplied Keil tools are fully functional, but are limited in object size to 4 kilobytes.
 

New! The new generation of the General Programmable Interface (GPIF) Tool is available. Download GPIF Designer now!

 

For part delails you can access the EZ-USB® Technical Reference Manual (TRM) at http://www.cypress.com/?rID=38232.

For software collaterals download SuiteUSB (http://www.cypress.com/?rID=34870)


Hardware Description

The kit includes the following: EZ-USB development board with CY7C68013A-128AXC, peripheral board for prototyping, USB cable, and an RS232 9-pin to 9-pin cable.

Related Datasheet: CY7C68013A
]]> Fri, 21 Dec 2012 03:54:53 -0600 Building Custom .nx2 File - KBA83970 http://www.cypress.com/?rID=38831 Answer: New .nx2 file may be built using BldNx2.exe utility that comes with CY3686 SDK. The hex file selection for the custom .nx2 file desired, which is to be downloaded onto the NX2LP Flex Kit, is made on the basis of the page size of the NAND Flash, the NX2LP is interfacing with. The BldNx2.exe requires two separate set of firmware: 512-NAND firmware inand_fw.hex and either 2K-NAND firmware, nand_mc2k.hex or 4K-NAND firmware, nand_mc4k.hex.

]]> Thu, 20 Dec 2012 02:45:23 -0600 Utilization of the Unused GPIF Control Lines - KBA83964 http://www.cypress.com/?rID=38449 Answer: No, triggering of the GPIF does not change the state of the unused control lines. This is an advantage in a situation when we are using only a few of the GPIF control lines. Let us say, of the 6 available control lines, we are using only 2 for GPIF and the rest 4 can be used for other purposes. When the GPIF is idle, we can manipulate (enable and drive a value) the state of the unused 4 control lines using the GPIFIDLECTL register. Even when the GPIF is triggered, the unused control lines will retain the value they were initialized to in the GPIFIDLECTL register.

]]> Thu, 20 Dec 2012 02:38:31 -0600 FX2LP does not enumerate for Firmware (code+xdata) of Size Greater than 16 K - KBA83973 http://www.cypress.com/?rID=39838 Answer: Check in your .m51 file where the compiler is placing the descriptor files. The issue might be that the compiler is putting the descriptor table into external memory. When this happens fw.c relocates the descriptor table to memory location 0x0080 where it overwrites some portion of the code. This might cause error in enumeration or incorrect functioning of some part of code. You can specify the starting location of your code memory after leaving space for the interrupt vector tables and the descriptor table.


For example, in the BL51 locate tab, you can specify your code to begin at a location greater than (0x0080 + length of your descriptor table). Here, 0x0000 - 0x0080 will contain the interrupt vector table. For example if the length of your descriptor table is 80h, you can safely start your code from 0x120h.

]]> Thu, 20 Dec 2012 02:09:24 -0600 Multiple FX2LP Devices Connected to Host - KBA83974 http://www.cypress.com/?rID=39823 Answer: The iSerialNumber byte in the DeviceDescriptor can be used to uniquely identify the devices even if the devices have the same VID/PID.

]]> Thu, 20 Dec 2012 01:54:16 -0600 AN70983 - EZ-USB FX2LP™ Bulk Transfer Application in C# Using SuiteUSB C# Library (CyUSB.dll) http://www.cypress.com/?rID=53165 The content of “AN70983 - EZ-USB FX2LP™ Bulk Transfer Application in C# Using SuiteUSB C# Library (CyUSB.dll)” is now available in the Cypress USBSuite Application Development Guide. Please refer to this guide for more details on developing applications using CyUSB.dll/CyAPI.lib libraries.-->

Overview

Cypress EZ-USB FX2LP™ is one of the most popular programmable high-speed USB controllers in the industry. This application note has two parts.

Host application: This application is built on the Microsoft Visual C# 2008 platform. The application communicates to BULK IN and BULK OUT endpoints of  FX2LP™ using the interfaces given by CyUSB.dll. The CyUSB.dll, in-turn communicates internally with the Cypress USB driver CyUSB.sys, for talking to these endpoints.

Target firmware: This describes related firmware residing on target, which transfers the data sent from the host application on BULK OUT endpoint to the BULK IN endpoint, for sending it back to the host application in loopback fashion.

 

]]> Wed, 19 Dec 2012 03:04:43 -0600 AN70486 - EZ-USB® FX2LP™ Host Application in VC++ 2008 Using Suite USB Library (CyUSB.dll) http://www.cypress.com/?rID=53167 The content of “AN70486 - EZ-USB® FX2LP™ Host Application in VC++ 2008 Using Suite USB Library (CyUSB.dll)” is now available in the Cypress USBSuite Application Development Guide. Please refer to this guide for more details on developing applications using CyUSB.dll/CyAPI.lib libraries.

-->

Overview

AN70486 describes a host application built on the Microsoft Visual C++ 2008 platform that uses CyUSB.dll to communicate with Cypress USB driver, CyUSB.sys. The host application communicates with the BULK IN and BULK OUT endpoints of FX2LP, using the interfaces provided by the APIs of CyUSB.dll. The CyUSB.dll in-turn communicates internally with Cypress USB driver (CyUSB.sys), for talking to these endpoints. This host application implements the transfer only with devices that pass the particular VID/PID identification. The example device used in this application note is the Bulkloop device. The firmware that is attached along with this application note causes a loop back of data inside the device. Thus this host application, with the attached Bulkloop device, demonstrates the loopback of data.

 

]]> Wed, 19 Dec 2012 03:02:48 -0600 Interfacing SRAM with FX2LP over GPIF - AN57322 http://www.cypress.com/?rID=39392 It describes how to create read and write waveforms using the GPIF Designer. This application note is also useful as a reference to connect FX2LP to other SRAMs.

Introduction

The GPIF is an 8-bit or 16-bit programmable parallel interface that helps to reduce system costs by providing a glueless interface between the EZ-USB FX2LP™ and an external peripheral. It is a highly configurable and flexible piece of hardware that allows you to get the most out of your USB 2.0 design. GPIF fits into applications that need an external mastering device to exchange information.

]]> Wed, 28 Nov 2012 23:52:45 -0600 FX2LP DMB-T/H TV Dongle Reference Design Guide http://www.cypress.com/?rID=37775 FX2LP_Top
FX2LP_Bottom



The Cypress FX2LP and Legend Silicon based DMB-TH TV Dongle Reference Design consists of all files required for the complete design. It has a tuner from ADI, which tunes the RF signal to the Legend Silicon demodulator. This sends the TV signals in MPEG2_TS stream to Cypress FX2LP, which then sends them to the PC through the USB interface. In the PC, the BDA driver forwards the data from the USB to the Media Player application where it is played.

Reference Design Contents:
  1. Schematics in .pdf and .dsn format
  2. Gerber files
  3. Bill of Materials
  4. Firmware source code
  5. Driver Object Code
  6. Reference Design Guide
     
OS Supported: The above given reference design has been tested with Windows XP/32 bit platform and WHQL certified. The process of testing with other OS platforms are underway and will be updated once it is done.

Note: We recommend the users not to use the reference design with any other OS Platform other than Win XP32.

For more information about the entire design , please contact your local Cypress sales office.
]]> Wed, 21 Nov 2012 22:29:03 -0600 CY3686 EZ-USB NX2LP-Flex™ USB 2.0 Development Kit http://www.cypress.com/?rID=14320

CY3686 EZ-USB NX2LP-Flex Development Kit

The CY3686 EZ-USB NX2LP-Flex(TM) USB 2.0 Development Kit is designed to accelerate your development of a NAND flash based USB 2.0 application featuring industry's first and only programmable USB 2.0 NAND controller (CY7C68033 and CY7C68034). Design a feature-rich thumbdrive with fingerprint sensor or GPS or add NAND storage to your DVB card. NX2LP-flex eliminates the need of EEPROMs in your firmware based designs!

The combination of revolutionary hardware and programming utility software provides the designer with complete development and manufacturing support. This development kit allows scalable testing and evaluation of the Cypress EZ-USB NX2LP-Flex NAND Flash Controller device (CY7C68033 and CY7C68034) with different NAND flash devices. The hardware platform is designed to support between 1-8 single-device NAND flash chips, or 1-4 dual-device NAND flash chips for scalable density testing.

Additionally, Cypress includes a Device Programming Utility to assist in the manufacturing environment. This programming utility allows easy NAND flash configuration during the design and manufacturing process. Use NX2LP-Flex Release Notes.pdf as your starting point.

Kit Contents

This kit includes the following items:
  • EZ-USB NX2LP-Flex DVK Platform Board
  • EZ-USB FX2LP Base Board
  • Prototyping Board
  • EZ-USB NX2LP-Flex DVK CD-ROM - CD-ROM provides kit documentation, hardware schematics and bills of materials, development tools, and Manufacturing programming tools (see CD-ROM Contents below)
  • USB Cable - USB type A-to-type B cable connects the USB host PC to the DVK board
  • Documentation Packet - Contains welcome letter and selected documentation
     
Software Contents
  • Firmware Source and Object Code (supports 512, 2K and 4K page sized NAND devices)
  • Manufacturing Tools
  • GPIF_Designer Tool
     
Documentation Contents
  • EZ-USB NX2LP-Flex Customer Welcome Letter
  • EZ-USB NX2LP-Flex Development Kit User's Guide
  • EZ-USB NX2LP-Flex Firmware Design Notes
  • EZ-USB NX2LP-Flex Datasheet
  • EZ-USB FX2LP Datasheet
  • EZ-USB FX2LP-DVK User's Guide
  • USB Mass Storage Test Guide

Note: MfgTool_Directory_Update_Nov_2012.zip contains following updates

  • CY3686 Firmware fix for Toshiba 2K SLC NAND parts (TC58NVG0S3ETA00, TC58DVG02D5TA00).
  • Added new SLC part-Spansion -S34ML01G1 to the compatibility list.
Refer Readme.txt for more details.
]]> Tue, 06 Nov 2012 23:45:08 -0600 AN74505 - EZ-USB® FX2LP™ - Developing USB Application on MAC OS X using LIBUSB http://www.cypress.com/?rID=59674 Introduction

AN74505 describes a host application built on the MAC OS platform that uses libusb. The host application (Cocoa Application) communicates with the BULK IN and BULK OUT endpoints of FX2LP, using the interfaces provided by the APIs of libusb. This host application implements the transfer only with devices that pass the particular VID/PID(=0x04B4/0x1004) identification.

Cypress also provides a Cypress SuperSpeed Suite for MacOS platforms, which includes a Cypress API wrapper based on LibUSB. The Wrapper library for MacOS can be downloaded from this link http://www.cypress.com/?rID=57990

]]> Mon, 05 Nov 2012 03:38:54 -0600 RESERVED Pin of FX2/FX2LP - KBA83346 http://www.cypress.com/?rID=71317 Answer: The RESERVED pin of FX2/FX2LP USB device is used for internal testing and verification, and should be connected to GND in the design.

]]> Tue, 30 Oct 2012 02:48:46 -0600 Gerber Files of CY3684 FX2LP Development Kit – KBA83343 http://www.cypress.com/?rID=71318 Answer: The Gerber files can be found in the link CY3684 EZ-USB FX2LP Development Kit in the zip file PDC-9086-A.zip.

]]> Tue, 30 Oct 2012 02:46:26 -0600 Can AT2LP be used for SATA Drives - KBA83342 http://www.cypress.com/?rID=49309 Answer: No, AT2LP cannot be used for SATA drives. It only supports PATA drives. The PATA interface on AT2LP enables the use of hard disk drives (HDD), Compact Flash, and solid state drives (SSD) in your design.

]]> Thu, 25 Oct 2012 00:42:09 -0600 Errata Document for CY7C68001 EZ-USB SX2(TM) http://www.cypress.com/?rID=14343 This document describes the errata for the EZ-USB SX2/CY7C68001. Details include errata trigger conditions, available workarounds, and silicon revision applicability. This document should be used to compare to the data sheet for this device to fully describe the device functionality.

]]> Mon, 22 Oct 2012 04:51:50 -0600 FX1/FX2LP - Vendor Request Example - KBA82848 http://www.cypress.com/?rID=26603 Answer: Cypress provides an example Vend_ax with the CY3684 development kit contents, which demonstrates the implementation of vendor command handlers. After installing the CY3684 DVK SIO successfully, you could find the Vend_ax example in the directory: “C:\Cypress\USB\CY3684_EZ-USB_FX2LP_DVK\1.0\Firmware\Vend_ax”. Furthermore, we also have an application note “Vendor Command Design Guide for FX2LP - AN45471” to demonstrate how to use the vendor commands

]]> Thu, 18 Oct 2012 03:30:42 -0600 AN66806 - Getting Started with EZ-USB® FX2LP™ GPIF http://www.cypress.com/?rID=12937 This document describes the architecture and implementation of FX2LP GPIF, and discusses application usage models and debugging strategies. One end-to-end example is also discussed to reinforce GPIF concepts and provide you with a concrete design example. Note: This application note was previously titled EZ-USB FX2LP GPIF Design Guide.

Introduction

The GPIF is a programmable parallel interface that provides a glue-less interface between the EZ-USB® FX2LP™ and an external peripheral. GPIF enables various applications that require FX2LP to function as a master to an external device over a parallel interface. A wide variety of protocols can be implemented using GPIF like EIDE/ATAPI, printer, parallel port (IEEE P1284), Utopia, etc. This document describes the architecture and implementation of FX2LP GPIF, and discusses application usage models and debugging strategies. One end-to-end example is also discussed to reinforce GPIF concepts and provide a concrete design example.

]]> Tue, 16 Oct 2012 01:42:15 -0600 AN73609 - EZ-USB® FX2LP™/ FX3™ Developing Bulk-Loop Example on Linux http://www.cypress.com/?rID=57610 Introduction

This document and the accompanying software demonstrate how simple user-mode, using the libusb, Linux applications can communicate directly to EZ-USB based USB devices, without any need to write a kernel device driver. The author assumes the reader has a working knowledge of Linux and gone through FX2LP documentation as well as windows based FX2LP tools/utilities.



Cypress also provides a CyUSB Suite for Linux platforms, which includes a Cypress API wrapper based on LibUSB. Host application examples are also provided. The FX3 SDK for Linux, v1.2.1 can be downloaded from this link http://www.cypress.com/?rID=57990

]]> Mon, 15 Oct 2012 04:24:14 -0600 AN65209 - Getting Started with FX2LP™ http://www.cypress.com/?rID=48371 AN65209 gets you started with the EZ-USB® FX2LP™ USB 2.0 Device Controller. It provides background information on USB 2.0 and it details hardware, firmware, and software aspects of working with the FX2LP.

]]> Mon, 15 Oct 2012 01:13:43 -0600 To Detect When a Self-Powered USB Device is Plugged - KBA82850 http://www.cypress.com/?rID=70461 Answer: The best way to detect, when the USB cable of self-powered device is plugged in, is to monitor VBUS with one of the I/O port pins. VBUS can be either monitored in the main loop or another popular method is to setup an interrupt timer to a fixed interval, and in the interrupt ISR look at the port pin (VBUS). You can then take the appropriate action depending on the state of VBUS. For more details on implementing VBUS monitoring, refer to application note “Monitoring the EZ-USB FX2LP™ VBUS - AN15813”.

]]> Thu, 11 Oct 2012 01:18:04 -0600 C Compiler for FX2/FX2LP - KBA82844 http://www.cypress.com/?rID=70455 Answer: Cypress does not provide any C compiler for FX1/FX2LP. Cypress recommends Keil uVision compiler for FX1/FX2LP. The Cypress development kit CY3684 has the Keil evaluation version with 4K code size limit.

]]> Thu, 11 Oct 2012 00:15:55 -0600 No drive letter appears when binding NX2LP/NX2LP-Flex/AT2/AT2LP device to Cypress manufacturing drivers http://www.cypress.com/?rID=38852 The device is bound to cypress manufacturing driver just to program the EEPROM connected to the device with the appropriate configuration information. So the device is not bound to a mass storage driver and hence drive letter does not appear in windows. When the device is bound to mass storage driver, drive letter will appear.
Note:- With AT2/AT2LP series and the older ISD300xx series of mass storage solutions, mass storage driver for earlier OSes of windows are provided. So confusion between mass storage driver and manufacturing driver occurs sometimes.

]]> Wed, 10 Oct 2012 08:24:14 -0600 Guide to Boot EZ-USB from External Parallel Memory - AN55037 http://www.cypress.com/?rID=38168 The content of AN55037 is now available in the application note AN50963 - EZ-USB® FX1™/FX2LP™ Boot Options

]]> Fri, 05 Oct 2012 03:17:15 -0600 AN61744 - Introduction to CyAPI.lib Based Application Development Using VC++ http://www.cypress.com/?rID=43538 The content of “AN61744 - Introduction to CyAPI.lib Based Application Development Using VC++” is now available in the Cypress USBSuite Application Development Guide. Please refer to this guide for more details on developing applications using CyUSB.dll/CyAPI.lib libraries.

]]> Mon, 01 Oct 2012 03:28:33 -0600 CY7C68033/CY7C68034: EZ-USB® NX2LP-Flex™ Flexible USB NAND Flash Controller http://www.cypress.com/?rID=14187 EZ-USB® NX2LP-Flex™ Flexible USB NAND Flash Controller

CY7C68033/CY7C68034 Silicon Features

  • Certified compliant for bus- or self-powered USB 2.0 operation (TID# 40490118)
  • Single-chip, integrated USB 2.0 transceiver and smart SIE
  • Ultra low power – 43 mA typical current draw in any mode
  • Enhanced 8051 core
    • Firmware runs from internal RAM that is downloaded from NAND Flash at startup
    • No external EEPROM required
  • 15 KBytes of on-chip code/data RAM
    • Default NAND firmware – 8 kB
    • Default free space – 7 kB
  • For more, see pdf
     

Overview

Cypress Semiconductor Corporation’s EZ-USB® NX2LP-Flex (CY7C68033/CY7C68034) is a firmware-based, programmable version of the EZ-USB NX2LP (CY7C68023/CY7C68024), which is a fixed-function, low power USB 2.0 NAND Flash controller. By integrating the USB 2.0 transceiver, serial interface engine (SIE), enhanced 8051 microcontroller, and a programmable peripheral interface in a single chip, Cypress has created a very cost-effective solution that enables feature-rich NAND Flash-based applications.

]]> Thu, 20 Sep 2012 08:01:09 -0600 AN4078 - Migrating From EZ-USB® FX2™ to EZ-USB FX2LP™ http://www.cypress.com/?rID=12968 The EZ-USB FX2LP(TM) is a next-generation USB high-speed controller. EZ-USB FX2LP enhances the functionality of the EZUSB FX2(TM) while minimally effecting existing designs. This application note serves two purposes:

  1. Assist in migrating existing EZ-USB FX2 (also referred to as FX2 in this application note) applications to EZ-USB FX2LP (also referred to as FX2LP in this application note).
  2. Assist the designers familiar with FX2 in creating FX2LP based applications.

A summary of the main items to consider while replacing the FX2 in an existing application with an FX2LP part is provided. The changes are categorized into required essential changes for all FX2LP applications migrating from FX2 and other applications based changes that might be required in your application due to additional enhanced feature in FX2LP.

]]> Tue, 11 Sep 2012 04:54:05 -0600 AN76348 - Migrating from EZ-USB® FX2LP™ Based Design to EZ-USB FX3 Based Design http://www.cypress.com/?rID=61948 Introduction

Cypress EZ-USB FX3 is the next generation USB 3.0 peripheral controller, which provides highly integrated and flexible features that enable developers to add USB 3.0 functionality to any system.

EZ-USB FX3 has a fully configurable, parallel, general programmable interface called GPIF II, which can connect to an external processor, ASIC, or FPGA. The GPIF II is an enhanced version of the GPIF in FX2LP, Cypress’s flagship USB 2.0 product. GPIF II provides easy and glueless connectivity to popular interfaces, such as asynchronous SRAM, asynchronous and synchronous address data multiplexed interface, and many others.

]]> Thu, 06 Sep 2012 00:29:56 -0600 CY3686 EZ-USB® NX2LP-Flex™ Development Kit Guide http://www.cypress.com/?rID=43628 The Cypress Semiconductor EZ-USB® NX2LP-Flex™ Controller chip (CY7C68033) is a programmable USB NAND controller based on the FX2LP (CY7C68013A) silicon. The NX2LP-Flex architecture enables USB data transfer rates of over 53 MB for every second. This is the maximum allowable USB 2.0 bandwidth, while still using a low-cost 8051 microcontroller in a small 56-pin QFN  package While both CY7C68033 and CY7C68034 are functionally similar, the latter is more appropriate for battery-powered applications because of its low standby power consumption.

The CY3686 EZ-USB NX2LP-Flex Development Kit (DVK) is provided to customers for evaluating and developing NAND Flash USB mass storage applications using the NX2LP-Flex controller. The CY3686 NX2LP-Flex DVK is a combination of two development platforms:

  • The CY3684 EZ-USB FX2LP-DVK, based on Cypress's most popular USB 2.0 general purpose microcontroller, the EZ-USB FX2LP
  • The NX2LP-Flex development board, based on Cypress's NAND flash controller EZ-USB
    NX2LP-Flex

This enables users to integrate their custom application with NAND flash solutions.

]]> Wed, 29 Aug 2012 01:19:12 -0600 AN45197 - Using the Hex2bix Conversion Utility http://www.cypress.com/?rID=17627 This application note is removed and the Hex2bix utility tool is present under C:\Cypress\USB\bin once the CY3684 EZ-USB FX2LP Development Kit is installed. The following link has the CY3684 FX2LP Development kit CD content: http://www.cypress.com/?rID=14321. This includes the Hex2Bix tool. A detailed description of how to go about using the Hex2Bix utility is available in the readme.txt file in C:\Cypress\USB\Util\Hex2Bix. The source code of this utility is also present in the same folder.

]]> Tue, 28 Aug 2012 05:22:01 -0600 AN63787 - EZ-USB® FX2LP™ GPIF and Slave FIFO Configuration Examples Using 8-bit Asynchronous Interface http://www.cypress.com/?rID=45850 Tue, 28 Aug 2012 02:20:58 -0600 EZ-USB® FX2LPTM/FX2LP18 56-Ball BGA PCB Layout Guidelines http://www.cypress.com/?rID=12719 The 56-ball VFBGA version of the FX2LPTM(CY7C68013A) or FX2LP18(CY7C68053) USB microcontroller chips is a smaller package version of the QFN package. The 56-ball package meets the needs of space sensitive printed circuit board (PCB) designs. This application note provides guidelines for designing a PCB with either FX2LP(CY7C68013A) or FX2LP18(CY7C68053).

-->

The 56-ball VFBGA version of the FX2LPTM(CY7C68013A) or FX2LP18(CY7C68053) USB microcontroller chips is a smaller package version of the QFN package. The 56-ball package meets the needs of space sensitive printed circuit board (PCB) designs. Please visit CY3687 MoBL-USB FX2LP18 development kit webpage www.cypress.com/go/cy3687. Install the kit contents. Refer to /Hardware directory for reference Gerber and PCB layout files and /Documentation directory for guidelines on PCB layout.

]]> Wed, 22 Aug 2012 06:04:14 -0600 AN46860 - Schematic Review Checklist for West Bridge® Astoria™ http://www.cypress.com/?rID=12963
West Bridge® Astoria™ is a USB and mass storage peripheral control device that contains three main ports: processor interface (P-port), mass storage support (S-port), and USB interface (U-port). This application note discusses the hardware recommendations and guidelines to design a system using Astoria.

]]> Tue, 14 Aug 2012 04:41:13 -0600 AN023 - USB Compliance Testing Overview http://www.cypress.com/?rID=12995 One of the secrets to USB’s success has been the compliance-testing program. This program verifies that your device meets the specification and works well with other USB devices.

]]> Fri, 10 Aug 2012 03:24:37 -0600 AN15456 - Guide to Successful EZ-USB(R) FX2LP(TM) and EZ-USB FX1(TM) Hardware Design and Debug http://www.cypress.com/?rID=12956 This application note outlines a process that catches many of the most likely causes of EZ-USB® FX2LP™ and EZ-USB FX1™ hardware problems. It also facilitates the process of catching potential problems before building a board and assists in the debugging when getting a board up and running.

]]> Fri, 10 Aug 2012 02:58:50 -0600 Troubleshooting USB 2.0 Signal Quality - AN13632 http://www.cypress.com/?rID=12947 AN13632 describes problems that can occur when measuring the signal quality of the universal serial bus (USB) 2.0. Its purpose is to help the designer isolate setup issues from design issues.

]]> Fri, 10 Aug 2012 02:57:56 -0600 Mac OS X: Getting Started with USB - AN1105 http://www.cypress.com/?rID=12929 Developing USB drivers for Mac OS X is completely different than developing USB drivers on Mac OS 9. This application notes describe how to develop USB driver for Mac OS X. Include introducing the kernel of Mac OS X and driver architecture. Some useful example codes also be attached.

]]> Fri, 10 Aug 2012 02:57:09 -0600 AN4067 - Endpoint FIFO Architecture of EZ-USB FX1/FX2LP™ http://www.cypress.com/?rID=12926 This application note describes the FIFO architecture of the EZ-USB FX1, the full speed USB microcontroller and the EZ-USB FX2LP„·, the high-speed USB microcontroller. The purpose of this application note is to help the user understand the very basics of the FX1/FX2LP and get familiar with the terminologies used while describing the data flow in FX1/FX2LP. The application note addresses and discusses the following:

  • Three modes of operation of the FX1/FX2LP
  • Endpoint Configuration and Multiple Buffering
  • Three Domains that form the basic component of the FIFO architecture
  • Arming and committing endpoint buffers
  • Endpoint operation in manual vs. auto mode
]]> Fri, 10 Aug 2012 02:56:40 -0600 AN64408 - Getting Started with NX2LP-Flex(TM) http://www.cypress.com/?rID=46712

This application note presents the features and the resources available to speed EZ-USB NX2LP-Flex™ based design from concept to production.

]]> Wed, 08 Aug 2012 13:04:56 -0600 CY7C68023, CY7C68024: EZ-USB NX2LP™ USB 2.0 NAND Flash Controller http://www.cypress.com/?rID=14185 EZ-USB NX2LP™ USB 2.0 NAND Flash Controller

Features

  • High (480-Mbps) or Full (12-Mbps) Speed USB Support
  • Both Common NAND Page Sizes Supported
    • 512 bytes — Up to 1 Gbit Capacity
    • 2K bytes — Up to 8 Gbit Capacity
  • Eight Chip Enable Pins
    • Up to 8 NAND Flash Single Device Chips
    • Up to 4 NAND Flash Dual Device Chips
  • Industry Standard ECC NAND Flash Correction
    • 1 bit per 256 correction
  • For more, see pdf
     

Introduction

The EZ-USB NX2LP™ (NX2LP) implements a USB 2.0 NAND Flash controller. This controller adheres to the Mass Storage Class Bulk-Only Transport Specification. The USB port of the NX2LP is connected to a host computer directly or through the downstream port of a USB hub. Host software issues commands and data to the NX2LP and receives status and data from the NX2LP using standard USB protocol.

]]> Mon, 30 Jul 2012 07:05:22 -0600 CY7C68300C, CY7C68301C, CY7C68320C, CY7C68321C: EZ-USB AT2LP™ USB 2.0 to ATA/ATAPI Bridge http://www.cypress.com/?rID=14189 EZ-USB AT2LP™ USB 2.0 to ATA/ATAPI Bridge

Features

  • Fixed Function Mass Storage Device - Requires no Firmware
  • Two Power Modes: Self Powered and USB Bus Powered to enable Bus Powered CF (CompactFlash) Readers and Truly Portable USB Hard Drives
  • Certified Compliant for USB 2.0 (TID# 40490119), the USB Mass Storage Class, and the USB Mass Storage Class Bulk-Only Transport (BOT) Specification
  • Operates at High-Speed (480 Mbps) or Full-Speed (12 Mbps) USB
  • Complies with ATA/ATAPI-6 Specification
  • Supports 48-bit Addressing for Large Hard Drives
  • Supports ATA Security Features
  • Supports any ATA Command with the ATACB Function
  • Supports Mode for BIOS Boot Support
  • For more, see pdf
     

Introduction

The EZ-USB AT2LP™ (CY7C68300C/CY7C68301C and CY7C68320C/CY7C68321C) implements a fixed-function bridge between one USB port and one or two ATA- or ATAPI-based mass storage device ports. This bridge adheres to the Mass Storage Class Bulk-Only Transport Specification (BOT) and is intended for bus and self powered devices.

]]> Mon, 30 Jul 2012 06:45:06 -0600 CY7C68001: EZ-USB SX2™ High Speed USB Interface Device http://www.cypress.com/?rID=34693 EZ-USB SX2™ High Speed USB Interface Device

Features

  • USB 2.0-Certified Compliant
    • Test ID number 40000713 on USB-Implementor’s Form (USB-IF) integrators list
  • Operates at High (480 Mbps) or full (12 Mbps) Speed
  • Supports Control Endpoint 0:
    • Used for handling USB device requests
  • Supports four Configurable Endpoints that share a 4-KB FIFO Space
    • Endpoints 2, 4, 6, 8 for application-specific control and data
  • Standard 8- or 16-bit external master interface
    • Glueless interface to most standard microprocessors DSPs, ASICs, and FPGAs
  • For more, see pdf


Introduction

The EZ-USB SX2™ USB interface device is designed to work with any external master, such as standard microprocessors, DSPs, ASICs, and FPGAs to enable USB 2.0 support for any peripheral design. SX2 has a built in USB transceiver and Serial Interface Engine (SIE), along with a command decoder for sending and receiving USB data.

]]> Mon, 30 Jul 2012 06:37:30 -0600 CY7C68013A, CY7C68014A, CY7C68015A, CY7C68016A: EZ-USB® FX2LP™ USB Microcontroller High-Speed USB Peripheral Controller http://www.cypress.com/?rID=38801 EZ-USB® FX2LP™ USB Microcontroller High-Speed USB Peripheral Controller

Features

  • USB 2.0 USB IF high speed certified (TID # 40460272)
  • Single chip integrated USB 2.0 transceiver, smart SIE, and enhanced 8051 microprocessor
  • Fit, form, and function compatible with the FX2
    • Pin compatible
    • Object code compatible
    • Functionally compatible (FX2LP is a superset)
  • Ultra low power: ICC No more than 85 mA in any mode
    • Ideal for bus and battery powered applications
  • Software: 8051 code runs from:
    • Internal RAM, which is downloaded through USB
    • Internal RAM, which is loaded from EEPROM
    • External memory device (128 pin package)
  • For more, see pdf

Functional Overview

USB Signaling Speed

FX2LP operates at two of the three rates defined in the USB Specification Revision 2.0, dated April 27, 2000:

  • Full speed, with a signaling bit rate of 12 Mbps
  • High speed, with a signaling bit rate of 480 Mbps

FX2LP does not support the low speed signaling mode of 1.5 Mbps.

]]> Mon, 30 Jul 2012 06:14:24 -0600 CY7C68053: MoBL-USB™ FX2LP18 USB Microcontroller http://www.cypress.com/?rID=13637 MoBL-USB(TM) FX2LP18 USB Microcontroller

Features

  • USB 2.0 - USB-IF High-Speed and Full-Speed Compliant (TID# 40000188)
  • Single-chip integrated USB 2.0 transceiver, smart SIE, and enhanced 8051 microprocessor
  • Ideal for mobile applications (cell phone, smart phones, PDAs, MP3 players)
    • Ultra low power
    • Suspend current: 20 μA (typical)
  • Software: 8051 code runs from:
    • Internal RAM, which is loaded from EEPROM
  • 16 kBytes of on-chip Code/Data RAM
  • Four programmable BULK/INTERRUPT/ISOCHRONOUS endpoints
  • For more, see pdf
     

Functional Overview

Cypress Semiconductor Corporation's MoBL-USB(TM) FX2LP18 (CY7C68053) is a low voltage (1.8 volt) version of the EZ-USB(R) FX2LP (CY7C68013A), which is a highly integrated, low-power USB 2.0 microcontroller. By integrating the USB 2.0 transceiver, serial interface engine (SIE), enhanced 8051 microcontroller, and a programmable peripheral interface in a single chip, Cypress has created a very cost-effective solution that provides superior time-to-market advantages with low power to enable bus powered applications.      More...

]]> Fri, 27 Jul 2012 03:50:20 -0600 Configuring a Xilinx Spartan-3E FPGA Over USB Using EZ-USB FX2LP™ - AN63620 http://www.cypress.com/?rID=46029

This application note demonstrates a technique for dynamically configuring a Field Programmable Gate Array (FPGA) over USB using EZ-USB FX2LP, a high-speed USB peripheral controller. Once the FPGA is configured, FX2LP can act as a high speed data-path between the USB host and the FPGA. This capability of FX2LP(CY7C68013A) helps FPGA based USB applications like logical analyzers, oscilloscopes, image processing and high-speed data acquisition.

]]> Tue, 24 Jul 2012 03:48:47 -0600 AN4053 - Streaming Data Through Isochronous or Bulk Endpoints on EZ-USB® FX2™ and EZ-USB FX2LP™ http://www.cypress.com/?rID=12967
This application note provides brief background information on what is involved while designing for a streaming application using the EZ-USB FX2(TM) or the EZ-USB FX2LP(TM) part. It provides information on streaming data through bulk endpoints, isochronous endpoints, and high-bandwidth isochronous endpoints along with pitfalls to consider and avoid while using the FX2/FX2LP for designing high-bandwidth applications.

]]> Tue, 24 Jul 2012 03:27:52 -0600 AN6077 - Implementing an 8-Bit Asynchronous Interface with FX2LP™ http://www.cypress.com/?rID=12946 AN6077 discusses how to configure the general programmable interface (GPIF) and slave FIFOs of the EZ-USB FX2LP™ to implement an 8-bit asynchronous interface. The GPIF is a programmable 8- or 16-bit parallel interface that reduces system costs by providing a glueless interface between the EZ-USB FX2LP and different types of external peripherals. The GPIF allows the EZ-USB FX2LP to perform local bus mastering to external peripherals implementing a wide variety of protocols. For example, EIDE/ATAPI, printer parallel port (IEEE P1284), Utopia, and other interfaces are supported using the GPIF block of the EZ-USB FX2LP. In this example, it masters the slave FIFO interface of another EZ-USB FX2LP.

]]> Tue, 24 Jul 2012 03:26:38 -0600 Firmware Optimization in EZ-USB® - AN61244 http://www.cypress.com/?rID=43047

The EZ-USB® family of chips has an 8051 core and uses the standard 8051 instruction set. However, it has a few enhancements compared to the standard 8051. This application note describes firmware optimization methods in EZ-USB. Some of these methods are common for any processor and some specific to the 8051 core of EZ-USB.

]]> Tue, 24 Jul 2012 03:17:33 -0600 Setting Up, Using, and Troubleshooting the Keil(TM) Debugger Environment - AN42499 http://www.cypress.com/?rID=12960 This application note is a step-by-step beginner's guide to using the Keil Debugger. This guide covers the serial cable connection from PC to SIO-1/0, the monitor code download, and required project settings. Additionally, the guidelines to start and stop a debug session, set breakpoints, step through code, and solve potential problems are considered.

]]> Tue, 24 Jul 2012 03:14:49 -0600 AN5078 - EZ-USB Hardware - Design considerations for EEPROM usage http://www.cypress.com/?rID=12948 EZ-USB® downloads firmware automatically into the on-chip RAM from the EEPROM connected to it. The purpose of this application note is to present recommended design guidelines for assuring the data integrity of serial EEPROM devices when used in EZ-USB designs.

]]> Tue, 24 Jul 2012 03:10:33 -0600 AN1193 - Using Timer Interrupt in Cypress EZ-USB® FX2LP™ Based Applications http://www.cypress.com/?rID=12919 The assumption is made that one has a general understanding of how interrupts work within the 8051 concept. When this program is run, you should be able to light the seven-segment LED on the FX2LP Development Board (CY3684) with a 0-9 count, and control the step rate (1s - 5s) using BULK OUT endpoint transfers from the EZ-USB Control Panel.

]]> Mon, 23 Jul 2012 03:38:15 -0600 AN1168 - High-speed USB PCB Layout Recommendations http://www.cypress.com/?rID=12982 This application note details guidelines for designing, controlled-impedance; high-speed USB printed circuit boards to comply with the USB specification. This note is applicable to all Cypress high-speed USB solutions. Some Cypress high-speed USB chips have separate application notes that address chip-specific PCB design guidelines.

]]> Mon, 23 Jul 2012 03:33:34 -0600 Monitoring the EZ-USB FX2LP(TM) VBUS - AN15813 http://www.cypress.com/?rID=12961 This application note explains the purpose and methods of monitoring VBUS from the upstream connector using the EZ-USB FX2LP.

]]> Mon, 23 Jul 2012 03:24:47 -0600 AN14558 - Implementing a SPI Interface with EZ-USB FX2LP™ http://www.cypress.com/?rID=49544 This application note demonstrates how to implement a SPI interface. It uses the EZ-USB FX2LP as a SPI Master and a SPI Serial EEPROM (25AA256) as a SPI slave. This example comes with a host application with which the user can access the EEPROM. The EZ-USB FX2LP firmware uses the ports mode and bit-bangs the General Purpose IOs to create the SPI interface. The hardware connection diagram and code listing is included.

]]> Mon, 23 Jul 2012 02:57:56 -0600 SPI Implementation Using Serial Mode-0 of EZ-USB FX2LP™ - AN67442 http://www.cypress.com/?rID=49176 This application note describes the implementation of serial peripheral interface (SPI) protocol using the FX2LP UART port in serial mode 0. This demonstration uses FX2LP as the SPI master for transferring data to and from an AT25080A EEPROM device. The example code includes functions to the Write/Read byte to and from AT25080A EEPROM.

]]> Mon, 23 Jul 2012 02:56:26 -0600 AN58764 - Implementing a Virtual COM Port using FX2LP http://www.cypress.com/?rID=40248 This application note explains how to implement a virtual COM port device using the standard Windows driver in FX2LP. This information helps in easy migration from UART to USB. The example code is provided with the application note, along with the required descriptors, class specific request handling, and the INF file required for enumeration. ]]> Fri, 20 Jul 2012 01:10:36 -0600 EZ-USB FX2LP™/AT2LP™ Reset and Power Considerations - AN064 http://www.cypress.com/?rID=12959 The Cypress EZ-USB FX2LP(TM) is a USB 2.0 high-speed device. It contains an 8051, 16K of program/data memory, 4K of endpoint buffers and a General Programmable Interface (GPIF) block. The EZ-USB AT2LP(TM) is a USB 2.0 high-speed ATA/ATAPI bridge chip. Both these chips have similar power and reset needs. This application note refers to the FX2LP, but is also applicable to AT2LP.

]]> Wed, 18 Jul 2012 01:52:23 -0600 Using A Resonator For USB - AN6070 http://www.cypress.com/?rID=12953 The basic requirement in this series of part is that the crystal requirements are driven by the USB specification requirement for bit rate stability. The primary control of this is the clock input.

]]> Wed, 18 Jul 2012 01:49:38 -0600 AN4051 - FX2LP GPIF Flow State Feature for UDMA http://www.cypress.com/?rID=12951 This appnote introduces the "flow state" feature to the GPIF.  The motivation behind this feature was to extend GPIF to handle ATAPI UDMA. It was therefore created with UDMA in mind, but is not limited to UDMA. By covering UDMA as a subset of its capabilities, the likelihood of capturing other bus protocols is heightened, giving it a value and lifetime that extends beyond just UDMA. This is in keeping with the basic philosophy of GPIF.

]]> Wed, 18 Jul 2012 01:47:00 -0600 QTP 092902: Automotive USB FX2LP (AT2LP) C8QR-3R Technology, Fab 4 http://www.cypress.com/?rID=39577 Fri, 13 Jul 2012 06:40:43 -0600 Astoria DMB-T/H Storage TV Dongle Reference Design Guide http://www.cypress.com/?rID=37776 ASTORIA_Top
ASTORIA_Bottom



The Cypress West Bridge Astoria and Legend Silicon based DMB-TH TV Dongle Reference Design consists of all files required for the complete design. It has a tuner from ADI, which tunes the RF signal to the Legend Silicon demodulator. This sends the TV signals in MPEG2_TS stream to Cypress West Bridge Astoria, which then sends them to the PC through the USB interface. In the PC, the BDA driver forwards the data from the USB to the Media Player application where it is played. Apart from TV streaming capabilities, the design also has capabilities to interface to removable or embedded media such as SD, MMC, and Managed NAND. The design enumerates as a composite device with two interfaces:

  1. Mass Storage
  2. TV Streaming Device
     
Reference Design Contents:

  1. Schematics in .pdf and .dsn format
  2. Gerber files
  3. Bill of Materials
  4. Firmware Hex & IIC files
  5. Driver Object Code
  6. Reference Design Guide
     
For more information about the design, please contact your local Cypress sales office.

Note: The firmware given with the design is just a Demo firmware. The Driver is not WHQL Certified yet.The process of WHQL Certification is underway and will be updated once it is done.
]]> Thu, 12 Jul 2012 01:30:07 -0600 AN52970 - Windows Hardware Quality Labs (WHQL) Signing Procedure for Customer Modified Cypress USB Driver Files http://www.cypress.com/?rID=36676  

 

Application Note "AN52970 - Windows Hardware Quality Labs (WHQL) Signing Procedure for Customer Modified Cypress USB Driver Files" not available now.

 

Please review knowledge base article in this link to learn about "Windows Hardware Certification Process for Customer Modified Cypress USB Driver Files".

]]> Tue, 10 Jul 2012 01:52:03 -0600 Windows Hardware Certification Process for Customer Modified Cypress USB Driver Files http://www.cypress.com/?rID=65775 Cypress supplies a digitally signed driver with its reference designs and development kits. The signature on the driver files is invalidated when customer-specific information (VID, PID, strings, and so on) are added to the driver files. The following steps allow customers to obtain the ‘Certified for Windows’ logo digital signature by passing Microsoft’s Windows® Hardware Quality Labs (WHQL) testing for customer-modified Cypress USB driver files. More information on the logo programs offered by Microsoft (including cost, debug procedure etc.) is available at http://msdn.microsoft.com/en-us/windows/hardware/gg463010 and http://msdn.microsoft.com/en-us/windows/hardware/gg487530

 

Driver Signing for Windows Hardware Certification

A complete beginning-to-end walkthrough of how to digitally sign drivers is provided by Microsoft and is available at http://www.microsoft.com/whdc/winlogo/drvsign/kmcs_walkthrough.mspx

 

FAQs

Question 1: I get the following error while binding my device to CyUSB.sys in Windows 7/Vista 64-bit environment, “Windows encountered a problem installing the driver software for your device” or usage of CyUSB.sys in Vista 64-bit operating system gives Code 39 error (Code 52 in the case of Windows 7). What do these errors mean? How can they be resolved?

Answer: CyUSB.sys downloaded through our website is an unsigned driver. This error reported while an unsigned driver used in 64-bit operating systems in normal mode. Following are the steps to disable driver signature enforcement in 64-bit operating system:

a) During boot-up press F8.

b) In the list of options that appear select “Disable driver signature enforcement”.

This should resolve the issues.

Note: In the case of Windows Vista 64-bit operating system the error message is “Windows cannot load the device driver for this hardware. The driver may be corrupted or missing. (Code 39)”. In the case of Windows 7 64-bit operating system it is "Windows cannot verify the digital signature for the drivers required for this device. A recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source. (Code 52)".

Question 2: What is the signing procedure when script files are used?

Answer:When script files are used, the Inf file should contain both VID/PID combinations while signing the driver. The procedure for signing the procedure is the same as that for regular drivers. The script file (.spt file) will need to be shipped along with the Inf/Sys files.

]]> Tue, 10 Jul 2012 00:57:27 -0600 AN58986 - NAND Flash Page Reader for NX2LP Based Mass Storage Devices http://www.cypress.com/?rID=49145 Overview

In this application note, a host application is developed in VC# to demonstrate reading and writing to the pages of a NAND Flash interfaced to an NX2LP/NX2LP-Flex device. This can be used to read from and write to Nand flashes interfaces to NX2LP, by specifying physical addresses. The host application is specific to NX2LP/NX2LP-Flex based mass storage devices because it communicates to the device using vendor specific requests. Vendor specific requests issued through the application are implemented in the NX2LP/NX2LP-Flex firmware.
 

]]> Mon, 02 Jul 2012 07:11:40 -0600 CY4615B - Hi-speed USB 2.0-to-ATA/ATAPI Bus-Powered Reference Design (with EZ-USB AT2LP) http://www.cypress.com/?rID=14404 High-Speed USB to ATA (Advanced Technology Attachment)

Develop your mass storage bridge solution in hours, not weeks, using the Cypress EZ-USB AT2LP(TM)! Leveraging our existing mass storage expertise, the EZ-USB AT2LP adds large capacity drive support and ATA interrupt request (IRQ) support, all in an easy-to-use, low-cost configurable device.

Features:

  • Single-chip interface to any ATA/ATAPI or CompactFlash (Microdrives & CF) device
  • Support for ATA-6 specification for large capacity drives
  • Support for up to UDMA mode 4
  • Completely reconfigurable board to support self-powered or bus-powered applications
  • Compatibility with Windows and Mac OS class drivers, Cypress drivers available
  • Tri-state-able output lines
  • Configurable EEPROM

This reference design supports the EZ-USB AT2LP (CY7C68320/CY7C68300B) products from Cypress. It replaces the CY4615A Reference Design Kit.


Hardware Description
 

This reference design kit includes:

  • Evaluation Board with CY7C68320 (EZ-USB AT2LP)
  • ATA cable
  • 40-pin to 44-pin adapter
  • "Y" power adapter cable
  • USB cable
  • CY4615B Release Notes
  • EZ-USB AT2LP Datasheet
  • CD-ROM containing:
    - Hardware design databases for 2 different board layouts
               - Schematics
               - Bill of Materials
               - Gerber files
               - OrCAD files
    - EEPROM programming software
    - Manufacturing software
    - Other technical support documents

Looking for drivers? Check here for:

Windows Driver
Mac OS 9 Driver
Mac OS X Driver
DOS driver: We have EHCI and mass storage support available for DOS.  Please contact your sales representative or field applications engineer to get it.

Documentation for the kit is included with the software download on this page.

]]> Tue, 29 May 2012 23:46:17 -0600 Vendor Command Design Guide for the FX2LP - AN45471 http://www.cypress.com/?rID=34485 Vendor commands are used to issue commands to a device, by which tasks unique to an application are accomplished. This application note demonstrates how you can quickly design USB vendor commands to perform specific features of products. In addition, using the Cypress CyConsole utility to issue vendor commands is also explained.

]]> Tue, 29 May 2012 05:56:50 -0600 CY4611B - USB 2.0 USB to ATA Reference Design http://www.cypress.com/?rID=14406 CY4611B - USB 2.0 USB to ATA Reference Design

Updated to rev 2.5 on 9/1/2005. Now with Cypress's new EZ-USB FX2LP device enabling bus-powered operation and improved support for removable devices.            

This reference design features the new EZ-USB FX2LP(TM) which enables bus-powered mass storage applications that take advantage of the high bandwidth capability of USB 2.0. This design supports ATA (Advanced Technology Attachment) specification modes through UDMA-100 for the highest performance USB mass storage solution available. The General Programmable Interface (GPIF) of the FX2LP allows glueless connection to the attached drive. This design provides all the materials necessary for production with the most flexible, highest-performance solution available.

Supported Interfaces: USB to ATA

  • IDE (Integrated Drive Electronics): 3.5" and 2.5" hard drives, Compact Flash and micro-drives. 
  • ATAPI: CD-ROM/R/RW, DVD-ROM/RAM/RW, ZIP, LS-120, and other ATAPI devices

Key Features

  • Single-chip bus-powered interface to any mass storage device
  • Support for PIO and UDMA modes through UDMA Mode 5 (UDMA-100)
  • High transfer rate that is limited only by USB 2.0 bandwidth
  • Field-upgradable firmware
  • Large internal RAM that allows data buffer and quad-buffer bulk endpoints
  • Support for Windows and Mac OS class drivers
  • Windows 98 driver
  • Shorter development time with complete reference design kit

Looking for drivers?  Check here for:

Hardware Description

The reference design kit includes:

1. EZ-USB FX2LP Mass Storage Reference Design Board
2. USB, UDMA, and Y" power adapter cables
3. CD-ROM - Software

a. Firmware source and object code
b. Manufacturing Tools
c. License Agreement

4. CD-ROM - Documentation

a. Reference design board schematic, BOM
b. USB to ATA Reference Design Errata
c. USB to ATA Reference Design Board Operating Instructions
d. USB to ATA Reference Design Notes
 

AT2LP Datasheet

]]> Mon, 28 May 2012 05:22:41 -0600 Silicon Errata for EZ-USB® FX2LP™ CY7C68013A/14A/15A/16A Rev. B http://www.cypress.com/?rID=14344 Details include errata trigger conditions, available workarounds, and silicon revision applicability. This document in conjunction with the datasheet for this device fully describes the device functionality. Please contact your local Cypress Sales Representative if you have further questions.

]]> Wed, 09 May 2012 03:56:07 -0600 ACM mode of FX2LP http://www.cypress.com/?rID=50829  

It can be put in CDC-ACM mode but you have to write the descriptors accordingly.The Communication Device Class(CDC) is a device level definition and is used by the host to properly identify a communication device that may present several different types of interfaces.The CDC ACM driver exposes the USB device as a virtual modem or a virtual  COM port to the operating system.For more information on the implementaion refer to AN58764:Implementing a Virtual COM Port in FX2LP
]]> Mon, 30 Apr 2012 04:04:39 -0600 SX2's response to SET_INTERFACE request http://www.cypress.com/?rID=50762  

SET_INTERFACE is a standard EP0 request with no data phase. Though SET_INTERFACE is a standard EP0 request it needs to be handled by external master to perform all the changes in Endpoint configuration. So SX2 notifies the external master with the SETUP interrupt.
    
In case of other non-standard EP0 requests with no data stage, external master is notified with the SETUP interrupt, and the external master can accept the packet and complete the handshake phase by writing zero to the byte count register. SX2 waits for the external master to write zero into byte count register before acknowledging it.
 
But unlike the case of non-standard EP0 requests with no data phase, SX2 doesn't wait for external master to write zero into byte count register in the case of SET_INTERFACE. Instead SX2 acknowledges the transfer by itself.    
 
As per the USB protocol, standard EP0 Device requests without a data stage must be completed in 50ms. If it is not responded to within 50ms, the host will reset the device. To avoid this, SX2 is made to 'ACK' the SET_INTERFACE by itself, without waiting for the external master to write zero into the byte count register.
 
So, if the SET_INTERFACE request is followed by another EP0 request, unless the firmware is fast enough to read the SETUP packet of SET_INTERFACE before the host writes into register,0x32, with the SETUP PACKET of the next command, the commands will get mixed up. Either by making firmware fast enough to read the first setup packet before the arrival of the next setup packet, or having the host issue the second command after the first command has been attended to, can help you to read both the setup packets, without mixing them up.
 
]]> Mon, 30 Apr 2012 03:59:17 -0600 Electrical specification of USB interface of FX2LP http://www.cypress.com/?rID=37485 In the FX2LP datasheet it is mentioned that the USB transceiver has been declared to be "USB 2.0-compliant in full- and high-speed modes". This means that the USB transceiver complies with the electrical specifications of USB2.0 specification. The required electrical specification can be found in Table 7-2 and 7-7 of the USB2.0 specification.

 

]]> Tue, 13 Mar 2012 06:47:11 -0600 IBIS model of CY7C6801XA http://www.cypress.com/?rID=35110 For converting IBIS models with .txt extension to .ibs format, the steps are as follows:

 

1)Save the .txt file in to any folder of C drive

2)Now make sure that "Hide Extensions for known file types" option available at Tools Menu->Folder Options->View Tab is unchecked.

3)Now open the .txt file and "Save As" it with .ibs extension, make sure you selected "All Files" option in "Save As Type" mirror.

 

This will result in a .ibs format created for .txt format in same folder.

 

]]> Tue, 13 Mar 2012 06:41:26 -0600 FX2 Header Files http://www.cypress.com/?rID=28690 The Header files can be found in the following location once you have installed the CY3684 development kit contents:  C:\Cypress\Usb\Target\Inc\

 

]]> Tue, 13 Mar 2012 06:38:42 -0600 CY3685 EZ-USB NX2LP(TM) Development Kit http://www.cypress.com/?rID=14322 This development kit is no longer available. This web page has been left in place for informational purposes only.

 

CY3685 EZ-USB NX2LP(TM) Development Kit              

The CY3685 EZ-USB NX2LP(TM) Development Kit is a complete design environment for use in NAND flash-based systems. The combination of hardware and programming utility software provides the designer with complete development and manufacturing support.

 

This development kit is designed to allow scalable testing and evaluation of the Cypress EZ-USB NX2LP NAND Flash Controller device (CY7C68023 and CY7C68024) with different NAND flash devices. The hardware platform is designed to support up to eight single-device NAND flash chips or up to four dual-device NAND flash chips for scalable density testing.


Additionally, Cypress has created a device programming utility to assist in the manufacturing environment. This programming utility allows easy NAND flash configuration during the design and manufacturing process.


Hardware Description

This kit includes the following items:
  • EZ-USB NX2LP DVK Platform Board - a fully-populated development board
  • EZ-USB NX2LP DVK CD-ROM - CD-ROM provides kit documentation, hardware schematics and bills of materials, development tools, and Manufacturing programming tools (see CD-ROM Contents below)
  • USB Cable - USB type A-to-type B cable connects the USB host PC to the DVK board
  • Documentation Packet - Packet contains the welcome letter and selected documentation from the DVK CD-ROM


Software Contents

  • Manufacturing Programming Tool
  • Windows 98 Mass Storage Driver
     
Documentation Contents
  • EZ-USB NX2LP Customer Welcome Letter
  • EZ-USB NX2LP Development Kit User's Guide
  • EZ-USB NX2LP Datasheet
  • EZ-USB NX2LP Programming Utility Installation Guide
  • EZ-USB NX2LP Kit Software License Agreement
]]> Wed, 08 Feb 2012 04:23:44 -0600 Silicon Errata for the EZ-USB FX2, CY7C68013 Product Family http://www.cypress.com/?rID=14342 This document describes the errata for the EZ-USB FX2/CY7C68013. Details include errata trigger conditions, scope of impact, available workarounds, and silicon revision applicability. Compare this document to the device’s data sheet for a complete functional description. Contact your local Cypress Sales Representative if you have questions. 

]]> Fri, 16 Dec 2011 04:04:22 -0600 Finding a Crystal for the FX2 (CY7C68013) / Crystal requirement for FX2 http://www.cypress.com/?rID=33755 FX2 (not FX2LP) requires crystal with the following characteristics:

■ Parallel resonant
■ Fundamental mode
■ Frequency Stability: ±100 ppm
■ 500-uW drive level
■ 20–33 pF (5% tolerance) load capacitors.

The part we use on our development board is the 20 pF version from ECS (ECS-240-20-4). We also place the 30 pF version, ECS-240-30-4.

Please note FX2 is obsolete and the replacement part is FX2LP.

]]> Fri, 09 Dec 2011 05:16:43 -0600 Error correction in USB data transfer in FX2LP http://www.cypress.com/?rID=31674  

The error count reported in ERRCNTLIM register is not a real measure  of error.  Thsi register is provided for internal debug purposes only. There is no intended practical use of this register. It just provides a aprroximate measure of how sound (electrically) the sytem is. The errors could be due to anything: noise, bad packet etc. The register was not intended to be used for any reliable measure of the quality of USB traffic.  This register is not really  designed or intended to be used  for any real applications  or rely on detecting any actual error on the bus.  The registers  were only used for internal testing of the  part as a very weak unreliable measure of the  bus quality.

That being said, besides standard USB CRC error implemented by the SIE as per USB  2.0  spec, the FX2LP does not have its  own error checking  mechanism  or error recovery mechanism on the USB  data. 

]]> Fri, 09 Dec 2011 05:03:13 -0600 IAR Workbench Compiler For FX2LP http://www.cypress.com/?rID=40028 Unfortunately, Cypress does not provide the header files nor support for third party compilers other than Keil. However, IAS provides support for FX2LP as well as the header files for the same. More details regarding this can be found here .
 

]]> Fri, 09 Dec 2011 04:29:35 -0600 Single INF file that supports both device and script in Windows XP 32 and 64 bit for FX1/FX2LP http://www.cypress.com/?rID=39842 Find attached the zip file which contains INF file that support both device and script in Windows XP 32 and 64 bit. It also has the drivers to be used along with the inf file [CYUSBxp32.sys (for WinXP 32 bit) and CYUSBxp64.sys (for WinXP 64 bit)].

Changes needed in the inf for 32 bit Device and Script:

The XXXX and YYYY should be replaced by the device VID and PID in the below line

%VID_XXXX&PID_YYYY.DeviceDesc%=CyUsb.NTx86.5.1, USB\VID_XXXX&PID_YYYY

Similarly the XXXX and YYYY should be replaced by the Script VID and PID in the below line

%VID_XXXX&PID_YYYY.DeviceDesc%=CyFwLoadx86, USB\VID_XXXX&PID_YYYY

Changes needed in the inf for 64 bit Device and Script:

The XXXX and YYYY should be replaced by the device VID and PID in the below line

%VID_XXXX&PID_YYYY.DeviceDesc%=CyUsb.NTamd64.5.1, USB\VID_XXXX&PID_YYYY

Similarly the XXXX and YYYY should be replaced by the Script VID and PID in the below line

%VID_XXXX&PID_YYYY.DeviceDesc%=CyFwLoad, USB\VID_XXXX&PID_YYYY

Also the script name in the INF file has to be changed from “MyDevice.spt” to the respective .spt file name. 

For more information on scripting refer the application note Downloading FX2LP Firmware using CyConsole Script Capabilities - AN50963.

]]> Mon, 05 Dec 2011 06:41:43 -0600 Maximum Transfer Rate of the SX2 Data Bus http://www.cypress.com/?rID=30052 The answer to this question is application specific and is very dependent on the external master's capabilities.
In theory, the host can transfer data at a rate of 53 MBytes/sec. On a system using a PCI card to provide the USB 2.0 interface, the maximum bulk transfer rate is typically 20 Mbytes/sec. For more information on this subject please see the Cypress Application Note, "Measuring Delivered USB 2.0 Bandwidth with an EZ-USB FX2 Development Board." You can download this application note using this link http://www.cypress.com/?rID=12933.
 

]]> Tue, 29 Nov 2011 23:33:20 -0600 Hex, Bix files and the Hex2bix Utility http://www.cypress.com/?rID=26907 Hex files are ASCII representations of binary data (bix). For a discussion of the hex file format see http://www.keil.com/support/docs/1584.htm.

The hex2bix utility is provided to assist in converting a hex formated file to the bix format to create iic images to load in your serial EEPROM. The .IIC files can be downloaded to the EEPROM using the EZ-USB CyConsole or Control Centre utility. The Hex2bix utility tool is present under C:\Cypress\USB\bin once the CY3684 EZ-USB FX2LP Development Kit is completely installed. The hex2bix utility is a DOS program. A detailed description of how to go about using the utility is present in application note  Using the Hex2bix Conversion Utility-AN45197.

]]> Fri, 25 Nov 2011 08:45:19 -0600 Working of EZ Loader USB Firmware Loader http://www.cypress.com/?rID=33391 An USB device with a particular VID/PID can be bound to a specific driver on the host system. This VID/PID combination can also be bound to a driver whose only function is to download firmware to the device. The EZ Loader USB Firmware Loader is used to create one such driver. When you plug in our USB device, the device comes up with a specific VID/PID. This particular VID/PID combination is then bound to the EZ Loader Driver. The EZ Loader driver downloads a firmware loader (loader.c) into the 8051. This loader then loads your firmware into the appropriate code memory location.  After your firmware is loaded, the device would renumerate with the new VID/PID combination that is present in the firmware. This new VID/PID combination can then be bound to a new custom driver.

Please refer the application note EZ LOADER Custom USB Firmware Loader Driver for a detailed explanation on how to create the EZ Loader driver.

]]> Fri, 25 Nov 2011 01:53:14 -0600 Wiring AVCC and AGND in EZ-USB FX2 http://www.cypress.com/?rID=33740 Most of our users connect the AVCC to the VCC and the AGND to the GND. The requirement depends on how much noise is in your digital system. If you are bus powered and have a 3.3 regulator without much local noise on the power you can connect the two. If you are self-powered it still depends on how noisy the power is. The AVCC supplies the power to the bus drivers and to the clock. If power was noisy it would show up as jitter in the USB data. Too much would cause signal quality problems. If you have little or no noise, connecting the digital and analog points together is not a problem.

They are separated only to allow isolations in systems, which have high digital noise. All of the designs we  have seen so far have used a single power source and connect AVcc to Vcc and AGND to GND.

Please go through application note  EZ-USB FX2(TM) PCB Design Recommendations - AN1196 to find a section on power supply decoupling.

]]> Wed, 16 Nov 2011 00:14:10 -0600 Interfacing Samsung MuxOneNand to Cypress USB Controllers - AN60081 http://www.cypress.com/?rID=40975

This application note explains how to interface Cypress EZ-USB® controller to a Samsung MuxOneNand. It includes a complete API library with source code, helps to integrate MuxOneNand support to any Cypress High Speed USB controller based systems.

]]> Thu, 27 Oct 2011 15:23:52 -0600 MoBL-USB TX3LP18 photo http://www.cypress.com/?rID=14815 Cypress's new MoBL-USB™ TX3LP18 high-speed USB 2.0 transceiver is available in the industry's smallest package. The 20-pin WLCSP (Wafer Level Chip Scale Package) package measures only 2.2 mm x 1.8 mm - almost three times smaller than a standard golf ball dimple. In addition to having a footprint 20 percent smaller than any competitive solutions, the device offers ultra-low power consumption. This combination saves board space and prolongs battery-life for a wide range of portable applications such as mobile handsets, PDAs, PMPs, and GPS units.

The MoBL-USB TX3LP18 transceiver is compliant with the ULPI standard and delivers ultra-low power consumption with a 0.5 uA nominal sleep mode. In addition to its small size, the device integrates multiple passive components in order to further reduce boardspace usage and enable smaller end systems. It removes the need for a dedicated 3.3V power supply with a wide input supply voltage range from 3.0 to 5.8V, and features an integrated Phase-Locked Loop (PLL) to supply USB clocking requirements without a dedicated crystal.

Click the link above to download a high-resolution image of the MoBL-USB TX3LP18 transceiver.

]]> Tue, 18 Oct 2011 11:38:58 -0600 To run FX2LP examples in CY3684 kit on my target board which have no external memory http://www.cypress.com/?rID=29930 The examples provided with the development kit are linked to external memory. To run the examples on your target board you will need to recompile the examples after linking them to internal memory using the Keil tools.We recommend placing code at 0x80 and xdata at 0x1000.

]]> Mon, 03 Oct 2011 00:55:08 -0600 Difference between CY7C65640A and CY7C65640 http://www.cypress.com/?rID=39317 The difference between CY7C65640A and CY7C65640 as below:


A) Virtual to Physical Port Mapping:

    PROBLEM DEFINITION :

If downstream ports are not defined contiguously from Port 1 to Port n, a CLEAR_TT_BUFFER request issued by the host may be directed by TetraHub to an incorrect port.

B) Transaction Translator Buffer Mismatch:

    PROBLEM DEFINITION :

Under certain system configurations, a split-transaction request from the host is passed by TetraHub to the device and, when the device responds, the response is stored by TetraHub in the wrong TT buffer. This results in an incorrect response to the associated complete-split request issued by the host.

C) Incorrect Speed Detection of a Full Speed Device After a Port Reset: 

    PROBLEM DEFINITION :

When a Set_Port_Reset command is issued by the host to one of the TetraHub downstream ports that is already enabled, TetraHub may report the port speed incorrectly. Port speed is determined by sampling the downstream port one clock prior to driving the reset. If the port is already enabled and traffic is present, this sampling may produce incorrect results.

Benefit of Change : To eliminate corner case device errata.

For more information, regarding these changes we would like you to refer PCN# 050292.

]]> Mon, 03 Oct 2011 00:22:21 -0600 Addition of new NAND Flash parts to NX2LP-Flex http://www.cypress.com/?rID=37460  NX2LP is currently compatible with SLC NAND Flash of 512 Byte and 2KByte Page size only. The NX2LP Programming Utility needs to know several parameters about the actual NAND chips that are used in the NX2LP memory device. Rather than require entry of these parameters by the user, the utility looks these parameters up in a file called NandParts.xml. NandParts.xml file can be found in the path C:\Program Files\Cypress\NX2LP after the installation of cy3686 NX2LP_flex development kit. If a part is detected that cannot be found in the lookup table, the dialog box which is added as an attachment will pop-up. In order for the NAND parts to function properly with the NX2LP, it is crucial that the parameters in the dialog be accurately set. The Manufacturer ID and the Product ID are values that the NX2LP retrieved from the NAND parts themselves. When the Save button is clicked, the parameters are saved in a second lookup table called OtherParts.xml. This table is always searched first, before NandParts.xml, when the utility tries to identify a part. After the details have been entered and saved, the new NAND Flash part will have been added to NX2LP and will be identified automatically when connected the next time.

]]> Sun, 02 Oct 2011 12:29:24 -0600 Windows Mass Storage Driver v.6.01 http://www.cypress.com/?rID=14453 Windows 98/Me/2000/XP Mass Storage Class Drivers, version 6.01

This driver supports the EZ and ISD families of parts-EZ-USB FX2, EZ-USB FX2LP, EZ-USB AT2 , EZ-USB AT2LP-when used in a mass storage class compatible application. It is a supplement to the following reference design kits:

  • CY4611B
  • CY4615B

Documentation in the ZIP file includes Release Notes and instructions for updating the .inf file with custom vendor and product IDs.

Note: These drivers are for development use. End users looking for the latest drivers for a specific product should contact the drive manufacturer.

]]> Thu, 29 Sep 2011 05:25:50 -0600 Rebooting After On-The-Fly Firmware Updation http://www.cypress.com/?rID=42823 Please be aware that a soft reset cannot reinitialize the I2C boot loader to reload the firmware from EEPROM to the RAM.Only a power-on-rest can reinitialize the I2C controller block and cause the firmware to be reloaded from the EEPROM. Here are a few alternate suggestions we can provide you: 

 
1. Through your host application, make the necessary firmware modifications and update it in your EEPROM through vendor commands. For doing this, you need to have a vendor command defined in your firmware which can write into the interfaced EEPROM. Please refer to the Vend_Ax example included in the CY3684 DVK which contains vendor command routines to read and write to EEPROM. Once this is completed, use the A0 vendor command to reset the cpu by writing into the CPUCS register.Now, update the same firmware in RAM using A0 vendor commands and bring the CPU out of reset by writing into the CPUCS register again.This will cause the CPU to start executing your new firmware. 
 
 
2. Another option you can consider is using an external chip to reset FX2LP after the firmware in EEPROM is updated. The external chip should continuously be signalled from FX2LP(for example. through the toggling of a GPIO). As soon as the updated firmware is downloaded to the EEPROM, FX2LP can stop signalling and the external chip will reset FX2LP. 
]]> Mon, 26 Sep 2011 05:01:51 -0600 Reduction in the Active Power Consumption of FX2LP18 http://www.cypress.com/?rID=42818 1) changing the CPUCS register bits 4 and 3 to reduce the clock speed to 12 MHz or 24 MHz

2) changing IFCONFIG.6 to 0 to set the interface clock speed to 30 MHz if FX2LP18 is sourcing interface clock to GPIF/Slave FIFO interface. 

3) ensuring that all unused I/Os are input only (by changing the OEx bits) 
 
4) make sure VCC_IO is set to 1.8V.
]]> Mon, 26 Sep 2011 04:28:34 -0600 USB 2.0 Certification for FX2LP http://www.cypress.com/?rID=42824 In order to show that a device is USB 2.0 certified, the TID of the device is displayed on the intergrator's list within USBIF. 

FX2LP is USB 2.0 compliant and its TID is 40460272 . It can be found on the usb.org website if you log in as a USB IF member. You need to follow the link to the Compliance program and then to the Integrators List and after logging in , you will see the various Cypress parts listed there. 
]]> Mon, 26 Sep 2011 01:55:41 -0600