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AN52927 - PSoC® 3 and PSoC 5LP - Segment LCD Direct Drive | Cypress Semiconductor

AN52927 - PSoC® 3 and PSoC 5LP - Segment LCD Direct Drive

Last Updated: 
Dec 14, 2017
Version: 
*I

AN52927 demonstrates how easy it is to drive a segment LCD glass using the integrated LCD driver in PSoC 3 and PSoC 5LP. This application note gives a brief introduction to segment LCD drive features and provides a step-bystep procedure to design Segment LCD applications using the PSoC Creator tool.

PSoC3 device is equipped with segment LCD driver which allows segment LCD glass to be directly driven without using any external components.

Segment LCD glass interface to PSoC3

The driver supports LCDs upto 16 commons and can drive upto 768 segments. PSoC Creator tool provides Segment LCD component which simplifies the task of handling different types of segment LCD features such as 7-segment, 14-segment, 16-segment, Dot-Matrix and special symbols. This application note explains how to use Segment LCD component for a given LCD specifications.

This application note only covers segment LCD drive capability of PSoC3. Another type of LCDs- the graphic LCDs can also be interfaced to PSoC3. For details of interfacing graphic LCDs to PSoC3, click the following links-

http://www.cypress.com/?rID=48850

http://www.cypress.com/?rID=48854

 

Demo Video: PSoC3 Segment LCD Direct Drive Demo

This video explains how to create projects with Segment LCD Component of PSoC3.

 

 

 

 

 

The following table indicates the PSoC devices, PSoC Creator versions, compilers, and development kits that will work with this application note project:

Project
Device
PSoC Creator
Version
Development Kit
CY8CKIT-xxx
Compiler
Architecture
Silicon
Revision
V3.0 SP1
or higher
V2.1 SP1/
V2.1
001
DVK
030/050
DVK
003/014
FTK
Keil
GCC
RVDS
MDK

AN52927.zip

Prod
YES
NO
YES
YES*
NO
YES
N/A
N/A
N/A
Prod
YES
NO
YES
YES*
NO
N/A
YES
YES
YES
AN52927_Archive.zip
ES3, Prod
NO
YES
YES
YES*
NO
YES
N/A
N/A
N/A

*Refer to Migrating CY8CKIT-001 DVK project to CY8CKIT 030/ 050

Projects associated with this application note can be downloaded from the ‘Related Files’ section below. For your convenience, we have provided projects that are compatible with the two most recent versions of PSoC Creator:

  • AN52927.zip is used with PSoC Creator 3.0 SP1
  • AN52927_Archive.zip is used with PSoC Creator 2.1 SP1/2.1

The project’s default settings may not be compatible with your device or kit, and you may need to change your project settings. For more information, see: