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AN87391 - PSoC® 4 Segment LCD Direct Drive | Cypress Semiconductor

AN87391 - PSoC® 4 Segment LCD Direct Drive

Last Updated: 
May 10, 2017
Version: 
*E
AN87391 demonstrates how easy it is to drive segment LCD glass using the integrated LCD driver in PSoC® 4. PSoC 4 offers multiple LCD drive modes, very low power consumption, and provides a complete user interface and system solution. Using example projects, this application note explains low-power LCD design and a user interface solution that includes CapSense® .
Introduction

Most low-power portable handheld devices such as glucose meters, multimeters, and blood pressure monitors use a segment LCD to display information. Segment LCDs require an external driver to interface with a microcontroller. PSoC 4 implements an integrated low-power LCD driver that can directly drive segment LCD glass.

 

Project

Device

PSoC Creator
Version

Development Kit CY8CKIT-xxx

Compiler

Architecture

Silicon
Revision

 V3.2 or Higher

V3.1
or
Lower

042
DVK

043
DVK

044
DVK

Keil

GCC

MDK

RVDS

Project 1

PSoC 4

Prod

YES

NO

YES

Yes*

Yes*

No

YES

YES

YES

Project 2

PSoC 4

Prod

YES

NO

YES

Yes*

Yes*

No

YES

YES

YES

Project 3

PSoC 4

Prod

YES

NO

YES

No

No

No

YES

YES

YES

Project 4

PSoC 4

Prod

YES

NO

No

Yes

No

No

YES

YES

YES

*The project can be easily adapted to this DVK. The project’s default settings may not be compatible with your device or kit, and you may need to change your project settings.

Translated documents are for reference only. We recommend that you refer to the English-language version of a document if you are engaged in development of a design.