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.
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Device |
PSoC Creator |
Development Kit CY8CKIT-xxx |
Compiler |
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Architecture |
Silicon |
V3.2 or Higher |
V3.1 |
042 |
043 |
044 |
Keil |
GCC |
MDK |
RVDS |
|
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Project |
Prod |
YES |
NO |
YES |
Yes* |
Yes* |
No |
YES |
YES |
YES |
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|
Project |
Prod |
YES |
NO |
YES |
Yes* |
Yes* |
No |
YES |
YES |
YES |
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|
Project |
Prod |
YES |
NO |
YES |
No |
No |
No |
YES |
YES |
YES |
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|
Project |
Prod |
YES |
NO |
No |
Yes |
No |
No |
YES |
YES |
YES |
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*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.
