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PSoC™ 4

Level 2
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Level 2


I am using a CY8C4126AXI-S445 and want to drive an LCD with 4 COMs and 18 SEGs.

It seems to work with a PWM driving mode and a 1/4 Bias in High Speed mode.

To save battery I want to use Digital correlation mode as the current is supposed to be much lower in this mode.

But with digital correlation all the segments on the LCD are always on. I can't switch them off using LCD_WritePixel or similar functions.

What can I do to make it work?

PS: I already found this thread https://community.cypress.com/t5/PSoC-4-MCU/Segment-LCD-Drive-in-Low-Speed-Mode-on-PSoC4100S/m-p/175... but it didn't solve my problem.

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