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imx7d EPDC pin mux issue

Question asked by Vikrant A P on Apr 7, 2019
Latest reply on Apr 8, 2019 by igorpadykov


I have attached an image of MSO readings of EPDC SDDO for screen flash (black -> white -> black -> white).



I am using Eink panel with 16-bit SDDO width with imx7dsabre board, according to an operation of EPDC black and white screen 16-bit data must be 0x5555 and 0xAAAA respectively.

I would like to know are my EPDC pin number 7,12 and 14 being used (or muxed) by some other feature in imx7d? If yes then kindly suggest me how to assign it for EPDC only. I have already made changes in the device tree for the EPDC feature.