I have been using the default 6 in screen with the Ebook daughter card and an IMX6 SOLOLITE. I have been able to successfully use the 6 in screen but am trying to connect a different size screen. Luckily both screens use a JST connector 39FXL-RSM1-S-H-TB. The list of pins and signals on the E-paper screen and daughter card output are almost identical with a few that are in a different order. For this reason it does not work to simply connect the other screen. I was wondering if it was possible to change the pin configurations on the daughter card to match what the E-Paper screen accepts? For example defining that a VDD, digital power supply driver, be a pin 2 instead of a pin 5 etc. I have attached the data sheet for the daughter card. The relevant component is on page 8.
No, it is not possible to reassign the contacts of the EPD connector since they are hardwired on the board. You have to make a cross-connector board to match the i.MX6SL EVK EPDC connector on one side and your EPD add-on board's connector on the another.
Have a great day,