6 years, 8 months ago.

Another White Screen

Hello Firstly I would like to thank you for creating this library for the RA8875, I have high hopes for what I can do with it in the future, however before that can happen I will need to solve this problem.

Upon power up I am met with a white screen and nothing else, I have two screens which are both setup for 4 wire SPI, one is 5V and the other is 3.3 V, both are 4.3" WQVGA.

I have tried several of the example programs you have made available with the same result for each one, my own attempts at writing code have been equally unsuccessful, the SPI pins on the LPC1768 I am using also appear to be working as it can communicate with the LCD on the mbed application board through the same pins (p5, p6, p7, p12). All solder blobs appear correct.

I have noticed through probing with an oscilloscope that there is no data being transmitted on any of the pins for both boards, all 4 pins are held high at 3.3V.

I have exhausted all paths I can think of right now, if you have any suggestions they would be much appreciated.

Ryan

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