I have a FEZ Cobra with 3.5" LCD display (as a part of the OEM package) which I am attempting to integrate into a product development. I am facing a problem with the LCD.
My FEZ Cobra runs a program using SPI, HTTP request-response processing, SD card access and a simple UI window. A dispatch timer periodically updates the UI: What happens is that after about 20 - 30 mins of program run, the LCD turns white and the program stops. The module cannot be reached over USB (or ethernet). I noticed that the 3.3V regulator starts overheating. I have to power out the board, wait for few minutes and then on power-up the program runs fine and then after sometime (usually 20 mins or so, but It has also run longer or sometimes the problem appeared in few minutes). I have updated the firmware to 4.1.6 (30.June 2011). Has anyone faced this problem? I have tried both external power supply (6V DC), USB and regulator 5V connected to 5V in, but no luck.
Thanks for any help!