Dear Sir/Madam,
We have chosen RZG2M processor for our panel PC application and from support of our local distributor I have received Hihope RZG2M development board.
Also we are totally new to Linux development environment, so far we used IDE based on windows platform for software development. So from the start we had to face few difficulty in building Linux CIP package and booting the board via SD card. After booting successfully executed HELLO WORLD program.
Next I planned to drive a GPIO connected to LED on board. First tried using shell scrip and tried the "export" command got error message "RESOURCE BUSY". Later got to know these LEDs are already used by processor during bootup (All 4 LEDs ON and OFF during Bootup) and also got to know it is in DEVICE TREE FILE.
Kindly help me locate the DEVICE TREE FILE and HOW TO MODIFY the FILE FOR MY CUSTOM APPLICATION. So far I have only scratched the surface, I have long way to go. Please provide you guidance.
