Hi Guys,
How do you debug the hardware if the sd card slot is OK and the ROM code is loading the MLO from sd card (assume I’m using vfat sdcard and the MLO/uboot.bin are available on the card)?. I have this scenario where I have no idea if it’s working or not.
Any suggestions?
Thanks,
John
On an xM? I have a cheap USB RS232 dongle. I plug that into the board,
and use a terminal emulator to watch the boot process. The demo images
will have a getty on the serial port if everything boots properly.
u-boot will also interact with the serial port as well.
How do you debug MLO (x-loader) if you did not see any output in your serial console when you power up your board?.
If there is no output, then the board is not communicating with the host. At the very least you would see “- 40” or something similar.
Remember to use a null modem serial cable for a rev C board, and a straight serial cable (or USB adapter cable) for an xM.