Tagged Questions

3
votes
1answer
177 views

Best way to diagnose embedded computer in field problems?

I'll soon be deploying a new embedded system. I have a separate serial port that can connect to a diagnostic program. I also have two LEDs, one I flash to indicate the OS is running, the other that ...
6
votes
2answers
492 views

Good tools or methods for understanding structure of bootloader?

I recently figured out the cause of a nasty bug I've been working on with an Atmel AT91SAM9G20 SBC running U-boot, an open source bootloader. The core of the problem was that U-boot expected the ...
7
votes
3answers
407 views

(Updated) Strange reset behavior with ARM9 processor

I'm working on debugging a boot problem with an Atmel AT91SAM9G20 board. Everything goes great for the first 700 ms or so. It seems that about 700 ms after reset, the processor freezes. What's curious ...