Other Parts Discussed in Thread: CC2538
Hello,
I have built a custom board with a CC2538. The schematic closely mirrors the one of the TI CC2538 evaluation module that comes with the TI SmartRF06 evaluation board, except for a few GPIO pins. I also have developed a program using the aforementioned development kit and Contiki OS. It runs fine on the evaluation modules.
When I finished my custom board, I could program it via JTAG to enable the bootloader backdoor. I then could program it via uART using the XDS100v3 from the SmartRF06 EB (jumper J503 not mounted).
Of course, I expect my program will have to be adapted to the new board because it is slightly different from the EM. However, it turns out it crashes long before anything board-specific runs.
There are several instructions that trigger a crash or an infinite loop. The first one is in random_init() when it uses the RF core to seed the random generator :
I have also seen it crashing during the initialization of the network stack, also as RF-related instructions are executed.
So here it is, I have double-checked my design and my code and cannot see what causes the problem, not even whether it is hardware- or software-related. I have several slightly different custom boards and they all display the same behaviour.
Any hints on where I should be looking or what would be the likely cause?
Thanks,
