Hey guys, I am debugging some code on a AT91SAM7A3 that shows an odd behaviour: as long as it is connected by JTAG and run via gdb, everything works fine. If I do a power-on reset without running gdb, it boots up fine, but I can make it crash by sending some characters on a USART port (what works fine while debugging). The crash is 100% repeatable. That puts me in a bad position because it's kind of hard to hunt down a bug that only shows up when the debugger is not connected. It's a bare-metal system, the code is C and C++, the compiler is gcc/g++. Has anyone experienced anything like this before? best regards, Jan
Have a look at your asynchronous buffer management? Maybe your debug environment slows the system down a little so that no overflow will occur.
Another thing is to check is if the program uses semihosting.
Thanks for the hints, I will check both possibilities and post it here once I figured out the problem. regards Jan
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