Greetings, I agree it looks very much like this. But... - I have the interrupts disabled before the call to the subroutine located in the bls section - the stack pointer, right before the call, still points to the top of the internal ram (0x10ff on the mega644), while the _end symbol is very low (0x1b7), which leaves almost all of ram to the stack.
And once again, if I leave this routine in the .text section, the unexpected resets suddenly disappear. Pat -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Joerg Wunsch Sent: August 22, 2007 5:38 PM To: [email protected] Cc: Patrick Mahoney Subject: Re: [avr-libc-dev] Problem writing to flash - atmega644 As Patrick Mahoney wrote: > It might not be an actual reset because all bits in the MCUSR register > are cleared. So it could be a jmp to address 0, but it doesn't make more > sense... Again, the sims run perfectly... Smells like either a problem with the stack initialization, or you've enabled an interrupt source that has no ISR assigned. -- cheers, J"org .-.-. --... ...-- -.. . DL8DTL http://www.sax.de/~joerg/ NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-) _______________________________________________ AVR-libc-dev mailing list [email protected] http://lists.nongnu.org/mailman/listinfo/avr-libc-dev _______________________________________________ AVR-libc-dev mailing list [email protected] http://lists.nongnu.org/mailman/listinfo/avr-libc-dev
