Hello,
Brian Neltner wrote:
> Very oddly, the code runs when I compile it with -O3, but not with any
> other optimization level.
>> This works:
>>
>> int main(void) {
>> uint8_t i;
>> for(i=1;i<0xFF;i++) asm volatile("nop/n/t");
>> PORTA=0x01;
>> while(1);
>> }
You are using /n and /t instead of \n \t (backslash-slash). Anyway I
don't think this is the problem in your case. Could you please give us
the avr-gcc command with all parameters and compiler flags you use to
compile the code.
Which target device are you using? Have you already took a look into the
dissembled code (using avr-objdump)? May that will give you some hints.
BR,
Josef
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