Tool/software: TI C/C++ Compiler
Hello,
Again I have a really weird behavior of the f28062. When I have the following while loop
while(1){
GpioDataRegs.GPADAT.bit.GPIO6 = 1; GpioDataRegs.GPADAT.bit.GPIO7 = 0;
GpioDataRegs.GPADAT.bit.GPIO6 = 0; GpioDataRegs.GPADAT.bit.GPIO7 = 1;
GpioDataRegs.GPADAT.bit.GPIO6 = 0; GpioDataRegs.GPADAT.bit.GPIO7 = 0;
}
at the end of the loop I would expect GPIO7 to be LOW, but it isn`t. At the end it is still HIGH (No I didn`t set the Breakpoint to the wrong location, the breakpoint is in the first line)
So the code stops at the first line, I hit the "Run" button, the debugger stops at the first line again and GPIO7 is still HIGH. I ca see it in the registers and also on the oscilloscope.
BUT if I step through the code line by line it is working fine.. Why?
It is not only this, if I don`t set any breakpoints and let the code run, I can see that while GPIO6 is toggleing like 1000000 Times, GPIO7 is always HIGH and only goes LOW once in a while.
When I write this code
while(1){
GpioDataRegs.GPADAT.bit.GPIO7 = 1;
GpioDataRegs.GPADAT.bit.GPIO7 = 0;
}
GPIO7 toggles like it should.
So I thought, ok then I will try a different way by using GPATOGGLE. Here is the code:
while(1){ GpioDataRegs.GPATOGGLE.all = 6; }
Here I would expect GPIO6 to toggle between HIGH an LOW but it is doing nothing. The toggle register is 0 and the corresponding bit in GPADAT also stays on 0.
What am I doing wrong?
EDIT
Optimizations are turned off completely
