Tool/software: Code Composer Studio
I have a PCB that (unfortunately) uses a different pinout to the ControlCard and I'm tasked with writing code that runs on it. I'm looking at various examples and have some of them running. A common issue I run into is to adapt the pins used in the example programs. Today I tried to adapt and run the example cpu_timer_c28.c program. The ONLY change I'm trying to make is that GPIO29 is my output pin instead of GPIO70. It doesn't work.
I changed lines 52-55 as follows
InitGpio(); // Skipped for this example
EALLOW;
GpioG1CtrlRegs.GPADIR.bit.GPIO29 = 1; //set PE5_GPIO29 as output
EDIS;
And then changed the code in the timer0 interrupt as follows
__interrupt void cpu_timer0_isr(void)
{
CpuTimer0.InterruptCount++;
//Toggle pin GPIO29 for visual confirmation of timer operation - NB 'GPADAT' does NOT refer to port A
if(GpioG1DataRegs.GPADAT.bit.GPIO29 == 0) {
GpioG1DataRegs.GPASET.bit.GPIO29 = 1;
}else{
GpioG1DataRegs.GPACLEAR.bit.GPIO29 = 1;
}
// Acknowledge this interrupt to receive more interrupts from group 1
PieCtrlRegs.PIEACK.all = PIEACK_GROUP1;
}
My LED connected to GPIO29 does nothing and I see that pin at 0 all the time. What am I doing wrong?
