UCD3138064: How to configure interrupt handler for UCD3138064

Hi,


Here it is an example to define the interrupt source.


void init_interrupts(void)
{
TimerRegs.T16PWM2CMP0DAT.all = INTERRUPT_TIMER_VAL; //Threshold to send the pwm low. Approx 10[0]KHz. by spec.64ns clock period
TimerRegs.T16PWM2CMP1DAT.all = 0xffff; //Threshold to send the pwm high
TimerRegs.T16PWM2CMPCTRL.all = 2; //Enables compare 0 (reset) interrupt
TimerRegs.T16PWM2CNTCTRL.all = 0x00c; //PWM counter is running & enables PWM counter reset by compare action on compare 0

disable_interrupt();
disable_fast_interrupt();

write_reqmask(CIMINT_ALL_PWM2_COMP| CIMINT_ALL_TMR_CAPT0 | CIMINT_ALL_FAULT_MUX); //enable pwm2cmp and DPWM0 interrupt(End of 16th period)(int-priority29)
write_firqpr (CIMINT_ALL_TMR_CAPT0 | CIMINT_ALL_FAULT_MUX); //DPWM0 interrupt(End of 16th period) is mapped to FIQ

enable_fast_interrupt();
enable_interrupt();
}

ISR is called when the interrupt is triggered.

#pragma INTERRUPT(fast_interrupt,FIQ)
void fast_interrupt(void)
{
.......
}

If you have Ti EVM source code, you can find similar code.

Regards,
Sean