Hi,
I am trying to use P3.0, P3.1, P3.2 for PWM on MSP432. I am using the demo example and change the output pins. My config is below. What am I missing?
/* Port mapper configuration register */
const uint8_t port_mapping[] =
{
//Port P3:
PM_TA0CCR1A, PM_TA0CCR2A, PM_TA0CCR3A, PM_NONE, PM_NONE, PM_NONE, PM_NONE, PM_NONE
//PM_TA0CCR1A, PM_TA0CCR2A, PM_TA0CCR3A, PM_NONE, PM_TA1CCR1A, PM_NONE, PM_NONE, PM_NONE
};
/* GPIO Setup for Pins 3.0-3.2 */
MAP_PMAP_configurePorts((const uint8_t *) port_mapping, PMAP_P3MAP, 1,
PMAP_DISABLE_RECONFIGURATION);
MAP_GPIO_setAsPeripheralModuleFunctionOutputPin(GPIO_PORT_P3,
GPIO_PIN0 | GPIO_PIN1 | GPIO_PIN2, GPIO_PRIMARY_MODULE_FUNCTION);
/* Configure TimerA0 without Driverlib (CMSIS style register access) */
TIMER_A0->CCR[0] = PWM_PERIOD;
TIMER_A0->CCTL[1] = TIMER_A_CCTLN_OUTMOD_7; // CCR1 reset/set
TIMER_A0->CCTL[2] = TIMER_A_CCTLN_OUTMOD_7; // CCR2 reset/set
TIMER_A0->CCTL[3] = TIMER_A_CCTLN_OUTMOD_7; // CCR3 reset/set
TIMER_A0->CTL = TIMER_A_CTL_SSEL__SMCLK | TIMER_A_CTL_MC__UP | TIMER_A_CTL_CLR; // SMCLK, up mode, clear TAR
//set duty cycle
TIMER_A0->CCR[1] = (PWM_PERIOD * 200/255); // CCR1 PWM duty cycle
TIMER_A0->CCR[2] = (PWM_PERIOD * 200)/255; // CCR2 PWM duty cycle
TIMER_A0->CCR[3] = (PWM_PERIOD * 0)/255; // CCR3 PWM duty cycle
