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Part Number: MSP432P401R
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
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