Part Number: MSP432P401V
I created code to sample multiple channels continuously. I triggered it with MAP_ADC14_toggleConversionTrigger(). This code was based on an example in the C:\ti\simplelink_msp432p4_sdk_3_20_00_06\examples\nortos\MSP_EXP432P401R\driverlib. It works.
Now, I want to trigger the ADC from Timer_A0. Once again, I used an example project and read the RM. I changed only two lines in my working ADC code as follows:
bstatus = MAP_ADC14_setSampleHoldTrigger(ADC_TRIGGER_ADCSC, false);
to
bstatus = MAP_ADC14_setSampleHoldTrigger(ADC_TRIGGER_SOURCE1, false);
and
MAP_ADC14_toggleConversionTrigger();
to
TMR_StartTimer( ADC_TIMER );
The timer is configured per an example project as follows:
const Timer_A_UpModeConfig upModeConfig =
{
TIMER_A_CLOCKSOURCE_SMCLK,
TIMER_A_CLOCKSOURCE_DIVIDER_64, // 46875Hz
46875,
TIMER_A_TAIE_INTERRUPT_DISABLE,
TIMER_A_CCIE_CCR0_INTERRUPT_DISABLE,
TIMER_A_DO_CLEAR
};
/* Timer_A Compare Configuration Parameter */
const Timer_A_CompareModeConfig compareConfig =
{
TIMER_A_CAPTURECOMPARE_REGISTER_1,
TIMER_A_CAPTURECOMPARE_INTERRUPT_DISABLE,
TIMER_A_OUTPUTMODE_SET_RESET,
46875
};
extern LUNAR_ERROR_T TMR_Init( void )
{
(void)MAP_Timer_A_configureUpMode(TIMER_A0_BASE, &upModeConfig);
(void)MAP_Timer_A_initCompare (TIMER_A0_BASE, &compareConfig);
return ERR_NONE;
}
The timer does not trigger the ADC. I am expecting it to trigger every 1s. I never enter "void ADC14_IRQHandler(void)". I tried enabling a timer interrupt and adding the ISR, but I never got there either. Note that master interrupts are enabled early in Main().
What am I missing?
