Hello all,
I am trying to write an TI-RTOS app for the MSP432p401R launchpad and It seems whenever I enable the ADC14 interupts my tasks stop being called at all. I am wondering what I am doing wrong.
int main(void)
{
/* Call board init functions. */
Board_initGeneral();
Board_initGPIO();
// Board_initI2C();
// Board_initSDSPI();
// Board_initSPI();
// Board_initUART();
// Board_initWatchdog();
// Board_initWiFi();
/* Turn on user LED */
GPIO_write(Board_LED0, Board_LED_ON);
/* Halting the Watchdog */
MAP_WDT_A_holdTimer();
/* Initializing Variables */
curADCResult = 0;
/* Setting DCO to 48MHz */
MAP_PCM_setPowerState(PCM_AM_LDO_VCORE1);
MAP_CS_setDCOCenteredFrequency(CS_DCO_FREQUENCY_48);
/* Enabling the FPU for floating point operation */
MAP_FPU_enableModule();
MAP_FPU_enableLazyStacking();
/* Initializing ADC (MCLK/1/4) */
MAP_ADC14_enableModule();
MAP_ADC14_initModule(ADC_CLOCKSOURCE_MCLK, ADC_PREDIVIDER_1, ADC_DIVIDER_4,
0);
/* Configuring GPIOs (5.5 A0) */
MAP_GPIO_setAsPeripheralModuleFunctionInputPin(GPIO_PORT_P5, GPIO_PIN5,
GPIO_TERTIARY_MODULE_FUNCTION);
/* Configuring ADC Memory */
MAP_ADC14_configureSingleSampleMode(ADC_MEM0, true);
MAP_ADC14_configureConversionMemory(ADC_MEM0, ADC_VREFPOS_AVCC_VREFNEG_VSS,
ADC_INPUT_A0, false);
/* Configuring Sample Timer */
MAP_ADC14_enableSampleTimer(ADC_MANUAL_ITERATION);
/* Enabling/Toggling Conversion */
MAP_ADC14_enableConversion();
MAP_ADC14_toggleConversionTrigger();
/* Enabling interrupts*/
MAP_ADC14_enableInterrupt(ADC_INT0);
MAP_Interrupt_enableInterrupt(INT_ADC14);
MAP_Interrupt_enableMaster();
/* while (1){
*
MAP_PCM_gotoLPM0();
};*/
/* Start BIOS */
BIOS_start();
return (0);
}
void ADCClockFXN(){};
void adc_isr(void)
{
uint64_t status = MAP_ADC14_getEnabledInterruptStatus();
MAP_ADC14_clearInterruptFlag(status);
Semaphore_post(sem);
if (ADC_INT0 & status)
{
curADCResult = MAP_ADC14_getResult(ADC_MEM0);
normalizedADCRes = (curADCResult * 3.3) / 16384;
MAP_ADC14_toggleConversionTrigger();
}
}
void ADCTaskFxn(){
uint8_t i;
fcomplex b,c;
float auc=0.0;
while(1){
uint16_t currentSample = 0;
Semaphore_pend(sem,BIOS_WAIT_FOREVER);
while(currentSample < SAMPLECOUNT) {
//Sleep IDLE mode
Task_sleep(1);
// Trigger ADC sampl
and so on.
I have created all of the tasks and interrupts with the Gui.
Most of the above code was from a non-RTOS example that I am trying to port into an RTOS program. So I might be trying do do the impossible.
What I did was import the ADC14_single_sample_repeat example. I then created an empty RTOS project. I then copied the code from the ADC14 sample into the RTOS project. I created the tasks for my code and got all of it to compile. The ADC ISR works greate. But the tasks never get called.
These lines:
/* Enabling interrupts*/
MAP_ADC14_enableInterrupt(ADC_INT0);
MAP_Interrupt_enableInterrupt(INT_ADC14);
MAP_Interrupt_enableMaster();
seem to be the culprit, particularly MAP_Interrupt_enableInterrupt(INT_ADC14);
If I comment that line the tasks run but the adc isr doesn't. If I put that line in, the adc isr runs but the tasks don't.
Thanks for any help.
JP
