88 lines
2.2 KiB
C
88 lines
2.2 KiB
C
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/* ADCTimertriggerTestmain.c
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* Jonathan Valvano
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* May 23, 2025
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* Derived from adc12_single_conversion_vref_internal_LP_MSPM0G3507_nortos_ticlang
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* adc12_single_conversion_LP_MSPM0G3507_nortos_ticlang
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* adc12_triggered_by_timer_event_LP_MSPM0G3507_nortos_ticlang
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*/
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// ****note to students****
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// the data sheet says the ADC does not work when clock is 80 MHz
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// however, the ADC seems to work on my boards at 80 MHz
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// I suggest you try 80MHz, but if it doesn't work, switch to 40MHz
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#include <ti/devices/msp/msp.h>
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#include "../inc/LaunchPad.h"
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#include "../inc/Clock.h"
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#include "../RTOS_Labs_common/ADCTimer.h"
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volatile uint32_t Data0,Data1,Flag0,Flag1,Timems0,TimeSec0,Timems1,TimeSec1;
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void ADC0_IRQHandler(void){ // 1000 Hz
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ADC0->ULLMEM.CPU_INT.ICLR = 0x00000100;
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Data0 = ADC0->ULLMEM.MEMRES[0];
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Flag0 = 1;
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Timems0++;
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if((Timems0%1000)==0){
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TimeSec0++;
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GPIOB->DOUT31_0 ^= RED;
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}
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ADC0->ULLMEM.CTL0 |= 1; // restart
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}
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uint16_t volt0,volt1; // voltage in mV
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int main1(void){
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__disable_irq();
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Clock_Init80MHz(0);
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Timems0 = TimeSec0 = 0;
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Flag0 = 0;
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LaunchPad_Init();
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ADC0_TimerG0_Init(7,ADCVREF_VDDA,5000,8,1);
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__enable_irq();
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while(1){ /* toggle on sample */
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if(Flag0){
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Flag0 = 0;
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volt0 = (Data0*3300)>>12;
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GPIOA->DOUT31_0 ^= RED1;
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}
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}
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}
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void ADC1_IRQHandler(void){ // 100 Hz
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ADC1->ULLMEM.CPU_INT.ICLR = 0x00000100;
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Data1 = ADC1->ULLMEM.MEMRES[0];
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Flag1 = 1;
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Timems1++;
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if((Timems1%100)==0){
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TimeSec1++;
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GPIOB->DOUT31_0 ^= BLUE;
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}
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ADC1->ULLMEM.CTL0 |= 1; // restart
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}
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int main(void){
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__disable_irq();
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Clock_Init80MHz(0);
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Timems0 = TimeSec0 = 0;
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Flag0 = 0;
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Timems1 = TimeSec1 = 0;
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Flag1 = 0;
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LaunchPad_Init();
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ADC0_TimerG0_Init(7,ADCVREF_VDDA,5000,8,1);
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//ADC1 channel 5, PB18, slidepot
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ADC1_TimerG8_Init(5,ADCVREF_VDDA,50000,8,0);
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__enable_irq();
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while(1){ /* toggle on sample */
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if(Flag0){
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Flag0 = 0;
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volt0 = (Data0*3300)>>12;
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GPIOA->DOUT31_0 ^= RED1;
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}
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if(Flag1){
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Flag1 = 0;
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volt1 = (Data1*3300)>>12;
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GPIOA->DOUT31_0 ^= RED1;
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}
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}
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}
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