int main(void){
Output_Init();
// ST7735_XYplotInit("Temp", 0, 100, 0, 100);
PLL_Init(Bus80MHz); // 80 MHz
SYSCTL_RCGCGPIO_R |= 0x20; // activate port F
ADC0_InitSWTriggerSeq3_Ch9(); // allow time to finish activating
Timer0A_Init100HzInt(); // set up Timer0A for 100 Hz interrupts
GPIO_PORTF_DIR_R |= 0x06; // make PF2, PF1 out (built-in LED)
GPIO_PORTF_AFSEL_R &= ~0x06; // disable alt funct on PF2, PF1
GPIO_PORTF_DEN_R |= 0x06; // enable digital I/O on PF2, PF1
// configure PF2 as GPIO
GPIO_PORTF_PCTL_R = (GPIO_PORTF_PCTL_R&0xFFFFF00F)+0x00000000;
GPIO_PORTF_AMSEL_R = 0; // disable analog functionality on PF
PF2 = 0; // turn off LED
EnableInterrupts();
ST7735_SetCursor(6,0);
printf("C");
ST7735_SetCursor(13,0);
printf("ADC");
while(1){
PF1 ^= 0x02; // toggles when running in main
temperature = adcToTemp(ADCvalue);
ST7735_SetCursor(0,0);
ST7735_sDecOut2(temperature);
ST7735_SetCursor(9,0);
ST7735_OutUDec(ADCvalue);
}
}
//debug code
int main(void){
PLL_Init(Bus80MHz); // bus clock at 50 MHz
Output_Init();
SYSCTL_RCGCGPIO_R |= 0x20; // activate port F
//ADC0_InitTimer0ATriggerSeq3(2, F30HZ); // ADC channel 0, 1000 Hz sampling
ADC0_InitTimer0ATriggerSeq3PD3(F30HZ);
//ADC0_InitSWTriggerSeq3_Ch9();
while((SYSCTL_PRGPIO_R&0x0020) == 0){};// ready?
GPIO_PORTF_DIR_R |= 0x02; // make PF1 output (PF1 built-in LEDs)
GPIO_PORTF_AFSEL_R &= ~0x02; // disable alt funct on PF1
GPIO_PORTF_DEN_R |= 0x02; // enable digital I/O on PF1
// configure PF1 as GPIO
GPIO_PORTF_PCTL_R = (GPIO_PORTF_PCTL_R&0xFFFFF0FF)+0x00000000;
GPIO_PORTF_AMSEL_R = 0; // disable analog functionality on PF
EnableInterrupts();
plotInit();
while(1){
GPIO_PORTF_DATA_R ^= 0x02; // toggle LED
//ADCvalue = ADC0_InSeq3();
temperature = adcToTemp(ADCvalue + offset);
plotPoint();
ST7735_SetCursor(1,2);
ST7735_sDecOut2(temperature);
ST7735_SetCursor(2,1);
ST7735_OutUDec(ADCvalue + offset);
}
}
void plotInit(void){
ST7735_SetCursor(0,0);
ST7735_OutString("Temp");
ST7735_PlotClear(1000,4000); // range from 0 to 4095
ST7735_SetCursor(0,1);
ST7735_OutString("N=");
ST7735_SetCursor(0,2);
ST7735_OutString("T=");
ST7735_sDecOut2(0000);
ST7735_SetCursor(7,2);
ST7735_OutString("C");
}
void ST7735_InitTemperatureGraph()
{
ST7735_SetCursor(0,0);
ST7735_OutString("Temperature Data");
ST7735_PlotClear(1000,4000); // range from 0 to 4095
ST7735_SetCursor(0,1);
ST7735_OutString("N=");
ST7735_SetCursor(0,2);
ST7735_OutString("T= ");
ST7735_sDecOut2(2500);
ST7735_OutString(" C");
}
void ST7735_UpdateTemperatureGraph(uint32_t numSamples, uint16_t adcValue)
{
uint16_t temperature = getTemp(adcValue);
// DEBUG
// Magnify the plot to see the noise distribution better
// ST7735_PlotPoint((temperature - 2200)*15);
ST7735_PlotPoint(temperature); // Measured temperature
if((numSamples&(N-1))==0){ // fs sampling, fs/N samples plotted per second
ST7735_PlotNextErase(); // overwrites N points on same line
}
if((numSamples%FS)==0){ // fs sampling, 1 Hz display of numerical data
ST7735_SetCursor(3,1);
ST7735_OutUDec(adcValue); // 0 to 4095
ST7735_OutString(" "); // clear previous number
ST7735_SetCursor(3,2);
ST7735_sDecOut2(temperature); // 0.01 C
}
}
