void plotPoint(void){
ST7735_PlotPoint(temperature); // Measured temperature
if((j&(N-1))==0){ // fs sampling, fs/N samples plotted per second
ST7735_PlotNextErase(); // overwrites N points on same line
}
j++; // counts the number of samples
}
int main(void){
char* lab9greeting = "Welcome to Lab 9!";
int temp;
// int Temperature = 100;
// DisableInterrupts();
// PLL_Init(Bus80MHz);
// //ST7735_InitR(INITR_REDTAB);
// Output_Init(); // UART0 only used for debugging
// ST7735_Output_Init();
// ADC0_InitSWTriggerSeq3_Ch9(); //initialize the ADC
// Timer0A_Init20HzInt(); //initialize the timer
// ST7735_DrawString(0,0, lab9greeting, ST7735_WHITE);
// EnableInterrupts();
PLL_Init(Bus80MHz); // 80 MHz
SYSCTL_RCGCGPIO_R |= 0x20; // activate port F
ADC0_InitSWTriggerSeq3_Ch9(); // allow time to finish activating
Timer0A_Init20HzInt(); // 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
ST7735_Output_Init();
ST7735_DrawString(0,0, lab9greeting, ST7735_WHITE);
//Init_Plot();
//ST7735_SetCursor(0,0); ST7735_OutString("Lab 9");
ST7735_PlotClear(1000,4000); // range from 0 to 4095
ST7735_SetCursor(0,1); ST7735_OutString("N=");
ST7735_SetCursor(0,2); ST7735_OutString("T="); //ST7735_DecOut2(2500);
ST7735_OutString(" C");
EnableInterrupts();
while(1){
ST7735_SetCursor(3,1); ST7735_OutUDec(ADCvalue); // 0 to 4095
if(refresh){
refresh = 0;
samples++;
ST7735_PlotPoint(ADCvalue); // Measured temperature
if((samples&(N-1))==0){ // fs sampling, fs/N samples plotted per second
ST7735_PlotNextErase(); // overwrites N points on same line
}
if((samples%fs)==0){ // fs sampling, 1 Hz display of numerical data
//do conversion here, set it equal to temp.
temp = get_temp(ADCvalue);
ST7735_SetCursor(3,1); ST7735_OutUDec(ADCvalue); // 0 to 4095
ST7735_SetCursor(3,2);ST7735_DecOut2(temp); // 0.01 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
}
}
