UINT16 read_adc(UINT8 channel) {
if (channel == A1)
AD1CHS = ADC_CH0_NEG_SAMPLEA_NVREF | ADC_CH0_POS_SAMPLEA_AN4;
else if (channel == A0)
AD1CHS = ADC_CH0_NEG_SAMPLEA_NVREF | ADC_CH0_POS_SAMPLEA_AN2;
else
return 0;
int i;
for (i = 0; i < 10; i++); // small delay (may not be needed but w/e)
AcquireADC10();
for (i = 0; i < 100; i++); // Wait for sampling to complete
ConvertADC10();
while(!BusyADC10());
//AcquireADC10();
return ReadADC10(0);
}
// === ADC Thread =============================================
static PT_THREAD (protothread_adc(struct pt *pt))
{
PT_BEGIN(pt);
myPaddle = (paddle*) malloc(sizeof(paddle));
myPaddle->xc = 4;
static int adc_10;
while(1) {
PT_YIELD_TIME_msec(2);
// read the ADC from pin 24 (AN11)
adc_10 = ReadADC10(0); // read the result of channel 9 conversion from the idle buffer
AcquireADC10(); // not needed if ADC_AUTO_SAMPLING_ON below
//READADC10 value is between 0-1020
tft_fillRect(myPaddle->xc, myPaddle->yc, 2, PADDLE_LEN, ILI9340_BLACK);
if(adc_10 < 3) adc_10 = 0;
else if (adc_10 > 920) adc_10 = 920;
myPaddle->vyc = (adc_10 >> 2) - myPaddle->yc;
myPaddle->yc = (adc_10 >> 2);
tft_fillRect(myPaddle->xc, myPaddle->yc, 2, PADDLE_LEN, ILI9340_WHITE);
} // END WHILE(1)
PT_END(pt);
} // ADC thread
