Ejemplo n.º 1
0
void _int_(27) isr_adc(void){
	int *p = (int *)(&ADC1BUF0);
	int i, media = 0;

	for(i=0; i<SAMPLES; i++){
		media += p[i*4];
	}

	media /= SAMPLES;

	if(media > 0x299){
		T1CONbits.TON = 1;
		OC1CONbits.ON = 0;
	}else{
		T1CONbits.TON = 0;
		OC1CONbits.ON = 1;
		LATE = (LATE & 0xF0);
	}

	adc_percentage = (media*100)/1023;

	printInt10(adc_percentage);
	putChar('\n');

	AD1CON1bits.ASAM = 1;
	IFS1bits.AD1IF = 0;
}
Ejemplo n.º 2
0
Archivo: ex05.c Proyecto: pbmartins/AC2
void main(void) {
    spi2_init();
    spi2_setClock(EEPROM_CLOCK);
    for(;;) {
        printInt10(eeprom_readStatus() & 0x0F);
        putChar('\n');
    }
}
Ejemplo n.º 3
0
int main(void){
	while(1){
		int temperature;

		if(getTemperature(&temperature) == 0){
			printInt10(temperature);
			printStr("\e[G");
		}

		delay(250);
	}
Ejemplo n.º 4
0
int main(void) {
  // Configure A/D module;
  int i = 0, V = 0;
  double average = 0;
  double sum = 0;

  TRISBbits.TRISB14 = 1; // RB4 digital output disconnected
  AD1PCFGbits.PCFG14 = 0; // RB4 configured as analog input (AN4)

  AD1CON1bits.SSRC = 7; // Conversion trigger selection bits: in this // modeaninternalcounterendssamplingand
  AD1CON1bits.CLRASAM = 1; // Stop conversions when the 1st A/D converter
  AD1CON1bits.ON = 1;
  AD1CON3bits.SAMC = 16; // Sample time is 16 TAD (TAD = 100 ns)

  AD1CHSbits.CH0SA = 14;
  AD1CON2bits.SMPI = 3; // uma conversao consecutiva

  while(1){
    delay(10);  // Wait 10 ms using the core timer
    if(i++ == 25) // 250 ms
    {
      AD1CON1bits.ASAM = 1;  // Start conversion
      while(IFS1bits.AD1IF == 0 );// Wait while conversion not done (AD1IF == 0)

      int *p = (int *)(&ADC1BUF0);

      for( i = 0; i < 16; i++ ){
        printInt10(p[i*4]);
        sum += p[i*4];
        printStr("\n");
      }

      average = sum/4;

      printf("%s %f","Média dos valores lidos: ", average );

      V = (average*33+511)/1023;
      printStr("\n");
      printf("%s %d","Tensão: ", V );

      i = 0; sum = 0; average = 0;
      IFS1bits.AD1IF = 0; // Reset AD1IF

      V = toBCD(V);
    }
    send2displays(V);
  }

  return 0;
  // Consoante o número de conversões consecutivas, aparecerão os valores até 15 conversões consecutivas
}
Ejemplo n.º 5
0
Archivo: ex04.c Proyecto: pbmartins/AC2
void send2displays(unsigned char value) {
    if (c < 3 || c > 8)
        displayFlag = 1;
    else
        displayFlag = 0;

    printInt10(value);
    putChar('\n');

    if (!displayFlag)
        LATB = (LATB & 0xFC00) | snakeCodes[value] | 0x0200;
    else
        LATB = (LATB & 0xFC00) | snakeCodes[value] | 0x0100;

}
Ejemplo n.º 6
0
int main(void) {
	int delay;
	int ack, temperature;
	i2c1_init(TC74_CLK_FREQ);

	while(1) {
		//start event
		i2c1_start();
		//send write addr
		ack = i2c1_send(ADDR_WR);
		//command (read temp)
		i2c1_send(RTR);
		
		//start event
		i2c1_start();

		//send read addr
		ack += i2c1_send(ADDR_RD);
		//printInt10(ack);

		if (ack != 0) {
			i2c1_stop();
			printStr("An error has ocurred, exiting.\n");
		} else {
			printStr("\nReading temperature: ");
			temperature = i2c1_receive(I2C_NACK);
			i2c1_stop();
			printInt10(temperature);
		}
		
		//delay 250ms
		delay = readCoreTimer();
		while (readCoreTimer() - delay < 5000000);

	}

	return 0;
}