MikroElektronika books

Example 4 – Operating an AD converter

The example shows sampling by an AD converter and sends it as a text via UART1. The realization is carried out by using the mikroPascal compiler for dsPIC30F microcontrollers. Fig. 13-4 shows the connection of a dsPIC30F6014A microcontroller for sampling the voltages of the sliding contact of a potentiometer connected to the pin AN10 and sending it as a text via UART1.

pic-microcontrollers-programming-dspic-in-pascal-chapter-13-image-4

Fig. 13-4 Connection of a dsPIC30F6014A device in order to sample on pin AN10

program ADC_test;

var adcRes : word;
    txt    : string[5];

begin
  TRISB.10 := 1; // set pin as input - needed for ADC to work

  Uart1_Init(9600);

  while TRUE do
    begin
      adcRes := Adc_Read(10);
      WordToStr(adcRes, txt);
      Uart1_Write_Text(txt);
      Delay_ms(50);
    end;
end.