Dspic30f6014 read ADC Channels

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Dspic30f6014 read ADC Channels

Postby arelone » Tue Dec 06, 2016 9:59 pm

Hi,
I created a code to read from 8 channels from dspic30f6014a using UART1. Currently I'm using ccs c compiler ver 5.010 and win10 platform. The code compiled and there was no error. However in hyper terminal no values are displayed. I compared with other code using 18F4580 (SK40C) to display 8 values from adc channels and it works. What caused this problem? Did I miss something important here? Both devices are using UC00A and UIC00B.


TQ
CODE: SELECT_ALL_CODE
[code]#include <dspic30f6014A uart 9600 wo start char.h>
#use rs232(baud=9600, xmit=PIN_F3,rcv=PIN_F2,Bits=8, ERRORS)
#fuses FRC, NOWDT, NOPROTECT, PUT64, BORV27                            //correct - Power On Reset Timer value 64ms, Brownout reset at 2.7V
#define LED PIN_B10
int z;
void main()
{
   setup_adc_ports(ALL_ANALOG);                                      // Built-in A/D setup function
   setup_adc(ADC_CLOCK_INTERNAL);                                    // Built-in A/D setup function
   const int8 channel[] = 0, 1, 2, 3, 4, 5, 6, 7;
   int16 ADC_value[sizeof(channel)];
   int8 value;
   int16 voltage[sizeof(channel)];
     
   while(TRUE)
  {
   
       for(z = 0; z < 1; z++)
    {
     
      // read from 8 channels ADC
      for(value = 0; value < sizeof(channel); value++)            // Read from 8 adc channels
      {
        output_high(LED);
        set_adc_channel(channel[value]);
        ADC_value[value] = read_adc();  // ADC readings
        voltage[value] = ADC_value[value] * (5000 / 255);         // Convert ADC data to mV
      }

      // Print all ADC data
      for(value = 0; value < sizeof(channel); value++)            // Display 8 voltage values
      {
        printf("%4.3w\r\n", voltage[value]);                      //format data in .000
      }

      printf("9\r\n");                                            //'9' is display at each end of 8 values
    }
  }
}

[/code]


CODE: SELECT_ALL_CODE
#include <18F4580.h>
#device ADC=8
#fuses HS,NOWDT,NOPROTECT,NOLVP
#use delay(clock=20000000)
#use rs232(baud=9600, xmit=PIN_C6, rcv=PIN_C7,bits=8, ERRORS)


void main()
{
  setup_adc_ports(ALL_ANALOG); 
  setup_adc(ADC_CLOCK_DIV_64 | ADC_TAD_MUL_8);
   
  const int8 channel[] = 0, 1, 2, 3, 4, 5, 6, 7;
  int16 ADC_value[sizeof(channel)];
  int8 value;
  int16 voltage[sizeof(channel)];
  int z; 
 
  SETUP_ADC_PORTS(ALL_ANALOG);
  output_low(PIN_B6);
  output_low(PIN_B7);

  while(TRUE)
  {
     
    while(TRUE)
   {
     for(z = 0; z < 1; z++)
    {
      output_low(PIN_B6);

      // Collect all ADC data
      for(value = 0; value < sizeof(channel); value++)            // Read from 8 adc channels
      {
       
        set_adc_channel(channel[value]);
       
        ADC_value[value] = read_adc();  // ADC readings
        voltage[value] = ADC_value[value] * (5000 / 255);         // Convert ADC data to mV
        output_high(PIN_B7);
      }

      // Print all ADC data
      for(value = 0; value < sizeof(channel); value++)            // Display 8 voltage values
      {
        printf("%4.3w\r\n", voltage[value]);
      }

      printf("9\r\n");
    }
  }
}
}
arelone
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Joined: Tue Nov 24, 2015 10:27 pm

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