testadcmultic.nc

tinyos-2.x.rar

/* 
 * Copyright (c) 2007, Technische Universitaet Berlin
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 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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 *
 * - Revision -------------------------------------------------------------
 * $Revision: 1.4 $
 * $Date: 2008/09/29 15:51:23 $
 * @author: Jan Hauer <[e-mail]>
 * ========================================================================
 */

/**
 * Testing MultiChannel HAL interface of ADC12 on msp430. 
 *
 * Author: Jan Hauer
 **/
generic module TestAdcMultiC(  
                          uint8_t inch,            // first input channel 
                          uint8_t sref,            // reference voltage 
                          uint8_t ref2_5v,         // reference voltage level 
                          uint8_t adc12ssel,       // clock source sample-hold-time 
                          uint8_t adc12div,        // clock divider sample-hold-time 
                          uint8_t sht,             // sample-hold-time
                          uint8_t sampcon_ssel,    // clock source sampcon signal 
                          uint8_t sampcon_id,      // clock divider sampcon 

                          uint8_t inch2,           // second input channel 
                          uint8_t sref2            // second reference voltage 
) @safe()
{
  uses {
    interface Boot;
    interface Resource;
    interface Msp430Adc12MultiChannel as MultiChannel;
  }
  provides {
    interface Notify<bool>;
    interface AdcConfigure<const msp430adc12_channel_config_t*>;
  }
}
implementation
{
  
#define BUFFER_SIZE 100
#define NUM_REPETITIONS 5
  const msp430adc12_channel_config_t config = {inch, sref, ref2_5v, adc12ssel, adc12div, sht, sampcon_ssel, sampcon_id};
  adc12memctl_t memCtl = {inch2, sref2};
  norace uint8_t state;
  uint16_t buffer[BUFFER_SIZE];
  norace uint8_t count = 0;
  void task getData();

  void task signalFailure()
  {
    signal Notify.notify(FALSE);
  }

  void task signalSuccess()
  {
    signal Notify.notify(TRUE);
  }

  bool assertData(uint16_t *data, uint16_t num)
  {
    uint16_t i;
    if (num != BUFFER_SIZE)
      post signalFailure();
    for (i=0; i<num; i++)
      if (!data[i] || data[i] >= 0xFFF){
        post signalFailure();
        return FALSE;
      }
    return TRUE;
  }

  async command const msp430adc12_channel_config_t* AdcConfigure.getConfiguration()
  {
    return &config;
  }

  event void Boot.booted()
  {
    count = NUM_REPETITIONS;
    post getData();
  }

  void task getData()
  {
    call Resource.request();
  }
  
  event void Resource.granted()
  {
    if (call MultiChannel.configure(&config, &memCtl, 1, buffer, BUFFER_SIZE, 0) == SUCCESS)
      call MultiChannel.getData();
  }

  async event void MultiChannel.dataReady(uint16_t *buf, uint16_t numSamples)
  {
    if (!assertData(buf, numSamples)){
      post signalFailure();
    } else if (count){
      count--;
      call MultiChannel.getData();
    } else {
      post signalSuccess();
      call Resource.release();
    }
  }

  command error_t Notify.enable(){}
  command error_t Notify.disable(){}
}