Generator.c

/**
 * Generator.c - for LibTiePie 0.6+
 *
 * This example generates a 100 kHz triangle waveform, 4 Vpp.
 *
 * Find more information on http://www.tiepie.com/LibTiePie .
 */

#include 
#include 
#include 
#include "CheckStatus.h"
#include "PrintInfo.h"
#include "Utils.h"

int main(int argc, char* argv[])
{
  int status = EXIT_SUCCESS;

  // Initialize library:
  LibInit();

  // Print library information:
  printLibraryInfo();

  // Update device list:
  LstUpdate();
  CHECK_LAST_STATUS();

  // Try to open a generator:
  TpDeviceHandle_t gen = TPDEVICEHANDLE_INVALID;

  for(uint32_t index = 0; index < LstGetCount(); index++)
  {
    if(LstDevCanOpen(IDKIND_INDEX, index, DEVICETYPE_GENERATOR))
    {
      gen = LstOpenGenerator(IDKIND_INDEX, index);
      CHECK_LAST_STATUS();

      // Check for valid handle:
      if(gen != TPDEVICEHANDLE_INVALID)
      {
        break;
      }
    }
  }

  if(gen != TPDEVICEHANDLE_INVALID)
  {
    // Set signal type:
    GenSetSignalType(gen, ST_TRIANGLE);
    CHECK_LAST_STATUS();

    // Set frequency:
    GenSetFrequency(gen, 100e3); // 100 kHz
    CHECK_LAST_STATUS();

    // Set amplitude:
    GenSetAmplitude(gen, 2); // 2 V
    CHECK_LAST_STATUS();

    // Set offset:
    GenSetOffset(gen, 0); // 0 V
    CHECK_LAST_STATUS();

    // Enable output:
    GenSetOutputOn(gen, BOOL8_TRUE);
    CHECK_LAST_STATUS();

    // Print generator info:
    printDeviceInfo(gen);

    // Start signal generation:
    GenStart(gen);
    CHECK_LAST_STATUS();

    // Wait for keystroke:
    printf("Press any key to stop signal generation..." NEWLINE);
    waitForKeyStroke();

    // Stop generator:
    GenStop(gen);
    CHECK_LAST_STATUS();

    // Disable output:
    GenSetOutputOn(gen, BOOL8_FALSE);
    CHECK_LAST_STATUS();

    // Close generator:
    ObjClose(gen);
    CHECK_LAST_STATUS();
  }
  else
  {
    fprintf(stderr, "No generator available!" NEWLINE);
    status = EXIT_FAILURE;
  }

  // Exit library:
  LibExit();

  return status;
}