adc.c

/*****************************************************************************
//
//     File:
//        adc.c
//
//       Copyright (c) MAX Technologies Inc. 1988-2019, All Rights Reserved.
//             CONFIDENTIAL AND PROPRIETARY INFORMATION WHICH IS THE 
//                         PROPERTY OF MAX TECHNOLOGIES INC. 
//
//      This example demonstrates the configuration of an IPM-ADC module and perform
//       acquisition on 32 single-ended channels.

//       Hardware requirements:
//          - MAXT 500 series carrier with IPM-ADC (jumpers must be set for +/- 10V operation).
//
*****************************************************************************/

#include "example.h"

#define MAX_ANALOG_CHN_NUM 32

#define MAX_REC 1000

int main(void)
{
uint32       rc;
HMXF_SERVER server;
HMXF_MODULE module=0;
HMXF_CHANNEL rxChn[MAX_ANALOG_CHN_NUM];
HMXF_BUFFER rxBuffer[MAX_ANALOG_CHN_NUM];
MXF_ANALOG_DATAREC recANALOG[MAX_REC];
MXF_ANALOG_DATAREC* p;
int         iPort;
uint64      count=0;
uint64      status=0, byteCount, iRec;

   // Connect to services and initialize environment
   rc = mxfServerConnect("0.0.0.0", "", "", FALSE, &server);
   if (rc != MAXT_SUCCESS)
   {
      printf("Failed to connect; rc=0x%08x", rc);
      printf("\nPress a key to terminate\n");
      getchar();
      return 0;
   }

   // Initialize the server
   printf("\nStarting\n");

   rc = mxfSystemInit(server);

   // Get a handle to 32 Analog IPM-ADC channel
   if (!rc)
      rc = mxfChannelAllGet(server, MXF_CLASS_ANALOG, MXF_SCLASS_RX_CHANNEL, MXF_MODULE_ALL, MAX_ANALOG_CHN_NUM, &count, rxChn);

   // If channel not found, return an error
   if (!rc && !count)
      rc = MAXT_ERROR_NOT_FOUND;

   if (!rc)
      rc = mxfChannelInfoGet(rxChn[0], NULL, &module);

   // Set time base 
   if(!rc)
      rc = mxfSystemTimeBaseSet(server, MXF_TIMEBASE_DEVICE_USEC);

   // Set the scan mode to burst continuous
   if(!rc)
      rc = mxfAttributeUint64Set(module, KMXF_ANALOG_MODULE_ADC_SCAN_MODE, VMXF_ANALOG_MODULE_ADC_SCAN_MODE_BURST_CONTINUOUS);

   // Set the conversion rate to 1 millisecond
   if(!rc)
      rc = mxfAttributeUint64Set(module, KMXF_ANALOG_MODULE_ADC_CONVERSION_PERIOD, 1000);

   // Set calibration mode to disable
   if(!rc)
      rc = mxfAttributeUint64Set(module, KMXF_ANALOG_MODULE_ADC_CALIBRATION_MODE, VMXF_ANALOG_MODULE_ADC_CALIBRATION_MODE_DISABLE);

   // Set the input range to +/-10v
   if(!rc)
      rc = mxfAttributeUint64Set(module, KMXF_ANALOG_MODULE_ADC_INPUT_RANGE, VMXF_ANALOG_MODULE_ADC_INPUT_RANGE_10v);

   // Set the data format to float
   if (!rc)
      rc = mxfAttributeUint64Set(module, KMXF_ANALOG_MODULE_ADC_DATA_FORMAT, VMXF_ANALOG_MODULE_ADC_DATA_FORMAT_FLOAT);

   // Set the channel differential selection to none (all single ended)
   if(!rc)
      rc = mxfAttributeUint64Set(module, KMXF_ANALOG_MODULE_ADC_CHN_DIFF_SELECTION, 0x0000);

   // Set the channel selection to all
   if(!rc)
      rc = mxfAttributeUint64Set(module, KMXF_ANALOG_MODULE_ADC_CHN_SELECTION, 0xffffffff);

   for(iPort=0;!rc && iPort<MAX_ANALOG_CHN_NUM;iPort++)
   {
      // Allocate RX acquisition buffer
      rc = mxfRxAcqBufferAlloc(rxChn[iPort], sizeof(recANALOG), &rxBuffer[iPort], NULL);

      //Start acquisition
      if(!rc)
         rc = mxfRxAcqStart(rxBuffer[iPort], MXF_RXACQ_FLAG_DEFAULT, 0, 0);
   }

   // Wait a little
   if(!rc)
      mxfSleep(100);

   for (iPort = 0; !rc && iPort < MAX_ANALOG_CHN_NUM; iPort++)
   {
      //Stop acquisition
      rc = mxfRxAcqStop(rxBuffer[iPort]);
   }

   for(iPort=0;!rc && iPort<MAX_ANALOG_CHN_NUM;iPort++)
   {
      rc = mxfAnalogRxAcqRead(rxBuffer[iPort], 0, sizeof(recANALOG), &status, &count, &byteCount, recANALOG);
      p = recANALOG;
      for(iRec=0;!rc && iRec<count;iRec++)
      {
          printf( "Value of channel %d at %llu is %.3f. V\n\r", iPort, p->timeTag, p->data.value);
          mxfAnalogNextDataRecordPtrGet(p, &p);
      }
      if (!rc)
         rc = mxfRxAcqClear(rxBuffer[iPort]);
      if (!rc)
         rc = mxfRxAcqBufferFree(rxBuffer[iPort]);
   }

   if (rc)
   {
      char buffer[256];

      if (mxfSystemErrorStringGet(server, rc, sizeof(buffer), buffer))
         sprintf(buffer, "ERROR # 0x%08X", rc);

      printf("%s\n\r", buffer);
   }

   // Terminate
   mxfSystemTerminate(server);
   mxfServerDisconnect(server);

   printf("\nPress enter to terminate\n");
   getchar();

return rc;
}