mil1553_aperiodic.c

/*****************************************************************************
//
##    File:
##       mil1553_aperiodic.c
//
//       Copyright (c) MAX Technologies Inc. 1988-2016, All Rights Reserved.
//             CONFIDENTIAL AND PROPRIETARY INFORMATION WHICH IS THE 
//                         PROPERTY OF MAX TECHNOLOGIES INC. 
//
//      This example demonstrates the usage of simple aperiodic transmission 
//      to transmit commands with MIL-STD-1553 BC channel and record using BC.
//      To record the messages with the BC, you need to connect RT0 to your hardware.
//      Use hybrid mode if available.
//
//       Hardware requirements:
//          - MAXT Flex1553-PCIe or FlexMulti or 500 series carrier with IPM-1553-MRT
//
*****************************************************************************/

#include "example.h"

#define NUM_REC_TX  10

#define LOCAL
//#define LOOPBACK

int main(void)
{
uint32 rc;
uint64 deviceCount;
uint64 moduleCount=0;
uint64 channelCount=0;
HMXF_SERVER server;
HMXF_DEVICE device=0;
HMXF_MODULE module=0;
HMXF_CHANNEL bc=0;
HMXF_BUFFER bcBufferTx=0;
HMXF_BUFFER bcBufferRx=0;

uint32 txBufferSize;
MXF_MIL1553_DATAREC* txBuffer=NULL;
MXF_MIL1553_DATAREC* txRec1553;

uint32 rxBufferSize=0;
MXF_MIL1553_DATAREC* rxBuffer=NULL;
MXF_MIL1553_DATAREC* rxRec1553;
uint64   card, mod, port;
uint64   cmd;
uint64   rxAcqStatus;
uint64   msgCount;
uint64   byteCount;
uint64   rxRec;
uint32   data;
uint64 options;

char     errorString[200];

   // Connect to services and initialize environment
#ifdef LOCAL
   rc = mxfServerConnect("0.0.0.0", "", "", FALSE, &server);
#else
   rc = mxfServerConnect("192.168.0.1", "admin", "admin", FALSE, &server);
#endif

   // Initialize MX Foundation library
   if(!rc)
   {
      printf("Starting ...\n");
      rc = mxfSystemInit(server);
   }

   // Get handle of first MIL-STD-1553 Bus controller channel
   if(!rc)
      rc = mxfSystemDeviceAllGet(server, MXF_DEVICE_ALL, 1, &deviceCount, &device);
   // Try with MXF_MODULE_MIL1553MRT_EH and if not found, try with MXF_MODULE_MIL1553MRT
   if(!rc)
      rc = mxfDeviceModuleAllGet(device, MXF_MODULE_MIL1553MRT_EH, 1, &moduleCount, &module);
   if (!rc && !moduleCount)
      rc = mxfDeviceModuleAllGet(device, MXF_MODULE_MIL1553MRT, 1, &moduleCount, &module);

   if(!rc && moduleCount)
      rc = mxfModuleChannelAllGet(module, MXF_CLASS_MIL1553, MXF_SCLASS_BC_CHANNEL, 1, &channelCount, &bc);

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

   // Show channel locations for BC
   rc = mxfChannelLocationGet(bc, &card, &mod, &port);
   if (!rc)
      printf("BC location is Device:%llu Module:%llu Port:%llu\n", card, mod, port);

   // Use Hybrid Mode with RT0 set to 1553A if available
   if (!rc)
   {
      rc = mxfAttributeUint64Get(module, KMXF_MIL1553_MODULE_OPTIONS, &options);
      if(!rc && (options & VMXF_MIL1553_MODULE_OPTIONS_HYBRID_MODE))
      {
         rc = mxfAttributeUint64Set(bc, KMXF_MIL1553_MILSTD1553_REV, VMXF_MIL1553_MILSTD1553_REVHYBRID);

         if (!rc)
            rc = mxfMIL1553RtsHybridRevSet(bc, 0x00000001);
      }
   }

   #ifdef LOOPBACK
   if(!rc)
      rc = mxfAttributeUint64Set(bc, KMXF_MIL1553_TX_RX_TEST_LB, VMXF_ENABLE);
   #endif

   // Allocate enough buffer for at least NUM_REC_TX tx data
   if(!rc)
   {
      txBufferSize = NUM_REC_TX * sizeof(MXF_MIL1553_DATAREC);

      // Device allocation
      rc = mxfTxAperiodicBufferAlloc(bc, MXF_TXAPERIODIC_PRIORITY_LOW, txBufferSize, &bcBufferTx, NULL);

      // Host allocation
      if(!rc)
      {
         txBuffer = (MXF_MIL1553_DATAREC*)malloc(txBufferSize);
         if(!txBuffer)
            rc = MAXT_ERROR_MEM;
      }
   }

   // Allocate 10KB buffer for rx data
   if(!rc)
   {
      rxBufferSize = 10*1024;

      // Device allocation
      rc = mxfRxAcqBufferAlloc(bc, rxBufferSize, &bcBufferRx, NULL);

      // Host allocation
      if(!rc)
      {
         rxBuffer = (MXF_MIL1553_DATAREC*)malloc(rxBufferSize);
         if(!rxBuffer)
            rc = MAXT_ERROR_MEM;
      }
   }

   // Set timebase to RTC nsec
   if(!rc)
      rc = mxfSystemTimeBaseSet(server, MXF_TIMEBASE_DEVICE_NSEC);

   // Start BC acquisition
   if(!rc)
      rc = mxfRxAcqStart(bcBufferRx, MXF_RXACQ_FLAG_DEFAULT, 0, 0);

   // Send NUM_REC_TX commands
   txRec1553 = txBuffer;
   for(cmd=0; cmd<NUM_REC_TX && !rc; cmd++)
   {
      memset(txRec1553, 0, sizeof(MXF_MIL1553_DATAREC));
      // send two commands in alternance
      if(cmd % 2)
      {
         txRec1553->timeTag = 0;
         txRec1553->repeatCount = 1;
         txRec1553->control = 0;
         txRec1553->dataSize    = 10; //10 bytes (command + 4 words)
         mxfMIL1553CommandCompose(0, 3, MXF_MIL1553_MSGTYPE_RX, 4, &txRec1553->data[0]);

         txRec1553->data[1]  = 0x0000;
         txRec1553->data[2]  = 0x1111;
         txRec1553->data[3]  = 0x2222;
         txRec1553->data[4]  = 0x3333;
      }
      else
      {
         txRec1553->timeTag = 0;
         txRec1553->repeatCount = 1;
         txRec1553->dataSize    = 10; //10 bytes (command + 4 words)
         mxfMIL1553CommandCompose(0, 5, MXF_MIL1553_MSGTYPE_RX, 4, &txRec1553->data[0]);

         txRec1553->data[1]  = 0x3333;
         txRec1553->data[2]  = 0x2222;
         txRec1553->data[3]  = 0x1111;
         txRec1553->data[4]  = 0x0000;
      }
      mxfMIL1553NextDataRecordPtrGet(txRec1553, &txRec1553);
   }
   // Send commands
   if (!rc)
     rc = mxfMIL1553TxAperiodicWrite(bcBufferTx, MXF_TXAPERIODIC_FLAG_DEFAULT, 0, cmd, txBuffer);

   // Read and display received messages for 5 seconds
   if(!rc)
   {
      // Wait a little for commands to be transmitted
      mxfSleep(1000);

      rc = mxfMIL1553RxAcqRead(bcBufferRx, 0, rxBufferSize, &rxAcqStatus, &msgCount, &byteCount, rxBuffer);
      
      rxRec1553 = rxBuffer;
      for(rxRec=0; rxRec<msgCount && !rc; rxRec++)
      {
         printf("\n\r%llu:\t", rxRec1553->timeTag);
         printf("Control: 0x%08x", rxRec1553->control);
         for(data=0; data<rxRec1553->dataSize/2; data++)
         {
            if(data && !(data%5))
               printf("\n\r\t\t\t");

            printf(" 0x%04x", rxRec1553->data[data]);
         }
         printf("\n\r");

         // Get next msg
         rc = mxfMIL1553NextDataRecordPtrGet(rxRec1553, &rxRec1553);
      }
   }

   // Clear aperiodic buffer
   if(!rc)
      rc = mxfTxAperiodicClear(bcBufferTx, 0);

   // Stop acquisition
   if(!rc)
      rc = mxfRxAcqStop(bcBufferRx);

   // Clear acquisition
   if(!rc)
      rc = mxfRxAcqClear(bcBufferRx);

   // free buffers
   if(txBuffer)
      free(txBuffer);
    
   if(rxBuffer)
      free(rxBuffer);

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

      printf("%s\n\r", errorString);
   }
   
   // Free all buffers and terminate
   if (device)
      mxfDeviceBuffersFree(device);

   // Unload MX Foundation library
   mxfSystemTerminate(server);

   mxfServerDisconnect(server);

   printf("\n\rPress enter to terminate\n\r");
   getchar();
   
   return 0;
}