MX Foundation 4
mil1553_bc_extclock.c
/*****************************************************************************
//
// File:
// mil1553_bc_extclock.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 basic usage of MIL-STD-1553 bus controller
// using external clock. The discrete input #4 [rising edge] is used to start
// transmission of each minor frame.
//
// Can be run with mil1553_rt and mil1553_bm at the same time.
//
// Hardware requirements:
// - MAXT Flex1553-PCIe or FlexMulti with module 1553 and Discrete.
//
*****************************************************************************/
#include "../../inc/example.h"
#define M_ADDRESS 5
#define M_SUBADDR 3
//#define LOCAL
//#define LOOPBACK
int main(void)
{
HMXF_SERVER server;
HMXF_DEVICE device=0;
HMXF_MODULE mil1553Module=0;
HMXF_MODULE discreteModule=0;
HMXF_CHANNEL bc=0;
HMXF_CHANNEL discreteOut=0;
#ifdef LOOPBACK
HMXF_CHANNEL discreteIn=0;
#endif
HMXF_BUFFER acq1553Buffer=0;
HMXF_BUFFER txDiscreteBuffer=0;
HMXF_BUFFER txMsg1553Buffer=0;
HMXF_BUFFER txMsg1553Buffer2=0;
uint32 rc;
uint64 appCount;
uint64 moduleCount=0;
uint32 txBufferSize=0;
MXF_MIL1553_DATAREC* txBuffer=NULL;
uint32 rxBufferSize=0;
MXF_MIL1553_DATAREC* rxBuffer=NULL;
uint64 rxAcqStatus;
uint64 msgCount;
uint64 byteCount;
uint64 rxRec;
uint64 loop=0;
uint64 address, subAddress, dir, wordCount;
uint32 data;
char errorString[200];
#ifdef LOCAL
rc = mxfServerConnect("0.0.0.0", "", "", FALSE, &server);
#else
rc = mxfServerConnect("192.168.0.1", "admin", "admin", FALSE, &server);
#endif
printf("Starting ...\n\r");
// Initialize MX Foundation library
if(!rc)
{
rc = mxfSystemApplicationCountGet(server, &appCount);
if(!rc)
{
// if other MX Foundation application running, only load MX-Foundation library, otherwise reset cards first
if(appCount > 0)
rc = mxfSystemResourcesInit(server, 0);
else
rc = mxfSystemInit(server);
}
}
//Get handle of first device
if(!rc)
rc = mxfSystemDeviceGet(server, 0, &device);
//Get handle of first 1553 module
if(!rc)
{
rc = mxfDeviceModuleAllGet(device, MXF_MODULE_MIL1553MRT_EH, 1, &moduleCount, &mil1553Module);
if(!rc && !moduleCount)
rc = MAXT_ERROR_NOT_FOUND;
}
//Get handle of Discrete module
if(!rc)
{
rc = mxfDeviceModuleAllGet(device, MXF_MODULE_DIOFIFO_EH, 1, &moduleCount, &discreteModule);
if(!rc && !moduleCount)
rc = MAXT_ERROR_NOT_FOUND;
}
// Get handle of first MIL1553 Bus controller channel
if(!rc)
rc = mxfModuleChannelGet(mil1553Module, 1, &bc);
// Get handle of discrete output channel
if(!rc)
rc = mxfModuleChannelGet(discreteModule, 0, &discreteOut);
#ifdef LOOPBACK
// Get handle of discrete input channel
if(!rc)
rc = mxfModuleChannelGet(discreteModule, 1, &discreteIn);
// Enable internal loopback
if(!rc)
rc = mxfAttributeUint64Set(bc, KMXF_MIL1553_TX_RX_TEST_LB, VMXF_ENABLE);
if(!rc)
rc = mxfAttributeUint64Set(discreteIn, KMXF_DISCRETE_TX_RX_TEST_LB, VMXF_ENABLE);
#endif
// Allocate 1KB buffer for tx data
if(!rc)
{
txBufferSize = 64*1024;
// Device allocation
rc = mxfTxPeriodicUpdateMsgBufferAlloc(bc, 0, txBufferSize, &txMsg1553Buffer, NULL);
if(!rc)
rc = mxfTxPeriodicUpdateMsgBufferAlloc(bc, 1, 0, &txMsg1553Buffer2, 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, &acq1553Buffer, 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);
// Clear the major frame
if(!rc)
// Set the minor frame #0 using 3 Commands
if(!rc)
{
memset(minorFrame, 0, sizeof(minorFrame));
// Command #0 : Address 5, Subaddress 3, RX, 16 words
rc = mxfMIL1553CommandCompose(M_ADDRESS, M_SUBADDR, MXF_MIL1553_COMMAND_DIR_RX, 16, &minorFrame[0].command);
minorFrame[0].modulo = 1;
minorFrame[0].buffer = txMsg1553Buffer;
// Command #1 : Address 5, Subaddress 3, TX, 16 words
if(!rc)
{
rc = mxfMIL1553CommandCompose(M_ADDRESS, M_SUBADDR, MXF_MIL1553_COMMAND_DIR_TX, 16, &minorFrame[1].command);
minorFrame[1].modulo = 1;
minorFrame[1].buffer = txMsg1553Buffer2;
}
// Command #2 : Address 5, Mode Command 16, TX
if(!rc)
{
rc = mxfMIL1553CommandCompose(M_ADDRESS, 0, MXF_MIL1553_COMMAND_DIR_TX, 16, &minorFrame[2].command);
minorFrame[2].modulo = 1;
minorFrame[2].buffer = txMsg1553Buffer2;
}
if(!rc)
rc = mxfMIL1553TxPeriodicMajorFrameSet(bc, 0, 0, 3, minorFrame, NULL);
}
// Set default data for address 5, subaddress 3
if(!rc)
{
txRec1553 = (MXF_MIL1553_DATAREC *)txBuffer;
memset(txRec1553, 0, sizeof(MXF_MIL1553_DATAREC));
txRec1553->repeatCount = 1;
txRec1553->dataSize = 34; //34 bytes (command + 16 words)
txRec1553->data[0] = 0x0000; //Not used
txRec1553->data[1] = 0x0000;
txRec1553->data[2] = 0x1111;
txRec1553->data[3] = 0x2222;
txRec1553->data[4] = 0x3333;
txRec1553->data[5] = 0x4444;
txRec1553->data[6] = 0x5555;
txRec1553->data[7] = 0x6666;
txRec1553->data[8] = 0x7777;
txRec1553->data[9] = 0x8888;
txRec1553->data[10] = 0x9999;
txRec1553->data[11] = 0xAAAA;
txRec1553->data[12] = 0xBBBB;
txRec1553->data[13] = 0xCCCC;
txRec1553->data[14] = 0xDDDD;
txRec1553->data[15] = 0xEEEE;
txRec1553->data[16] = 0xFFFF;
rc = mxfMIL1553TxPeriodicUpdateMsgWrite(txMsg1553Buffer, 1, txBuffer);
}
// Start BC acquisition
if(!rc)
rc = mxfRxAcqStart(acq1553Buffer, MXF_RXACQ_FLAG_DEFAULT, 0, 0);
// Start the major frame with the clock mode (on rising edge)
if(!rc)
{
memset(&majorProperties, 0, sizeof(majorProperties));
majorProperties.options = MXF_MIL1553_TXPERIODIC_MJRFRAME_PROPERTIES_OPT_EXTCLOCK_MODE_RISING;
rc = mxfTxPeriodicMajorFrameStart(bc, 0, 0, &majorProperties);
}
if(!rc)
{
uint32 pulseCount;
uint64 timer=0;
uint64 c50ms = 50000000;
memset(dioRec, 0, sizeof(dioRec));
// Allocate 1KB buffer for discrete tx data
rc = mxfTxAperiodicBufferAlloc(discreteOut, MXF_TXAPERIODIC_PRIORITY_NORMAL, txBufferSize, &txDiscreteBuffer, NULL);
if(!rc)
rc = mxfDeviceTimerGet(device, &timer);
if(!rc)
{
// Simulate 100 pulse on discrete output at each 100 msec
for (pulseCount=0; !rc && pulseCount<100; pulseCount++)
{
timer+=c50ms;
dioRec[0].timeTag = timer;
dioRec[0].repeatCount = 1;
dioRec[0].control= 0;
dioRec[0].edge = 0xFFFF;
dioRec[0].data = 0x0010; //BC #0 = DISCRETE INPUT #4
dioRec[0].highDuration = 0;
dioRec[0].lowDuration = 0;
timer+=c50ms;
dioRec[1].timeTag = timer;
dioRec[1].repeatCount= 1;
dioRec[1].control= 0;
dioRec[1].edge = 0xFFFF;
dioRec[1].data = 0x0000;
dioRec[1].highDuration = 0;
dioRec[1].lowDuration = 0;
rc = mxfDiscreteTxAperiodicWrite(txDiscreteBuffer, MXF_TXAPERIODIC_FLAG_USE_RECORD_ABSOLUTE_TIME, 0, 2, dioRec);
if (rc)
printf("mxfDiscreteTxAperiodicWrite() error; rc=0x%08x (count=%d)\n\r", rc, pulseCount);
}
}
}
// Read and display received messages
if(!rc)
{
do
{
rc = mxfMIL1553RxAcqRead(acq1553Buffer, 0, rxBufferSize, &rxAcqStatus, &msgCount, &byteCount, rxBuffer);
if (rc)
printf("mxfMIL1553RxAcqRead() error; rc=0x%08x\n\r", rc);
for (rxRec=0, rxRec1553 = (MXF_MIL1553_DATAREC*)rxBuffer; rxRec < msgCount && !rc; rxRec++)
{
rc = mxfMIL1553DataRecordDecompose(bc, 1, rxRec1553, &msgInfo);
if(!rc)
{
rc = mxfMIL1553CommandDecompose(rxRec1553->data[0], &address, &subAddress, &dir, &wordCount);
if(!rc)
{
printf("\n\r%llu:\t", rxRec1553->timeTag);
switch(msgInfo.msgType)
{
case MXF_MIL1553_MSGINFO_TYPE_BCRT:
printf("BC to RT%lld SA%lld WC%lld (0x%04x)\n\r", address, subAddress, wordCount, rxRec1553->data[0]);
printf("\t\tRT status: 0x%04x\n\r", rxRec1553->data[msgInfo.statusIndex[0]]);
break;
case MXF_MIL1553_MSGINFO_TYPE_RTBC:
printf("RT%lld SA%lld WC%lld to BC (0x%04x)\n\r", address, subAddress, wordCount, rxRec1553->data[0]);
printf("\t\tRT status: 0x%04x\n\r", rxRec1553->data[msgInfo.statusIndex[0]]);
printf("\t\tRT data:");
for(data=0; data<msgInfo.dataWordCount; data++)
{
if(data && !(data%4))
printf("\n\r\t\t\t");
printf(" 0x%04x", rxRec1553->data[msgInfo.dataIndex + data]);
}
printf("\n\r");
break;
case MXF_MIL1553_MSGINFO_TYPE_MODECODE_TXDATA:
printf("BC Mode Command %lld to RT%lld SA%lld (0x%04x)\n\r", wordCount, address, subAddress, rxRec1553->data[0]);
if((msgInfo.statusIndex[0] != 0xffff) && (msgInfo.dataIndex != 0xffff))
{
printf("\t\tRT status: 0x%04x\n\r", rxRec1553->data[msgInfo.statusIndex[0]]);
printf("\t\tRT data: 0x%04x\n\r", rxRec1553->data[msgInfo.dataIndex]);
}
break;
}
}
}
// Get next msg
rc = mxfMIL1553NextDataRecordPtrGet(rxRec1553, &rxRec1553);
}
mxfSleep(500);
loop++;
} while(loop < 25);
}
printf("Stopping\n\r");
// Stop acquisition
if(!rc)
rc = mxfRxAcqStop(acq1553Buffer);
// Stop the major frame
if(!rc)
// 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);
}
// Unload MX Foundation library
rc = mxfSystemApplicationCountGet(server, &appCount);
if(!rc)
{
// if an other application running, only release the resource, otherwise reset everything
if(appCount > 1)
else
{
// Free all buffers and terminate
if(txMsg1553Buffer)
{
rc = mxfTxPeriodicUpdateMsgBufferFree(txMsg1553Buffer);
if (rc)
printf("Free buffer failed !\n\r");
}
if(txMsg1553Buffer2)
{
rc = mxfTxPeriodicUpdateMsgBufferFree(txMsg1553Buffer2);
if (rc)
printf("Free buffer failed !\n\r");
}
if(acq1553Buffer)
{
rc = mxfRxAcqBufferFree(acq1553Buffer);
if (rc)
printf("Free buffer failed !\n\r");
}
if(txDiscreteBuffer)
{
rc = mxfTxAperiodicBufferFree(txDiscreteBuffer);
if (rc)
printf("Free buffer failed !\n\r");
}
}
}
printf("\nPress enter to terminate\n\r");
getchar();
return 0;
}
Updated 03/30/2022