TaskHandle EXPORT_API EOGSetCallback(UnityCallback uCallback)
{
int32 error = 0;
char errBuff[2048] = { '\0' };
//int32 read;
//float64 data[1];
if (uCallback)
{
DAQmxErrChk(DAQmxCfgSampClkTiming(taskHandle, "", 240.0, DAQmx_Val_Rising, DAQmx_Val_ContSamps, numSamples));
DAQmxErrChk(DAQmxRegisterEveryNSamplesEvent(taskHandle, DAQmx_Val_Acquired_Into_Buffer, 1, 0, uCallback, NULL));
// DAQmxErrChk(DAQmxRegisterEveryNSamplesEvent(taskHandle, DAQmx_Val_Acquired_Into_Buffer, 1000, 0, EveryNSamplesCallback, NULL));
DAQmxErrChk(DAQmxRegisterDoneEvent(taskHandle, 0, DoneCallback, NULL));
/*********************************************/
// DAQmx Start Code
/*********************************************/
DAQmxErrChk(DAQmxStartTask(taskHandle));
return taskHandle;
}
Error:
if (DAQmxFailed(error))
{
DAQmxGetExtendedErrorInfo(errBuff, 2048);
Cleanup();
printf("DAQmx Error: %s\n", errBuff);
}
return 0;
}
void NationalInstrumentsDAQ::registerDoneEvent( void )
{
DAQERR( DAQmxRegisterDoneEvent (
_clk.daqtask, //task handle
0, //run the callback in a DAQmx thread
&_daq_event_done_callback, //callback
(void*)this)); //data passed to callback
}
int NiPci6220Config()
{
int32 error = 0;
char errBuff[2048];
daq6220pvt.sampsPerChan = (uInt64)((daq6220pvt.t1 - daq6220pvt.t0) * daq6220pvt.rate);
epicsPrintf("**** Initialize Task 6220 ****\n");
epicsPrintf("**** 6220 : sampsPerChan = %d****\n", daq6220pvt.sampsPerChan);
DAQmxErrChk(DAQmxCreateTask("", &daq6220pvt.taskHandle));
DAQmxErrChk(DAQmxCreateAIVoltageChan(daq6220pvt.taskHandle, "Dev3/ai0:15","", daq6220pvt.terminalConfig, -10.0, 10.0, DAQmx_Val_Volts, NULL));
if(daq6220pvt.extMode == 1) {
DAQmxErrChk(DAQmxCfgSampClkTiming(daq6220pvt.taskHandle, "/Dev3/PFI7", daq6220pvt.rate, DAQmx_Val_Rising, DAQmx_Val_FiniteSamps, daq6220pvt.sampsPerChan));
}
else {
DAQmxErrChk(DAQmxCfgSampClkTiming(daq6220pvt.taskHandle, "", daq6220pvt.rate, DAQmx_Val_Rising, DAQmx_Val_FiniteSamps, daq6220pvt.sampsPerChan));
}
if(daq6220pvt.trigMode == 1) {
DAQmxErrChk (DAQmxCfgDigEdgeStartTrig(daq6220pvt.taskHandle,"/Dev3/PFI0",DAQmx_Val_Rising));
DAQmxErrChk (DAQmxRegisterEveryNSamplesEvent(daq6220pvt.taskHandle,DAQmx_Val_Acquired_Into_Buffer,daq6220pvt.sampsPerChan,0,EveryNCallback,NULL));
DAQmxErrChk (DAQmxRegisterDoneEvent(daq6220pvt.taskHandle,0,DoneCallback,NULL));
}
return 0;
Error:
if( DAQmxFailed(error) )
DAQmxGetExtendedErrorInfo(errBuff,2048);
if( daq6220pvt.taskHandle!=0 ) {
DAQmxStopTask(daq6220pvt.taskHandle);
DAQmxClearTask(daq6220pvt.taskHandle);
}
if( DAQmxFailed(error) )
epicsPrintf("DAQmx Error(6220): %s\n",errBuff);
return -1;
}
int start_daq (void)
{
int32 error=0;
char errBuff[2048]={'\0'};
char str1[256],str2[256],trigName[256];
char devName[256];
float64 clkRate;
int i;
for (i = 0; i < DEV_NUM; i++) {
sprintf (devName, "Dev%d/ai0", i+1);
DAQmxErrChk2 ("CreateTask", DAQmxCreateTask("",&gTaskHandle[i]));
DAQmxErrChk2 ("CreateAIVoltageChan" , DAQmxCreateAIVoltageChan(gTaskHandle[i],devName,"",DAQmx_Val_Cfg_Default,-10.0,10.0,DAQmx_Val_Volts,NULL));
DAQmxErrChk2 ("CfgSampClkTiming", DAQmxCfgSampClkTiming(gTaskHandle[i],"",10000.0,DAQmx_Val_Rising,DAQmx_Val_ContSamps,1000));
DAQmxErrChk2 ("CfgDigEdgeStartTrig", DAQmxCfgDigEdgeStartTrig(gTaskHandle[i],TRIG_NAME,DAQmx_Val_Rising));
DAQmxErrChk2 ("RegisterEveryNSamplesEvent", DAQmxRegisterEveryNSamplesEvent(gTaskHandle[i],DAQmx_Val_Acquired_Into_Buffer,1000,0,EveryNCallback,NULL));
DAQmxErrChk2 ("RegisterDoneEvent", DAQmxRegisterDoneEvent(gTaskHandle[i],0,DoneCallback,NULL));
printf ("Dev(%s) : Task(%u) was created \n", devName, gTaskHandle[i]);
}
for (i = 0; i < DEV_NUM; i++) {
gReadTotal[i] = 0;
printf ("start task%d(%u) ...\n", i+1, gTaskHandle[i]);
DAQmxErrChk2 ("StartTask", DAQmxStartTask(gTaskHandle[i]));
}
printf("Acquiring samples continuously. Press Enter to interrupt\n");
printf("\nHandle:\tTotal:\tDev1\tDev2\tDev3\n");
getchar();
Error:
if( DAQmxFailed(error) ) {
DAQmxGetExtendedErrorInfo(errBuff,2048);
printf("DAQmx Error: %u(0x%x), %s\n", error, error, errBuff);
}
/*********************************************/
// DAQmx Stop Code
/*********************************************/
for (i = 0; i < DEV_NUM; i++) {
if( gTaskHandle[i] ) {
printf ("stop task%d (%u) ...\n", i+1, gTaskHandle[i]);
DAQmxStopTask(gTaskHandle[i]);
DAQmxClearTask(gTaskHandle[i]);
gTaskHandle[i] = 0;
}
}
if( DAQmxFailed(error) ) {
printf("DAQmx Error: %u(0x%x), %s\n", error, error, errBuff);
}
printf("End of program. Press enter to restart ... \n");
getchar();
return 0;
}
int start_daq (void)
{
int32 error=0;
char errBuff[2048]={'\0'};
int i;
for (i = 0; i < getNumOfDev(); i++) {
printf ("\n------------------------------------------------------------\n");
printf ("Create Task for Dev(%s)\n", gTaskInfoList[i].devName);
DAQmxErrChk2 ("CreateTask", DAQmxCreateTask("",&gTaskInfoList[i].nTaskHandle));
DAQmxErrChk2 ("CreateAIVoltageChan" , DAQmxCreateAIVoltageChan(gTaskInfoList[i].nTaskHandle,
gTaskInfoList[i].chName,"",DAQmx_Val_Cfg_Default,-10.0,10.0,DAQmx_Val_Volts,NULL));
DAQmxErrChk2 ("CfgSampClkTiming", DAQmxCfgSampClkTiming(gTaskInfoList[i].nTaskHandle,"",10000.0,DAQmx_Val_Rising,DAQmx_Val_ContSamps,1000));
//DAQmxErrChk2 ("SetRefClkSrc", DAQmxSetRefClkSrc(gTaskInfoList[i].nTaskHandle,"PXI_Clk1"));
//DAQmxErrChk2 ("SetRefClkRate", DAQmxSetRefClkRate(gTaskInfoList[i].nTaskHandle,10000000.0));
DAQmxErrChk2 ("CfgDigEdgeStartTrig", DAQmxCfgDigEdgeStartTrig(gTaskInfoList[i].nTaskHandle,gTaskInfoList[i].trigName,DAQmx_Val_Rising));
DAQmxErrChk2 ("RegisterEveryNSamplesEvent", DAQmxRegisterEveryNSamplesEvent(gTaskInfoList[i].nTaskHandle,DAQmx_Val_Acquired_Into_Buffer,1000,0,EveryNCallback,NULL));
DAQmxErrChk2 ("RegisterDoneEvent", DAQmxRegisterDoneEvent(gTaskInfoList[i].nTaskHandle,0,DoneCallback,NULL));
printf ("Dev(%s) : Task(%u) was created \n", gTaskInfoList[i].devName, gTaskInfoList[i].nTaskHandle);
}
printf ("\n------------------------------------------------------------\n");
for (i = 0; i < getNumOfDev(); i++) {
gTaskInfoList[i].nReadTotal = 0;
DAQmxErrChk2 ("StartTask", DAQmxStartTask(gTaskInfoList[i].nTaskHandle));
}
printf ("\n------------------------------------------------------------\n");
printf("Acquiring samples continuously. Press Enter to interrupt\n");
printf("\nHandle:\tTotal:\tDev1\tDev2\tDev3\n");
getchar();
Error:
if( DAQmxFailed(error) ) {
DAQmxGetExtendedErrorInfo(errBuff,2048);
printf("DAQmx Error: %u(0x%x), %s\n", error, error, errBuff);
}
/*********************************************/
// DAQmx Stop Code
/*********************************************/
for (i = 0; i < getNumOfDev(); i++) {
if( gTaskInfoList[i].nTaskHandle ) {
printf ("stop task%d (%u) ...\n", i+1, gTaskInfoList[i].nTaskHandle);
DAQmxStopTask(gTaskInfoList[i].nTaskHandle);
DAQmxClearTask(gTaskInfoList[i].nTaskHandle);
gTaskInfoList[i].nTaskHandle = 0;
}
}
if( DAQmxFailed(error) ) {
printf("DAQmx Error: %u(0x%x), %s\n", error, error, errBuff);
}
printf("End of program. Press enter to restart ... \n");
getchar();
return 0;
}