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Avoid hard-coding PFI12 as Ctr0 output #31

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Avoid hard-coding PFI12 as Ctr0 output #31

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11 changes: 2 additions & 9 deletions src/Detector.c
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Original file line number Diff line number Diff line change
Expand Up @@ -262,20 +262,13 @@ static OScDev_RichError *ConfigureDetectorTiming(struct DetectorConfig *config,
static OScDev_RichError *
ConfigureDetectorTrigger(OScDev_Device *device,
struct DetectorConfig *config) {
// For now we hard-code the trigger to PFI12, which is the output of CTR0

// Alternative: virtually connect counter (line clock) output terminal and
// acquisition triggerIn terminal without physical wiring:
// nierr = DAQmxConnectTerms("/PXI1Slot2/Ctr0InternalOutput",
// "/PXI1Slot2/PFI8", DAQmx_Val_DoNotInvertPolarity); nierr =
// DAQmxCfgDigEdgeStartTrig(acqTaskHandle_, "/PXI1Slot2/PFI8",
// DAQmx_Val_Rising);
OScDev_RichError *err;

ss8str trigSrc;
ss8_init_copy_ch(&trigSrc, '/');
ss8_cat(&trigSrc, &GetImplData(device)->deviceName);
ss8_cat_cstr(&trigSrc, "/PFI12");
ss8_cat_cstr(&trigSrc, "/Ctr0InternalOutput");

err = CreateDAQmxError(DAQmxCfgDigEdgeStartTrig(
config->aiTask, ss8_cstr(&trigSrc), DAQmx_Val_Rising));
ss8_destroy(&trigSrc);
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