Sets the specified event capture memory input channel and group number.
Gx3748EventCaptureSetSource (nHandle, nMemory, nGroup, nChannel, pnStatus)
Name |
Type |
Comments |
nHandle |
SHORT |
Handle to a GX3748 board. |
nMemory |
SHORT |
Group number as follows:0. GX3748_EVENT_CAPTURE_MEMORY0: memory number 0.1. GX3748_EVENT_CAPTURE_MEMORY1: memory number 1.2. GX3748_EVENT_CAPTURE_MEMORY2: memory number 2. |
nGroup |
SHORT |
Group number as follows: 0. GX3748_GROUP0: J1 input connector pins 2 to 17. 1. GX3748_GROUP1: J1 input connector pins 23 to 38. 2. GX3748_GROUP2: J1 input connector pins 44 to 59. |
nChannel |
SHORT |
Channel number in the group, channel numbers are 0-15: 0. GX3748_GROUP_CH0: channel 0 in the group. 1. GX3748_GROUP_CH1: channel 1 in the group. 2. GX3748_GROUP_CH2: channel 2 in the group. 3. GX3748_GROUP_CH3: channel 3 in the group. 4. GX3748_GROUP_CH4: channel 4 in the group. 5. GX3748_GROUP_CH5: channel 5 in the group. 6. GX3748_GROUP_CH6: channel 6 in the group. 7. GX3748_GROUP_CH7: channel 7 in the group. 8. GX3748_GROUP_CH8: channel 8 in the group. 9. GX3748_GROUP_CH9: channel 9 in the group. 10. GX3748_GROUP_CH10: channel 10 in the group. 11. GX3748_GROUP_CH11: channel 11 in the group. 12. GX3748_GROUP_CH12: channel 12 in the group. 13. GX3748_GROUP_CH13: channel 13 in the group. 14. GX3748_GROUP_CH14: channel 14 in the group. 15. GX3748_GROUP_CH15: channel 15 in the group. |
pnStatus |
PSHORT |
Returned status: 0 on success, negative number on failure. |
The function sets the specified event capture memory input channel and group number.
Group 0: 16 input channels (J1 input connector pins 2 to 17) detect if front channels are within a configurable voltage window, low and high voltage levels. The user can at time read back the channels comparison results using the Gx3748ComparatorsReadStates () API.
There are 3 independent event capture memories. Each memory can record input events from any of the channels’ groups by setting the memory source, Gx3748EventCaptureSetSource() API. The user can read any number of elements from any of the memories using the Gx3748EventCaptureReadMemory() API., as well as the current number of recorded elements by calling the Gx3748EventCaptureReadMemoryCount() API. Whenever the user changes the specified event capture memory input source (group and channel), the content of that memory and the recorded element counter will be cleared. Whenever the user changes the specified event capture memory mode, Gx3748EventCaptureSetMode() API, the content of that memory and the recorded element counter will be cleared. Whenever the user changes the specified event capture memory source Gx3748EventCaptureSetSource () API, the content of that memory and the recorded element counter will be cleared.
The following example sets event capture memory 0 source as Group 0 channel 0, sets mode to Continuous, sample rate to 1024uSec and returns the memory mode and sample rate:
SHORT nHandle, nStatus;
SHORT nMode, nGroup, nChannel;
DWORD dwSampeRate;
Gx3748EventCaptureGetSource (nHandle, GX3748_EVENT_CAPTURE_MEMORY0, GX3748_GROUP0, GX3748_GROUP_CH0, &nStatus);
Gx3748EventCaptureGetMode (nHandle, GX3748_EVENT_CAPTURE_MEMORY0, GX3748_EVENT_CAPTURE_MODE_CONTINUOUS, &nStatus);
Gx3748EventCaptureSetSamplingRate (nHandle, GX3748_EVENT_CAPTURE_SAMPLE_RATE_1024_USEC, &nStatus);
Gx3748EventCaptureGetSource (nHandle, GX3748_EVENT_CAPTURE_MEMORY0, &nGroup, &nChannel, &nStatus);
Gx3748EventCaptureSetMode (nHandle, GX3748_EVENT_CAPTURE_MEMORY0, &nMode, &nStatus);
Gx3748EventCaptureGetSamplingRate (nHandle, &dwSampleRate, &nStatus);
Gx3748EventCaptureClearMemory, Gx3748EventCaptureReadMemory, Gx3748EventCaptureReadMemoryCount, Gx3748EventCaptureReadTimestampCounter, Gx3748EventCaptureResetTimestampCounter, Gx3748EventCaptureSetMode, Gx3748EventCaptureSetSampleRate, Gx3748EventCaptureGetSource, Gx3748EventCaptureSetState, Gx3748EventCaptureSoftwareTrigger, Gx3748EventCaptureSetHoldoffTime, GxFpgaGetErrorString