For C and Visual Basic users, the waveforms are all packed into a one-dimensional array that is declared using code such as the following:
// Set numWfms to 6, because the acquisition is for 2 channels times 3 records.
niScope_ActualNumWfms (vi, “0,1”, &numWfms);
// Fetch the coerced record length
niScope_ActualRecordLength (vi, &actualRecordLength);
// Declare memory for the waveforms and waveform info structs
wfm = malloc (sizeof (ViReal64) * actualRecordLength * numWfms);
wfmInfo = malloc (sizeof (struct niScope_wfmInfo) * numWfms);
The first waveform starts at wfm[0], the second waveform at wfm[actualRecordLength], and so on.
<http://zone.ni.com/reference/en-XX/help/370592Y-01/digitizers/fetching_multiple-record_acquisitions/>
// Set numWfms to 6, because the acquisition is for 2 channels times 3 records.
niScope_ActualNumWfms (vi, “0,1”, &numWfms);
// Fetch the coerced record length
niScope_ActualRecordLength (vi, &actualRecordLength);
// Declare memory for the waveforms and waveform info structs
wfm = malloc (sizeof (ViReal64) * actualRecordLength * numWfms);
wfmInfo = malloc (sizeof (struct niScope_wfmInfo) * numWfms);
The first waveform starts at wfm[0], the second waveform at wfm[actualRecordLength], and so on.
<http://zone.ni.com/reference/en-XX/help/370592Y-01/digitizers/fetching_multiple-record_acquisitions/>
解决方案
40
// Set numWfms to 6, because the acquisition is for 2 channels times 3 records.
//将numWfms设置为6，原因是是2条件通道，每条3个记录
// Fetch the coerced record length
//取得记录长度
// Declare memory for the waveforms and waveform info structs
//申请一块内存用于waveforms和waveform信息的结构体
//将numWfms设置为6，原因是是2条件通道，每条3个记录
// Fetch the coerced record length
//取得记录长度
// Declare memory for the waveforms and waveform info structs
//申请一块内存用于waveforms和waveform信息的结构体
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