LeCroy WavePro 7100A

X-Stream Operator’s Manual
WM-OM-E Rev I 227
double horOffset; // horizontal offset (in horizontal units, e.g. seconds)
// of the waveform
double horResolution; // horizontal resolution of the measurement system
//(also in horizontal units)
lecTimeStamp trigTime; // trigger time, units of 1ns since 00:00:00 on Jan 1st
// 2000, 64-bit unsigned integer
char verUnit[48]; // vertical units of the waveform ("V" for example)
char horUnit[48]; // horizontal units of the waveform ("s" for example)
};
#pragma pack(pop) // restore packing
//---------------------------------------------------------------------------------------
---
// The buffer size is 80MB (40,000,000 samples, stored as short integers) plus 0x1000
// bytes for the header.
const unsigned long HEADER_SIZE = 0x1000
const unsigned long MEM_MAP_FILE_SIZE = 80000000 + HEADER_SIZE; // = 40MSamples,
// or 80MBytes
int main(int argc, char* argv[])
{
// names based on 'FastWavePort1' name defined in Processor setup.
char szMapFileName[] = "FastWavePort1File";
char szMutexDataAvailableName[] = "FastWavePort1MutexDataAvailable";
char szMutexProcessingCompleteName[] = "FastWavePort1MutexProcessingComplete";
// Associate shared memory file handle value.
HANDLE m_hMMFile = CreateFileMapping ((HANDLE)0xffffffff, NULL, PAGE_READWRITE, 0,
MEM_MAP_FILE_SIZE, szMapFileName);
if(m_hMMFile == 0)
{
printf("Unable to create file mapping\n");
return 0;
}
// Map a view of this file for writing.
short *m_lpMMFile = (short *)MapViewOfFile (m_hMMFile, FILE_MAP_ALL_ACCESS, 0, 0, 0);
if(m_lpMMFile == 0)
{
printf("Unable to map view of file\n");
return 0;
}
// create/open events used for synchronization