IQ_Test_Demo

#include <stdio.h> #include <windows.h> #include <ansi_c.h> #define MAX_BUFFER_SIZE 1024 typedef int (*Init)(int,int); typedef int (*InitTester)(char *,int); typedef int (*SetVsg)(double,double,int,int,double); typedef int (*SetVsgModulation)(char*,int); typedef int (*EnableVsgRF)(int); typedef int (*SetFrameCnt)(int); typedef int (*LP_SetVsa)(double,double,int,double,double,double,double); typedef int (*VsaDataCapture)(double,int,double,int,int); typedef int (*Analyze80211ac)(char*, int,int,int,int,int,int,char*,int,int,double,double); typedef int (*Analyze80211n)(char*, char*,int,int,int,int,int,char*,int,int,double,double); typedef double (*GetScalarMeasurement)(char*,int); typedef int (*SetAnalysisParameterInteger) (char *, char *, int ); typedef int (*AnalyzeHT40Mask) (); typedef int (*AnalyzeVHT80Mask) (); typedef int (*AnalyzeFFT) (double , double , char *); typedef int (*GetVectorMeasurement) (char *, double[], double[], int ); void main() { HINSTANCE hinstLib; Init LabWindows_LP_Init; InitTester LabWindows_LP_InitTester; InitTester LabWindows_LP_GetVersion; SetVsg LabWindows_LP_SetVsg; SetVsgModulation LabWindows_LP_SetVsgModulation; EnableVsgRF LabWindows_LP_EnableVsgRF; SetFrameCnt LabWindows_LP_SetFrameCnt; LP_SetVsa LabWindows_LP_SetVsa; VsaDataCapture LabWindows_LP_VsaDataCapture; Analyze80211ac LabWindows_LP_Analyze80211ac; Analyze80211n LabWindows_LP_Analyze80211n; GetScalarMeasurement LabWindows_LP_GetScalarMeasurement; SetAnalysisParameterInteger LabWindows_LP_SetAnalysisParameterInteger; AnalyzeHT40Mask LabWindows_LP_AnalyzeHT40Mask; AnalyzeVHT80Mask LabWindows_LP_AnalyzeVHT80Mask; AnalyzeFFT LabWindows_LP_AnalyzeFFT; GetVectorMeasurement LabWindows_LP_GetVectorMeasurement; char buffer[4096]; double result; BOOL fFreeResult, fRunTimeLinkSuccess = FALSE; // Get a handle to the DLL module. hinstLib = LoadLibrary("IQmeasure.dll"); // If the handle is valid, try to get the function address. LabWindows_LP_Init = (Init) GetProcAddress(hinstLib, "LP_Init"); LabWindows_LP_InitTester = (InitTester) GetProcAddress(hinstLib, "LP_InitTester"); LabWindows_LP_GetVersion = (InitTester) GetProcAddress(hinstLib, "LP_GetVersion"); LabWindows_LP_SetVsg = (SetVsg) GetProcAddress(hinstLib, "LP_SetVsg"); LabWindows_LP_SetVsgModulation = (SetVsgModulation) GetProcAddress(hinstLib, "LP_SetVsgModulation"); LabWindows_LP_EnableVsgRF = (EnableVsgRF) GetProcAddress(hinstLib, "LP_EnableVsgRF"); LabWindows_LP_SetFrameCnt = (SetFrameCnt) GetProcAddress(hinstLib, "LP_SetFrameCnt"); LabWindows_LP_SetVsa = (LP_SetVsa) GetProcAddress(hinstLib, "LP_SetVsa"); LabWindows_LP_VsaDataCapture = (VsaDataCapture) GetProcAddress(hinstLib, "LP_VsaDataCapture"); LabWindows_LP_Analyze80211ac = (Analyze80211ac) GetProcAddress(hinstLib, "LP_Analyze80211ac"); LabWindows_LP_Analyze80211n = (Analyze80211n) GetProcAddress(hinstLib, "LP_Analyze80211n"); LabWindows_LP_GetScalarMeasurement = (GetScalarMeasurement) GetProcAddress(hinstLib, "LP_GetScalarMeasurement"); LabWindows_LP_GetVectorMeasurement = (GetVectorMeasurement) GetProcAddress(hinstLib, "LP_GetVectorMeasurement"); LabWindows_LP_SetAnalysisParameterInteger = (SetAnalysisParameterInteger) GetProcAddress(hinstLib, "LP_SetAnalysisParameterInteger"); LabWindows_LP_AnalyzeHT40Mask = (AnalyzeHT40Mask) GetProcAddress(hinstLib, "LP_AnalyzeHT40Mask"); LabWindows_LP_AnalyzeVHT80Mask = (AnalyzeVHT80Mask) GetProcAddress(hinstLib, "LP_AnalyzeVHT80Mask"); LabWindows_LP_AnalyzeFFT = (AnalyzeFFT) GetProcAddress(hinstLib, "LP_AnalyzeFFT"); //**************************************verify MASK********************************************************* double IQInterpolate( double yMax, double yMin, double xMax, double xMin, double xVal ) { return (yMin + ((yMax - yMin) / (xMax - xMin) * (xVal - xMin))); } BOOL IQ_VerifyMask (double *freqBuf, double *maskBuf, int maskBufCnt, int wifiMode) { //int maskTopStart = 999999, maskTopStop = 0; double peakPower = 0.0; double *maskWiFi = (double*)malloc(maskBufCnt*sizeof(double)); double firstRefFreq = freqBuf[0]/1000000; // to MHz double deltaFreq = (freqBuf[1]-freqBuf[0])/1000000; // to MHz double freqOffset[5]; double deltaMaskPwr[5]; int sectionIndex = 0; double currentFreq = 0, xVal = 0, yDeltaPwrdB = 0; // Initial the return results int VIOLATION_PERCENT = 0; /*--------------------------* * Looking for peak power * *--------------------------*/ int i1 = 0; int i2 = 0; int j = 0; double xMax = 0; double yMax = 0; double xMin = 0; double yMin = 0; for ( ;i1<maskBufCnt;i1++) { if ( maskBuf[i1]>peakPower ) { // store the current peak power and keep searching peakPower = maskBuf[i1]; } else { // keep searching... } } /*-----------------------* * Select default Mask * *-----------------------*/ if( 0 == wifiMode ){ //b freqOffset[0] = 0; deltaMaskPwr[0] = 0; freqOffset[1] = 11; deltaMaskPwr[1] = 0; freqOffset[2] = 11; deltaMaskPwr[2] = -30; freqOffset[3] = 22; deltaMaskPwr[3] = -30; freqOffset[4] = 22; deltaMaskPwr[4] = -50; } else if( 1 == wifiMode ){ //g freqOffset[0] = 0; deltaMaskPwr[0] = 0; freqOffset[1] = 9; deltaMaskPwr[1] = 0; freqOffset[2] = 11; deltaMaskPwr[2] = -20; freqOffset[3] = 20; deltaMaskPwr[3] = -28; freqOffset[4] = 30; deltaMaskPwr[4] = -40; }else if( 2 == wifiMode ){ //a freqOffset[0] = 0; deltaMaskPwr[0] = 0; freqOffset[1] = 9; deltaMaskPwr[1] = 0; freqOffset[2] = 11; deltaMaskPwr[2] = -20; freqOffset[3] = 20; deltaMaskPwr[3] = -28; freqOffset[4] = 30; deltaMaskPwr[4] = -40; }else if( 3 == wifiMode ){ //n freqOffset[0] = 0; deltaMaskPwr[0] = 0; freqOffset[1] = 9; deltaMaskPwr[1] = 0; freqOffset[2] = 11; deltaMaskPwr[2] = -20; freqOffset[3] = 20; deltaMaskPwr[3] = -28; freqOffset[4] = 30; deltaMaskPwr[4] = -45; }else{ return FALSE; } /*-------------------------------* * Construct the absolute Mask * *-------------------------------*/ currentFreq = firstRefFreq; // point to first one for (;i2<maskBufCnt;i2++) { xVal = fabs(currentFreq); sectionIndex = 0; // while ( dummy_Iter!=maskEnd_Iter ) // not end of mask vector for ( ; j < 5; ) { if ( xVal >= freqOffset[j] ) { j++; sectionIndex++; if ( j != 5 ) // not end of mask vector { if ( xVal < freqOffset[j] ) // find out the range { xMax = freqOffset[j]; yMax = deltaMaskPwr[j]; j--; sectionIndex--; xMin = freqOffset[j]; yMin = deltaMaskPwr[j]; yDeltaPwrdB = IQInterpolate( yMax, yMin, xMax, xMin, xVal ); break; } else { // not in this Mask range, continue and keep searching continue; } } else // already end of vector, thus direct assign mask_Iter->deltaMaskPwr to yDeltaPwrdB { j--; sectionIndex--; yDeltaPwrdB = deltaMaskPwr[j]; break; } } else { // no this case, because fabs(currentFreq) should >= 0 } } // Construct the absolute Mask and store into Array maskWiFi[i2] = peakPower + yDeltaPwrdB; /*---------------------------------* * Report Margin by each section * *---------------------------------*/ if ( sectionIndex==0 ) // This is the "TOP" of spectral, just skip this section. { // do nothing, moving to next frequency step } e