#the space between frequencies should be the tone freq resolution
freqList = np.arange(startFreq,endFreq+dacFreqResolution, dacFreqResolution)
nFreqs = len(freqList)
freqListMHz = freqList/MHz
fftResponses = np.zeros(nFreqs)
ddcResponses = np.zeros(nFreqs)
rawFftResponses = np.zeros(nFreqs)
rawDdcResponses = np.zeros(nFreqs)
quantFreqList = np.zeros(nFreqs)
for iFreq,freq in enumerate(freqList):
print 'freq {} of {}: {} MHz'.format(iFreq,nFreqs,freq/1.e6)
waveFreqs = [freq]
#next load up the signal LUT for the given frequency
loadDict = loadWaveToMem(fpga,waveFreqs=waveFreqs,phases=None,sampleRate=sampleRate,nSamplesPerCycle=nSamplesPerCycle,nBytesPerMemSample=nBytesPerMemSample,nBitsPerSamplePair=nBitsPerSamplePair,memNames = memNames,nSamples=nSamples,memType=memType,dynamicRange=dynamicRange)
quantFreqList[iFreq] = loadDict['quantizedFreqs'][0]
fpga.write_int('sel_bch',selChanIndex)
snapDict = snapDdc(bSnapAll=False,selBinIndex=selBinIndex,selChanIndex=selChanIndex,selChanStream=selChanStream,ddsAddrTrig=ddsAddrTrig)
ddcResponses[iFreq] = np.mean(np.abs(snapDict['ddcOut']))
rawDdcResponses[iFreq] = np.abs(snapDict['ddcOut'])[0]
fftResponses[iFreq] = np.mean(np.abs(snapDict['bin']))
rawFftResponses[iFreq] = np.abs(snapDict['bin'])[0]
dbFftResponse = 20.*np.log10(fftResponses)
dbRawFftResponse = 20.*np.log10(rawFftResponses)
dbDdcResponse = 20.*np.log10(ddcResponses)
dbRawDdcResponse = 20.*np.log10(rawDdcResponses)
#print freqList
# print 'freq range',freqList[0]/1.e6,freqList[-1]/1.e6
# print 'freq step',(freqList[1]-freqList[0])/1.e6
avgs = []
responseVals = []
oflws = []
for iFreq,freq in enumerate(freqList):
if iFreq % 25 == 0:
print iFreq
if memType == 'qdr':
fpga.write_int(startRegisterName,0) #halt reading from mem while writing
elif memType == 'bram':
fpga.write_int(startRegisterName,1) #halt firmware writing from mem while writing
loadWaveToMem(fpga,waveFreqs=[freq],phases=[0.],sampleRate=sampleRate,nSamplesPerCycle=nSamplesPerCycle,nSamples=nSamples,nBytesPerMemSample=nBytesPerQdrSample,nBitsPerSamplePair=nBitsPerSamplePair,memNames = qdrMemNames,dynamicRange=dynamicRange,memType=memType)
time.sleep(.1)
fpga.write_int(startRegisterName,1) #start reading from mem
snapshotBin.arm()
snapshotOverflow.arm()
time.sleep(.1)
fpga.write_int('snap_fft_trig',1)#trigger snapshots
time.sleep(.05)
binData = snapshotBin.read(timeout=10)['data']
i0 = np.array(binData['i0'])
i1 = np.array(binData['i1'])
q0 = np.array(binData['q0'])
q1 = np.array(binData['q1'])