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器件型号：AFE7950EVM 工具/软件：
您好：
我 有一个 Latte 和 TI_204C_IP 的工作配置,具有给定的 Latte 配置和 GTH 配置,那么现在我想把 带宽减半。 因此、我会将抽取率提高到12、然后将内插率提高到48、那么在 Latte 配置和 GTH 配置中、我需要进行哪些更改才能使其正常工作。
在这里 ,我附加的拿铁配置,这是工作的,以前.
'''
Validation : AFE79xx Library Version
v1.67, v1.74
Case RX TX FB CLK Notes
---- ----------------- ----------------- ----------------- ----------- ------------
1 245.76Msps, 24410 491.52Msps, 44210 491.52Msps, 22210 FADC=2949.12M DAC in interleaved mode
SerDes=9830.4Mbps SerDes=9830.4Mbps SerDes=9830.4Mbps FDAC=8847.36M
PLL0, NCO=3500M PLL0, NCO=3500M NCO=3500M REF=491.52M
2 245.76Msps, 24410 491.52Msps, 44210 491.52Msps, 22210 FADC=2949.12M DAC in straight mode
SerDes=9830.4Mbps SerDes=9830.4Mbps SerDes=9830.4Mbps FDAC=8847.36M
PLL0, NCO=3500M PLL0, NCO=3500M NCO=3500M REF=491.52M
'''
setupParams.skipFpga = 1
sysParams = AFE.systemParams
setupParams.fpgaRefClk = 245.76#184.32#
AFE.systemStatus.loadTrims = 1
sysParams.FRef = 491.52
sysParams.FadcRx = 2949.12
sysParams.FadcFb = 2949.12
sysParams.Fdac = 2949.12*4
sysParams.enableDacInterleavedMode = False #DAC interleave mode to save power consumption. Fs/2 - Fin spur occurs
sysParams.modeTdd = 0
# 0- Single TDD Pin for all Channels
# 1- Separate Control for 2T/2R/1F
# 2- Separate Control for 1T/1R/1F
sysParams.topLevelSystemMode = 'StaticTDDMode'
sysParams.RRFMode = 0 #4T4R2F FDD mode
sysParams.jesdSystemMode = [3,3]
#SystemMode 0: 2R1F-FDD ; rx1-rx2-fb-fb
#SystemMode 1: 1R1F-FDD ; rx1-rx1-fb-fb
#SystemMode 2: 2R-FDD ; rx1-rx1-rx2-rx2
#SystemMode 3: 1R ; rx1-rx1-rx1-rx1
#SystemMode 4: 1F ; fb-fb-fb-fb
#SystemMode 5: 1R1F-TDD ; rx1/fb-rx1/fb-rx1/fb-rx1/fb
#SystemMode 8: 1R1F-TDD 1R-FDD (FB-2Lanes)(RX1 RX2 interchanged) ; rx2/fb-rx2/fb-rx1-rx1
sysParams.jesdLoopbackEn = 0 #Make it 1 to Enable the JESDTX to JESDRX internal loopback
sysParams.LMFSHdRx = ["44210","44210","44210","44210"]
# The 2nd and 4th are valid only for jesdSystemMode values in (2,6,7,8). For other modes, select 4 converter modes for 1st and 3rd.
sysParams.LMFSHdFb = ["22210","22210"]
sysParams.LMFSHdTx = ["44210","44210","44210","44210"]
sysParams.jesdTxProtocol = [0,0]
sysParams.jesdRxProtocol = [0,0]
sysParams.serdesFirmware = True # If you want to lead any firmware, please speify the path here. Otherwise it will not write any firmware
sysParams.jesdTxLaneMux = [0,1,2,3,4,5,6,7]
# Enter which lanes you want in each location.
# Note that across 2T Mux is not possible in 0.5.
# For example, if you want to exchange the first two lines of each 2T, this should be [[1,0,2,3],[5,4,6,7]]
sysParams.serdesTxLanePolarity = [True, True, False, False, True, True, False, False]
sysParams.jesdRxLaneMux = [0,1,2,3,4,5,7,6]
# Enter which lanes you want in each location.
# Note that across 2R Mux is not possible in 0.5.
# For example, if you want to exchange the first two lines of each 2R, this should be [[1,0,2,3],[5,4,6,7]]
sysParams.serdesRxLanePolarity = [True, True, True, True, False, False, False, False]
sysParams.jesdRxRbd = [4, 4]
sysParams.rxJesdTxScr = [False]*4
sysParams.fbJesdTxScr = [False]*2
sysParams.jesdRxScr = [False]*4
sysParams.rxJesdTxK = [32]*4
sysParams.fbJesdTxK = [32]*2
sysParams.jesdRxK = [16]*4 #[32]*4
sysParams.txNco0 = [[3800,9500],
[3800,9500],
[3800,9500],
[3800,9500]]
sysParams.rxNco0 = [[3800,9500],
[3800,9500],
[3800,9500],
[3800,9500]]
sysParams.fbNco0 = [2500,2500] #[1800,1800] #FBA, FBC for NCO0
sysParams.fbNco1 = [2500,2500] #[1800,1800] #FBA, FBC for NCO1
sysParams.fbNco2 = [2500,2500] #[1800,1800] #FBA, FBC for NCO2
sysParams.fbNco3 = [2500,2500] #[1800,1800] #FBA, FBC for NCO3
sysParams.numBandsRx = [0]*4 # 0 for single, 1 for dual
sysParams.numBandsFb = [0,0]
sysParams.numBandsTx = [0,0,0,0]
sysParams.ddcFactorRx = [6]*4 # DDC decimation factor for RX A, B, C and D
sysParams.ddcFactorFb = [6]*2
sysParams.ducFactorTx = [24]*4
AFE.systemStatus.loadTrims =1
## The following parameters sets up the LMK04828 clocking schemes
lmkParams.pllEn = True#False
lmkParams.inputClk = 1474.56#737.28
lmkParams.sysrefFreq = 2949.12/1024
lmkParams.lmkFrefClk = True
## The following parameters sets up the register and macro dumps
logDumpInst.setFileName(ASTERIX_DIR+DEVICES_DIR+r"\Afe79xxPg1.txt")
logDumpInst.logFormat = 0x0f ## THIS FOR RTS
#logDumpInst.logFormat = 0x21 ## THIS IS FOR BALA SCRIPTS.
logDumpInst.rewriteFile = 1
logDumpInst.rewriteFileFormat4 = 1
device.optimizeWrites = 0
device.rawWriteLogEn = 1
lmk.rawWriteLogEn = 1
## The following parameters sets up the SYNCIN and SYNCOUT to interface with the TSW14J57
sysParams.jesdABLvdsSync = 0
sysParams.jesdCDLvdsSync = 0
sysParams.rxJesdTxSyncMux = [0,0,0,0]
sysParams.fbJesdTxSyncMux = [0,0]
sysParams.jesdRxSyncMux = [0,0,0,0] #[0,0,1,1]
sysParams.syncLoopBack = True
# ## The following parameters sets up the AGC
# sysParams.agcParams[0].agcMode = 1 ##internal AGC
# sysParams.agcParams[0].gpioRstEnable = 0 ##disable GPIO based reset to AGC detector
# sysParams.agcParams[0].atken = [0, 1, 0] ##enable big and small step attack
# sysParams.agcParams[0].decayen = [0,1,0] ##enable big and small step decay
# sysParams.agcParams[0].atksize = [2,1,0] ## bigs step = 2dB, small step = 1dB
# sysParams.agcParams[0].decaysize = [2,1,0] ##big step = 2dB, small step = 1dB
# sysParams.agcParams[0].atkthreshold = [-1, -2, -14] ##attack threshold
# sysParams.agcParams[0].decaythreshold = [-14, -6, -20] ##decay threshold
# sysParams.agcParams[0].atkwinlength = [170, 170] ## detector time constant expressed inn absolute time in ns.
# sysParams.agcParams[0].decaywinlength = 87380 ##detector time constant expressed in absolute time in ns. All detectors use the same value for decay time constant
# sysParams.agcParams[0].atkNumHitsAbs = [8,8] ##absolute number of times signal crosses threshold. These crossing are with respect to the FADC/8 clock
# sysParams.agcParams[0].decayNumHitsAbs = [100,100] ##absolute number of times signal crosses threshold. These crossing are with respect to the FADC/8 clock
# sysParams.agcParams[0].minDsaAttn = 0 ##minimum DSA attenuation used by AGC
# sysParams.agcParams[0].maxDsaAttn = 22 ##maximum DSA attenuation used by AGC
# sysParams.agcParams[0].totalGainRange = 22 ##total gain range used by ALC for gain compensation
# sysParams.agcParams[0].minAttnAlc = 0 ##minimum attenuation used by ALC for compensation when useMinAttnAgc = 0
# sysParams.agcParams[0].useMinAttnAgc = 1 ##enable ALC to use minimum attenuation from AGC for which compensation is required.
# sysParams.agcParams[0].alcEn = 1
# sysParams.agcParams[0].alcMode = 0 ##floating point DGC
# sysParams.agcParams[0].fltPtMode = 0 ##if exponent > 0, dont send MSB
# sysParams.agcParams[0].fltPtFmt = 1 ##3 bit exponent
## The following parameters sets up the GPIOs
sysParams.gpioMapping={
'H8': 'ADC_SYNC0',
'H7': 'DAC_SYNC0',
'N8': 'ADC_SYNC2',
'N7': 'ADC_SYNC3',
'H9': 'ADC_SYNC1',
'G9': 'DAC_SYNC1',
'N9': 'DAC_SYNC2',
'P9': 'DAC_SYNC3',
'P14': 'GLOBAL_PDN',
'K14': 'FBABTDD',
'R6': 'FBCDTDD',
'H15': ['TXATDD','TXBTDD'],
'V5': ['TXCTDD','TXDTDD'],
'E7': ['RXATDD','RXBTDD'],
'R15': ['RXCTDD','RXDTDD']}
#AFE.systemParams.papParams[0]['enable'] = True
#AFE.systemParams.papParams[1]['enable'] = True
#AFE.systemParams.papParams[2]['enable'] = True
#AFE.systemParams.papParams[3]['enable'] = True
sysParams.useSpiSysref = False
#setupParams.skipLmk = False
#AFE.LMK.lmkConfig()
sysParams.ncoFreqMode = "FCW" ##"1KHz" ##"FCW"
AFE.systemStatus.txChainDirectCtrl = 1
## Initiates LMK04828 and AFE79xx Bring-up
setupParams.skipLmk = False
AFE.initializeConfig()
lmkParams.sysrefFreq = AFE.systemStatus.sysrefFreq
lmkParams.lmkPulseSysrefMode = False
AFE.LMK.lmkConfig()
