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ADRV9008-2 ORX at 491.42MSPS whit noise and DC

Category: Hardware
Product Number: ADRV9008-2

Hello,

I want to use ADRV9008-2 at 491.52 MSPS for TX and ORX.

I'm working on EVAL-TPG-ZYNQ3 + ADRV9008-2 W/PCBZ boards, with no-OS firmware.

If I look at the data received from ORX input I see some noise and a DC component quite high.

I already looked at "ADRV9008-2: problem with 491.52 MSPS profile" thread, but I see something that is different.

Looking at the spectrum I get without input signal (see figure) I note that at central frequencies the noise is higher than reported in that thread, and above all I have a DC component very high.


This is the configuration file I used (is what comes with no-OS release):

/**
 * \file adrv9009/profiles/tx_bw400_ir491p52_rx_bw200_or245p76_orx_bw400_or491p52_dc245p76/talise_config.c
 * \brief Contains Talise configuration settings for the Talise API
 *
 * Copyright 2015-2017 Analog Devices Inc.
 * Released under the AD9378-AD9379 API license, for more information see the "LICENSE.txt" file in this zip file.
 *
 * The top level structure taliseDevice_t talDevice uses keyword
 * extern to allow the application layer main() to have visibility
 * to these settings.
 *
 * This file may not be fully complete for the end user application and
 * may need to updated for AGC, GPIO, and DAC full scale settings.
 * To create a full initialisation routine, the user should also refer to the
 * Iron Python initialisation routine generated by the GUI, and also the Talise User Guide.
 *
 */

#include "talise_types.h"
#include "talise_config.h"
#include "talise_error.h"
#include "talise_agc.h"
#ifdef ADI_ZYNQ_PLATFORM
#include "zynq_platform.h"
#endif

int16_t txFirCoefs[20] = {32, -76, 124, -160, 176, -121, -145, 1031, -3015, 20138, -3015, 1031, -145, -121, 176, -160, 124, -76, 32, 0};

int16_t rxFirCoefs[24] = {-194, -715, 777, 907, -1163, -1890, 2240, 3306, -4068, -7024, 9205, 31112, 31112, 9205, -7024, -4068, 3306, 2240, -1890, -1163, 907, 777, -715, -194};

int16_t obsrxFirCoefs[24] = {-44, 22,-18, -1, 32, -75, 83, -81, -15, 354, -1940, 19672, -1940, 354, -15, -81, 83, -75, 32, -1, -18, 22, -44, 0};

#ifdef ADI_ZYNQ_PLATFORM /** < Insert Customer Platform HAL State Container here>*/
/*
 * Platform Layer SPI settings - this structure is specific to ADI's platform layer code.
 * User should replace with their own structure or settings for their hardware
 */
zynqSpiSettings_t spiDev1 = {
	.chipSelectIndex = 1,
	.writeBitPolarity = 0,
	.longInstructionWord = 1,
	.CPHA = 0,
	.CPOL = 0,
	.mode = 0,
	.spiClkFreq_Hz = 25000000
};

/*
 * Platform Layer settings - this structure is specific to ADI's platform layer code.
 * User should replace with their own structure or settings for their hardware
 * The structure is held in taliseDevice_t below as a void pointer, allowing
 * the customer to pass any information for their specific hardware down to the
 * hardware layer code.
 */
zynqAdiDev_t talDevHalInfo = {
	.devIndex = 1,
	.spiSettings = &spiDev1,
	.spiErrCode = 0,
	.timerErrCode = 0,
	.gpioErrCode = 0,
	.logLevel = ADIHAL_LOG_ALL
};
#endif
/**
 *  TalDevice a structure used by the Talise API to hold the platform hardware
 *  structure information, as well as an internal Talise API state container
 *  (devStateInfo) of runtime information used by the API.
 **/
taliseDevice_t talDevice = {
#ifdef ADI_ZYNQ_PLATFORM
	/* Void pointer of users platform HAL settings to pass to HAL layer calls
	 * Talise API does not use the devHalInfo member */
	.devHalInfo = &talDevHalInfo,
#else
	.devHalInfo = NULL,     /* < Insert Customer Platform HAL State Container here>*/
#endif
	/* devStateInfo is maintained internal to the Talise API, just create the memory */
	.devStateInfo = {0}

};

taliseInit_t talInit = {
	/* SPI settings */
	.spiSettings =
	{
		.MSBFirst            = 1,  /* 1 = MSBFirst, 0 = LSBFirst */
		.enSpiStreaming      = 0,  /* Not implemented in ADIs platform layer. SW feature to improve SPI throughput */
		.autoIncAddrUp       = 1,  /* Not implemented in ADIs platform layer. For SPI Streaming, set address increment direction. 1= next addr = addr+1, 0:addr=addr-1 */
		.fourWireMode        = 1,  /* 1: Use 4-wire SPI, 0: 3-wire SPI (SDIO pin is bidirectional). NOTE: ADI's FPGA platform always uses 4-wire mode */
		.cmosPadDrvStrength  = TAL_CMOSPAD_DRV_2X /* Drive strength of CMOS pads when used as outputs (SDIO, SDO, GP_INTERRUPT, GPIO 1, GPIO 0) */
	},

	/* Rx settings */
	.rx =
	{
		.rxProfile =
		{
			.rxFir =
			{
				.gain_dB = -6,                /* filter gain */
				.numFirCoefs = 24,            /* number of coefficients in the FIR filter */
				.coefs = &rxFirCoefs[0]
			},
			.rxFirDecimation = 2,            /* Rx FIR decimation (1,2,4) */
			.rxDec5Decimation = 4,            /* Decimation of Dec5 or Dec4 filter (5,4) */
			.rhb1Decimation = 1,            /* RX Half band 1 decimation (1 or 2) */
			.rxOutputRate_kHz = 245760,            /* Rx IQ data rate in kHz */
			.rfBandwidth_Hz = 200000000,    /* The Rx RF passband bandwidth for the profile */
			.rxBbf3dBCorner_kHz = 200000,    /* Rx BBF 3dB corner in kHz */
			.rxAdcProfile = {185, 141, 172, 90, 1280, 942, 1332, 90, 1368, 46, 1016, 19, 48, 48, 37, 208, 0, 0, 0, 0, 52, 0, 7, 6, 42, 0, 7, 6, 42, 0, 25, 27, 0, 0, 25, 27, 0, 0, 165, 44, 31, 905},            /* pointer to custom ADC profile */
			.rxDdcMode = TAL_RXDDC_BYPASS,   /* Rx DDC mode */
			.rxNcoShifterCfg =
			{
				.bandAInputBandWidth_kHz = 0,
				.bandAInputCenterFreq_kHz = 0,
				.bandANco1Freq_kHz = 0,
				.bandANco2Freq_kHz = 0,
				.bandBInputBandWidth_kHz = 0,
				.bandBInputCenterFreq_kHz = 0,
				.bandBNco1Freq_kHz = 0,
				.bandBNco2Freq_kHz = 0
			}
		},
		.framerSel = TAL_FRAMER_A,            /* Rx JESD204b framer configuration */
		.rxGainCtrl =
		{
			.gainMode = TAL_MGC,            /* taliserxGainMode_t gainMode */
			.rx1GainIndex = 255,            /* uint8_t rx1GainIndex */
			.rx2GainIndex = 255,            /* uint8_t rx2GainIndex */
			.rx1MaxGainIndex = 255,            /* uint8_t rx1MaxGainIndex */
			.rx1MinGainIndex = 195,            /* uint8_t rx1MinGainIndex */
			.rx2MaxGainIndex = 255,            /* uint8_t rx2MaxGainIndex */
			.rx2MinGainIndex = 195            /* uint8_t rx2MinGainIndex */
		},
		.rxChannels = TAL_RX1RX2,                /* The desired Rx Channels to enable during initialization */
	},


	/* Tx settings */
	.tx =
	{
		.txProfile =
		{
			.dacDiv = 1,                        /* The divider used to generate the DAC clock */
			.txFir =
			{
				.gain_dB = 0,                        /* filter gain */
				.numFirCoefs = 20,                    /* number of coefficients in the FIR filter */
				.coefs = &txFirCoefs[0]
			},
			.txFirInterpolation = 1,                    /* The Tx digital FIR filter interpolation (1,2,4) */
			.thb1Interpolation = 2,                    /* Tx Halfband1 filter interpolation (1,2) */
			.thb2Interpolation = 2,                    /* Tx Halfband2 filter interpolation (1,2)*/
			.thb3Interpolation = 1,                    /* Tx Halfband3 filter interpolation (1,2)*/
			.txInt5Interpolation = 1,                    /* Tx Int5 filter interpolation (1,5) */
			.txInputRate_kHz = 491520,                    /* Primary Signal BW */
			.primarySigBandwidth_Hz = 150000000,    /* The Rx RF passband bandwidth for the profile */
			.rfBandwidth_Hz = 400000000,            /* The Tx RF passband bandwidth for the profile */
			.txDac3dBCorner_kHz = 400000,                /* The DAC filter 3dB corner in kHz */
			.txBbf3dBCorner_kHz = 200000,                /* The BBF 3dB corner in kHz */
			.loopBackAdcProfile = {186, 148, 176, 90, 1280, 901, 1479, 225, 1401, 85, 995, 21, 48, 48, 36, 207, 0, 0, 0, 0, 52, 0, 0, 6, 24, 0, 0, 6, 24, 0, 25, 27, 0, 0, 25, 27, 0, 0, 165, 44, 15, 905}
		},
		.deframerSel = TAL_DEFRAMER_A,                    /* Talise JESD204b deframer config for the Tx data path */
		.txChannels = TAL_TX1TX2,                            /* The desired Tx channels to enable during initialization */
		.txAttenStepSize = TAL_TXATTEN_0P05_DB,            /* Tx Attenuation step size */
		.tx1Atten_mdB = 10000,                            /* Initial Tx1 Attenuation */
		.tx2Atten_mdB = 10000,                            /* Initial Tx2 Attenuation */
		.disTxDataIfPllUnlock = TAL_TXDIS_TX_RAMP_DOWN_TO_ZERO    /* Options to disable the transmit data when the RFPLL unlocks. */
	},


	/* ObsRx settings */
	.obsRx =
	{
		.orxProfile =
		{
			.rxFir =
			{
				.gain_dB = 6,                /* filter gain */
				.numFirCoefs = 24,            /* number of coefficients in the FIR filter */
				.coefs = &obsrxFirCoefs[0]
			},
			.rxFirDecimation = 1,            /* Rx FIR decimation (1,2,4) */
			.rxDec5Decimation = 4,            /* Decimation of Dec5 or Dec4 filter (5,4) */
			.rhb1Decimation = 1,            /* RX Half band 1 decimation (1 or 2) */
			.orxOutputRate_kHz = 491520,            /* Rx IQ data rate in kHz */
			.rfBandwidth_Hz = 400000000,    /* The Rx RF passband bandwidth for the profile */
			.rxBbf3dBCorner_kHz = 225000,    /* Rx BBF 3dB corner in kHz */
			.orxLowPassAdcProfile = {113, 171, 181, 90, 1280, 1737, 1574, 839, 1305, 297, 846, 74, 30, 41, 32, 193, 0, 0, 0, 0, 48, 0, 0, 0, 24, 0, 0, 0, 24, 0, 25, 27, 0, 0, 25, 27, 0, 0, 165, 44, 15, 905},
			.orxBandPassAdcProfile = {113, 171, 181, 90, 1280, 1737, 1574, 839, 1305, 297, 846, 74, 30, 41, 32, 193, 0, 0, 0, 0, 48, 0, 0, 0, 24, 0, 0, 0, 24, 0, 25, 27, 0, 0, 25, 27, 0, 0, 165, 44, 15, 905},
			.orxDdcMode = TAL_ORXDDC_DISABLED,   /* ORx DDC mode */
            .orxMergeFilter  = {-167, 419, -208, -498, 968, -320, -1273, 2154, -402, -4155, 9170, 21413}
		},
		.orxGainCtrl =
		{
			.gainMode = TAL_MGC,
			.orx1GainIndex = 255,
			.orx2GainIndex = 255,
			.orx1MaxGainIndex = 255,
			.orx1MinGainIndex = 195,
			.orx2MaxGainIndex = 255,
			.orx2MinGainIndex = 195
		},
		.framerSel = TAL_FRAMER_B,                /* ObsRx JESD204b framer configuration */
		.obsRxChannelsEnable = TAL_ORX1,        /* The desired ObsRx Channels to enable during initialization */
		.obsRxLoSource = TAL_OBSLO_RF_PLL                /* The ORx mixers can use the TX_PLL */
	},

	/* Digital Clock Settings */
	.clocks =
	{
		.deviceClock_kHz = 245760,            /* CLKPLL and device reference clock frequency in kHz */
		.clkPllVcoFreq_kHz = 9830400,        /* CLKPLL VCO frequency in kHz */
		.clkPllHsDiv = TAL_HSDIV_2P5,            /* CLKPLL high speed clock divider */
		.rfPllUseExternalLo = 0,                /* 1= Use external LO for RF PLL, 0 = use internal LO generation for RF PLL */
		.rfPllPhaseSyncMode = TAL_RFPLLMCS_NOSYNC                /* RFPLL MCS (Phase sync) mode */
	},

	/* JESD204B settings */
	.jesd204Settings =
	{
		/* Framer A settings */
		.framerA =
		{
			.bankId = 1,                    /* JESD204B Configuration Bank ID -extension to Device ID (Valid 0..15) */
			.deviceId = 0,                    /* JESD204B Configuration Device ID - link identification number. (Valid 0..255) */
			.lane0Id = 0,                    /* JESD204B Configuration starting Lane ID.  If more than one lane used, each lane will increment from the Lane0 ID. (Valid 0..31) */
			.M = 2,                            /* number of ADCs (0, 2, or 4) - 2 ADCs per receive chain */
			.K = 32,                        /* number of frames in a multiframe (default=32), F*K must be a multiple of 4. (F=2*M/numberOfLanes) */
			.F = 2,                            /* F (number of bytes per frame) */
			.Np = 16,                            /* Np (converter sample resolution) */
			.scramble = 1,                    /* scrambling off if framerScramble= 0, if framerScramble>0 scramble is enabled. */
			.externalSysref = 1,            /* 0=use internal SYSREF, 1= use external SYSREF */
			.serializerLanesEnabled = 0x03,    /* serializerLanesEnabled - bit per lane, [0] = Lane0 enabled, [1] = Lane1 enabled */
			.serializerLaneCrossbar = 0xE4,    /* serializerLaneCrossbar */
			.lmfcOffset = 31,                /* lmfcOffset - LMFC offset value for deterministic latency setting */
			.newSysrefOnRelink = 0,            /* newSysrefOnRelink */
			.syncbInSelect = 0,                /* syncbInSelect; */
			.overSample = 0,                    /* 1=overSample, 0=bitRepeat */
			.syncbInLvdsMode = 1,
			.syncbInLvdsPnInvert = 0,
			.enableManualLaneXbar = 0 /* 0=auto, 1=manual */
		},
		/* Framer B settings */
		.framerB =
		{
			.bankId = 0,                    /* JESD204B Configuration Bank ID -extension to Device ID (Valid 0..15) */
			.deviceId = 0,                    /* JESD204B Configuration Device ID - link identification number. (Valid 0..255) */
			.lane0Id = 0,                    /* JESD204B Configuration starting Lane ID.  If more than one lane used, each lane will increment from the Lane0 ID. (Valid 0..31) */
			.M = 2,                            /* number of ADCs (0, 2, or 4) - 2 ADCs per receive chain */
			.K = 32,                        /* number of frames in a multiframe (default=32), F*K must be a multiple of 4. (F=2*M/numberOfLanes) */
			.F = 2,                            /* F (number of bytes per frame) */
			.Np = 16,                            /* Np (converter sample resolution) */
			.scramble = 1,                    /* scrambling off if framerScramble= 0, if framerScramble>0 scramble is enabled. */
			.externalSysref = 1,            /* 0=use internal SYSREF, 1= use external SYSREF */
			.serializerLanesEnabled = 0x0C,    /* serializerLanesEnabled - bit per lane, [0] = Lane0 enabled, [1] = Lane1 enabled */
			.serializerLaneCrossbar = 0xE4,    /* serializerLaneCrossbar */
			.lmfcOffset = 31,                /* lmfcOffset - LMFC offset value for deterministic latency setting */
			.newSysrefOnRelink = 0,            /* newSysrefOnRelink */
			.syncbInSelect = 1,                /* syncbInSelect; */
			.overSample = 0,                    /* 1=overSample, 0=bitRepeat */
			.syncbInLvdsMode = 1,
			.syncbInLvdsPnInvert = 0,
			.enableManualLaneXbar = 0 /* 0=auto, 1=manual */
		},
		/* Deframer A settings */
		.deframerA =
		{
			.bankId = 0,                    /* bankId extension to Device ID (Valid 0..15) */
			.deviceId = 0,                    /* deviceId  link identification number. (Valid 0..255) */
			.lane0Id = 0,                    /* lane0Id Lane0 ID. (Valid 0..31) */
			.M = 4,                            /* M  number of DACss (0, 2, or 4) - 2 DACs per transmit chain */
			.K = 32,                        /* K  #frames in a multiframe (default=32), F*K=multiple of 4. (F=2*M/numberOfLanes) */
			.scramble = 1,                    /* scramble  scrambling off if scramble= 0 */
			.externalSysref = 1,            /* externalSysref  0= use internal SYSREF, 1= external SYSREF */
			.deserializerLanesEnabled = 0x0F,    /* deserializerLanesEnabled  bit per lane, [0] = Lane0 enabled */
			.deserializerLaneCrossbar = 0xE4,    /* deserializerLaneCrossbar */
			.lmfcOffset = 17,                /* lmfcOffset	 LMFC offset value to adjust deterministic latency */
			.newSysrefOnRelink = 0,            /* newSysrefOnRelink */
			.syncbOutSelect = 0,                /* SYNCBOUT0/1 select */
			.Np = 16,                /* Np (converter sample resolution) */
			.syncbOutLvdsMode = 1,
			.syncbOutLvdsPnInvert = 0,
			.syncbOutCmosSlewRate = 0,
			.syncbOutCmosDriveLevel = 0,
			.enableManualLaneXbar = 0 /* 0=auto, 1=manual */
		},
		/* Deframer B settings */
		.deframerB =
		{
			.bankId = 0,                    /* bankId extension to Device ID (Valid 0..15) */
			.deviceId = 0,                    /* deviceId  link identification number. (Valid 0..255) */
			.lane0Id = 0,                    /* lane0Id Lane0 ID. (Valid 0..31) */
			.M = 0,                            /* M  number of DACss (0, 2, or 4) - 2 DACs per transmit chain */
			.K = 32,                        /* K  #frames in a multiframe (default=32), F*K=multiple of 4. (F=2*M/numberOfLanes) */
			.scramble = 1,                    /* scramble  scrambling off if scramble= 0 */
			.externalSysref = 1,            /* externalSysref  0= use internal SYSREF, 1= external SYSREF */
			.deserializerLanesEnabled = 0x00,    /* deserializerLanesEnabled  bit per lane, [0] = Lane0 enabled */
			.deserializerLaneCrossbar = 0xE4,    /* deserializerLaneCrossbar */
			.lmfcOffset = 0,                /* lmfcOffset	 LMFC offset value to adjust deterministic latency */
			.newSysrefOnRelink = 0,            /* newSysrefOnRelink */
			.syncbOutSelect = 1,                /* SYNCBOUT0/1 select */
			.Np = 16,                /* Np (converter sample resolution) */
			.syncbOutLvdsMode = 1,
			.syncbOutLvdsPnInvert = 0,
			.syncbOutCmosSlewRate = 0,
			.syncbOutCmosDriveLevel = 0,
			.enableManualLaneXbar = 0 /* 0=auto, 1=manual */
		},
		.serAmplitude = 15,                    /* Serializer amplitude setting. Default = 15. Range is 0..15 */
		.serPreEmphasis = 1,                /* Serializer pre-emphasis setting. Default = 1 Range is 0..4 */
		.serInvertLanePolarity = 0,            /* Serializer Lane PN inversion select. Default = 0. Where, bit[0] = 1 will invert lane [0], bit[1] = 1 will invert lane 1, etc. */
		.desInvertLanePolarity = 0,            /* Deserializer Lane PN inversion select.  bit[0] = 1 Invert PN of Lane 0, bit[1] = Invert PN of Lane 1, etc */
		.desEqSetting = 1,                    /* Deserializer Equalizer setting. Applied to all deserializer lanes. Range is 0..4 */
		.sysrefLvdsMode = 1,                /* Use LVDS inputs on Talise for SYSREF */
		.sysrefLvdsPnInvert = 0              /*0= Do not PN invert SYSREF */
	}
};

//Only needs to be called if user wants to setup AGC parameters
static taliseAgcCfg_t rxAgcCtrl = {
	4,
	255,
	195,
	255,
	195,
	30720,  /* AGC gain update time in us (125us-250us - based on IQ data rate - set for 125us @ 245.76 Mhz) */
	10,
	10,
	16,
	0,
	1,
	0,
	0,
	0,
	1,
	31,
	246,
	4,
	1,          /*!<1- bit field to enable the multiple time constants in AGC loop for fast attack and fast recovery to max gain. */
	/* agcPower */
	{
		1,      /*!<1-bit field, enables the Rx power measurement block. */
		1,      /*!<1-bit field, allows using Rx PFIR for power measurement. */
		0,      /*!<1-bit field, allows to use the output of the second digital offset block in the Rx datapath for power measurement. */
		9,      /*!<AGC power measurement detect lower 0 threshold. Default = -12dBFS == 5, 7-bit register value where max = 0x7F, min = 0x00 */
		2,      /*!<AGC power measurement detect lower 1 threshold. Default = (offset) 4dB == 0, 4-bit register value where  max = 0xF, min = 0x00 */
		4,      /*!<AGC power measurement detect lower 0 recovery gain step. Default = 2dB - based on gain table step  size, 5-bit register value where max = 0x1F, min = 0x00 */
		4,      /*!<AGC power measurement detect lower 1 recovery gain step. Default = 4dB - based on gain table step size, 5-bit register value where max = 0x1F, min = 0x00 */
		5,      /*!< power measurement duration used by the decimated power block. Default = 0x05, 5-bit register value where max = 0x1F, min = 0x00 */
		5,      /*!<Allows power detection of data for a specific slice of the gain update counter. 16-bit register value (currently not used) */
		1,      /*!<Allows power detection of data for a specific slice of the gain update counter. 16-bit register value (currently not used) */
		5,      /*!<Allows power detection of data for a specific slice of the gain update counter. 16-bit register value (currently not used) */
		1,      /*!<Allows power detection of data for a specific slice of the gain update counter. 16-bit register value (currently not used) */
		2,      /*!<Default value should be 2*/
		0,
		0
	},
	/* agcPeak */
	{
		205,        /*!<1st update interval for the multiple time constant in AGC loop mode, Default:205. */
		2,          /*!<sets the 2nd update interval for the multiple time constant in AGC loop mode. Calculated as a multiple of  agcUnderRangeLowInterval  , Default: 4 */
		4,          /*!<sets the 3rd update interval for the multiple time constant in AGC loop mode. Calculated as a multiple of agcUnderRangeMidInterval and agcUnderRangeLowInterval, Default: 4 */
		39,         /*!<AGC APD high threshold. Default=0x1F, 6-bit register value where max=0x3F, min =0x00 */
		49,         /*!<AGC APD peak detect high threshold. default = 0x1F, 6-bit register value where max = 0x3F, min = 0x00.  Set to 3dB below apdHighThresh */
		23,         /*!<AGC APD peak detect low threshold. default = 3dB below high threshold, 6-bit register value where max =0x3F, min = 0x00 */
		19,         /*!<AGC APD peak detect low threshold. default = 3dB below high threshold, 6-bit register value where max = 0x3F, min = 0x00 . Set to 3dB below apdLowThresh  */
		6,          /*!<AGC APD peak detect upper threshold count. Default = 0x06 8-bit register value where max = 0xFF, min = 0x20  */
		3,          /*!<AGC APD peak detect lower threshold count. Default = 0x03, 8-bit register value where max = 0xFF, min = 0x00  */
		4,          /*!<AGC APD peak detect attack gain step. Default = 2dB step - based on gain table step size, 5-bit register  value, where max = 0x1F, min = 0x00  */
		2,          /*!<AGC APD gain index step size. Recommended to be same as hb2GainStepRecovery. Default = 0x00, 5-bit register value where max = 0x1F, min = 0x00  */
		1,          /*!<1-bit field, enables or disables the HB2 overload detector.  */
		1,          /*!<3-bit field. Sets the window of clock cycles (at the HB2 output rate) to meet the overload count. */
		1,          /*!<4-bit field. Sets the number of actual overloads required to trigger the overload signal.  */
		181,        /*!<AGC decimator output high threshold. Default = 0xB5, 8-bit register value where max = 0xFF, min = 0x00 */
		45,         /*!<AGC decimator output low threshold. Default = 0x80, 8-bit register value where max = 0xFF, min = 0x00 */
		90,         /*!<AGC decimator output low threshold. Default = 0x80, 8-bit register value where max = 0xFF, min = 0x00 */
		128,        /*!<AGC decimator output low threshold. Default = 0x80, 8-bit register value where max = 0xFF, min = 0x00 */
		6,          /*!<AGC HB2 output upper threshold count. Default = 0x06, 8-bit register value where max = 0xFF, min =  0x20 */
		3,          /*!<AGC HB2 output lower threshold count. Default = 0x03, 8-bit register value where max = 0xFF, min = 0x00 */
		2,          /*!<AGC decimator gain index step size. Default = 0x00, 5-bit register value where max = 0x1F, min = 0x00 */
		4,          /*!<AGC HB2 gain index step size, when the HB2 Low Overrange interval 0 triggers a programmable number  of times. Default = 0x08, 5-bit register value where max = 0x1F, min = 0x00 */
		8,          /*!<AGC HB2 gain index step size, when the HB2 Low Overrange interval 1 triggers a programmable number of times. Default = 0x04, 5-bit register value where max = 0x1F, min = 0x00 */
		4,          /*!<AGC decimator output attack gain step. Default = 2dB step - based on gain table step size, 5-bit register value, where max = 0x1F, min = 0x00 */
		1,
		0,
		0
	}
};

I've seen that also the ORX input chain has a DC correction block that may be bypassed, but I don't know how to activate it.

Thank you

Maurizio



deleted replicated file
[edited by: maurizio.sonzogni@abe.it at 2:42 PM (GMT -5) on 21 Feb 2024]

Thread Notes

Parents
  • can you please share the setup connection that you are using, did you connect the feedback signal to ORx? Please share these details to understand more about the issue.

    Use the below API to enable the ORX DC offset.

  • Thank you RR4,

    I'm using this environment:

    - FPGA project is the adrv9009/zc706 project from hdl repository. I've made a little modification sending data to TX channels from a block memory ROM, and looking for ORX data with an ILA.

    - Software project is the adrv9009 project from no-OS repository, the DMA_EXAMPLE option.

    I generate a single side-band sine waveform on both TX1 and TX2, and the spectrum in the above image is calculated from the captured data in ILA when the ORX1 input is not connected to any signal (the input has a 50 ohm clamp).

    I see the same behavior if I put the TX1 signal on ORX1 (via a 20 dB attenuator): in this case I see the correct signal plus the noise and DC component as in the above figure.

    I've tried to make a call to the suggested API: I've made the call to this API after the call to the TALISE_enableTrackingCals API, and before the calls to the TALISE_radioOn and the TALISE_setRxTxEnable APIs in the talise_setup function, but the result is very strange, as you can see in this picture:

    The signal goes from -32768 to 32767 and sometimes around tho 0 value but with some noise and some DC component.

    Is there something else to do when calling the TALISE_setDigDcOffsetEn API?

    Thank you

    Maurizio

  • The talise_config.c file I'm using is referred above.

    Also with the files provided in the no-OS release the behavior is the same.

    Thank you

    Maurizio

  • So Maurizio,

    I think the issue here is the following.

    TES generates 3 files, talise_config.c, talise_config.h and talise_config_ad9528.h.

    For (let's say) historical reasons, the way the adrv9009 project of no-OS is made, it ignores the last one of the above files and performs clocking initializations only for the 3 profiles that we support. So I'm thinking that the issues you are experiencing could be related to this, the fact that you try to use this particular ORX frequency that is not supported by the adrv9009 no-OS project as-is, it'd likely require modifications.

  • Thank you buha,

    so there is any chance that this modification will be available?

    In any case also if I compile the no-OS project with the supplied 491.52 MSPS profile commenting the line:
    #PROFILE = tx_bw100_ir122p88_rx_bw100_or122p88_orx_bw100_or122p88_dc122p88
    and uncommenting the line:
    PROFILE = tx_bw400_ir491p52_rx_bw200_or245p76_orx_bw400_or491p52_dc245p76
    in the src.mk file before launching the make command I get the same result.

    Is there something else to do in order to compile the no-OS project with the supplied 491.52MSPS profile?

    Thank you

    Maurizio



  • Is there something else to do in order to compile the no-OS project with the supplied 491.52MSPS profile?

    No, you're good, that's the only necessary step needed to change the profile. Just make sure to do 1. change profile, 2. make reset 3. make

    I get the same result.

    In that case we need to look into this because you are saying that the provided profile (so without generating anything new with TES) exhibits that behavior.

  • Actually, a correction to the above, when using the tx_bw400... profile, you also need to change this value:
    https://github.com/analogdevicesinc/no-OS/blob/4cd9e0d334ba6238e34b1e1547445b4557de7c09/projects/adrv9009/src/app/app_transceiver.c#L123

    from ADXCVR_SYS_CLK_CPLL to ADXCVR_SYS_CLK_QPLL0

    I don't know all the details but I think it's impossible to achieve the profile datarate with the CPLL, only QPLL can provide that kind of frequency.

  • Yes, I've already done this correction, otherwise the program issues the error that CPLL cannot provide that frequency.

  • One more question here, did you happen to try with linux and the same profile ? I searched the thread and saw a linux log above so I guess you tried but it's not clear to me whether the behavior is the same or not.

  • What is the Linux log you mention?

    I have tried only with the no-OS release and with the TES program with the supplied SD card release.

  • Search this thread for "The boot log of the board with the SD card is:", it's from one of your replies where immediately after you pasted a linux boot log from the SD card. That is a linux boot log, not a no-OS boot log. There is no way that card contains a no-OS release.

  • Yes, I used the pre-compiled solution on the SD card and that is the log I see when using the SD card. You can find the results of this arrangement with the same profile above in this thread in my post on March 14 2024, 11:39 AM

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