[参考译文] DAC38RF89：DUC 后的输出相对于 NCO 频率。对称

福克斯

混合过程要求输入为复正交。 必须将 I + Q 信号馈送到单个 DUC 中才能进行正确的升频转换。 仅输入 I 或 Q 会导致实际混合、从而产生双边带。

－Kang

Kang

在我的应用过程中、IQ 是同时输入的。 I 信号和 Q 信号都是4位信号。 如图33所示、我无法使用单次升频转换。 我理解它是单独对 I 信号和 Q 信号进行上变频。 然后添加向上转换的 IQ 信号。 这种情况是否正常？

此致、

福克斯

Kang

在多次复位实验之后、输出在大多数时间都是正常的。
几次重置后、将发生前面所述的频谱对称现象。
您能提供更多说明

此致、

福克斯

您好！

您可能只需要重置 NCO。 有关详细信息、请参阅以下链接

https://e2e.ti.com/support/rf-microwave-group/rf-microwave/f/rf-microwave-forum/937371/dac38rf89-how-to-sync-nco-in-the-path-ab-of-dac-a-and-nco-in-the-path-ab-of-dac-b?tisearch=e2e-sitesearch&keymatch=dac38rf89%252520nco%252520sync#

仍然不奏效

您好！  

请提供更多详细信息。 请参阅工作与不工作之间的频谱图以及有关设置的更多详细信息。  

如上图所示、DAC 的 DDS 输入为500MHz。 NCO 频率为1.2GHz。 单通道 DAC 的采样率为4.8GSPS。 SYSREF 频率为5MHz。 输入数据格式为 IQ。 多次复位后、有时频谱是正确的、有时是错误的。 希望您能为这个问题提供一些启发

您好！

我向 FPGA 的 ILA 观测接口添加了 IQ 信号并导出了 csv 数据。 高速数据转换器软件会分析 csv 数据、以证明 I-way 数据和 Q-way 数据是完美的正交数据。 我仍然怀疑 nco1和 nco2相位之间的差异导致了这个问题。奇怪的是、问题有时出现、有时消失而不修改任何配置。与 NCO 同步相关的寄存器已经被修改了几次。 FPGA 生成的 IQ 数据的相位也得到保证。 仍然无法保证不会发生错误。 也许我们还可以了解其他一些原因吗？

福克斯

将0x27 8888和0x28 0882 DDS 频率设置为500MHz、NCO 频率设置为1.2GHz。无论复位次数是多少、此现象都有说明

请发送您的 DAC 寄存器设置。  

此外、

在禁用 NCO 和混频器的情况下重复复位测试、以验证来自 FPGA 的数据是否没有问题通过 DAC。

Jim

`define DA38RF89
//`define SERDES_PLL_SOURCED_BY_PLL

//--for 41121 and 82121 tx2:
//--CLOCK PHASES=01,INTERP=00001,CLKJESD_DIV=0001,CLKJESD_OUT_DIV=0001;
//--L_M1=00011,F_M1=00,M_M1=00,S_M1=00001,HD=1,N_M1/N'_M1=01111

//--RESET config,
//--reset SPI registers;turn on the alarm pin;turn on the dividers;
//cause fuse autoload;set ONE_DAC_ONLY and ONE_LINK_ONLY;
//puts DAC1 and DAC2 into intilization state
`define     ADDR_000         7'h00
//`define     DATA_000         16'h7060 
`define     DATA_000         16'h7800

//--vendor ID and Chip Version register,check if AUTOLOAD_DONE is asserted
`define     ADDR_FFF         7'h7f 
`define     DATA_FFF         16'h8009  
                                     

//--page set register, set general configuration registers
`define     ADDR_001         7'h09 
`define     DATA_001         16'h0000

//--IO_CONFIG
//--SYSREF align to R1 and R3 count---READ ONLY
`define     ADDR_002         7'h78 
`define     DATA_002         16'h0000

//--SYSREF phase count 1 and 2--------READ ONLY
`define     ADDR_003         7'h79 
`define     DATA_003         16'h0000

//--SYSREF phase count 3 and 4--------READ ONLY
`define     ADDR_004         7'h7a 
`define     DATA_004         16'h0000

//--disable 4-pin SPI;disable analog test
`define     ADDR_005         7'h01 
`define     DATA_005         16'h3000

//--temperature sensor and pll loop voltage, read only
`define     ADDR_006         7'h06 
`define     DATA_006         16'h0000





//-------Miscellaneous Configuration Registers--------//

//--page set register, set DIG_MISC
`define     ADDR_007         7'h09 
`define     DATA_007         16'h0004

//--clock configuration register
//sysref is used to sync clock divider or not,should be disabled after intial syncing----------IMPORTANT
//div4 clock;dummy data generation enable;quarter rate clock;
`define     ADDR_008         7'h0a 
`define     DATA_008         16'h7c03
//`define     DATA_008         16'hfc03

//--sleep config
//many sleep enable
`define     ADDR_009         7'h0b 
`define     DATA_009         16'h0000

//--divided output clock configuration
//clk_tx is not connected; 
`define     ADDR_00A         7'h0c 
//`define     DATA_00A         16'h2001    //CAUTION:select external reference(sysref?)
`define     DATA_00A         16'ha002

//--DAC fullscale current register
//10mA + 2mA*[15:12]
`define     ADDR_00B         7'h0d 
`define     DATA_00B         16'hF000

//--internal SYSREF generator register
//LCM:least common multiple,page126,9.2.4
`define     ADDR_00C         7'h10 
//`define     DATA_00C         16'h0001
`define     DATA_00C         16'h0000

//--counter for internal SYSREF generator
//LCMGEN_DIV
`define     ADDR_00D         7'h11 
`define     DATA_00D         16'h0000

//--SPI SYSREF for internal SYSREF generator
//LCMGEN_DIV
`define     ADDR_00E         7'h12 
`define     DATA_00E         16'h0000

//--digital test signals register
//select the signal which comes out of the ALARM pin 
`define     ADDR_00F         7'h1B 
`define     DATA_00F         16'h0200

//--sleep pin control register
//control the routing of SLEEP pin to different blocks
`define     ADDR_010         7'h23 
`define     DATA_010         16'hffff

//--SYSREF capture circuit control register
//sysref phase window
//sysref align delay
//sysref status enable
//sysref align sysnc
//sysref align bypass
`define     ADDR_011         7'h24 
`define     DATA_011         16'hd800
`define     DATA_011_DIST    16'hd800

//--clock input and PLL configuration
//extclk diff or se select
//pll reset
//pll N divider is synced by SYSREF or not
//DACCLK_P/N is used as reference to PLL or directly as DAC clock
//PLL cp sleep
//PLL N divider = 1
//PLL lock detector sensitivity
`define     ADDR_012         7'h31   //PLL_ENA=1
`define     DATA_012         16'h0400

//PLL configuration 1 register
//VCO feedback divider---M divider = 4,total divider = 16;4.8GHz/16 = 300MHz refin
//not used in external CLK mode
//VCO amplitude
`define     ADDR_013         7'h32 
`define     DATA_013         16'h0308

//PLL configuration 2 register
//PLL vco select--select VCO1
//vco freq range---need further attention
//charge pump current,0x6 fro M=4
`define     ADDR_014         7'h33 
`define     DATA_014         16'h2A18

//LVDS output configuration register
//LVDS output current;
//SYNC0~ 	powerdown;
//charge pump current
`define     ADDR_015         7'h34 
`define     DATA_015         16'h0000      //CAUTION! [8]=SYNC0 LVDS powerdown

//Fuse Farm clock divider register
`define     ADDR_016         7'h35 
`define     DATA_016         16'h0018

//SERDES clock configuration register
//SERDES_CLK_SEL = DACCLK pad
//SERDES_REFCLK_DIV = 0,divider = 1; 
//PREDIVIDER = 1;
//serdes_refclk = 300MHz for DACCLK pad,600MHz for PLL
//16'h0000 for 300MHz DACCLK pad,300MHz/1(SERDES_REFCLK_PREDIV)/1(SERDES_REFCLK_DIV)=300MHz
//16'hF802 for 600MHz PLL clk,4.8GHz/8=600MHz
`define     ADDR_017         7'h3B 
`ifdef SERDES_PLL_SOURCED_BY_PLL
`define     DATA_017         16'hb800
`else
`define     DATA_017         16'h0000
`endif

//SERDES clock configuration register
//ENDIVCLK = 1;
//CLKBYPASS = 0;
//LB=00;SLEEPPLL=0;
//VRANGE=0,for output > 2.17GHz
//MPY=8'h51,multiplier = 10, refclk 200MHz × 10 = 3GHz,for refclk from PAD
//MPY=8'h28,multiplier = 5,  refclk 600MHz × 5  = 3GHz,for refclk from PLL
`define     ADDR_018         7'h3C 
`ifdef SERDES_PLL_SOURCED_BY_PLL
  `define     DATA_018         16'h8029
`else
  `define     DATA_018         16'h8051
`endif

//SERDES configuration 1 register
//TESTPATT = 000;
//enable serdes offset compensation
//equalizer hold;serdes equalizer
//CDR settings
`define     ADDR_019         7'h3D 
`define     DATA_019         16'h0088

//SERDES configuration 2 register
//loss detection enable;
//comma alignment enable;
//RATE = 00,PLL_OUT = 0.25Lane_rate = 3GHz
//BUS_WIDTH = 16bit;
//sleeprx = 0;
`define     ADDR_01A         7'h3E
//`define     DATA_01A         16'h0905 
`define     DATA_01A         16'h0909 

//SERDES polarity control register
`define     ADDR_01B         7'h3F 
`define     DATA_01B         16'h0000

//JESD204B SYNCB OUTPUT register
`define     ADDR_01C         7'h76 
`define     DATA_01C         16'h0000

//ALARM SD LOSDET 
`define     ADDR_01D         7'h04 
`define     DATA_01D         16'h0000

//JESD204B SYNCB OUTPUT register
`define     ADDR_01E         7'h76 
`define     DATA_01E         16'h0000

//JESD204B SYNCB OUTPUT register
`define     ADDR_01F         7'h76 
`define     DATA_01F         16'h0000











//-------multi-DUC1 Configuration Registers--------//
//--page set register, set multi-DUC1
`define     ADDR_200         7'h09 
`define     DATA_200         16'h0001

//--multi-DUC configuration(PAP,interpolation)
`define     ADDR_201         7'h0A 
//`define     DATA_021         16'h0040    //CAUTION! alarm can zero the data out of JESD block
`define     DATA_201         16'h6110

//--multi-DUC configuration(Mixers) 
//--NCOAB_ENA=1
`define     ADDR_202         7'h0C 
`define     DATA_202         16'h2622

//--JESD FIFO control
`define     ADDR_203         7'h0D 
`define     DATA_203         16'h0000

//--alarm mask 1 register
`define     ADDR_204         7'h0E 
`define     DATA_204         16'h00ff

//--alarm mask 2 register
`define     ADDR_205         7'h0f 
`define     DATA_205         16'hffff

//--alarm mask 3 register
//LCMGEN_DIV
`define     ADDR_206         7'h10 
`define     DATA_206         16'hffff

//--alarm mask 4 register
`define     ADDR_207         7'h11 
`define     DATA_207         16'hffff

//--JESD Lane skew(read-only)
`define     ADDR_208         7'h12 
`define     DATA_208         16'h0000

//--CMIX configuration
//--coarse mixer disabled
`define     ADDR_209         7'h17 
`define     DATA_209         16'h0000

//--SYSREF capture circuit control register
//output delay,outsum_sel
//--bit0 and bit2 are set
`define     ADDR_20A         7'h19 
`define     DATA_20A         16'h0005

//--sysref use for clock divider--set [6:4] to 3'b000 for startup sequence in datasheet P124
`define     ADDR_20B         7'h24 
`define     DATA_20B         16'h0000

//serdes clock control
//CLKJESD_DIV,CLKJESD_OUT_DIV,values from table 38
`define     ADDR_20C         7'h25 
`define     DATA_20C         16'h1100

//sync source control 1 register
`define     ADDR_20D         7'h27 
`define     DATA_20D         16'h4848

//sync source control 2 register
`define     ADDR_20E         7'h28 
`define     DATA_20E         16'h0330

`define     ADDR_20F         7'h29 
`define     DATA_20F         16'h0000

`define     ADDR_210         7'h2A 
`define     DATA_210         16'h0000 

`define     ADDR_211         7'h2B 
`define     DATA_211         16'h0000

`define     ADDR_212         7'h2C 
`define     DATA_212         16'h0000

`define     ADDR_213         7'h2D 
`define     DATA_213         16'h1FFF

`define     ADDR_214         7'h2E 
`define     DATA_214         16'h1FFF

//DAC SPI configuration register
`define     ADDR_215         7'h2F
`define     DATA_215         16'h0000

//DAC SPI constant register
`define     ADDR_216         7'h30
`define     DATA_216         16'h0000

//Gain for path AB register
`define     ADDR_217         7'h32
`define     DATA_217         16'h8800

//Gain for path CD register
`define     ADDR_218         7'h33
`define     DATA_218         16'h0400

//JESD error counter(read-only)
`define     ADDR_219         7'h41
`define     DATA_219         16'h0000

//JESD subclass register
`define     ADDR_21A         7'h48
`define     DATA_21A         16'h31c3

//JESD lane enable register
//enable the lanes; 
//reperting D21.5/K28.5/ILAS verify for test purpose
`define     ADDR_21B         7'h4A
`define     DATA_21B         16'h0f01

//JESD RBD buffer and frame octets(F) register
//F is set to 1 here for LMFSH=82121
`define     ADDR_21C         7'h4B 
`define     DATA_21C         16'h1300

//JESD K and L parameters
//K is set to 20 and L is set to 4 here
`define     ADDR_21D         7'h4c
`define     DATA_21D         16'h1303

//JESD M and S parameters
//M is set to 1 and S is set to 2 here
`define     ADDR_21E         7'h4d 
`define     DATA_21E         16'h0001

//JESD N,HD and SCR parameters
//N' is set to 16,HD is set to 0,N is set to 16 here
`define     ADDR_21F         7'h4e 
`define     DATA_21F         16'h0F4F

//JESD character match and other register
`define     ADDR_220         7'h4f
`define     DATA_220         16'h1c60

//JESD link configuration data register
`define     ADDR_221         7'h50
`define     DATA_221         16'h0000

//JESD sync request register
`define     ADDR_222         7'h51
`define     DATA_222         16'h00FF

//JESD error output register
`define     ADDR_223         7'h52
`define     DATA_223         16'h00FF

//JESD ILA check 1 register
//ILA_M = 1 and ILA_F = 3
`define     ADDR_224         7'h53
`define     DATA_224         16'h0100

//JESD ILA check 2 register
//ILA_HD = 0,ILA_L = 4,ILA_K=20,ILA_S=8
`define     ADDR_225         7'h54
`define     DATA_225         16'h8e60

//JESD sysref mode register----[2:0]==3'b000 for start up sequence in datasheet P124
`define     ADDR_226         7'h5C
`define     DATA_226         16'h0000

//--NCO freq path AB reg1
`define     ADDR_227         7'h1E 
`define     DATA_227         16'h0000

//--NCO freq path AB reg2
`define     ADDR_228         7'h1F 
`define     DATA_228         16'h0000

//--NCO freq path AB reg3         ------fs/4
`define     ADDR_229         7'h20 
`define     DATA_229         16'h4000

//--NCO freq path CD reg1
`define     ADDR_22A         7'h21 
`define     DATA_22A         16'h0000

//--NCO freq path CD reg2
`define     ADDR_22B         7'h22 
`define     DATA_22B         16'h0000

//--NCO freq path CD reg3         ------fs/4
`define     ADDR_22C         7'h23 
`define     DATA_22C         16'h0000

//--NCO phase path AB(autosync)   ------0 degree
`define     ADDR_22D         7'h1C 
`define     DATA_22D         16'h0000

//--NCO phase path CD(autosync)
`define     ADDR_22E         7'h1D 
`define     DATA_22E         16'h0000

//--CROSSBAR 1,lane mapping
`define     ADDR_22F         7'h5F 
`define     DATA_22F         16'h0123

//--CROSSBAR 2,lane mapping
`define     ADDR_230         7'h60 
`define     DATA_230         16'h4567



//-------multi-DUC2 Configuration Registers--------//
//--page set register, set multi-DUC2
`define      ADDR_300         7'h09 
`define      DATA_300         16'h0002

//--multi-DUC configuration(PAP,interpolation)
`define      ADDR_301         7'h0A 
//`define     DATA_021         16'h0040    //CAUTION! alarm can zero the data out of JESD block
`define      DATA_301         16'h6110

//--multi-DUC configuration(Mixers) 
//--NCOAB_ENA=1
`define      ADDR_302         7'h0C 
`define      DATA_302         16'h2622

//--JESD FIFO control
`define      ADDR_303         7'h0D 
`define      DATA_303         16'h0000

//--alarm mask 1 register
`define      ADDR_304         7'h0E 
`define      DATA_304         16'h00ff

//--alarm mask 2 register
`define      ADDR_305         7'h0f 
`define      DATA_305         16'hffff

//--alarm mask 3 register
//LCMGEN_DIV
`define      ADDR_306         7'h10 
`define      DATA_306         16'hffff

//--alarm mask 4 register
`define      ADDR_307         7'h11 
`define      DATA_307         16'hffff

//--JESD Lane skew(read-only)
`define      ADDR_308         7'h12 
`define      DATA_308         16'h0000

//--CMIX configuration
//--coarse mixer disabled
`define      ADDR_309         7'h17 
`define      DATA_309         16'h0000

//--SYSREF capture circuit control register
//output delay,outsum_sel
//--bit0 and bit2 are set
`define      ADDR_30A         7'h19 
`define      DATA_30A         16'h0000

//--sysref use for clock divider--set [6:4] to 3'b000 for startup sequence in datasheet P124
`define      ADDR_30B         7'h24 
`define      DATA_30B         16'h0000

//serdes clock control
//CLKJESD_DIV,CLKJESD_OUT_DIV,values from table 38
`define      ADDR_30C         7'h25 
`define      DATA_30C         16'h1100

//sync source control 1 register
`define      ADDR_30D         7'h27 
`define      DATA_30D         16'h4848

//sync source control 2 register
`define      ADDR_30E         7'h28 
`define      DATA_30E         16'h0330

`define      ADDR_30F         7'h29 
`define      DATA_30F         16'h0000

`define      ADDR_310         7'h2A 
`define      DATA_310         16'h0000 

`define      ADDR_311         7'h2B 
`define      DATA_311         16'h0000

`define      ADDR_312         7'h2C 
`define      DATA_312         16'h0000

`define      ADDR_313         7'h2D 
`define      DATA_313         16'h1FFF

`define      ADDR_314         7'h2E 
`define      DATA_314         16'h1FFF

//DAC SPI configuration register
`define      ADDR_315         7'h2F
`define      DATA_315         16'h0000

//DAC SPI constant register
`define      ADDR_316         7'h30
`define      DATA_316         16'h0000

//Gain for path AB register
`define      ADDR_317         7'h32
`define      DATA_317         16'h8800

//Gain for path CD register
`define      ADDR_318         7'h33
`define      DATA_318         16'h0400

//JESD error counter(read-only)
`define      ADDR_319         7'h41
`define      DATA_319         16'h0000

//JESD subclass register
`define      ADDR_31A         7'h48
`define      DATA_31A         16'h31c3

//JESD lane enable register
//enable the lanes; 
//reperting D21.5/K28.5/ILAS verify for test purpose
`define      ADDR_31B         7'h4A
`define      DATA_31B         16'hF001

//JESD RBD buffer and frame octets(F) register
//F is set to 2 here for LMFSH=82380
`define      ADDR_31C         7'h4B 
`define      DATA_31C         16'h1300

//JESD K and L parameters
//K is set to 20 and L is set to 3 here
`define      ADDR_31D         7'h4c
`define      DATA_31D         16'h1303

//JESD M and S parameters
//M is set to 1 and S is set to 2 here
`define      ADDR_31E         7'h4d 
`define      DATA_31E         16'h0001

//JESD N,HD and SCR parameters
//N' is set to 16,HD is set to 0,N is set to 16 here
`define      ADDR_31F         7'h4e 
`define      DATA_31F         16'h0F4F

//JESD character match and other register
`define      ADDR_320         7'h4f
`define      DATA_320         16'h1c60

//JESD link configuration data register
`define      ADDR_321         7'h50
`define      DATA_321         16'h0000

//JESD sync request register
`define      ADDR_322         7'h51
`define      DATA_322         16'h00FF

//JESD error output register
`define      ADDR_323         7'h52
`define      DATA_323         16'h00FF

//JESD ILA check 1 register
//ILA_M = 1 and ILA_F = 3
`define      ADDR_324         7'h53
`define      DATA_324         16'h0100

//JESD ILA check 2 register
//ILA_HD = 0,ILA_L = 4,ILA_K=20,ILA_S=8
`define      ADDR_325         7'h54
`define      DATA_325         16'h8e60

//JESD sysref mode register----[2:0]==3'b000 for start up sequence in datasheet P124
`define      ADDR_326         7'h5C
`define      DATA_326         16'h0000

//--NCO freq path AB reg1
`define      ADDR_327         7'h1E 
`define      DATA_327         16'h0000

//--NCO freq path AB reg2
`define      ADDR_328         7'h1F 
`define      DATA_328         16'h0000

//--NCO freq path AB reg3         ------fs/4
`define      ADDR_329         7'h20 
`define      DATA_329         16'h4000

//--NCO freq path CD reg1
`define      ADDR_32A         7'h21 
`define      DATA_32A         16'h0000

//--NCO freq path CD reg2
`define      ADDR_32B         7'h22 
`define      DATA_32B         16'h0000

//--NCO freq path CD reg3         ------fs/4
`define      ADDR_32C         7'h23 
`define      DATA_32C         16'h0000

//--NCO phase path AB(autosync)   ------90 degree
`define      ADDR_32D         7'h1C 
`define      DATA_32D         16'h4000

//--NCO phase path CD(autosync)
`define      ADDR_32E         7'h1D 
`define      DATA_32E         16'h0000

//--CROSSBAR 1,lane mapping
`define     ADDR_32F         7'h5F 
`define     DATA_32F         16'h4567

//--CROSSBAR 2,lane mapping
`define     ADDR_330         7'h60 
`define     DATA_330         16'h0123















//---lmk_sync should be asserted here to generate at least 2 SYSREF

//-----startup sequence in Page124

//--1ST:reset encoder block
//--SET page4
`define     ADDR_03E         7'h09
`define     DATA_03E         16'h0004

//--1ST:reset encoder block
//--SET page4 register 0x0A[15] to 1
`define     ADDR_03F         7'h0A
`define     DATA_03F         16'hfc03

//--SET page4 register 0x0A[15] to 0
`define     ADDR_040         7'h0A
`define     DATA_040         16'h7c03

//--2ND:put  JESD204B core in reset
//--SET page0 register 0x00[1:0] to 2'b11
`define     ADDR_041         7'h09
`define     DATA_041         16'h0000

//SET page0 register 0x00[1:0] to 2'b11
`define     ADDR_042         7'h00
`define     DATA_042         16'h7803

//--3RD:sync CDRV and JESD204B blocks
//--SET page1/2 register 0x24[6:4] to 3'b010,use all SYSREF
`define     ADDR_043         7'h09
`define     DATA_043         16'h0003

//--SET page1/2 register 0x24[6:4] to 3'b010,use only the next SYSREF
`define     ADDR_044         7'h24
//`define     DATA_044         16'h0020   //use only the next SYSREF
`define     DATA_044         16'h0010   //use all SYSREF

//---lmk_sync should be asserted here to generate at least 2 SYSREF

//--SET page1/2 register 0x5c[2:0] to 3'b001,use all SYSREF
`define     ADDR_045         7'h5c
`define     DATA_045         16'h0011     //use only the next SYSREF
//`define     DATA_045         16'h0001     //use all sysref

//---lmk_sync should be asserted here to generate at least 2 SYSREF


//---4TH : take JESD core out of reset
//--SET page0 register 0x00[1:0] to 2'b00
`define     ADDR_046         7'h09
`define     DATA_046         16'h0000

//SET page0 register 0x00[1:0] to 2'b11
`define     ADDR_047         7'h00
`define     DATA_047         16'h7800














//---lmk_sync should be asserted here to generate at least 2 SYSREF

//---independent clear miscelloneous mask
//---miscellaneous configuration region
//--page set register, set master page
`define     ADDR_048         7'h09
`define     DATA_048         16'h0000

//clear serdes loss of signal alarms
`define     ADDR_049         7'h04 
`define     DATA_049         16'h0000

//clear SYSREF alignment circuit alarms
`define     ADDR_04A         7'h05 
`define     DATA_04A         16'h0000

//clear lane single detect alarm MASK
`define     ADDR_04B         7'h02 
`define     DATA_04B         16'h0000

//clear clock alarm MASK
`define     ADDR_04C         7'h03
`define     DATA_04C         16'h0000





//---independent clear multi-DUC mask
//---multi-DUC configuration region
//--page set register, set multi-DUC page
`define     ADDR_04D         7'h09
`define     DATA_04D         16'h0003

//JESD alarm for lane0
`define     ADDR_04E         7'h64 
`define     DATA_04E         16'h0000

//JESD alarm for lane1
`define     ADDR_04F         7'h65 
`define     DATA_04F         16'h0000

//JESD alarm for lane2
`define     ADDR_050         7'h66 
`define     DATA_050         16'h0000

//JESD alarm for lane3
`define     ADDR_051         7'h67
`define     DATA_051         16'h0000

//JESD alarm for lane4
`define     ADDR_052         7'h68
`define     DATA_052         16'h0000

//JESD alarm for lane5
`define     ADDR_053         7'h69
`define     DATA_053         16'h0000

//JESD alarm for lane6
`define     ADDR_054         7'h6A
`define     DATA_054         16'h0000

//JESD alarm for lane7
`define     ADDR_055         7'h6B
`define     DATA_055         16'h0000

//SYSREF and PAP alarms
`define     ADDR_056         7'h6C
`define     DATA_056         16'h0000

//clock divider alarms 1 register
`define     ADDR_057         7'h6D
`define     DATA_057         16'h0000









//------independent,get sysref status
//--page set register, set DIG_MISC
`define     ADDR_100         7'h09
`define     DATA_100         16'h0004

//--set SYSR_ALIGN_SYNC to clear status
`define     ADDR_101         7'h24
`define     DATA_101         16'hd802
`define     DATA_101_DIST    16'hd802

//--page set register, set general configuration registers
`define     ADDR_102         7'h09
`define     DATA_102         16'h000

//--ALM_SYSREF_DET
`define     ADDR_103         7'h05
`define     DATA_103         16'h000

//--SYSREF_ALIGN_R
`define     ADDR_104         7'h78
`define     DATA_104         16'h000

//--SYSREF12_CNT
`define     ADDR_105         7'h79
`define     DATA_105         16'h000

//--SYSREF34_CNT
`define     ADDR_106         7'h7A
`define     DATA_106         16'h000

//--ALM_SD_DET,W0C
`define     ADDR_107         7'h04
`define     DATA_107         16'h000

//--generate SPI sync
`define     ADDR_108         7'h09
`define     DATA_108         16'h0003

//--generate SPI sync
`define     ADDR_109         7'h28
`define     DATA_109         16'h0332

//--generate SPI sync
`define     ADDR_10A         7'h28
`define     DATA_10A         16'h0330

您好，

所有寄存器配置如上所示。 配置序列从开始到结束 请帮助检查错误配置导致问题的原因

福克斯

我已尝试禁用 NCO 和混频器。 重复复位后不会出现任何问题。例如、DAC 的输入是来自 DDS 的500MHz 数字信号。  当 NCO 和混频器被禁用时、我将输出信号连接到光谱仪进行观察。 反复复位后、光谱仪仅精确显示500MHz 频率、功率不会降低。

Yunlong、

将地址0x27设置为2222。

此致、

Jim