本文主要是介绍AD9361多片同步设计方法，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
本文基于ZC706+FMCOMMS5的平台，介绍了多片AD9361同步的方法。并将该设计移植到自行设计的ZYNQ7035+4片AD9361(实现8路同步收发)的电路板上。本设计采用纯逻辑的方式，仅使用了ZYNQ芯片的PL部分。
9361多芯片同步主要包括基带同步和射频同步两大块任务。其中基带采用AD9361自带的MCS功能实现。而射频同步分为两种方法，分别是内部本振法和外部本振法。
在正式介绍同步之前，先做一点准备工作，主要包括SPI驱动、AD9361初始化，外部本振芯片ADF5355的控制等。因为FMCOMMS5上两片9361以及ADF5355共用了SPI_CLK、SPI_DO、SPI_DI信号，所以还涉及到总线如何仲裁的问题。
SPI驱动
下面是FMCOMM5驱动的端口：
module fmcomms5_spi(input clk,input rst_n,//avalon interfaceinput [2:0] cs, //[0]:AD9361_CHIP A;[1]:AD9361_CHIP B;[2]:ADF5355input read,input write,input [9:0] address,input [27:0] writedata,output reg [7:0] readdata,output reg waitrequest,//SPI interfaceoutput reg spi_clk,output reg spi_csn0,//SPI_ENB_Aoutput reg spi_csn1,//SPI_ENB_Boutput reg spi_csn2,//ADF5355_LEoutput reg spi_sdo,input spi_sdi
);
这个模块将SPI总线转换成了Avalon总线，cs[0]选通AD9361-chip0；cs[1]选通AD9361-chip1；cs[2]选通ADF5355。cs[2]具有最高优先级，cs[1]和cs[0]具有相同的优先级。通过控制cs，可以实现分时写ADF5355、以及读写AD9361的寄存器（支持同时写和分时读2片AD9361）。
时序如下图：
avalon_mux:avalon总线多路复用
avalon_mux最大的作用是隔离各个功能代码，使各个模块看起来像是在独占SPI总线一样。这样便于设计代码层次结构以及区分功能模块。使每个想访问SPI的代码块都只需要设计一个avalon master接口，然后接到avalon_mux这个模块的一个avalon slave接口上即可。模块端口定义如下：
module avalon_mux #(parameter ADDR_WIDTH=256,DATA_WIDTH=256)
(input clk,input rst_n,input [2:0] s0_cs,input s0_read,input s0_write,input [ADDR_WIDTH-1:0] s0_address,input [DATA_WIDTH-1:0] s0_writedata,output reg [DATA_WIDTH-1:0] s0_readdata,output reg s0_waitrequest,input [2:0] s1_cs,input s1_read,input s1_write,input [ADDR_WIDTH-1:0] s1_address,input [DATA_WIDTH-1:0] s1_writedata,output reg [DATA_WIDTH-1:0] s1_readdata,output reg s1_waitrequest,/*此处有省略*/input [2:0] s7_cs,input s7_read,input s7_write,input [ADDR_WIDTH-1:0] s7_address,input [DATA_WIDTH-1:0] s7_writedata,output reg [DATA_WIDTH-1:0] s7_readdata,output reg s7_waitrequest, output reg [2:0] m_cs,output reg m_read,output reg m_write,output reg [ADDR_WIDTH-1:0] m_address,output reg [DATA_WIDTH-1:0] m_writedata,input [DATA_WIDTH-1:0] m_readdata,input m_waitrequest
);
有了这个模块的加持，最终看到的代码结构类似于这样：
ad9361_init ad9361_init_inst0(.clk (clk ),.rst_n (rst_n ),.cs (init0_cs ),.read (init0_read ),.write (init0_write ),.address (init0_address ),.writedata (init0_writedata ),.readdata (init0_readdata ),.waitrequest(init0_waitrequest ));ad9361_init ad9361_init_inst1(.clk (clk ),.rst_n (rst_n ),.cs (init1_cs ),.read (init1_read ),.write (init1_write ),.address (init1_address ),.writedata (init1_writedata ),.readdata (init1_readdata ),.waitrequest(init1_waitrequest ));adf5355_init adf5355_init_inst(.clk (clk ),.rst_n (rst_n ),.cs (adf5355_cs ),.write (adf5355_write ),.address (adf5355_address ),.writedata (adf5355_writedata ),.waitrequest(adf5355_waitrequest )); avalon_mux avalon_mux_inst(.clk (clk ),.rst_n (rst_n ),.s0_cs (init0_cs ),.s0_read (init0_read ),.s0_write (init0_write ),.s0_address (init0_address ),.s0_writedata (init0_writedata ),.s0_readdata (init0_readdata ),.s0_waitrequest (init0_waitrequest ),.s1_cs (init1_cs ),.s1_read (init1_read ),.s1_write (init1_write ),.s1_address (init1_address ),.s1_writedata (init1_writedata ),.s1_readdata (init1_readdata ),.s1_waitrequest (init1_waitrequest ),.s1_cs (adf5355_cs ),.s1_read (adf5355_read ),.s1_write (adf5355_write ),.s1_address (adf5355_address ),.s1_writedata (adf5355_writedata ),.s1_readdata (adf5355_readdata ),.s1_waitrequest (adf5355_waitrequest ),.m_cs (m_cs ),.m_read (m_read ),.m_write (m_write ),.m_address (m_address ),.m_writedata (m_writedata ),.m_readdata (m_readdata ),.m_waitrequest (m_waitrequest )); //spi driver fmcomms5_spi fmcomms5_spi_inst(.clk (clk ),.rst_n (rst_n ),.cs (m_cs ),.read (m_read ),.write (m_write ),.address (m_address ),.writedata (m_writedata ), .readdata (m_readdata ),.waitrequest (m_waitrequest ),.spi_clk (SPI_CLK ),.spi_csn0 (SPI_ENB_A ),.spi_csn1 (SPI_ENB_B ),.spi_csn2 (ADF5355_LE ),.spi_sdo (SPI_DI ),.spi_sdi (SPI_DO ));
其中两片AD9361的初始化、ADF5355的初始化都可以完全独立的设计实现，各个初始化模块只需要设计avalon的接口即可。而avalon接口到SPI就由avalon_mux和fmcomms5_spi 处理。
AD9361初始化
AD9361初始化相关内容见AD9361纯逻辑控制从0到1连载3-初始化模块以及相关文章。
ADF5355
有关ADF5355的配置可以参考下面代码：
/*初始化状态：
1.参数输入为40M，所有参考输入倍频分频器都设置为x1,使PFD = 40M
2.VCO输出3.66G,2分频输出，输出1.83G。对应9361的射频本振为915M
3.
*/
//reg0
parameter [0:0] AUTOCAL = 1; //autocal
parameter [0:0] PRESCALER = 0; //预分频器值;0=4/5;1=8/9;预分频器会限制INT值，当P为4/5时， NMIN为23；当P为8/9时， NMIN为75。
parameter [15:0] INTEGER = 91; //3660/40//reg1
parameter [23:0] FRAC1 = 8388608; //(3660 mod 40)*2^24 = 0.5*(2^24)//reg2
parameter [13:0] FRAC2 = 0; //14位辅助小数值(FRAC2)
parameter [13:0] MOD2 = 1; //14位辅助模数值(MOD2),FRAC2为0，MOD2随便取个值//reg3
parameter [0:0] SD_LOAD_RESET = 0; //禁用写入寄存器0时， Σ-Δ调制器复位。对于相位持续调整的应用，可能不希望这样做。因此，在此类情况下，可将1写入SD1位(DB30)以禁用Σ-Δ复位。
parameter [0:0] PHASE_RESYNC = 0; //要使用相位再同步特性， 必须置1。
parameter [0:0] PHASE_ADJUST = 0; //要在每次寄存器0更新时调整ADF5355的相对输出相位，应将PA1位(DB28)设为1。与再同步特性不同，该特性适用于连续调整相位的应用。
parameter [23:0] PHASE = 0; //不做连续相位调整，相位值设置为0//reg4
parameter [2:0] MUXOUT = 3'b110; //101:analog lock detect;110:digital lock detect
parameter [0:0] REF_DOUBLER = 0; //当RD2位(DB26)设置为0时，参考频率信号直接馈入10位R计数器，倍频器禁用。当此位设置为1时，参考频率加倍，然后输入10位R计数器。
parameter [0:0] RDIV2 = 0; //当RDIV2位(DB25)设置为1时， R计数器与PFD之间将插入一个二分频触发器，以扩大参考频率最大输入速率。该功能在PFD输入端提供50%占空比信号。
parameter [9:0] R_COUNTER= 1; //10位R计数器,可以细分输入参考频率(REFIN)以产生PFD的参考时钟。分频比范围是1到1023。
parameter [0:0] DOUBLER_BUF = 1; //双缓冲使能(写寄存器0后才生效)
parameter [3:0] CURRENT_SETTING= 4'b0010; //为使杂散最低，推荐设置为0.9 mA。
parameter [0:0] REF_MODE= 1; //ADF5355支持使用差分或单端参考源。对于差分源，应将参考模式位(DB9)设为1；对于单端源，应设为0。
parameter [0:0] MUX_LOGIC = 1; //为了支持逻辑兼容性， MUXOUT可设置两个逻辑电平。U5位(DB8)设为0即选择1.8 V逻辑，设为1即选择3.3 V逻辑。
parameter [0:0] PD_POLARITY= 1; //如果使用无源环路滤波器或同相有源环路滤波器，应将DB7设置为1(正)。如果使用反相有源滤波器，应将其设置为0(负)。
parameter [0:0] POWER_DOWN = 0; //设置为1时，执行关断程序。 DB6设置为0时，频率合成器恢复正常工作。在软件关断模式下， ADF5355会保留寄存器中的所有信息。
parameter [0:0] CP_THREE_STATE= 0; //电荷泵进入三态模式。 DB5设置为0时，正常工作。
parameter [0:0] COUNTER_RESET= 0; //复位ADF5355的R计数器、 N计数器和VCO频段选择。当DB4设为1时， RF频率合成器N计数器、 R计数器和VCO频段选择复位。正常工作时， DB4应设置为0。//reg5
parameter [27:0] REG5_RESERVED = 28'h0080000;//寄存器5中的这些位保留，必须按照图43所示设置，使用十六进制字0x0080000。//reg6
parameter [0:0] GATED_BLEED = 0; //渗漏电流可用于改善相位噪声和杂散，但它对锁定时间可能有影响。选通渗漏位BL10 (DB30)设置为1时，可确保渗漏电流直到数字锁定检测置位逻辑高电平时才开启。注意， 此功能要求使能数字锁定检测。
parameter [0:0] NEGATIVE_BLEED = 1; //对于大多数应用，建议使用恒定负渗漏，因为它能改善电荷泵的线性度，从而降低噪声和杂散。要使能负渗漏，应向BL9(位DB29)写入1；要禁用负渗漏，应向BL9(位DB29)写入0。
parameter [0:0] FEED_BACK_SELECT = 1; //D13(位DB24)选择从VCO输出到N计数器的反馈。 D13设置为1时，信号直接从VCO获得。此位设置为0时，信号从输出分频器的输出获得。这些分频器使得输出可涵盖较宽的频率范围(3.4 GHz至6.8 GHz)。当计数器使能且反馈信号从其输出获得时，两个独立配置PLL的RF输出信号同相。分频反馈在需要对信号进行正干涉以提高功率的一些应用中很有用。
parameter [2:0] RF_DIVIDER_SELECT = 1; //初始化为1,2分频输出
parameter [7:0] CHARGE_PUMP_BLEED_CURRENT=7;//IBLEED值，值要确保4/N < IBLEED/ICP < 10/N，可优化器件的相位噪声和杂散水平。ICP前面设置为0.9mA了，N是PFD到VCO的倍频因子
parameter [0:0] MTLD = 0; //设置为1，则切断RF输出级的电源电流，直到数字锁定检测电路检测到器件实现锁定为止。
parameter [0:0] RF_OUTB = 0; //使能或禁用高频RF输出(RFOUTB)。 设置为0时，高频RF输出使能。 设置为1时，辅助RF输出禁用。
parameter [0:0] RF_OUTA = 1; //D3(位DB6)使能或禁用主RF输出(RFOUTA+/RFOUTA−)。 DB6设置为0时，主RF输出禁用。 DB6设置为1时，主RF输出使能。
parameter [1:0] RF_OUT_POWER = 2'b10; //D2和D1(位[DB5:DB4])设置主RF输出功率水平的值(参见图44)。0=-4dBm;1=-1dBm;2=2dBm;3=5dBm//reg7
parameter [0:0] LE_SYNC = 1; //设置为1时，位DB25确保加载使能(LE)沿与参考输入频率的上升沿内部同步。该同步可防止参考与RF分频器同时在参考频率的下降沿加载的罕见情况(可能导致锁定时间延长)。
parameter [1:0] LD_CYCLE_COUNT = 2'b00; //LD5和LD4(位[DB9:DB8])设置锁定检测电路连续计数多少周期后才将锁定检测置位高电平
parameter [0:0] LOL_MODE = 1; //对于可能会移除参考(REFIN)的固定频率应用，例如定时应用，应将LOL(位DB7)设置为1。标准锁定检测电路假设REFIN始终存在，但对于定时应用，情况可能并非如此。此功能通过将DB7设置为1来使能。
parameter [1:0] FRAC_N_LD_PRECISION = 2'b11;//LD3和LD2(位[DB6:DB5])设置小数N模式下锁定检测电路的精度。 LDP可设置为5 ns、 6 ns、 8 ns或12 ns。使用渗漏电流时，应使用12 ns。
parameter [0:0] LD_MODE = 0; //锁定检测模式(LDM)如果LD1(位DB4)设置为0，则每个参考周期由小数N锁定检测精度设置，如“小数N锁定检测计数(LDC)”部分所述。DB4设置为1时，各参考周期为2.9 ns长，这更适合整数N分频应用。//reg8
parameter [27:0] REG8_RESERVED = 28'h102D402;//此寄存器中的这些位保留，必须按照图46所示设置，使用十六进制字0x102D402//reg9
parameter [7:0] VCO_BAND_DIVISION = 17; //VC8至VC1(位[DB31:DB24])设置VCO频段分频时钟的值。用PFD/(频段分频× 16)确定此时钟的值，使得结果小于150 kHz。
parameter [9:0] TIMEOUT = 67; //TL10至TL1(位[DB23:DB14])设置VCO频段选择的超时值。此值用作其他VCO校准设置中的变量。
parameter [4:0] AUTOMATIC_LEVEL_TIMEOUT = 30; //保证(TIMEOUT × AUTOMATIC_LEVEL_TIMEOUT/PFD频率) > 50 µs
parameter [4:0] SYNTHESIZER_LOCK_TIMEOUT = 12; //(TIMEOUT ×SYNTHESIZER_LOCK_TIMEOUT/PFD频率) > 20 µs//reg10
parameter [7:0] ADC_CLOCK_DIVIDER = 100; //PFD/((ADC_CLK × 4) × 2) < 100 kHz
parameter [0:0] ADC_CONVERSION = 1; //AE2(位DB5)确保对寄存器10执行写操作后， ADC执行转换。建议使能这种模式。
parameter [0:0] ADC_ENABLE = 1; //AE1(位DB4)设置为1时， ADC上电以执行温度相关的VTUNE校准。建议总是使用该功能。//reg11
parameter [27:0] REG11_RESERVED = 28'h0061300;//此寄存器中的这些位保留，必须按照图49所示设置，使用十六进制字0x0061300//reg12
parameter [15:0] RESYNC_CLOCK = 0;//When not using phase resync, set these bits to 1 for normaloperationfunction [31:0] adf5355_lut;
input [7:0] index;begincase(index)8'd0 :adf5355_lut={4'hc,RESYNC_CLOCK,12'b0000_0100_0001};8'd1 :adf5355_lut={4'hb,REG11_RESERVED};8'd2 :adf5355_lut={4'ha,18'b00_0000_0011_0000_0000,ADC_CLOCK_DIVIDER,ADC_CONVERSION,ADC_ENABLE};8'd3 :adf5355_lut={4'h9,VCO_BAND_DIVISION,TIMEOUT,AUTOMATIC_LEVEL_TIMEOUT,SYNTHESIZER_LOCK_TIMEOUT};8'd4 :adf5355_lut={4'h8,REG8_RESERVED};8'd5 :adf5355_lut={4'h7,6'b000100,LE_SYNC,15'd0,LD_CYCLE_COUNT,LOL_MODE,FRAC_N_LD_PRECISION,LD_MODE};8'd6 :adf5355_lut={4'h6,1'b0,GATED_BLEED,NEGATIVE_BLEED,4'b1010,FEED_BACK_SELECT,RF_DIVIDER_SELECT,CHARGE_PUMP_BLEED_CURRENT,1'b0,MTLD,RF_OUTB,3'b000,RF_OUTA,RF_OUT_POWER};8'd7 :adf5355_lut={4'h5,REG5_RESERVED};8'd8 :adf5355_lut={4'h4,2'b00,MUXOUT,REF_DOUBLER,RDIV2,R_COUNTER,DOUBLER_BUF,CURRENT_SETTING,REF_MODE,MUX_LOGIC,PD_POLARITY,POWER_DOWN,CP_THREE_STATE,COUNTER_RESET};8'd9 :adf5355_lut={4'h3,1'b0,SD_LOAD_RESET,PHASE_RESYNC,PHASE_ADJUST,PHASE};8'd10:adf5355_lut={4'h2,FRAC2,MOD2};8'd11:adf5355_lut={4'h1,4'b0000,FRAC1};8'd12:adf5355_lut={4'hf,28'd0}; //delay8'd13:adf5355_lut={4'h0,10'b0000000000,AUTOCAL,PRESCALER,INTEGER};default:adf5355_lut=32'hffffffff;endcaseend
endfunction
初始化的方法就是依次执行adf5355_lut这个函数列表的指令，比如第一条指令是写{RESYNC_CLOCK,12’b0000_0100_0001}到4’hc这个寄存器。
如果需要动态修改ADF5355的频率，则执行下面的命令列表即可:
function [31:0] cmd;input [7:0] index;begincase(index) 0 :cmd={4'ha,18'h00300,ADC_CLOCK_DIVIDER,ADC_CONVERSION,ADC_ENABLE};1 :cmd={4'h4,2'b00,MUXOUT,REF_DOUBLER,RDIV2,R_COUNTER,DOUBLER_BUF,CURRENT_SETTING,REF_MODE,MUX_LOGIC,PD_POLARITY,POWER_DOWN,CP_THREE_STATE,1'b1};2 :cmd={4'h6,1'b0,GATED_BLEED,NEGATIVE_BLEED,4'b1010,FEED_BACK_SELECT,lo_div,CHARGE_PUMP_BLEED_CURRENT,1'b0,MTLD,RF_OUTB,3'b000,RF_OUTA,RF_OUT_POWER}; 3 :cmd={4'h2,lo_frac2,lo_mod2};4 :cmd={4'h1,4'd0,lo_frac1};5 :cmd={4'h0,10'd0,1'b0,PRESCALER,lo_int};6 :cmd={4'h4,2'b00,MUXOUT,REF_DOUBLER,RDIV2,R_COUNTER,DOUBLER_BUF,CURRENT_SETTING,REF_MODE,MUX_LOGIC,PD_POLARITY,POWER_DOWN,CP_THREE_STATE,1'b0};7 :cmd={4'hf,28'd0};8 :cmd={4'h0,10'd0,AUTOCAL,PRESCALER,lo_int};default:cmd=32'hffffffff;endcaseendendfunction
其中lo_div，lo_int，lo_frac1，lo_frac2，lo_mod2根据频率计算得出，具体计算方法由下面这个模块得到。
module adf5355_freq2param(input clk,input rst_n,input [33:0] lo_freq,output reg [2:0] lo_div, output reg [15:0] lo_int,output reg [23:0] lo_frac1, output reg [13:0] lo_frac2,output reg [13:0] lo_mod2,output reg param_valid
);
写不动了，先贴个顶层在这里，后面有时间再补吧
module zc706_fmcomms5(// input USRCLK_P, //156.25M// input USRCLK_N,input REF_CLK_FMC_P,input REF_CLK_FMC_N,//sync pinoutput SYNC_IN,//spi pinsoutput SPI_ENB_A,output SPI_ENB_B,output SPI_CLK,output SPI_DI,input SPI_DO,input ADF5355_LOCK,output ADF5355_RF_EN,output ADF5355_LE,output reg CAL_SW_1,output reg CAL_SW_2,output reg CAL_SW_3,output reg CAL_SW_4,//fmc power enableoutput PG_FMC,output GPIO_LED_RIGTH,output GPIO_LED_LEFT,output GPIO_LED_CENTER,output GPIO_LED_0,//chip Aoutput RESET_A,output EN_AGC_A, output ENABLE_A,output TXNRX_A,output [3:0] CTRL_IN_A,input [7:0] CTRL_OUT_A,output FB_CLK_P_A,output FB_CLK_N_A,output [5:0] TX_D_P_A,output [5:0] TX_D_N_A,output TX_FRAME_P_A,output TX_FRAME_N_A,input DATA_CLK_P_A, input DATA_CLK_N_A, input [5:0] RX_D_P_A, input [5:0] RX_D_N_A,input RX_FRAME_P_A, input RX_FRAME_N_A,//chip Boutput RESET_B,output EN_AGC_B, output ENABLE_B,output TXNRX_B,output [3:0] CTRL_IN_B,input [7:0] CTRL_OUT_B,output FB_CLK_P_B,output FB_CLK_N_B,output [5:0] TX_D_P_B,output [5:0] TX_D_N_B,output TX_FRAME_P_B,output TX_FRAME_N_B,input DATA_CLK_P_B, input DATA_CLK_N_B, input [5:0] RX_D_P_B, input [5:0] RX_D_N_B,input RX_FRAME_P_B, input RX_FRAME_N_B,input [3:0] GPIO_DIP_SW
);zynq_wrapper zynq_wrapper();assign PG_FMC = 1;//AD9361 config clock and init stateswire clk_40m;wire sample_clk;wire lock_out;wire vio_mcs_rst;wire vio_cal_rst;wire vio_rd_lock;wire vio_bist_rx;wire vio_bist_loop;wire [32:0] vio_lo_freq;wire [7:0] vio_reg006,vio_reg007;wire [7:0] vio_mgc1_value,vio_mgc2_value;wire [8:0] vio_tx1_att,vio_tx2_att;wire vio_alert;wire vio_cal_busy;wire vio_tx_on,vio_rx_on;wire vio_rst;wire vio_ext_lo_en;wire init_done_a,init_done_b;wire config_done_a,config_done_b;wire mcs_done;reg mcs_done_r1,mcs_done_r2;wire cal_busy;reg cal_busy_r1,cal_busy_r2;wire adf5355_config_done;reg adf5355_config_done_r1,adf5355_config_done_r2;always @ (posedge clk_40m){cal_busy_r2,cal_busy_r1}<={cal_busy_r1,cal_busy};always @ (posedge sample_clk)begin{mcs_done_r2,mcs_done_r1}<={mcs_done_r1,mcs_done};{adf5355_config_done_r2,adf5355_config_done_r1}<={adf5355_config_done_r1,adf5355_config_done};endreg [25:0] alive_cnt;always @ (posedge clk_40m)alive_cnt<=alive_cnt+1;assign GPIO_LED_RIGTH=alive_cnt[25];assign GPIO_LED_LEFT=alive_cnt[25];assign GPIO_LED_CENTER=alive_cnt[25];assign GPIO_LED_0=alive_cnt[25];clk_wiz_1 clk_wiz_1_inst(.clk_out1 (clk_40m),.reset (1'b0),.locked (locked),.clk_in1_p (REF_CLK_FMC_P),.clk_in1_n (REF_CLK_FMC_N));assign rst_n = locked && !vio_rst;wire [2:0] s0_cs=3'b001;wire s0_read;wire s0_write;wire [7:0] s0_writedata;wire [7:0] s0_readdata;wire [9:0] s0_address;wire s0_waitrequest; wire [2:0] s1_cs=3'b010;wire s1_read;wire s1_write;wire [7:0] s1_writedata;wire [7:0] s1_readdata;wire [9:0] s1_address;wire s1_waitrequest;wire [2:0] mcs_cs;wire mcs_read;wire mcs_write;wire [7:0] mcs_writedata;wire [7:0] mcs_readdata;wire [9:0] mcs_address;wire mcs_waitrequest; wire [2:0] debug_cs;wire debug_read;wire debug_write;wire [27:0] debug_writedata;wire [7:0] debug_readdata;wire [9:0] debug_address;wire debug_waitrequest;wire [2:0] adf5355_init_cs = 3'b100;wire adf5355_init_read;wire adf5355_init_write;wire [27:0] adf5355_init_writedata;wire [3:0] adf5355_init_address;wire adf5355_init_waitrequest;wire [2:0] adf5355_config_cs = 3'b100;wire adf5355_config_read;wire adf5355_config_write;wire [27:0] adf5355_config_writedata;wire [3:0] adf5355_config_address;wire adf5355_config_waitrequest;wire [2:0] m_cs;wire m_read;wire m_write;wire [27:0] m_writedata;wire [7:0] m_readdata;wire [9:0] m_address;wire m_waitrequest;/*****************************************************************/ ad9361_config ad9361_config_inst0 (.clk (clk_40m ),.rst_n (rst_n ),.read (s0_read ),.write (s0_write ),.writedata (s0_writedata ),.readdata (s0_readdata ),.address (s0_address ),.waitrequest (s0_waitrequest ),.txnrx (TXNRX_A ),.enable (ENABLE_A ),.chip_rst_n (RESET_A ),.init_done (init_done_a ),.config_done (config_done_a ),.rd_lock (vio_rd_lock ),.mgc1_value (vio_mgc1_value ),.mgc2_value (vio_mgc2_value ),.bist_rx (vio_bist_rx ),.bist_loop (vio_bist_loop ),.reg006 (vio_reg006 ),.reg007 (vio_reg007 ),.tx1_att (vio_tx1_att ),.tx2_att (vio_tx2_att ),.tx_lo_freq (vio_lo_freq ),.rx_lo_freq (vio_lo_freq ),.alert (vio_alert ),.ext_lo_en (vio_ext_lo_en ),.cal_busy (cal_busy_r2 ),.tx_on (vio_tx_on ),.rx_on (vio_rx_on )); ad9361_config ad9361_config_inst1 (.clk (clk_40m ),.rst_n (rst_n ),.read (s1_read ),.write (s1_write ),.writedata (s1_writedata ),.readdata (s1_readdata ),.address (s1_address ),.waitrequest (s1_waitrequest ),.txnrx (TXNRX_B ),.enable (ENABLE_B ),.chip_rst_n (RESET_B ),.init_done (init_done_b ),.config_done (config_done_b ),.rd_lock (vio_rd_lock ),.mgc1_value (vio_mgc1_value ),.mgc2_value (vio_mgc2_value ),.bist_rx (vio_bist_rx ),.bist_loop (vio_bist_loop ),.reg006 (vio_reg006 ),.reg007 (vio_reg007 ),.tx1_att (vio_tx1_att ),.tx2_att (vio_tx2_att ),.tx_lo_freq (vio_lo_freq ),.rx_lo_freq (vio_lo_freq ),.alert (vio_alert ),.ext_lo_en (vio_ext_lo_en ),.cal_busy (cal_busy_r2 ),.tx_on (vio_tx_on ),.rx_on (vio_rx_on ));wire tx_sel,rx_sel;always @ (posedge sample_clk)beginCAL_SW_1 <= !tx_sel; //tx_sel=0:A selected;tx_sel=1:B selectedCAL_SW_2 <= !rx_sel; //tx_sel=0:A selected;tx_sel=1:B selectedendvio_top vio_top_inst(.clk (clk_40m ), .probe_out0 (vio_mcs_rst ),.probe_out1 (vio_cal_busy ),.probe_out2 (vio_bist_rx ),.probe_out3 (vio_bist_loop ),.probe_out4 (vio_lo_freq ),.probe_out5 (vio_rd_lock ),.probe_out6 (vio_reg006 ),.probe_out7 (vio_reg007 ),.probe_out8 (vio_mgc1_value ),.probe_out9 (vio_mgc2_value ),.probe_out10(vio_tx1_att ),.probe_out11(vio_tx2_att ),.probe_out12(vio_alert ),.probe_out13(vio_tx_on ),.probe_out14(vio_rx_on ),.probe_out15(vio_rst ));wire adf5355_init_done;adf5355_init adf5355_init_inst(.clk (clk_40m ),.rst_n (rst_n ),.write (adf5355_init_write ),.address (adf5355_init_address ),.writedata (adf5355_init_writedata ),.waitrequest(adf5355_init_waitrequest ),.init_done (adf5355_init_done )); mcs mcs_inst(.clk (clk_40m ),.rst_n (rst_n ),.cs (mcs_cs ),.write (mcs_write ),.read (mcs_read ),.address (mcs_address ),.writedata (mcs_writedata ),.readdata (mcs_readdata ),.waitrequest (mcs_waitrequest ),.mcs_done (mcs_done ),.sync_in (SYNC_IN )); adf5355_config adf5355_config(.clk (clk_40m ),.rst_n (rst_n ),.write (adf5355_config_write ),.writedata (adf5355_config_writedata ),.address (adf5355_config_address ),.waitrequest(adf5355_config_waitrequest ),.freq ({lo_freq ));avalon_mux avalon_mux_inst(.clk (clk_40m ),.rst_n (rst_n ),.s0_cs (s0_cs ),.s0_read (s0_read ),.s0_write (s0_write ),.s0_address (s0_address ),.s0_writedata (s0_writedata ),.s0_readdata (s0_readdata ),.s0_waitrequest (s0_waitrequest ),.s1_cs (s1_cs ),.s1_read (s1_read ),.s1_write (s1_write ),.s1_address (s1_address ),.s1_writedata (s1_writedata ),.s1_readdata (s1_readdata ),.s1_waitrequest (s1_waitrequest ),.s2_cs (mcs_cs ),.s2_read (mcs_read ),.s2_write (mcs_write ),.s2_address (mcs_address ),.s2_writedata (mcs_writedata ),.s2_readdata (mcs_readdata ),.s2_waitrequest (mcs_waitrequest ),.s3_cs (debug_cs ),.s3_read (debug_read ),.s3_write (debug_write ),.s3_address (debug_address ),.s3_writedata (debug_writedata ),.s3_readdata (debug_readdata ),.s3_waitrequest (debug_waitrequest ),.s4_cs (adf5355_init_cs ),.s4_write (adf5355_init_write ),.s4_address (adf5355_init_address ),.s4_writedata (adf5355_init_writedata ),.s4_waitrequest (adf5355_init_waitrequest ),.s5_cs (adf5355_config_cs ),.s5_write (adf5355_config_write ),.s5_address (adf5355_config_address ),.s5_writedata (adf5355_config_writedata ),.s5_waitrequest (adf5355_config_waitrequest ),.m_cs (m_cs ),.m_read (m_read ),.m_write (m_write ),.m_address (m_address ),.m_writedata (m_writedata ),.m_readdata (m_readdata ),.m_waitrequest (m_waitrequest )); //spi driver fmcomms5_spi fmcomms5_spi_inst(.clk (clk_40m ),.rst_n (locked ),.cs (m_cs ),.read (m_read ),.write (m_write ),.address (m_address ),.writedata (m_writedata ), .readdata (m_readdata ),.waitrequest (m_waitrequest ),.spi_clk (SPI_CLK ),.spi_csn0 (SPI_ENB_A ),.spi_csn1 (SPI_ENB_B ),.spi_csn2 (ADF5355_LE ),.spi_sdo (SPI_DI ),.spi_sdi (SPI_DO ));assign ADF5355_RF_EN = 1;/**********************数据接口*************************/data_if_top data_if_top_inst(.sample_clk (sample_clk ),.lock_out (lock_out ),.dac0_data_i1 (dac0_data_i1 ),.dac0_data_q1 (dac0_data_q1 ),.dac0_data_i2 (dac0_data_i2 ),.dac0_data_q2 (dac0_data_q2 ),.adc0_data_i1 (adc0_data_i1 ),.adc0_data_q1 (adc0_data_q1 ),.adc0_data_i2 (adc0_data_i2 ),.adc0_data_q2 (adc0_data_q2 ),.dac1_data_i1 (dac1_data_i1 ),.dac1_data_q1 (dac1_data_q1 ),.dac1_data_i2 (dac1_data_i2 ),.dac1_data_q2 (dac1_data_q2 ),.adc1_data_i1 (adc1_data_i1 ),.adc1_data_q1 (adc1_data_q1 ),.adc1_data_i2 (adc1_data_i2 ),.adc1_data_q2 (adc1_data_q2 ),.rx0_data_clk_p (DATA_CLK_P_A ),.rx0_data_clk_n (DATA_CLK_N_A ),.rx0_frame_in_p (RX_FRAME_P_A ),.rx0_frame_in_n (RX_FRAME_N_A ),.rx0_data_in_p (RX_D_P_A ),.rx0_data_in_n (RX_D_N_A ),.tx0_clk_out_p (FB_CLK_P_A ),.tx0_clk_out_n (FB_CLK_N_A ),.tx0_frame_out_p (TX_FRAME_P_A ),.tx0_frame_out_n (TX_FRAME_N_A ),.tx0_data_out_p (TX_D_P_A ),.tx0_data_out_n (TX_D_N_A ),.rx1_data_clk_p (DATA_CLK_P_B ),.rx1_data_clk_n (DATA_CLK_N_B ),.rx1_frame_in_p (RX_FRAME_P_B ),.rx1_frame_in_n (RX_FRAME_N_B ),.rx1_data_in_p (RX_D_P_B ),.rx1_data_in_n (RX_D_N_B ),.tx1_clk_out_p (FB_CLK_P_B ),.tx1_clk_out_n (FB_CLK_N_B ),.tx1_frame_out_p (TX_FRAME_P_B ),.tx1_frame_out_n (TX_FRAME_N_B ),.tx1_data_out_p (TX_D_P_B ),.tx1_data_out_n (TX_D_N_B ),.cal_rst_n (ADF5355_LOCK ),.cal_busy (cal_busy ),.tx_sel (tx_sel ),.rx_sel (rx_sel )); endmodule这篇关于AD9361多片同步设计方法的文章就介绍到这儿，希望我们推荐的文章对编程师们有所帮助！
