The write data channel carries the write data from the master to the slave and includes: • the data bus, that can be 8, 16, 32, 64, 128, 256, 512, or 1024 bits wide • a byte lane strobe signal for every eight data bits, indicating which bytes of the data are valid. 例如...
例如一个burst length=4的read,起始地址为xx111,arsize=64bit,bus中的width=128bit. 则首先master发出一个起始地址为7的,transfer,此时从slave拿到的数来自[63:56]; master发出下一个起始地址为0的,transfer,此时从slave拿到的数来自[31:0]; master发出下一个起始地址为8的,transfer,此时从slave拿到的数来自[6...
parameter int unsigned AXI_ADDR_WIDTH =0, parameter int unsigned AXI_DATA_WIDTH =0)(inputlogic clk_i); localparam AXI_STRB_WIDTH = AXI_DATA_WIDTH /8; typedef logic [AXI_ADDR_WIDTH-1:0] addr_t; typedef logic [AXI_DATA_WIDTH-1:0] data_t; typedef logic [AXI_STRB_WIDTH-1:0] strb...
localparamADDRLSB = $clog2(C_AXI_DATA_WIDTH/8);// 字节序再取log - > 偏移位宽// address mappinglocalparam [C_AXI_ADDR_WIDTH-1-ADDRLSB:0] UART_RX_FIFO ='d0, UART_TX_FIFO ='d1, UART_STA_REG ='d2, UART_CTR_REG ='d3; reg [C_AXI_ADDR_WIDTH-1-ADDRLSB:0] axi_awaddr; re...
例如一个burst length=4的read,起始地址为xx111,arsize=64bit,bus中的width=128bit. 则首先master发出一个起始地址为7的,transfer,此时从slave拿到的数来自[63:56]; master发出下一个起始地址为0的,transfer,此时从slave拿到的数来自[31:0]; master发出下一个起始地址为8的,transfer,此时从slave拿到的数来自[...
parameter integer C_M_AXI_ID_WIDTH = 1, // Width of Address Bus parameter integer C_M_AXI_ADDR_WIDTH = 32, // Width of Data Bus parameter integer C_M_AXI_DATA_WIDTH = 32, // Width of User Write Address Bus parameter integer C_M_AXI_AWUSER_WIDTH = 0, ...
parameter integer C_S_AXI_ID_WIDTH = 1, // Width of S_AXI data bus parameter integer C_S_AXI_DATA_WIDTH = 32, // Width of S_AXI address bus parameter integer C_S_AXI_ADDR_WIDTH = 6, // Width of optional user defined signal in write address channel ...
output [31:0] data_o, input ready_i ); endmodule 导入BD后的效果如下图,所有接口都是分开的。 这里分享两个解决办法。 2、遵循AXI4接口的命名方式 这里需要遵循AXI4接口的命名方式,导入BD中后,会自动聚合在一起,但这个方式的缺点是不可控,可能出现聚合混乱的情况。
AXI Address Width— Address bus width in bits. The IP supports 32, 40, or 64 bits. AXI Data Width— Data bus width in bits. The IP supports 32 or 64 bits. ID Width— ID width in bits. The value of this parameter must match the ID width of the AXI4 subordinate. ...
C_M_AXI_ADDR_WIDTH {32} \ CONFIG.C_USE_UART {1} \ ] $mdm_1 # Create instance: microblaze_0, and set properties set microblaze_0 [ create_bd_cell -type ip -vlnv xilinx.com:ip:microblaze microblaze_0 ] set_property -dict [ list \ CONFIG.C_DEBUG_ENABLED {1} \ CONFIG.C_D...