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在PL设计的时候,在Block design中是可以看到该地址的,在内存助手中;
用sdk打开该工程时,该地址也会自动生成对应的driver文件夹里;
sdk中头文件:<xparameters.h>中也可以找到IP核的相关信息,包括IP地址
创建源文件
module generrate_data(
output wire [31:0] data1,
output wire [31:0] data2,
output wire [31:0] data3,
output wire [31:0] data4
);
assign data1 = 32'd1123 ;
assign data2 = 32'd456 ;
assign data3 = 32'd789 ;
assign data4 = 32'd987 ;
endmodule
然后将这个文件添加到block design中.
如果找不到add module to block design 这个选项,那么有几个原因,具体可以参考传送门
最后得到data_make这个ip核,zynq7这个是PS端,如何创建可以查看上一篇博客.
input [31:0] data1,
input [31:0] data2,
input [31:0] data3,
input [31:0] data4,
.data1(data1),
.data2(data2),
.data3(data3),
.data4(data4),
input [31:0] data1,
input [31:0] data2,
input [31:0] data3,
input [31:0] data4
// Address decoding for reading registers
case ( axi_araddr[ADDR_LSB+OPT_MEM_ADDR_BITS:ADDR_LSB] )
3'h0 : reg_data_out <= data1;
3'h1 : reg_data_out <= data2;
3'h2 : reg_data_out <= data3;
3'h3 : reg_data_out <= data4;
3'h4 : reg_data_out <= slv_reg4;
3'h5 : reg_data_out <= slv_reg5;
3'h6 : reg_data_out <= slv_reg6;
3'h7 : reg_data_out <= slv_reg7;
default : reg_data_out <= 0;
生成比特流
#include <stdio.h> #include <xparameters.h> #define IP_ADDR XPAR_PL_PS_LITE_0_S00_AXI_BASEADDR //宏定义 int main(){ //1B = 8bit //1reg=32bit=4B unsigned int data1 = (*(volatile unsigned int*)(IP_ADDR + 0)); unsigned int data2 = (*(volatile unsigned int*)(IP_ADDR + 4)); unsigned int data3 = (*(volatile unsigned int*)(IP_ADDR + 8)); unsigned int data4 = (*(volatile unsigned int*)(IP_ADDR + 12)); /******* assign data1 = 32'd1123 ; assign data2 = 32'd456 ; assign data3 = 32'd789 ; assign data4 = 32'd987 ; ***********/ printf("data1:%d",data1); printf("data1:%d",data2); printf("data1:%d",data3); printf("data1:%d",data4); }
---晓凡 于2022年3月19日桂林书
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