IP Core: FIFO

前言

Instantiate thisFIFO的IPnuclear forSDRAM中读写FIFO

正文

Only the following are configured3部分,其余保持默认即可

配置完成后,You can go to the folder to find the instantiation file,将其复制到顶层模块中

//------------- wr_fifo_data -------------
fifo_r_w   wr_fifo_data(
    //用户接口
    .wrclk      (wr_fifo_wr_clk ),  //写时钟
    .wrreq      (wr_fifo_wr_req ),  //写请求
    .data       (wr_fifo_wr_data),  //写数据
    //SDRAM接口
    .rdclk      (sdram_clk		),  //读时钟
    .rdreq      (sdram_wr_ack   ),  //读请求
    .q          (sdram_data_in  ),  //读数据
 
    .rdusedw    (wr_fifo_num    ),  //FIFO中的数据量
    .wrusedw    (               ),
    .aclr       (~sdram_rst_n || wr_fifo_rst)  //清零信号
);
 
//------------- rd_fifo_data -------------
fifo_r_w   rd_fifo_data(
    //sdram接口
    .wrclk      (sdram_clk		),  //写时钟
    .wrreq      (sdram_rd_ack   ),  //写请求
    .data       (sdram_data_out ),  //写数据
    //用户接口
    .rdclk      (rd_fifo_rd_clk ),  //读时钟
    .rdreq      (rd_fifo_rd_req ),  //读请求
    .q          (rd_fifo_rd_data),  //读数据
 
    .rdusedw    (               ),
    .wrusedw    (rd_fifo_num    ),  //FIFO中的数据量
    .aclr       (~sdram_rst_n || rd_fifo_rst)  //清零信号
);