You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
22 lines
521 B
22 lines
521 B
module ram(input clk, wen, input [8:0] waddr, input [7:0] wdata, input [8:0] raddr, output [7:0] rdata);
|
|
reg [7:0] mem [511:0];
|
|
reg [7:0] r_data;
|
|
reg [7:0] w_data;
|
|
reg [7:0] w_addr;
|
|
reg last_we;
|
|
initial mem[0] = 255;
|
|
always @(posedge clk) begin
|
|
if (wen) begin //((last_we == 0) && (wen == 1)) begin
|
|
//w_data = wdata;
|
|
//w_addr = addr;
|
|
//mem[w_addr] <= w_data;
|
|
mem[waddr] <= wdata;
|
|
end
|
|
r_data <= mem[raddr];
|
|
//last_we = wen;
|
|
end
|
|
|
|
assign rdata = r_data;
|
|
|
|
endmodule
|