Hi everyone,
As you can see on the attachment file, I'm designing an SPI module that
is divided in two modules.
But I have a problem when I try to connect data_out with LED (in
verilog). What I have to use to implement this ?
This is my module declaration :
module SPI( input clk,
input SCK,
input SSEL,
input MOSI,
output reg [7:0]LED);
module Read_data (input SCK_SYNC,
input MOSI,
input SSEL,
output reg [7:0] data_out);
module Sync_CLK(input clk,
input SCK,
output reg SCK_SYNC);
This my instanciation :
wire SCK_SYNC;
wire[7:0] data_out;
Read_data Read_data1 (.SCK_SYNC(SCK_SYNC), .MOSI(MOSI), .SSEL(SSEL),
.data_out(LED));
Sync_CLK Sync_CLK1 (.clk(clk),.SCK(SCK), .SCK_SYNC(SCK_SYNC));
But it doesn't work, I have this error :
line 32 Reference to vector reg 'LED' is not a legal net lvalue
line 32 Connection to output port 'data_out' must be a net lvalue
line 32 = Read_data Read_data1 (.SCK_SYNC(SCK_SYNC), .MOSI(MOSI),
.SSEL(SSEL), .data_out(LED));
I hope that someone can help me
Bye