mirror of
https://github.com/YosysHQ/yosys
synced 2025-08-07 19:51:23 +00:00
Fix run-test.sh; Add new test for dpram.
This commit is contained in:
parent
0b25dbf1c6
commit
3c10f58d04
4 changed files with 120 additions and 1 deletions
81
tests/ice40/dpram_tb.v
Normal file
81
tests/ice40/dpram_tb.v
Normal file
|
@ -0,0 +1,81 @@
|
|||
module testbench;
|
||||
reg clk;
|
||||
|
||||
initial begin
|
||||
// $dumpfile("testbench.vcd");
|
||||
// $dumpvars(0, testbench);
|
||||
|
||||
#5 clk = 0;
|
||||
repeat (10000) begin
|
||||
#5 clk = 1;
|
||||
#5 clk = 0;
|
||||
end
|
||||
end
|
||||
|
||||
|
||||
reg [7:0] data_a = 0;
|
||||
reg [7:0] addr_a = 0;
|
||||
reg [7:0] addr_b = 0;
|
||||
reg we_a = 0;
|
||||
reg re_a = 1;
|
||||
wire [7:0] q_a;
|
||||
reg mem_init = 0;
|
||||
|
||||
reg [7:0] pq_a;
|
||||
|
||||
always @(posedge clk) begin
|
||||
#3;
|
||||
data_a <= data_a + 17;
|
||||
|
||||
addr_a <= addr_a + 1;
|
||||
addr_b <= addr_b + 1;
|
||||
end
|
||||
|
||||
always @(posedge addr_a) begin
|
||||
#10;
|
||||
if(addr_a > 6'h3E)
|
||||
mem_init <= 1;
|
||||
end
|
||||
|
||||
always @(posedge clk) begin
|
||||
//#3;
|
||||
we_a <= !we_a;
|
||||
end
|
||||
|
||||
reg [7:0] mem [(1<<8)-1:0];
|
||||
|
||||
always @(posedge clk) // Write memory.
|
||||
begin
|
||||
if (we_a)
|
||||
mem[addr_a] <= data_a; // Using write address bus.
|
||||
end
|
||||
always @(posedge clk) // Read memory.
|
||||
begin
|
||||
pq_a <= mem[addr_b]; // Using read address bus.
|
||||
end
|
||||
|
||||
top uut (
|
||||
.din(data_a),
|
||||
.write_en(we_a),
|
||||
.waddr(addr_a),
|
||||
.wclk(clk),
|
||||
.raddr(addr_b),
|
||||
.rclk(clk),
|
||||
.dout(q_a)
|
||||
);
|
||||
|
||||
uut_mem_checker port_a_test(.clk(clk), .init(mem_init), .en(!we_a), .A(q_a), .B(pq_a));
|
||||
|
||||
endmodule
|
||||
|
||||
module uut_mem_checker(input clk, input init, input en, input [7:0] A, input [7:0] B);
|
||||
always @(posedge clk)
|
||||
begin
|
||||
#1;
|
||||
if (en == 1 & init == 1 & A !== B)
|
||||
begin
|
||||
$display("ERROR: ASSERTION FAILED in %m:",$time," ",A," ",B);
|
||||
$stop;
|
||||
end
|
||||
end
|
||||
endmodule
|
Loading…
Add table
Add a link
Reference in a new issue