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smolmulti.t.v
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`include "Multi/smolmulti.v"
// `timescale 1ns/1ps
`define ASSERT_EQ(val, exp, msg) \
if (val !== exp) $display("[FAIL] %s (got:b%b expected:b%b)", msg, val, exp);
module testSmolMulti();
reg MOSI;
reg SCLK;
reg CLK;
reg CS;
wire MISO;
reg passed =0;
reg rc0,rc1,rc2,rc3,rc4,rc5,rc6,rc7;
initial CLK=0;
always #10 CLK = !CLK;
initial SCLK =0;
always #100 SCLK=!SCLK;
SmolMulti multismol(.MOSI(MOSI),.SCLK(SCLK),.CLK(CLK),.CS(CS),.MISO(MISO));
initial begin
CS<=0;
end
initial begin
$dumpfile("smolmulti.vcd");
$dumpvars();
@(posedge SCLK);
CS<=1;
@(posedge SCLK);
// Input A: 0001
MOSI = 1'b0;
@(posedge SCLK);
MOSI = 1'b0;
@(posedge SCLK);
MOSI = 1'b0;
@(posedge SCLK);
MOSI = 1'b1;
// Input B: 0110
@(posedge SCLK);
MOSI = 1'b0;
@(posedge SCLK);
MOSI = 1'b1;
@(posedge SCLK);
MOSI = 1'b1;
@(posedge SCLK);
MOSI = 1'b0;
// `ASSERT_EQ(MISO, 1'b0, "Failed"); #200
@(posedge SCLK);
@(posedge SCLK);
@(posedge SCLK);
@(posedge SCLK);
@(posedge SCLK);
if(MISO !== 0) begin
$display("Failed, little boy: 1.");
$display("MISO : %b", MISO);
passed = 1;
$finish;
end
rc0=MISO;
@(posedge SCLK);
if(MISO !== 0) begin
$display("Failed, little boy: 2.");
passed = 1;
$finish;
end
rc1=MISO;
$display("MISO : %b", MISO);
@(posedge SCLK);
if(MISO !== 0) begin
$display("Failed, little boy: 3.");
passed = 1;
$finish;
end
rc2=MISO;
$display("MISO : %b", MISO);
@(posedge SCLK);
if(MISO !== 0) begin
$display("Failed, little boy: 4.");
passed = 1;
$finish;
end
rc3=MISO;
$display("MISO : %b", MISO);
@(posedge SCLK);
if(MISO !== 0) begin
$display("Failed, little boy: 5.");
passed = 1;
$finish;
end
rc4=MISO;
$display("MISO : %b", MISO);
@(posedge SCLK);
if(MISO !== 1) begin
$display("Failed, little boy: 6.");
$display("Expected MISO : 1");
passed = 1;
$finish;
end
rc5=MISO;
$display("MISO : %b", MISO);
@(posedge SCLK);
if(MISO !== 1) begin
$display("Failed, little boy: 7.");
passed = 1;
$finish;
end
rc6=MISO;
$display("MISO : %b", MISO);
@(posedge SCLK);
if(MISO !== 0) begin
$display("Failed, little boy: 8.");
passed = 1;
$finish;
end
rc7=MISO;
$display("MISO : %b", MISO);
#200
// `ASSERT_EQ(MISO, 1'b0, "Failed"); #200
// if(MISO == 1'b0)
// `ASSERT_EQ(MISO, 1'b1, "Failed"); #200
// `ASSERT_EQ(MISO, 1'b1, "Failed"); #200
// `ASSERT_EQ(MISO, 1'b0, "Failed"); #200
// `ASSERT_EQ(MISO, 1'b0, "Failed"); #200
// `ASSERT_EQ(MISO, 1'b1, "Failed"); #200
// `ASSERT_EQ(MISO, 1'b1, "Failed"); #200
if (passed) $display("Failed.");
$display("%b,%b,%b,%b,%b,%b,%b,%b", rc0,rc1,rc2,rc3,rc4,rc5,rc6,rc7);
#20 $finish;
end
endmodule