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[/] [a-z80/] [trunk/] [cpu/] [control/] [test_sequencer.sv] - Rev 13
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//==============================================================
// Test sequencer
//==============================================================
`timescale 100 ns/ 100 ns
module test_sequencer;
// ----------------- CLOCKS AND RESET -----------------
// Define one full T-clock cycle delay
`define T #2
bit clk = 1;
initial repeat (100) #1 clk = ~clk;
logic nreset = 0;
// ----------------- CONTROL ----------------
logic nextM_sig;
logic setM1_sig;
logic hold_clk_iorq_sig=0;
logic hold_clk_wait_sig=0;
logic hold_clk_busrq_sig=0;
wire T6_sig;
wire M5_sig;
assign nextM_sig = T6_sig; // Restart when reaching T6
assign setM1_sig = M5_sig & T6_sig; // Restart when reaching M5/T6
// ----------------- TEST -------------------
initial begin
// Init / reset
`T nreset = 1;
repeat (100) @(posedge clk); nreset <= 1;
// This test does not use assert() -- we just check visually
`T $display("End of test");
end
//--------------------------------------------------------------
// Instantiate sequencer
//--------------------------------------------------------------
sequencer sequencer_inst
(
.clk(clk) , // input clk
.nextM(nextM_sig) , // input nextM_sig
.setM1(setM1_sig) , // input setM1_sig
.nreset(nreset) , // input nreset
.hold_clk_iorq(hold_clk_iorq_sig) , // input hold_clk_iorq_sig
.hold_clk_wait(hold_clk_wait_sig) , // input hold_clk_wait_sig
.hold_clk_busrq(hold_clk_busrq_sig),// input hold_clk_busrq_sig
.M1(M1_sig) , // output M1_sig
.M2(M2_sig) , // output M2_sig
.M3(M3_sig) , // output M3_sig
.M4(M4_sig) , // output M4_sig
.M5(M5_sig) , // output M5_sig
.T1(T1_sig) , // output T1_sig
.T2(T2_sig) , // output T2_sig
.T3(T3_sig) , // output T3_sig
.T4(T4_sig) , // output T4_sig
.T5(T5_sig) , // output T5_sig
.T6(T6_sig) , // output T6_sig
.timings_en(timings_en_sig) // output timings_en_sig
);
endmodule
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