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tb: Make tb_tk1_spi_master.v selftesting

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- Compare against expected value
- Exit with the correct error code
This commit is contained in:
Daniel Jobson 2024-11-21 15:07:27 +01:00
parent 09c3d9b58e
commit c547042553
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GPG Key ID: 3707A9DBF4BB8F1A
1 changed files with 69 additions and 4 deletions
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73
hw/application_fpga/core/tk1/tb/tb_tk1_spi_master.v
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@ -395,6 +395,21 @@ module tb_tk1_spi_master ();
end
endtask // read_status
//----------------------------------------------------------------
// check_byte()
//
// The function checks that the input_data byte matches with the expected.
//----------------------------------------------------------------
task check_byte(input [7 : 0] input_data, input [7 : 0] expected);
begin : check_byte
if (input_data != expected) begin
$display("--- Error: Got 0x%02x, expected 0x%02x", input_data, expected);
error_ctr = error_ctr + 1;
end
end
endtask // check_byte
//----------------------------------------------------------------
// tc_get_device_id()
@ -474,10 +489,15 @@ module tb_tk1_spi_master ();
// Send dummy bytes and get response back.
xfer_byte(8'h00, rx_byte);
$display("--- tc_get_jedec_id: Got manufacture ID 0x%02x", rx_byte);
check_byte(rx_byte, 8'hef);
xfer_byte(8'h00, rx_byte);
$display("--- tc_get_jedec_id: Got memory type 0x%02x", rx_byte);
check_byte(rx_byte, 8'h40);
xfer_byte(8'h00, rx_byte);
$display("--- tc_get_jedec_id: Got memory capacity 0x%02x", rx_byte);
check_byte(rx_byte, 8'h14);
disable_spi();
#(2 * CLK_PERIOD);
@ -498,12 +518,22 @@ module tb_tk1_spi_master ();
//----------------------------------------------------------------
task tc_get_unique_device_id;
begin : tc_get_id
reg [7 : 0] expected[0 : 7];
reg [7 : 0] rx_byte;
integer i;
tc_ctr = tc_ctr + 1;
tc_ctr = tc_ctr + 1;
monitor = 0;
verbose = 0;
expected[0] = 8'hdc;
expected[1] = 8'h02;
expected[2] = 8'h03;
expected[3] = 8'h04;
expected[4] = 8'h05;
expected[5] = 8'h06;
expected[6] = 8'h07;
expected[7] = 8'h08;
$display("");
$display("--- tc_get_unique_device_id: Read out unique id from the memory");
$display("--- tc_get_unique_device_id: Expected result: 0xdc02030405060708");
@ -527,6 +557,7 @@ module tb_tk1_spi_master ();
for (i = 0; i < 8; i = i + 1) begin
xfer_byte(8'h00, rx_byte);
$display("--- tc_get_unique_device_id: 0x%02x", rx_byte);
check_byte(rx_byte, expected[i]);
end
disable_spi();
@ -592,12 +623,30 @@ module tb_tk1_spi_master ();
//----------------------------------------------------------------
task tc_read_mem;
begin : tc_get_id
reg [7 : 0] expected[0 : 15];
reg [7 : 0] rx_byte;
integer i;
tc_ctr = tc_ctr + 1;
tc_ctr = tc_ctr + 1;
monitor = 0;
verbose = 0;
expected[0] = 8'hde;
expected[1] = 8'had;
expected[2] = 8'hbe;
expected[3] = 8'hef;
expected[4] = 8'hde;
expected[5] = 8'had;
expected[6] = 8'hbe;
expected[7] = 8'hef;
expected[8] = 8'hde;
expected[9] = 8'had;
expected[10] = 8'hbe;
expected[11] = 8'hef;
expected[12] = 8'hde;
expected[13] = 8'had;
expected[14] = 8'hbe;
expected[15] = 8'hef;
$display("");
$display("--- tc_read_mem: Read out the first 16 bytes from the memory.");
@ -609,7 +658,7 @@ module tb_tk1_spi_master ();
$display("--- tc_read_mem: Sending 0x03 command.");
xfer_byte(8'h03, rx_byte);
// Send adress 0x000000.
// Send address 0x000000.
$display("--- tc_read_mem: Sending 24 bit address 0x000000.");
xfer_byte(8'h00, rx_byte);
xfer_byte(8'h00, rx_byte);
@ -620,6 +669,7 @@ module tb_tk1_spi_master ();
for (i = 1; i < 17; i = i + 1) begin
xfer_byte(8'h00, rx_byte);
$display("--- tc_read_mem: Byte %d: 0x%02x", i, rx_byte);
check_byte(rx_byte, expected[i-1]);
end
disable_spi();
@ -684,6 +734,21 @@ module tb_tk1_spi_master ();
end
endtask // tc_rmr_mem
//----------------------------------------------------------------
// exit_with_error_code()
//
// Exit with the right error code
//----------------------------------------------------------------
task exit_with_error_code;
begin
if (error_ctr == 0) begin
$finish(0);
end
else begin
$fatal(1);
end
end
endtask // exit_with_error_code
//----------------------------------------------------------------
// tk1_spi_master_test
@ -712,7 +777,7 @@ module tb_tk1_spi_master ();
$display(" -= Testbench for tk1_spi_master completed =-");
$display(" =========================================");
$display("");
$finish;
exit_with_error_code();
end // tk1_spi_master_test
endmodule // tb_tk1_spi_master