| Line 53... |
Line 53... |
// command string: "w 4cd9 1a" + CR
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// command string: "w 4cd9 1a" + CR
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send_serial (8'h77, `BAUD_115200, `PARITY_EVEN, `PARITY_OFF, `NSTOPS_1, `NBITS_8, 0);
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send_serial (8'h77, `BAUD_115200, `PARITY_EVEN, `PARITY_OFF, `NSTOPS_1, `NBITS_8, 0);
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#100;
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#100;
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send_serial (8'h20, `BAUD_115200, `PARITY_EVEN, `PARITY_OFF, `NSTOPS_1, `NBITS_8, 0);
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send_serial (8'h20, `BAUD_115200, `PARITY_EVEN, `PARITY_OFF, `NSTOPS_1, `NBITS_8, 0);
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#100;
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#100;
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send_serial (8'h34, `BAUD_115200, `PARITY_EVEN, `PARITY_OFF, `NSTOPS_1, `NBITS_8, 0);
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#100;
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send_serial (8'h63, `BAUD_115200, `PARITY_EVEN, `PARITY_OFF, `NSTOPS_1, `NBITS_8, 0);
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#100;
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send_serial (8'h64, `BAUD_115200, `PARITY_EVEN, `PARITY_OFF, `NSTOPS_1, `NBITS_8, 0);
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send_serial (8'h64, `BAUD_115200, `PARITY_EVEN, `PARITY_OFF, `NSTOPS_1, `NBITS_8, 0);
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#100;
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#100;
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send_serial (8'h39, `BAUD_115200, `PARITY_EVEN, `PARITY_OFF, `NSTOPS_1, `NBITS_8, 0);
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send_serial (8'h39, `BAUD_115200, `PARITY_EVEN, `PARITY_OFF, `NSTOPS_1, `NBITS_8, 0);
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#100;
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#100;
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send_serial (8'h20, `BAUD_115200, `PARITY_EVEN, `PARITY_OFF, `NSTOPS_1, `NBITS_8, 0);
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send_serial (8'h20, `BAUD_115200, `PARITY_EVEN, `PARITY_OFF, `NSTOPS_1, `NBITS_8, 0);
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| Line 134... |
Line 130... |
wire [15:0] int_address; // address bus to register file
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wire [15:0] int_address; // address bus to register file
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wire [7:0] int_wr_data; // write data to register file
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wire [7:0] int_wr_data; // write data to register file
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wire int_write; // write control to register file
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wire int_write; // write control to register file
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wire int_read; // read control to register file
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wire int_read; // read control to register file
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wire [7:0] int_rd_data; // data read from register file
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wire [7:0] int_rd_data; // data read from register file
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wire int_req; // bus access request signal
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wire int_gnt; // bus access grant signal
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wire ser_in; // DUT serial input
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wire ser_in; // DUT serial input
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wire ser_out; // DUT serial output
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wire ser_out; // DUT serial output
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|
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// DUT instance
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// DUT instance
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uart2bus_top uart2bus1
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uart2bus_top uart2bus1
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| Line 148... |
Line 146... |
.ser_out(ser_out),
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.ser_out(ser_out),
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.int_address(int_address),
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.int_address(int_address),
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.int_wr_data(int_wr_data),
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.int_wr_data(int_wr_data),
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.int_write(int_write),
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.int_write(int_write),
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.int_rd_data(int_rd_data),
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.int_rd_data(int_rd_data),
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.int_read(int_read)
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.int_read(int_read),
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.int_req(int_req),
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.int_gnt(int_gnt)
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);
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);
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// bus grant is always active
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assign int_gnt = 1'b1;
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// serial interface to test bench
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// serial interface to test bench
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assign ser_in = serial_out;
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assign ser_in = serial_out;
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always @ (posedge clock) serial_in = ser_out;
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always @ (posedge clock) serial_in = ser_out;
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