From 236b65b93b7326d2c922d4a2e854dad440963f32 Mon Sep 17 00:00:00 2001
From: dwf1m12 <d.w.flynn@soton.ac.uk>
Date: Thu, 3 Oct 2024 12:00:12 +0100
Subject: [PATCH] fix up QuickStart testbench for extio validation
---
verif/tb/verilog/nanosoc_tb_qs.v | 216 +++++++++++++++++++++++++++++--
1 file changed, 202 insertions(+), 14 deletions(-)
diff --git a/verif/tb/verilog/nanosoc_tb_qs.v b/verif/tb/verilog/nanosoc_tb_qs.v
index b0b8597..feb123f 100644
--- a/verif/tb/verilog/nanosoc_tb_qs.v
+++ b/verif/tb/verilog/nanosoc_tb_qs.v
@@ -163,7 +163,8 @@ SROM_Ax32
pullup(P1[ 4]);
pullup(P1[ 5]);
pullup(P1[ 6]);
- pullup(P1[ 7]);
+// pullup(P1[ 7]);
+ pulldown(P1[ 7]);
pullup(P1[ 8]);
pullup(P1[ 9]);
pullup(P1[10]);
@@ -173,6 +174,179 @@ SROM_Ax32
pullup(P1[14]);
pullup(P1[15]);
+`ifdef FAST_SIM
+ parameter FAST_LOAD = 1;
+`else
+ parameter FAST_LOAD = 0;
+`endif
+
+ // --------------------------------------------------------------------------------
+ // EXTIO8x4 stream interface - enabled when P1[7] is low
+ // default in previous testbenches was pullup (for FT1248, UART2)
+ //
+ // v1 mapping was: v2 config
+ // P1[0] - ft_miso_in ioreq1
+ // P1[1] - ft_clk_out ioreq2
+ // P1[2] - ft_miosio_io ioack
+ // P1[3] - ft_ssn_out iodata[0]
+ // P1[4] - uart2_rxd iodata[1]
+ // P1[5] - uart2_txd iodata[2]
+ // P1[6] - reserved (1) iodata[3]
+ // P1[7] - reserved (1) zero
+ // --------------------------------------------------------------------------------
+
+// 4-channel AXIS interface - Subordinate side
+ wire axis_rx0_tready;
+ wire axis_rx0_tvalid;
+ wire [7:0] axis_rx0_tdata8;
+ wire axis_rx1_tready;
+ wire axis_rx1_tvalid;
+ wire [7:0] axis_rx1_tdata8;
+ wire axis_tx0_tready;
+ wire axis_tx0_tvalid;
+ wire [7:0] axis_tx0_tdata8;
+ wire axis_tx1_tready;
+ wire axis_tx1_tvalid;
+ wire [7:0] axis_tx1_tdata8;
+// external io interface
+ tri [3:0] iodata4;
+ wire [3:0] iodata4_i;
+ wire [3:0] iodata4_o;
+ wire [3:0] iodata4_e;
+ wire [3:0] iodata4_t;
+ wire ioreq1;
+ wire ioreq2;
+ wire ioack;
+
+wire test_done;
+
+wire FT1248MODE = P1[7];
+wire end_sim = test_done & !FT1248MODE & !ioreq1 & !ioreq2 & !ioack;
+ always @(posedge PCLK)
+ if (end_sim) begin
+ $stop;
+ end
+
+extio8x4_axis_target u_extio8x4_axis_target
+ (
+ .clk ( CLK ),
+ .resetn ( NRST ),
+ .testmode ( TEST ),
+// RX 4-channel AXIS interface
+ .axis_rx0_tready ( axis_rx0_tready ),
+ .axis_rx0_tvalid ( axis_rx0_tvalid ),
+ .axis_rx0_tdata8 ( axis_rx0_tdata8 ),
+ .axis_rx1_tready ( axis_rx1_tready ),
+ .axis_rx1_tvalid ( axis_rx1_tvalid ),
+ .axis_rx1_tdata8 ( axis_rx1_tdata8 ),
+ .axis_tx0_tready ( axis_tx0_tready ),
+ .axis_tx0_tvalid ( axis_tx0_tvalid ),
+ .axis_tx0_tdata8 ( axis_tx0_tdata8 ),
+ .axis_tx1_tready ( axis_tx1_tready ),
+ .axis_tx1_tvalid ( axis_tx1_tvalid ),
+ .axis_tx1_tdata8 ( axis_tx1_tdata8 ),
+// external io interface
+ .iodata4_i ( iodata4_i ),
+ .iodata4_o ( iodata4_o ),
+ .iodata4_e ( iodata4_e ),
+ .iodata4_t ( iodata4_t ),
+ .ioreq1_a ( ioreq1 ),
+ .ioreq2_a ( ioreq2 ),
+ .ioack_o ( ioack )
+ );
+
+// tristate buffer emulation
+ assign ioreq1 = FT1248MODE ? 1'b0 : P1[0];
+ assign ioreq2 = FT1248MODE ? 1'b0 : P1[1];
+ bufif0 #1 (P1[2], ioack, FT1248MODE);
+ bufif0 #1 (P1[3], iodata4_o[0], (iodata4_t[0] | FT1248MODE));
+ bufif0 #1 (P1[4], iodata4_o[1], (iodata4_t[1] | FT1248MODE));
+ bufif0 #1 (P1[5], iodata4_o[2], (iodata4_t[2] | FT1248MODE));
+ bufif0 #1 (P1[6], iodata4_o[3], (iodata4_t[3] | FT1248MODE));
+ assign iodata4_i = {4{FT1248MODE}} | P1[6:3];
+
+`ifndef COCOTB_SIM
+
+ nanosoc_axi_stream_io_8_txd_from_file #(
+ .TXDFILENAME(ADP_FILENAME),
+// .CODEFILENAME("null.hex"),
+ .FAST_LOAD(FAST_LOAD)
+ ) u_nanosoc_axi_stream_io_adp_txd_from_file (
+ .aclk (CLK),
+ .aresetn (NRST),
+ .txd8_ready (axis_rx0_tready),
+ .txd8_valid (axis_rx0_tvalid),
+ .txd8_data (axis_rx0_tdata8)
+ );
+
+`ifndef COCOTB_SIM
+ nanosoc_axi_stream_io_8_rxd_to_file#(
+ .RXDFILENAME("logs/extadp_in.log")
+ ) u_nanosoc_axi_stream_io_8_adprxd_to_file (
+ .aclk (CLK),
+ .aresetn (NRST),
+ .eof_received ( ),
+ .rxd8_ready ( ), //axis_rx0_tready),
+ .rxd8_valid (axis_rx0_tvalid & axis_rx0_tready),
+ .rxd8_data (axis_rx0_tdata8)
+ );
+`endif
+
+/*
+ nanosoc_axi_stream_io_8_txd_from_file #(
+ .TXDFILENAME(ADP_FILENAME),
+// .CODEFILENAME("null.hex"),
+ .FAST_LOAD(FAST_LOAD)
+ ) u_nanosoc_axi_stream_io_dat_txd_from_file (
+ .aclk (CLK),
+ .aresetn (NRST),
+ .txd8_ready (axis_rx1_tready),
+ .txd8_valid (axis_rx1_tvalid),
+ .txd8_data (axis_rx1_tdata8)
+ );
+*/
+
+ nanosoc_axi_stream_io_8_rxd_to_file#(
+ .RXDFILENAME("logs/extadp_out.log"),
+ .VERBOSE(0)
+ ) u_nanosoc_axi_stream_io_stream_adp_rxd_to_file (
+ .aclk (CLK),
+ .aresetn (NRST),
+ .eof_received (test_done),
+ .rxd8_ready (axis_tx0_tready),
+ .rxd8_valid (axis_tx0_tvalid),
+ .rxd8_data (axis_tx0_tdata8)
+ );
+
+ soclabs_axis8_capture #(.LOGFILENAME("logs/extio_adp_out.log"))
+ u_soclabs_axis8_capture1(
+ .RESETn (NRST),
+ .CLK (CLK),
+ .RXD8_READY ( ),
+ .RXD8_VALID (axis_tx0_tvalid & axis_tx0_tready),
+ .RXD8_DATA (axis_tx0_tdata8),
+ .DEBUG_TESTER_ENABLE ( ),
+ .SIMULATIONEND (), // This signal set to 1 at the end of simulation.
+ .AUXCTRL ()
+ );
+
+
+ nanosoc_axi_stream_io_8_rxd_to_file#(
+ .RXDFILENAME("logs/extdat_out.log")
+ ) u_nanosoc_axi_stream_io_extdata_8_rxd_to_file (
+ .aclk (CLK),
+ .aresetn (NRST),
+ .eof_received ( ),
+ .rxd8_ready ( ), //axis_tx1_tready),
+ .rxd8_valid (axis_tx1_tvalid & axis_tx1_tready),
+ .rxd8_data (axis_tx1_tdata8)
+ );
+
+assign axis_tx1_tready = axis_rx1_tready;
+assign axis_rx1_tvalid = axis_tx1_tvalid;
+assign axis_rx1_tdata8 = axis_tx1_tdata8;
+`endif
+
// --------------------------------------------------------------------------------
// UART output capture
// --------------------------------------------------------------------------------
@@ -271,12 +445,35 @@ reg baud_clk_del;
// assign P1[0] = P1[3]; // UART 0 RXD = UART 1 TXD
// assign P1[2] = P1[1]; // UART 1 RXD = UART 0 TXD
- assign P1[4] = P1[5]; // loopback UART2
+ // --------------------------------------------------------------------------------
+ // FTDI IO capture
+ // --------------------------------------------------------------------------------
+
+ // UART connection
+/// assign P1[4] = P1[5]; // loopback UART2
- wire ft_clk_out = P1[1];
+ bufif1 #1 (P1[4], P1[5], FT1248MODE);
+
+/// wire ft_clk_out = P1[1];
+/// wire ft_miso_in;
+/// assign P1[0] = ft_miso_in;
+/// wire ft_ssn_out = P1[3];
+
+ wire ft_clk_out;
wire ft_miso_in;
- assign P1[0] = ft_miso_in;
- wire ft_ssn_out = P1[3];
+ wire ft_ssn_out;
+
+ assign ft_clk_out = (FT1248MODE) ? P1[1] : 1'b0;
+ bufif1 #1 (P1[0], ft_miso_in, FT1248MODE);
+ assign ft_ssn_out = (FT1248MODE) ? P1[3] : 1'b1;
+
+ wire ft_miosio_o;
+ wire ft_miosio_z;
+ wire ft_miosio_i;
+/// assign ft_miosio_i = P1[2]; // & ft_miosio_z;
+/// assign P1[2] = (ft_miosio_z) ? 1'bz : ft_miosio_o;
+ assign ft_miosio_i = (FT1248MODE) ? P1[2] : 1'b0; // & ft_miosio_z;
+ bufif1 #1 (P1[2], ft_miosio_o, (FT1248MODE & !ft_miosio_z));
//
// AXI stream io testing
@@ -290,11 +487,6 @@ reg baud_clk_del;
wire rxd8_tvalid;
wire [7:0] rxd8_tdata ;
-`ifdef FAST_SIM
- parameter FAST_LOAD = 1;
-`else
- parameter FAST_LOAD = 0;
-`endif
`ifndef COCOTB_SIM
nanosoc_axi_stream_io_8_txd_from_file #(
@@ -309,10 +501,6 @@ reg baud_clk_del;
);
`endif
- wire ft_miosio_o;
- wire ft_miosio_z;
- wire ft_miosio_i = P1[2]; // & ft_miosio_z;
- assign P1[2] = (ft_miosio_z) ? 1'bz : ft_miosio_o;
nanosoc_ft1248x1_to_axi_streamio_v1_0 u_nanosoc_ft1248x1_to_axi_streamio_v1_0
(
--
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