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example: Clean up and annotate USB UART connections

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Signed-off-by: Alex Forencich <alex@alexforencich.com>
This commit is contained in:
Alex Forencich
2025-03-20 17:32:31 -07:00
parent 315a4715ff
commit c7cf9cc1bf
33 changed files with 177 additions and 157 deletions
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14
example/KC705/fpga/rtl/fpga.sv
View File

@@ -55,8 +55,8 @@ module fpga #
*/
input wire logic uart_rxd,
output wire logic uart_txd,
output wire logic uart_rts,
input wire logic uart_cts,
input wire logic uart_rts,
output wire logic uart_cts,
/*
* Ethernet: SFP+
@@ -251,7 +251,7 @@ debounce_switch_inst (
);
wire uart_rxd_int;
wire uart_cts_int;
wire uart_rts_int;
taxi_sync_signal #(
.WIDTH(2),
@@ -259,8 +259,8 @@ taxi_sync_signal #(
)
sync_signal_inst (
.clk(clk_int),
.in({uart_rxd, uart_cts}),
.out({uart_rxd_int, uart_cts_int})
.in({uart_rxd, uart_rts}),
.out({uart_rxd_int, uart_rts_int})
);
wire [7:0] led_int;
@@ -658,8 +658,8 @@ core_inst (
*/
.uart_rxd(uart_rxd_int),
.uart_txd(uart_txd),
.uart_rts(uart_rts),
.uart_cts(uart_cts_int),
.uart_rts(uart_rts_int),
.uart_cts(uart_cts),
/*
* Ethernet: 1000BASE-X SFP

6
example/KC705/fpga/rtl/fpga_core.sv
View File

@@ -55,8 +55,8 @@ module fpga_core #
*/
input wire logic uart_rxd,
output wire logic uart_txd,
output wire logic uart_rts,
input wire logic uart_cts,
input wire logic uart_rts,
output wire logic uart_cts,
/*
* Ethernet: 1000BASE-X SFP
@@ -106,7 +106,7 @@ module fpga_core #
assign led = sw;
// UART
assign uart_rts = 0;
assign uart_cts = 1'b0;
taxi_axis_if #(.DATA_W(8)) axis_uart();