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Adding virtual TM1638 for tang_nano_20k_hdmi board #196

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Nov 22, 2024
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Adding virtual TM1638 for tang_nano_20k_hdmi board #196

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74 changes: 65 additions & 9 deletions boards/tang_nano_20k_hdmi_tm1638/board_specific_top.sv
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,11 @@

`ifdef FORCE_NO_INSTANTIATE_TM1638_BOARD_CONTROLLER_MODULE
`undef INSTANTIATE_TM1638_BOARD_CONTROLLER_MODULE
`ifdef INSTANTIATE_GRAPHICS_INTERFACE_MODULE
`ifndef FORCE_NO_VIRTUAL_TM1638_USING_GRAPHICS
`define INSTANTIATE_VIRTUAL_TM1638_USING_GRAPHICS
`endif
`endif
`endif

`define IMITATE_RESET_ON_POWER_UP_FOR_TWO_BUTTON_CONFIGURATION
Expand Down Expand Up @@ -150,9 +155,15 @@ module board_specific_top
wire [w_x - 1:0] x;
wire [w_y - 1:0] y;

wire [w_red - 1:0] red;
wire [w_green - 1:0] green;
wire [w_blue - 1:0] blue;
wire [w_red - 1:0] lab_red;
wire [w_green - 1:0] lab_green;
wire [w_blue - 1:0] lab_blue;

wire vtm_red, vtm_green, vtm_blue;

wire [w_red - 1:0] red = lab_red ^ { w_red { vtm_red } };
wire [w_green - 1:0] green = lab_green ^ { w_green { vtm_green } };
wire [w_blue - 1:0] blue = lab_blue ^ { w_blue { vtm_blue } };

wire [ 23:0] mic;
wire [ 15:0] sound;
Expand Down Expand Up @@ -188,13 +199,28 @@ module board_specific_top
`ifdef INSTANTIATE_TM1638_BOARD_CONTROLLER_MODULE

assign lab_key = tm_key;
assign tm_led = lab_led;
assign tm_digit = lab_digit;

assign LED = w_led' (~ lab_led);

`elsif INSTANTIATE_VIRTUAL_TM1638_USING_GRAPHICS

// Virtual tm1638 - tm_keys are input, not output

`ifdef REVERSE_KEY
`SWAP_BITS (lab_key, ~ KEY);
`else
assign lab_key = ~ KEY;
`endif

assign tm_key = lab_key;
assign tm_led = lab_led;
assign tm_digit = lab_digit;

assign LED = w_led' (~ lab_led);

`else // `ifdef INSTANTIATE_TM1638_BOARD_CONTROLLER_MODULE
`else // no any form of TM1638

`ifdef REVERSE_KEY
`SWAP_BITS (lab_key, KEY);
Expand Down Expand Up @@ -255,9 +281,9 @@ module board_specific_top
.x ( x ),
.y ( y ),

.red ( red ),
.green ( green ),
.blue ( blue ),
.red ( lab_red ),
.green ( lab_green ),
.blue ( lab_blue ),

.uart_rx ( UART_RX ),
.uart_tx ( UART_TX ),
Expand All @@ -269,10 +295,13 @@ module board_specific_top

//------------------------------------------------------------------------

wire [$left (abcdefgh):0] hgfedcba;
`SWAP_BITS (hgfedcba, abcdefgh);

//------------------------------------------------------------------------

`ifdef INSTANTIATE_TM1638_BOARD_CONTROLLER_MODULE

wire [$left (abcdefgh):0] hgfedcba;
`SWAP_BITS (hgfedcba, abcdefgh);

tm1638_board_controller
# (
Expand All @@ -298,6 +327,33 @@ module board_specific_top

`ifdef INSTANTIATE_GRAPHICS_INTERFACE_MODULE

`ifdef INSTANTIATE_VIRTUAL_TM1638_USING_GRAPHICS

virtual_tm1638_using_graphics
# (
.w_digit ( w_tm_digit ),
.screen_width ( screen_width ),
.screen_height ( screen_height )
)
i_tm1638_virtual
(
.clk ( clk ),
.rst ( rst ),
.hgfedcba ( hgfedcba ),
.digit ( tm_digit ),
.ledr ( tm_led ),
.keys ( tm_key ),
.x ( x ),
.y ( y ),
.red ( vtm_red ),
.green ( vtm_green ),
.blue ( vtm_blue )
);

`endif

//--------------------------------------------------------------------

localparam serial_clk_mhz = 125;

wire serial_clk;
Expand Down