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board_specific_top.sv
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`include "config.svh"
`include "lab_specific_board_config.svh"
`undef INSTANTIATE_TM1638_BOARD_CONTROLLER_MODULE // uses GPIO 0,1 and 2
//`undef INSTANTIATE_MICROPHONE_INTERFACE_MODULE // uses GPIO 3,4,5 and 6
//`undef INSTANTIATE_SOUND_OUTPUT_INTERFACE_MODULE // uses GPIO 3,4,5 and 6
//`undef INSTANTIATE_GRAPHICS_INTERFACE_MODULE
//`undef HAVE_PCM5102
module board_specific_top
# (
parameter clk_mhz = 48,
pixel_mhz = 25,
w_key = 2,
w_sw = 2,
w_led = 3,
w_digit = 0,
w_gpio = 8, // gpio[6] and gpio[7] are on SD card slot
screen_width = 640,
screen_height = 480,
w_red = 4,
w_green = 4,
w_blue = 4,
w_x = $clog2 ( screen_width ),
w_y = $clog2 ( screen_height )
)
(
input CLK,
input [w_key - 1:0] KEY,
input [w_sw - 1:0] SW,
input UART_RX,
output UART_TX,
output [w_led - 1:0] LED,
output VGA_HS,
output VGA_VS,
output [w_red - 1:0] VGA_R,
output [w_green - 1:0] VGA_G,
output [w_blue - 1:0] VGA_B,
inout [w_gpio - 1:0] GPIO
);
wire clk = CLK;
//------------------------------------------------------------------------
localparam w_tm_key = 8,
w_tm_led = 8,
w_tm_digit = 8;
//------------------------------------------------------------------------
`ifdef INSTANTIATE_TM1638_BOARD_CONTROLLER_MODULE
localparam w_lab_key = w_tm_key,
w_lab_sw = w_sw,
w_lab_led = w_tm_led,
w_lab_digit = w_tm_digit;
`else // TM1638 module is not connected
localparam w_lab_key = w_key,
w_lab_sw = w_sw,
w_lab_led = w_led,
w_lab_digit = w_digit;
`endif
//------------------------------------------------------------------------
wire [w_tm_key - 1:0] tm_key;
wire [w_tm_led - 1:0] tm_led;
wire [w_tm_digit - 1:0] tm_digit;
wire [w_lab_key - 1:0] lab_key;
wire [w_lab_led - 1:0] lab_led;
wire [w_lab_digit - 1:0] lab_digit;
wire rst;
wire [ 7:0] abcdefgh;
wire [ 23:0] mic;
wire [ 15:0] sound;
wire [w_x - 1:0] x;
wire [w_y - 1:0] y;
//------------------------------------------------------------------------
`ifdef INSTANTIATE_TM1638_BOARD_CONTROLLER_MODULE
assign rst = tm_key [w_tm_key - 1];
assign lab_key = tm_key [w_tm_key - 1:0];
assign tm_led = lab_led;
assign tm_digit = lab_digit;
assign LED = lab_led;
`else // TM1638 module is not connected
assign rst = '0; // OrangeCrab has two keys and
// and dedicated reset button.
assign lab_key = ~ KEY [w_key - 1:0];
assign LED = ~ lab_led;
`endif
//------------------------------------------------------------------------
wire slow_clk;
wire slow_clk_local;
slow_clk_gen # (.fast_clk_mhz (clk_mhz), .slow_clk_hz (1))
i_slow_clk_gen (.slow_clk (slow_clk_local), .*);
DCCA slow_clk_buf (.CLKI(slow_clk_local), .CLKO(slow_clk), .CE(1));
//------------------------------------------------------------------------
lab_top
# (
.clk_mhz ( clk_mhz ),
.w_key ( w_lab_key ), // The last key is used for a reset
.w_sw ( w_lab_sw ),
.w_led ( w_lab_led ),
.w_digit ( w_lab_digit ),
.w_gpio ( w_gpio ),
.screen_width ( screen_width ),
.screen_height ( screen_height ),
.w_red ( w_red ),
.w_green ( w_green ),
.w_blue ( w_blue )
)
i_lab_top
(
.clk ( clk ),
.slow_clk ( slow_clk ),
.rst ( rst ),
.key ( lab_key ),
.sw ( ),
.led ( lab_led ),
.abcdefgh ( abcdefgh ),
.digit ( lab_digit ),
.x ( x ),
.y ( y ),
.red ( VGA_R ),
.green ( VGA_G ),
.blue ( VGA_B ),
.uart_rx ( UART_RX ),
.uart_tx ( UART_TX ),
`ifndef INSTANTIATE_TM1638_BOARD_CONTROLLER_MODULE
`ifndef INSTANTIATE_MICROPHONE_INTERFACE_MODULE
`ifndef INSTANTIATE_SOUND_OUTPUT_INTERFACE_MODULE
`ifndef INSTANTIATE_GRAPHICS_INTERFACE_MODULE
.gpio ( GPIO ),
`endif
`endif
`endif
`endif
.mic ( mic ),
.sound ( sound )
);
//------------------------------------------------------------------------
wire [$left (abcdefgh):0] hgfedcba;
generate
genvar i;
for (i = 0; i < $bits (abcdefgh); i ++)
begin : abc
assign hgfedcba [i] = abcdefgh [$left (abcdefgh) - i];
end
endgenerate
//------------------------------------------------------------------------
`ifdef INSTANTIATE_TM1638_BOARD_CONTROLLER_MODULE
tm1638_board_controller
# (
.clk_mhz ( clk_mhz ),
.w_digit ( w_tm_digit )
)
i_tm1638
(
.clk ( clk ),
.rst ( rst ),
.hgfedcba ( hgfedcba ),
.digit ( tm_digit ),
.ledr ( tm_led ),
.keys ( tm_key ),
.sio_clk ( GPIO [0] ),
.sio_stb ( GPIO [1] ),
.sio_data ( GPIO [2] )
);
`endif
//------------------------------------------------------------------------
`ifdef INSTANTIATE_GRAPHICS_INTERFACE_MODULE
wire [9:0] x10; assign x = x10;
wire [9:0] y10; assign y = y10;
vga
# (
.CLK_MHZ ( clk_mhz ),
.PIXEL_MHZ ( pixel_mhz )
)
i_vga
(
.clk ( clk ),
.rst ( rst ),
.hsync ( VGA_HS ),
.vsync ( VGA_VS ),
.display_on ( ),
.hpos ( x10 ),
.vpos ( y10 ),
.pixel_clk ( )
);
`endif
//------------------------------------------------------------------------
`ifdef INSTANTIATE_MICROPHONE_INTERFACE_MODULE
inmp441_mic_i2s_receiver
# (
.clk_mhz ( clk_mhz )
)
i_microphone
(
.clk ( clk ),
.rst ( rst ),
.lr ( GPIO [3] ),
.ws ( GPIO [4] ),
.sck ( GPIO [5] ),
.sd ( GPIO [6] ),
.value ( mic )
);
`endif
//------------------------------------------------------------------------
`ifdef INSTANTIATE_SOUND_OUTPUT_INTERFACE_MODULE
`ifdef HAVE_PCM5102
i2s_audio_out
# (
.clk_mhz ( clk_mhz )
)
inst_pcm5102
(
.clk ( clk ),
.reset ( rst ),
.data_in ( sound ),
.mclk ( GPIO [3] ),
.bclk ( GPIO [4] ),
.sdata ( GPIO [5] ),
.lrclk ( GPIO [6] )
);
`else
i2s_audio_out
# (
.clk_mhz ( clk_mhz )
)
inst_pmod_amp3
(
.clk ( clk ),
.reset ( rst ),
.data_in ( sound ),
.mclk ( GPIO [3] ),
.bclk ( GPIO [4] ),
.sdata ( GPIO [5] ),
.lrclk ( GPIO [6] )
);
`endif
`endif
endmodule