From a1fbfe118871207a64b214e43105567947a4130c Mon Sep 17 00:00:00 2001 From: Bee Date: Wed, 15 Nov 2023 16:49:24 -0500 Subject: [PATCH] haha nevermind it's just uart --- holeybeepo.gprj.user | 2 +- src/beepo.v | 11 ++++- src/holeybeepo.cst | 22 +++++++++ src/multi7.v | 112 +++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 145 insertions(+), 2 deletions(-) create mode 100644 src/multi7.v diff --git a/holeybeepo.gprj.user b/holeybeepo.gprj.user index 080c63f..531b4b5 100644 --- a/holeybeepo.gprj.user +++ b/holeybeepo.gprj.user @@ -20,5 +20,5 @@ - 000000ff00000001fd000000020000000000000100000002cafc0200000001fc00000038000002ca0000008a01000018fa000000020200000004fb00000030004600700067006100500072006f006a006500630074002e00500061006e0065006c002e00440065007300690067006e0100000000ffffffff0000005600fffffffb00000036004600700067006100500072006f006a006500630074002e00500061006e0065006c002e0048006900650072006100720063006800790100000000ffffffff0000007100fffffffb00000032004600700067006100500072006f006a006500630074002e00500061006e0065006c002e00500072006f00630065007300730100000000ffffffff0000005200fffffffb00000030004600700067006100500072006f006a006500630074002e00500061006e0065006c002e00440065007300690067006e0100000000ffffffff00000000000000000000000300000776000000f2fc0100000001fc0000000000000776000000a500fffffffa000000000100000003fb00000032004600700067006100500072006f006a006500630074002e00500061006e0065006c002e00470065006e006500720061006c0100000000ffffffff0000004700fffffffb0000002e004600700067006100500072006f006a006500630074002e00500061006e0065006c002e004900730073007500650100000000ffffffff000000a500fffffffb00000032004600700067006100500072006f006a006500630074002e00500061006e0065006c002e00470065006e006500720061006c0100000000ffffffff000000000000000000000670000002ca00000004000000040000000800000008fc000000010000000200000004000000220043006f00720065002e0054006f006f006c006200610072002e00460069006c00650100000000ffffffff0000000000000000000000220043006f00720065002e0054006f006f006c006200610072002e0045006400690074010000009bffffffff0000000000000000000000240043006f00720065002e0054006f006f006c006200610072002e0054006f006f006c00730100000157ffffffff0000000000000000ffffffff0100000207ffffffff0000000000000000 + 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 diff --git a/src/beepo.v b/src/beepo.v index bb4b706..af0e65a 100644 --- a/src/beepo.v +++ b/src/beepo.v @@ -5,7 +5,9 @@ module Beepo #( ) ( input i_clk, input i_button1, - output o_uart_tx + output o_uart_tx, + output [6:0] o_segments_drive, + output [3:0] o_displays_neg ); // State values localparam IDLE = 0; // Start fetching instruction @@ -192,6 +194,13 @@ module Beepo #( .tx_pin(o_uart_tx) ); + Multi7 display ( + .i_clk(i_clk), + .i_hex({r_registers[1][7:0], r_registers[2][7:0]}), + .o_segments_drive(o_segments_drive), + .o_displays_neg(o_displays_neg) + ); + // TODO: Bus // For now this is just ROM spMem memory ( diff --git a/src/holeybeepo.cst b/src/holeybeepo.cst index 36a3edc..2ab57c2 100644 --- a/src/holeybeepo.cst +++ b/src/holeybeepo.cst @@ -11,3 +11,25 @@ IO_LOC "o_uart_tx" 69; IO_PORT "o_uart_tx" PULL_MODE=UP DRIVE=8 BANK_VCCIO=1.8; IO_LOC "i_clk" 4; IO_PORT "i_clk" PULL_MODE=UP BANK_VCCIO=1.8; +IO_LOC "o_displays_neg[3]" 80; +IO_PORT "o_displays_neg[3]" PULL_MODE=UP DRIVE=8 BANK_VCCIO=1.8; +IO_LOC "o_displays_neg[2]" 76; +IO_PORT "o_displays_neg[2]" PULL_MODE=UP DRIVE=8 BANK_VCCIO=1.8; +IO_LOC "o_displays_neg[1]" 73; +IO_PORT "o_displays_neg[1]" PULL_MODE=UP DRIVE=8 BANK_VCCIO=1.8; +IO_LOC "o_displays_neg[0]" 74; +IO_PORT "o_displays_neg[0]" PULL_MODE=UP DRIVE=8 BANK_VCCIO=1.8; +IO_LOC "o_segments_drive[6]" 20; +IO_PORT "o_segments_drive[6]" PULL_MODE=UP DRIVE=8 BANK_VCCIO=1.8; +IO_LOC "o_segments_drive[5]" 19; +IO_PORT "o_segments_drive[5]" PULL_MODE=UP DRIVE=8 BANK_VCCIO=1.8; +IO_LOC "o_segments_drive[4]" 86; +IO_PORT "o_segments_drive[4]" PULL_MODE=UP DRIVE=8 BANK_VCCIO=1.8; +IO_LOC "o_segments_drive[3]" 53; +IO_PORT "o_segments_drive[3]" PULL_MODE=UP DRIVE=8 BANK_VCCIO=1.8; +IO_LOC "o_segments_drive[2]" 71; +IO_PORT "o_segments_drive[2]" PULL_MODE=UP DRIVE=8 BANK_VCCIO=1.8; +IO_LOC "o_segments_drive[1]" 18; +IO_PORT "o_segments_drive[1]" PULL_MODE=UP DRIVE=8 BANK_VCCIO=1.8; +IO_LOC "o_segments_drive[0]" 72; +IO_PORT "o_segments_drive[0]" PULL_MODE=UP DRIVE=8 BANK_VCCIO=1.8; \ No newline at end of file diff --git a/src/multi7.v b/src/multi7.v new file mode 100644 index 0000000..3056e31 --- /dev/null +++ b/src/multi7.v @@ -0,0 +1,112 @@ +// displays multiple BCD digits on multiplexed seven segment displays +module Multi7 #( + parameter DISPLAYS = 4, + parameter FREQ = 27_000_000, + parameter DELAY_US = 5000, + parameter integer DELAY = FREQ * (DELAY_US / 1_000_000.0), + parameter ENABLE_HEX = 1, + parameter ENABLE_CUSTOM = 0 +) ( + i_clk, + i_hex, + i_custom, + i_mode, // if hex and custom are both enabled, 0 selects hex mode and 1 selects custom + o_segments_drive, + o_displays_neg +); + + localparam d_0 = 7'b1111110; + localparam d_1 = 7'b0110000; + localparam d_2 = 7'b1101101; + localparam d_3 = 7'b1111001; + localparam d_4 = 7'b0110011; + localparam d_5 = 7'b1011011; + localparam d_6 = 7'b1011111; + localparam d_7 = 7'b1110000; + localparam d_8 = 7'b1111111; + localparam d_9 = 7'b1111011; + localparam d_a = 7'b1110111; + localparam d_b = 7'b0011111; + localparam d_c = 7'b1001110; + localparam d_d = 7'b0111101; + localparam d_e = 7'b1001111; + localparam d_f = 7'b1000111; + + input i_clk, i_mode; + input [(ENABLE_HEX * (DISPLAYS*4-1)):0] i_hex; + input [(ENABLE_CUSTOM * (DISPLAYS*7-1)):0] i_custom; + + // 6543210 + // gfedcba + output [6:0] o_segments_drive; + output [(DISPLAYS-1):0] o_displays_neg; + + reg [$clog2(DELAY):0] r_tick = 0; + reg [(DISPLAYS*7-1):0] r_hex_state; + reg [$clog2(DISPLAYS):0] r_display_select = 0; + reg [(DISPLAYS-1):0] r_displays_neg = ~1; + reg [6:0] r_display_output; + + assign o_segments_drive = r_display_output; + assign o_displays_neg = r_displays_neg; + + always @(posedge i_clk) begin + if (r_tick == DELAY - 1) begin + r_tick <= 0; + r_displays_neg <= (r_displays_neg << 1) | r_displays_neg[DISPLAYS-1]; + + if (r_display_select == DISPLAYS - 1) begin + r_display_select <= 0; + end else begin + r_display_select <= r_display_select + 1; + end + end else begin + r_tick <= r_tick + 1; + end + end + + generate + if (ENABLE_HEX) begin + for (genvar i = 0; i < DISPLAYS; i = i + 1) begin + localparam TOP = i * 4 + 4 - 1; + localparam BOTTOM = i * 4; + localparam G = i * 7 + 7 - 1; + localparam A = i * 7; + + always @(i_hex[(TOP):(BOTTOM)]) begin + case (i_hex[(TOP):(BOTTOM)]) + 4'h0: r_hex_state[G:A] <= d_0; + 4'h1: r_hex_state[G:A] <= d_1; + 4'h2: r_hex_state[G:A] <= d_2; + 4'h3: r_hex_state[G:A] <= d_3; + 4'h4: r_hex_state[G:A] <= d_4; + 4'h5: r_hex_state[G:A] <= d_5; + 4'h6: r_hex_state[G:A] <= d_6; + 4'h7: r_hex_state[G:A] <= d_7; + 4'h8: r_hex_state[G:A] <= d_8; + 4'h9: r_hex_state[G:A] <= d_9; + 4'hA: r_hex_state[G:A] <= d_a; + 4'hB: r_hex_state[G:A] <= d_b; + 4'hC: r_hex_state[G:A] <= d_c; + 4'hD: r_hex_state[G:A] <= d_d; + 4'hE: r_hex_state[G:A] <= d_e; + 4'hF: r_hex_state[G:A] <= d_f; + endcase + end + end + end + endgenerate + + generate + if (ENABLE_HEX && ENABLE_CUSTOM) begin + always @(r_hex_state or i_custom or i_mode or r_display_select) + r_display_output <= (i_mode ? i_custom : r_hex_state) >> (r_display_select * 7); + end else if (ENABLE_HEX) begin + always @(r_hex_state or r_display_select) + r_display_output <= r_hex_state >> (r_display_select * 7); + end else if (ENABLE_CUSTOM) begin + always @(i_custom or r_display_select) + r_display_output <= i_custom >> (r_display_select * 7); + end + endgenerate +endmodule