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@ -1,4 +1,4 @@
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module matrix_kbd (input CLK, input RESET, input FREEZE, inout [15:0] ROWS, input [7:0] COLUMNS, output [7:0] kbd_r0, kbd_r2, kbd_r3, kbd_r4, kbd_r5, kbd_r6, kbd_r7, output INT);
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module matrix_kbd (input CLK, input RESET, input FREEZE, inout [15:0] ROWS, input [7:0] COLUMNS, output [7:0] kbd_r0, kbd_r2, kbd_r3, kbd_r4, kbd_r5, kbd_r6, kbd_r7,/*output [63:0] kbd_report,*/ output INT);
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// * - ESC (29), 7 - F1 (3A), 4 - F2 (3B), 1 - NUM_LOCK (53)
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// 0 - CAPS LOCK (39), 8 - R (15), 5 - BACKSPACE (2A), 2 - ENTER (58)
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@ -12,10 +12,13 @@ module matrix_kbd (input CLK, input RESET, input FREEZE, inout [15:0] ROWS, inpu
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reg [15:0] row_time = 0;
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reg [3:0] row_counter;
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//reg [7:0] last_data [3:0];//[31:0] last_data;
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reg [7:0] temp;
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reg [7:0] i;
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//reg [63:0] report;
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reg [7:0] report [6:0]; // NO BYTE 2
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//reg [5:0] report_free_place;
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reg isr;
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reg [15:0] ROWS_EN = 0;
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@ -31,124 +34,221 @@ module matrix_kbd (input CLK, input RESET, input FREEZE, inout [15:0] ROWS, inpu
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reg [8:0] ram_adr;
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wire [7:0] ram_rd;
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reg [8:0] init_ram_cnt;
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always @ (negedge CLK) begin
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COLS_SHADOW <= COLUMNS;
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end
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ram RAM (CLK, ram_wr, ram_adr, temp, ram_adr, ram_rd);//module ram(input clk, wen, input [8:0] addr, input [7:0] wdata, output [7:0] rdata);
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ram RAM (CLK, ram_wr, ram_adr, temp, ram_rd);//module ram(input clk, wen, input [8:0] addr, input [7:0] wdata, output [7:0] rdata);
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always @ (posedge CLK) begin
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if (RESET == 0) begin
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for (i = 0; i < 6; i = i + 1)
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report[i] = 0;
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isr = 0;
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init_ram_cnt = 0;
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//last_data <= 32'hFFFFFFFF;
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//report_free_place <= 6'h3F;
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//report <= 0;
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end
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else begin
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if (FREEZE == 0) begin
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if (init_ram_cnt < 256) begin
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if (row_time == ONE_ROW_TIME) begin
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ram_wr = 0;
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row_time <= 0;
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row_counter = row_counter + 1;
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ROWS_EN = 1 << row_counter;
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ram_adr = row_counter;
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end
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else
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row_time <= row_time + 1;
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// ROW 0 - D, 1 - A, 2 - C, 3 - B
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if (row_time == (ROW_STT_PROCESS_TIME - 1))
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temp = ram_rd;
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if (row_time == (ROW_STT_PROCESS_TIME + ONE_COLUMN_PROCESS_TIME * 7 + 1))
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ram_wr = 1;
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ram_adr = init_ram_cnt;
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temp = 255;
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init_ram_cnt = init_ram_cnt + 1;
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if (row_time == (ROW_STT_PROCESS_TIME + ONE_COLUMN_PROCESS_TIME * 0/*0*/)) begin
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check_column (0);
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/*if (COLS_SHADOW[0] != last_data[row_counter*4 + 0]) begin
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case (row_counter) 0: kbd_code = 8'h29; 1: kbd_code = 8'h53; 2: kbd_code = 8'h3A; 3: kbd_code = 8'h3B; // ESC, F1-F2, NUM LOCK
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default: kbd_code = 1;
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endcase
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if ((COLS_SHADOW[0] == 0) && (last_data[row_counter*4 + 0] == 1)) is_pressed = 1;
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else is_pressed = 0;
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end
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else kbd_code = 255;
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last_data[row_counter*4 + 0] <= COLS_SHADOW[0];*/
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end
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else if (init_ram_cnt == 256) begin
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ram_wr = 0;
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init_ram_cnt = init_ram_cnt + 1;
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else if (row_time == (ROW_STT_PROCESS_TIME + ONE_COLUMN_PROCESS_TIME * 2/*4*/)) begin
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check_column (2);
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end
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else begin
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if (row_time == ONE_ROW_TIME) begin
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ram_wr = 0;
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row_time <= 0;
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row_counter = row_counter + 1;
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ROWS_EN = 1 << row_counter;
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ram_adr = row_counter;
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/*if (COLS_SHADOW[2] != last_data[row_counter*4 + 2]) begin
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case (row_counter) 0: kbd_code = 8'h39; 1: kbd_code = 8'h58; 2: kbd_code = 8'h15; 3: kbd_code = 8'h2A; // CAPS LOCK, R, BACKSPACE, ENTER
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default: kbd_code = 1;
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endcase
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if ((COLS_SHADOW[2] == 0) && (last_data[row_counter*4 + 2] == 1)) is_pressed = 1;
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else is_pressed = 0;
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end
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else
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row_time <= row_time + 1;
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// ROW 0 - D, 1 - A, 2 - C, 3 - B
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if (row_time == (ROW_STT_PROCESS_TIME - 1))
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temp = ram_rd;
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if (row_time == (ROW_STT_PROCESS_TIME + ONE_COLUMN_PROCESS_TIME * 7 + 1))
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ram_wr = 1;
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if (row_time == (ROW_STT_PROCESS_TIME + ONE_COLUMN_PROCESS_TIME * 0))
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check_column (0);
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else if (row_time == (ROW_STT_PROCESS_TIME + ONE_COLUMN_PROCESS_TIME * 2))
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check_column (2);
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else if (row_time == (ROW_STT_PROCESS_TIME + ONE_COLUMN_PROCESS_TIME * 1))
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check_column (1);
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else if (row_time == (ROW_STT_PROCESS_TIME + ONE_COLUMN_PROCESS_TIME * 3))
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check_column (3);
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else if (row_time == (ROW_STT_PROCESS_TIME + ONE_COLUMN_PROCESS_TIME * 4))
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check_column (4);
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else if (row_time == (ROW_STT_PROCESS_TIME + ONE_COLUMN_PROCESS_TIME * 5))
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check_column (5);
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else if (row_time == (ROW_STT_PROCESS_TIME + ONE_COLUMN_PROCESS_TIME * 6))
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check_column (6);
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else if (row_time == (ROW_STT_PROCESS_TIME + ONE_COLUMN_PROCESS_TIME * 7))
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check_column (7);
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else
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kbd_code = 255;
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// START PACK I2C_HID REPORT
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if (kbd_code_hid != 0) begin
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if ((kbd_code_hid > 8'hDF) && (kbd_code_hid < 8'hE8)) begin
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if (is_pressed)
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report [0] = report [0] | (1<<(kbd_code_hid & 8'h07));
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else
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report [0] <= report [0] & (~(1<<(kbd_code_hid & 8'h07)));
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end
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else begin
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if (is_pressed) begin
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isr = 1;
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if (report [ 1 ] == 0)
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report [ 1 ] <= kbd_code_hid;
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else if (report [ 2 ] == 0)
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report [ 2 ] <= kbd_code_hid;
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else if (report [ 3 ] == 0)
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report [ 3 ] <= kbd_code_hid;
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else if (report [ 4 ] == 0)
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report [ 4 ] <= kbd_code_hid;
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else if (report [ 5 ] == 0)
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report [ 5 ] <= kbd_code_hid;
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else if (report [ 6 ] == 0)
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report [ 6 ] <= kbd_code_hid;
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else
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isr = 0;
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else kbd_code = 0;
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last_data[row_counter*4 + 2] <= COLS_SHADOW[2];
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end*/
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else if (row_time == (ROW_STT_PROCESS_TIME + ONE_COLUMN_PROCESS_TIME * 1/*2*/)) begin
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check_column (1);
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/*
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if (COLS_SHADOW[1] != last_data[row_counter*4 + 1]) begin
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case (row_counter) 0: kbd_code = 8'hE1; 1: kbd_code = 8'h4C; 2: kbd_code = 8'h06; 3: kbd_code = 8'h19; // LEFT SHIFT, C, V, DELETE
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default: kbd_code = 1;
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endcase
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if ((COLS_SHADOW[1] == 0) && (last_data[row_counter*4 + 1] == 1)) is_pressed = 1;
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else is_pressed = 0;
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end
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else kbd_code = 255;
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last_data[row_counter*4 + 1] <= COLS_SHADOW[1];*/
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end
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else if (row_time == (ROW_STT_PROCESS_TIME + ONE_COLUMN_PROCESS_TIME * 3/*6*/)) //begin
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check_column (3);
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else if (row_time == (ROW_STT_PROCESS_TIME + ONE_COLUMN_PROCESS_TIME * 4/*6*/))
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check_column (4);
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else if (row_time == (ROW_STT_PROCESS_TIME + ONE_COLUMN_PROCESS_TIME * 5/*6*/))
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check_column (5);
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else if (row_time == (ROW_STT_PROCESS_TIME + ONE_COLUMN_PROCESS_TIME * 6/*6*/))
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check_column (6);
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else if (row_time == (ROW_STT_PROCESS_TIME + ONE_COLUMN_PROCESS_TIME * 7/*6*/))
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check_column (7);
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/*
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if (COLS_SHADOW[3] != last_data[row_counter*4 + 3]) begin
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case (row_counter) 0: kbd_code = 8'hE0; 1: kbd_code = 8'hE7; 2: kbd_code = 8'hE2; 3: kbd_code = 8'h2C; // LCTRL, LALT, SPACE, RGUI
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default: kbd_code = 1;
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endcase
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if ((COLS_SHADOW[3] == 0) && (last_data[row_counter*4 + 3] == 1)) is_pressed = 1;
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else is_pressed = 0;
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end
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else kbd_code = 255;
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last_data[row_counter*4 + 3] <= COLS_SHADOW[3];
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*/
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//end
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else
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kbd_code = 255;
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// START PACK I2C_HID REPORT
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if (kbd_code_hid != 0 /*kbd_code != 255*/) begin
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isr = 1;
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//report[15:8] <= 0;
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//report[63:56] <= 0;
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if ((kbd_code_hid > 8'hDF) && (kbd_code_hid < 8'hE8))/*((kbd_code > 8'hDF) && (kbd_code < 8'hE8))*/ begin
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//kbd_code = kbd_code & 8'h07;
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if (is_pressed)
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//report [7:0] <= report [7:0] | (1<<(kbd_code_hid & 8'h07));//(1<<kbd_code);
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report [0] = report [0] | (1<<(kbd_code_hid & 8'h07));//(1<<kbd_code);
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else
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report [0] <= report [0] & (~(1<<(kbd_code_hid & 8'h07)));//(~(1<<kbd_code));
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//report [7:0] <= report [7:0] & (~(1<<(kbd_code_hid & 8'h07)));//(~(1<<kbd_code));
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end
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else begin
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if (is_pressed) begin
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/*for (i = 0; i < 4; i = i + 1) begin
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if (report_free_place[i] == 1) begin
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report [ ((i + 2) * 8 + 7) : ((i + 2) * 8 + 0)] <= kbd_code;
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report_free_place[i] = 0;
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is_pressed = 0; // NO ERROR DETECTED
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end
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end
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if (report_free_place[0] == 1) begin
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report [ ((0 + 2) * 8 + 7) : ((0 + 2) * 8 + 0)] <= kbd_code;
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report_free_place[0] = 0;
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end*/
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if (report [ 1 ] == 0)
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report [ 1 ] <= kbd_code_hid;//kbd_code;
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else if (report [ 2 ] == 0)
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report [ 2 ] <= kbd_code_hid;//kbd_code;
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else if (report [ 3 ] == 0)
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report [ 3 ] <= kbd_code_hid;//kbd_code;
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else if (report [ 4 ] == 0)
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report [ 4 ] <= kbd_code_hid;//kbd_code;
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else if (report [ 5 ] == 0)
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report [ 5 ] <= kbd_code_hid;//kbd_code;
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else if (report [ 6 ] == 0)
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report [ 6 ] <= kbd_code_hid;//kbd_code;
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/*if (report [ 23 : 16 ] == 0)
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report [ 23 : 16 ] <= kbd_code_hid;//kbd_code;
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else if (report [ 31 : 24 ] == 0)
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report [ 31 : 24 ] <= kbd_code_hid;//kbd_code;
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else if (report [ 39 : 32 ] == 0)
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report [ 39 : 32 ] <= kbd_code_hid;//kbd_code;
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else if (report [ 47 : 40 ] == 0)
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report [ 47 : 40 ] <= kbd_code_hid;//kbd_code;
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else if (report [ 55 : 48 ] == 0)
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report [ 55 : 48 ] <= kbd_code_hid;//kbd_code;
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else if (report [ 63 : 56 ] == 0)
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report [ 63 : 56 ] <= kbd_code_hid;//kbd_code;*/
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end
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else begin
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for (i = 1; i < 7; i = i + 1) begin
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if (report [i] == kbd_code_hid/*kbd_code*/) begin
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report [i] = 0;
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isr = 1;
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end
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else begin
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for (i = 1; i < 7; i = i + 1) begin
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//if (report [ ((i + 2) * 8 + 7) : ((i + 2) * 8 + 0)] == kbd_code_hid/*kbd_code*/) begin
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//report [ ((i + 2) * 8 + 7) : ((i + 2) * 8 + 0)] <= 0;
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if (report [i] == kbd_code_hid/*kbd_code*/) begin
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report [i] <= 0;
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//report_free_place[i] = 1;
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end
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end
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end
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end // END OF KBD CODE SEND ALG
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//if (kbd_code == 8'h2C) begin
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//if (is_pressed)
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// report [15:8] <= kbd_code;
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//else
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// report [15:8] <= 0;
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//end
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//else if (kbd_code == 1) begin
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// if (is_pressed)
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// report [23:16] <= kbd_code;
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// else
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// report [23:16] <= 0;
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//end
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end
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end // END OF KBD CODE SEND ALG
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else
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isr <= 0;
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/*if (kbd_code != 0) begin
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if (is_pressed)
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report [7:0] <= kbd_code;
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else
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isr <= 0;
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end
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report [7:0] <= 0;
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end*/
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end
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end
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end
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task check_column;
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/*else if (row_time == (ONE_ROW_TIME/2 + 6)) begin
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if (COLS_SHADOW[3] != last_data[row_counter*4 + 3]) begin
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case (row_counter) 0: kbd_code = 8'hE0; 1: kbd_code = 8'hE7; 2: kbd_code = 8'hE2; 3: kbd_code = 8'h2C; // LCTRL, LALT, SPACE, RGUI
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default: kbd_code = 1;
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endcase
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if ((COLS_SHADOW[3] == 0) && (last_data[row_counter*4 + 3] == 1)) is_pressed = 1;
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else is_pressed = 0;
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end
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else kbd_code = 0;
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last_data[row_counter*4 + 3] <= COLS_SHADOW[3];
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end*/
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task check_column; //(input [2:0] column);
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input [2:0] column;
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begin
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//if (COLS_SHADOW[column] != last_data[row_counter][column]/*[row_counter*8 + column]*/) begin
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if (COLS_SHADOW[column] != temp[column]) begin
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kbd_code = row_counter*8 + column;
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//if ((COLS_SHADOW[column] == 0) && (last_data[row_counter][column]/*[row_counter*8 + column]*/ == 1)) is_pressed = 1;
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if ((COLS_SHADOW[column] == 0) && (temp[column] == 1)) is_pressed = 1;
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else is_pressed = 0;
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end
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else kbd_code = 255;
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//last_data[row_counter][column]/*[row_counter*8 + column]*/ <= COLS_SHADOW[column];
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temp[column] = COLS_SHADOW[column];
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end
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endtask
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//assign kbd_report = report;
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assign kbd_r0 = report[0];
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assign kbd_r2 = report[1];
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assign kbd_r3 = report[2];
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@ -157,6 +257,7 @@ module matrix_kbd (input CLK, input RESET, input FREEZE, inout [15:0] ROWS, inpu
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assign kbd_r6 = report[5];
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assign kbd_r7 = report[6];
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|
assign INT = isr;
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|
//assign ROWS_EN = (1 << row_counter);
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SB_RAM40_4K #(
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.INIT_0(256'h0000_0001_0001_0001_00E7_0058_004C_0053__0001_0001_0001_0001_00E0_0039_00E1_0029), // ROW 0-1
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