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alternate Lunar Rescue Core

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This commit is contained in:
Marcel
2019-06-05 02:04:15 +02:00
parent f81a2f458a
commit a0b3c3b8dc
26 changed files with 113 additions and 331 deletions
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15
Computer_MiST/Laser310_MiST/rtl/LASER310_TOP.v
View File

@@ -44,8 +44,6 @@ output [7:0] audio_s,
input key_strobe,
input key_pressed,
input [7:0] key_code,
//input PS2_KBCLK,
//input PS2_KBDAT,
input [9:0] SWITCH,
input UART_RXD,
output UART_TXD
@@ -966,19 +964,6 @@ end
always @ (posedge CLK50MHZ) // 50MHz
KB_CLK <= KB_CLK + 1'b1; // 50/32 = 1.5625 MHz
/*
ps2_keyboard KEYBOARD(
.RESET_N(RESET_N),
.CLK(KB_CLK[4]),
.key_strobe (key_strobe ),
.key_pressed (key_pressed ),
.key_code (key_code ),
.PS2_CLK(PS2_KBCLK),
.PS2_DATA(PS2_KBDAT),
.RX_SCAN(SCAN),
.RX_PRESSED(PRESS),
.RX_EXTENDED(EXTENDED)
);*/
assign PRESS_N = ~key_pressed;

2
Computer_MiST/Laser310_MiST/rtl/Laser310_MiST.sv
View File

@@ -72,8 +72,6 @@ LASER310_TOP LASER310_TOP(
.VGA_VS(vs),
.AUD_ADCDAT(audio),
.audio_s(audio_s),
// .PS2_KBCLK(ps2_kbd_clk),
// .PS2_KBDAT(ps2_kbd_data),
.key_strobe (key_strobe ),
.key_pressed (key_pressed ),
.key_code (key_code ),

227
Computer_MiST/Laser310_MiST/rtl/ps2_keyboard_glb.v
View File

@@ -1,227 +0,0 @@
/*****************************************************************************
* gbfpgaapple APPLE ][e core.
*
*
* Ver 1.0
* July 2006
* Latest version from gbfpgaapple.tripod.com
*
******************************************************************************
*
* CPU section copyrighted by Daniel Wallner
*
******************************************************************************
*
* Apple ][e compatible system on a chip
*
* Version : 1.0
*
* Copyright (c) 2006 Gary Becker (gary_l_becker@yahoo.com)
*
* All rights reserved
*
* Redistribution and use in source and synthezised forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* Redistributions in synthesized form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* Neither the name of the author nor the names of other contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* Please report bugs to the author, but before you do so, please
* make sure that this is not a derivative work and that
* you have the latest version of this file.
*
* The latest version of this file can be found at:
* http://gbfpgaapple.tripod.com
*******************************************************************************/
`timescale 1 ns / 1 ns
module ps2_keyboard (
CLK,
RESET_N,
PS2_CLK,
PS2_DATA,
RX_PRESSED,
RX_EXTENDED,
RX_SCAN
);
input CLK;
input RESET_N;
input PS2_CLK;
input PS2_DATA;
output RX_PRESSED;
reg RX_PRESSED;
output RX_EXTENDED;
reg RX_EXTENDED;
output [7:0] RX_SCAN;
reg [7:0] RX_SCAN;
reg KB_CLK;
reg KB_DATA;
reg KB_CLK_B;
reg KB_DATA_B;
reg PRESSED_N;
reg EXTENDED;
reg [2:0] BIT;
reg [7:0] STATE;
reg [7:0] SCAN;
wire PARITY;
reg [10:0] TIMER;
reg KILLER;
wire RESET_X;
// Double buffer
always @ (posedge CLK)
begin
KB_CLK_B <= PS2_CLK;
KB_DATA_B <= PS2_DATA;
KB_CLK <= KB_CLK_B;
KB_DATA <= KB_DATA_B;
end
assign PARITY = ~(((SCAN[0]^SCAN[1])
^(SCAN[2]^SCAN[3]))
^((SCAN[4]^SCAN[5])
^(SCAN[6]^SCAN[7])));
assign RESET_X = RESET_N & KILLER;
always @ (negedge CLK or negedge RESET_N)
if(!RESET_N)
begin
KILLER <= 1'b1;
TIMER <= 11'h000;
end
else
case(TIMER)
11'h000:
begin
KILLER <= 1'b1;
if(STATE != 8'h00)
TIMER <= 11'h001;
end
11'h7FD:
begin
KILLER <= 1'b0;
TIMER <= 11'h7FE;
end
default:
if(STATE == 8'h00)
TIMER <= 11'h000;
else
TIMER <= TIMER + 1'b1;
endcase
always @ (posedge CLK or negedge RESET_X)
begin
if(!RESET_X)
begin
STATE <= 8'h00;
SCAN <= 8'h00;
BIT <= 3'b000;
RX_SCAN <= 8'h00;
RX_PRESSED <= 1'b0;
PRESSED_N <= 1'b0;
EXTENDED <= 1'b0;
end
else
begin
case (STATE)
8'h00: // Hunt for start bit
begin
SCAN <= 8'h00;
BIT <= 3'b000;
RX_SCAN <= 8'h00;
RX_PRESSED <= 1'b0;
if(~KB_DATA & ~KB_CLK)
STATE <= 8'h01;
end
8'h01: // Started
begin
if(KB_CLK)
STATE <= 8'h02;
end
8'h02: // Hunt for Bit
begin
if(~KB_CLK)
STATE <= 8'h03;
end
8'h03:
begin
if(KB_CLK)
begin
SCAN[BIT] <= KB_DATA;
BIT <= BIT + 1'b1;
if(BIT == 3'b111)
STATE <= 8'h04;
else
STATE <= 8'h02;
end
end
8'h04: // Hunt for Bit
begin
if(~KB_CLK)
STATE <= 8'h05;
end
8'h05: // Test parity
begin
if(KB_CLK)
begin
if(KB_DATA == PARITY)
STATE <= 8'h06;
else
begin
STATE <= 8'h00;
end
end
end
8'h06:
begin
if(SCAN == 8'hE0)
begin
EXTENDED <= 1'b1;
STATE <= 8'h00;
end
else
if(SCAN == 8'hF0)
begin
PRESSED_N <= 1'b1;
STATE <= 8'h00;
end
else
begin
RX_SCAN <= SCAN;
RX_PRESSED <= ~PRESSED_N;
RX_EXTENDED <= EXTENDED;
PRESSED_N <= 1'b0;
EXTENDED <= 1'b0;
STATE <= 8'h07;
end
end
8'h07:
STATE <= 8'h00;
endcase
end
end
endmodule