| 1 |
11 |
mohor |
//////////////////////////////////////////////////////////////////////
|
| 2 |
|
|
//// ////
|
| 3 |
|
|
//// can_acf.v ////
|
| 4 |
|
|
//// ////
|
| 5 |
|
|
//// ////
|
| 6 |
|
|
//// This file is part of the CAN Protocol Controller ////
|
| 7 |
|
|
//// http://www.opencores.org/projects/can/ ////
|
| 8 |
|
|
//// ////
|
| 9 |
|
|
//// ////
|
| 10 |
|
|
//// Author(s): ////
|
| 11 |
|
|
//// Igor Mohor ////
|
| 12 |
|
|
//// igorm@opencores.org ////
|
| 13 |
|
|
//// ////
|
| 14 |
|
|
//// ////
|
| 15 |
|
|
//// All additional information is available in the README.txt ////
|
| 16 |
|
|
//// file. ////
|
| 17 |
|
|
//// ////
|
| 18 |
|
|
//////////////////////////////////////////////////////////////////////
|
| 19 |
|
|
//// ////
|
| 20 |
|
|
//// Copyright (C) 2002, 2003 Authors ////
|
| 21 |
|
|
//// ////
|
| 22 |
|
|
//// This source file may be used and distributed without ////
|
| 23 |
|
|
//// restriction provided that this copyright statement is not ////
|
| 24 |
|
|
//// removed from the file and that any derivative work contains ////
|
| 25 |
|
|
//// the original copyright notice and the associated disclaimer. ////
|
| 26 |
|
|
//// ////
|
| 27 |
|
|
//// This source file is free software; you can redistribute it ////
|
| 28 |
|
|
//// and/or modify it under the terms of the GNU Lesser General ////
|
| 29 |
|
|
//// Public License as published by the Free Software Foundation; ////
|
| 30 |
|
|
//// either version 2.1 of the License, or (at your option) any ////
|
| 31 |
|
|
//// later version. ////
|
| 32 |
|
|
//// ////
|
| 33 |
|
|
//// This source is distributed in the hope that it will be ////
|
| 34 |
|
|
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
|
| 35 |
|
|
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
|
| 36 |
|
|
//// PURPOSE. See the GNU Lesser General Public License for more ////
|
| 37 |
|
|
//// details. ////
|
| 38 |
|
|
//// ////
|
| 39 |
|
|
//// You should have received a copy of the GNU Lesser General ////
|
| 40 |
|
|
//// Public License along with this source; if not, download it ////
|
| 41 |
|
|
//// from http://www.opencores.org/lgpl.shtml ////
|
| 42 |
|
|
//// ////
|
| 43 |
28 |
mohor |
//// The CAN protocol is developed by Robert Bosch GmbH and ////
|
| 44 |
|
|
//// protected by patents. Anybody who wants to implement this ////
|
| 45 |
|
|
//// CAN IP core on silicon has to obtain a CAN protocol license ////
|
| 46 |
|
|
//// from Bosch. ////
|
| 47 |
|
|
//// ////
|
| 48 |
11 |
mohor |
//////////////////////////////////////////////////////////////////////
|
| 49 |
|
|
//
|
| 50 |
|
|
// CVS Revision History
|
| 51 |
|
|
//
|
| 52 |
|
|
// $Log: not supported by cvs2svn $
|
| 53 |
28 |
mohor |
// Revision 1.3 2003/01/31 01:13:37 mohor
|
| 54 |
|
|
// backup.
|
| 55 |
|
|
//
|
| 56 |
24 |
mohor |
// Revision 1.2 2003/01/14 12:19:35 mohor
|
| 57 |
|
|
// rx_fifo is now working.
|
| 58 |
|
|
//
|
| 59 |
16 |
mohor |
// Revision 1.1 2003/01/08 02:13:15 mohor
|
| 60 |
|
|
// Acceptance filter added.
|
| 61 |
11 |
mohor |
//
|
| 62 |
|
|
//
|
| 63 |
|
|
//
|
| 64 |
16 |
mohor |
//
|
| 65 |
11 |
mohor |
|
| 66 |
|
|
// synopsys translate_off
|
| 67 |
|
|
`include "timescale.v"
|
| 68 |
|
|
// synopsys translate_on
|
| 69 |
|
|
`include "can_defines.v"
|
| 70 |
|
|
|
| 71 |
|
|
module can_acf
|
| 72 |
|
|
(
|
| 73 |
|
|
clk,
|
| 74 |
|
|
rst,
|
| 75 |
|
|
|
| 76 |
|
|
id,
|
| 77 |
|
|
|
| 78 |
|
|
/* Mode register */
|
| 79 |
|
|
reset_mode,
|
| 80 |
|
|
acceptance_filter_mode,
|
| 81 |
|
|
|
| 82 |
|
|
extended_mode,
|
| 83 |
|
|
|
| 84 |
|
|
acceptance_code_0,
|
| 85 |
|
|
acceptance_code_1,
|
| 86 |
|
|
acceptance_code_2,
|
| 87 |
|
|
acceptance_code_3,
|
| 88 |
|
|
acceptance_mask_0,
|
| 89 |
|
|
acceptance_mask_1,
|
| 90 |
|
|
acceptance_mask_2,
|
| 91 |
|
|
acceptance_mask_3,
|
| 92 |
|
|
|
| 93 |
|
|
go_rx_crc_lim,
|
| 94 |
|
|
go_rx_idle,
|
| 95 |
|
|
|
| 96 |
|
|
data0,
|
| 97 |
|
|
data1,
|
| 98 |
|
|
rtr1,
|
| 99 |
|
|
rtr2,
|
| 100 |
|
|
ide,
|
| 101 |
16 |
mohor |
no_byte0,
|
| 102 |
|
|
no_byte1,
|
| 103 |
11 |
mohor |
|
| 104 |
|
|
|
| 105 |
|
|
id_ok
|
| 106 |
|
|
|
| 107 |
|
|
|
| 108 |
|
|
);
|
| 109 |
|
|
|
| 110 |
|
|
parameter Tp = 1;
|
| 111 |
|
|
|
| 112 |
|
|
input clk;
|
| 113 |
|
|
input rst;
|
| 114 |
|
|
input [28:0] id;
|
| 115 |
|
|
input reset_mode;
|
| 116 |
|
|
input acceptance_filter_mode;
|
| 117 |
|
|
input extended_mode;
|
| 118 |
|
|
|
| 119 |
|
|
input [7:0] acceptance_code_0;
|
| 120 |
|
|
input [7:0] acceptance_code_1;
|
| 121 |
|
|
input [7:0] acceptance_code_2;
|
| 122 |
|
|
input [7:0] acceptance_code_3;
|
| 123 |
|
|
input [7:0] acceptance_mask_0;
|
| 124 |
|
|
input [7:0] acceptance_mask_1;
|
| 125 |
|
|
input [7:0] acceptance_mask_2;
|
| 126 |
|
|
input [7:0] acceptance_mask_3;
|
| 127 |
|
|
input go_rx_crc_lim;
|
| 128 |
|
|
input go_rx_idle;
|
| 129 |
|
|
input [7:0] data0;
|
| 130 |
|
|
input [7:0] data1;
|
| 131 |
|
|
input rtr1;
|
| 132 |
|
|
input rtr2;
|
| 133 |
|
|
input ide;
|
| 134 |
16 |
mohor |
input no_byte0;
|
| 135 |
|
|
input no_byte1;
|
| 136 |
11 |
mohor |
|
| 137 |
|
|
|
| 138 |
|
|
output id_ok;
|
| 139 |
|
|
|
| 140 |
|
|
reg id_ok;
|
| 141 |
|
|
|
| 142 |
|
|
wire match;
|
| 143 |
|
|
wire match_sf_std;
|
| 144 |
|
|
wire match_sf_ext;
|
| 145 |
|
|
wire match_df_std;
|
| 146 |
|
|
wire match_df_ext;
|
| 147 |
|
|
|
| 148 |
|
|
|
| 149 |
|
|
// Working in basic mode. ID match for standard format (11-bit ID).
|
| 150 |
|
|
assign match = ( (id[3] == acceptance_code_0[0] | acceptance_mask_0[0] ) &
|
| 151 |
|
|
(id[4] == acceptance_code_0[1] | acceptance_mask_0[1] ) &
|
| 152 |
|
|
(id[5] == acceptance_code_0[2] | acceptance_mask_0[2] ) &
|
| 153 |
|
|
(id[6] == acceptance_code_0[3] | acceptance_mask_0[3] ) &
|
| 154 |
|
|
(id[7] == acceptance_code_0[4] | acceptance_mask_0[4] ) &
|
| 155 |
|
|
(id[8] == acceptance_code_0[5] | acceptance_mask_0[5] ) &
|
| 156 |
|
|
(id[9] == acceptance_code_0[6] | acceptance_mask_0[6] ) &
|
| 157 |
|
|
(id[10] == acceptance_code_0[7] | acceptance_mask_0[7] )
|
| 158 |
|
|
);
|
| 159 |
|
|
|
| 160 |
|
|
|
| 161 |
|
|
// Working in extended mode. ID match for standard format (11-bit ID). Using single filter.
|
| 162 |
|
|
assign match_sf_std = ( (id[3] == acceptance_code_0[0] | acceptance_mask_0[0] ) &
|
| 163 |
|
|
(id[4] == acceptance_code_0[1] | acceptance_mask_0[1] ) &
|
| 164 |
|
|
(id[5] == acceptance_code_0[2] | acceptance_mask_0[2] ) &
|
| 165 |
|
|
(id[6] == acceptance_code_0[3] | acceptance_mask_0[3] ) &
|
| 166 |
|
|
(id[7] == acceptance_code_0[4] | acceptance_mask_0[4] ) &
|
| 167 |
|
|
(id[8] == acceptance_code_0[5] | acceptance_mask_0[5] ) &
|
| 168 |
|
|
(id[9] == acceptance_code_0[6] | acceptance_mask_0[6] ) &
|
| 169 |
|
|
(id[10] == acceptance_code_0[7] | acceptance_mask_0[7] ) &
|
| 170 |
|
|
|
| 171 |
|
|
(rtr1 == acceptance_code_1[4] | acceptance_mask_1[4] ) &
|
| 172 |
|
|
(id[0] == acceptance_code_1[5] | acceptance_mask_1[5] ) &
|
| 173 |
|
|
(id[1] == acceptance_code_1[6] | acceptance_mask_1[6] ) &
|
| 174 |
|
|
(id[2] == acceptance_code_1[7] | acceptance_mask_1[7] ) &
|
| 175 |
|
|
|
| 176 |
16 |
mohor |
(data0[0] == acceptance_code_2[0] | acceptance_mask_2[0] | no_byte0) &
|
| 177 |
|
|
(data0[1] == acceptance_code_2[1] | acceptance_mask_2[1] | no_byte0) &
|
| 178 |
|
|
(data0[2] == acceptance_code_2[2] | acceptance_mask_2[2] | no_byte0) &
|
| 179 |
|
|
(data0[3] == acceptance_code_2[3] | acceptance_mask_2[3] | no_byte0) &
|
| 180 |
|
|
(data0[4] == acceptance_code_2[4] | acceptance_mask_2[4] | no_byte0) &
|
| 181 |
|
|
(data0[5] == acceptance_code_2[5] | acceptance_mask_2[5] | no_byte0) &
|
| 182 |
|
|
(data0[6] == acceptance_code_2[6] | acceptance_mask_2[6] | no_byte0) &
|
| 183 |
|
|
(data0[7] == acceptance_code_2[7] | acceptance_mask_2[7] | no_byte0) &
|
| 184 |
11 |
mohor |
|
| 185 |
16 |
mohor |
(data1[0] == acceptance_code_3[0] | acceptance_mask_3[0] | no_byte1) &
|
| 186 |
|
|
(data1[1] == acceptance_code_3[1] | acceptance_mask_3[1] | no_byte1) &
|
| 187 |
|
|
(data1[2] == acceptance_code_3[2] | acceptance_mask_3[2] | no_byte1) &
|
| 188 |
|
|
(data1[3] == acceptance_code_3[3] | acceptance_mask_3[3] | no_byte1) &
|
| 189 |
|
|
(data1[4] == acceptance_code_3[4] | acceptance_mask_3[4] | no_byte1) &
|
| 190 |
|
|
(data1[5] == acceptance_code_3[5] | acceptance_mask_3[5] | no_byte1) &
|
| 191 |
|
|
(data1[6] == acceptance_code_3[6] | acceptance_mask_3[6] | no_byte1) &
|
| 192 |
|
|
(data1[7] == acceptance_code_3[7] | acceptance_mask_3[7] | no_byte1)
|
| 193 |
11 |
mohor |
);
|
| 194 |
|
|
|
| 195 |
|
|
|
| 196 |
16 |
mohor |
|
| 197 |
11 |
mohor |
// Working in extended mode. ID match for extended format (29-bit ID). Using single filter.
|
| 198 |
|
|
assign match_sf_ext = ( (id[21] == acceptance_code_0[0] | acceptance_mask_0[0] ) &
|
| 199 |
|
|
(id[22] == acceptance_code_0[1] | acceptance_mask_0[1] ) &
|
| 200 |
|
|
(id[23] == acceptance_code_0[2] | acceptance_mask_0[2] ) &
|
| 201 |
|
|
(id[24] == acceptance_code_0[3] | acceptance_mask_0[3] ) &
|
| 202 |
|
|
(id[25] == acceptance_code_0[4] | acceptance_mask_0[4] ) &
|
| 203 |
|
|
(id[26] == acceptance_code_0[5] | acceptance_mask_0[5] ) &
|
| 204 |
|
|
(id[27] == acceptance_code_0[6] | acceptance_mask_0[6] ) &
|
| 205 |
|
|
(id[28] == acceptance_code_0[7] | acceptance_mask_0[7] ) &
|
| 206 |
|
|
|
| 207 |
|
|
(id[13] == acceptance_code_1[0] | acceptance_mask_1[0] ) &
|
| 208 |
|
|
(id[14] == acceptance_code_1[1] | acceptance_mask_1[1] ) &
|
| 209 |
|
|
(id[15] == acceptance_code_1[2] | acceptance_mask_1[2] ) &
|
| 210 |
|
|
(id[16] == acceptance_code_1[3] | acceptance_mask_1[3] ) &
|
| 211 |
|
|
(id[17] == acceptance_code_1[4] | acceptance_mask_1[4] ) &
|
| 212 |
|
|
(id[18] == acceptance_code_1[5] | acceptance_mask_1[5] ) &
|
| 213 |
|
|
(id[19] == acceptance_code_1[6] | acceptance_mask_1[6] ) &
|
| 214 |
|
|
(id[20] == acceptance_code_1[7] | acceptance_mask_1[7] ) &
|
| 215 |
|
|
|
| 216 |
|
|
(id[5] == acceptance_code_2[0] | acceptance_mask_2[0] ) &
|
| 217 |
|
|
(id[6] == acceptance_code_2[1] | acceptance_mask_2[1] ) &
|
| 218 |
|
|
(id[7] == acceptance_code_2[2] | acceptance_mask_2[2] ) &
|
| 219 |
|
|
(id[8] == acceptance_code_2[3] | acceptance_mask_2[3] ) &
|
| 220 |
|
|
(id[9] == acceptance_code_2[4] | acceptance_mask_2[4] ) &
|
| 221 |
|
|
(id[10] == acceptance_code_2[5] | acceptance_mask_2[5] ) &
|
| 222 |
|
|
(id[11] == acceptance_code_2[6] | acceptance_mask_2[6] ) &
|
| 223 |
|
|
(id[12] == acceptance_code_2[7] | acceptance_mask_2[7] ) &
|
| 224 |
|
|
|
| 225 |
|
|
(rtr2 == acceptance_code_3[2] | acceptance_mask_3[2] ) &
|
| 226 |
|
|
(id[0] == acceptance_code_3[3] | acceptance_mask_3[3] ) &
|
| 227 |
|
|
(id[1] == acceptance_code_3[4] | acceptance_mask_3[4] ) &
|
| 228 |
|
|
(id[2] == acceptance_code_3[5] | acceptance_mask_3[5] ) &
|
| 229 |
|
|
(id[3] == acceptance_code_3[6] | acceptance_mask_3[6] ) &
|
| 230 |
|
|
(id[4] == acceptance_code_3[7] | acceptance_mask_3[7] )
|
| 231 |
|
|
|
| 232 |
|
|
);
|
| 233 |
|
|
|
| 234 |
|
|
|
| 235 |
|
|
// Working in extended mode. ID match for standard format (11-bit ID). Using double filter.
|
| 236 |
|
|
assign match_df_std = (((id[3] == acceptance_code_0[0] | acceptance_mask_0[0] ) &
|
| 237 |
|
|
(id[4] == acceptance_code_0[1] | acceptance_mask_0[1] ) &
|
| 238 |
|
|
(id[5] == acceptance_code_0[2] | acceptance_mask_0[2] ) &
|
| 239 |
|
|
(id[6] == acceptance_code_0[3] | acceptance_mask_0[3] ) &
|
| 240 |
|
|
(id[7] == acceptance_code_0[4] | acceptance_mask_0[4] ) &
|
| 241 |
|
|
(id[8] == acceptance_code_0[5] | acceptance_mask_0[5] ) &
|
| 242 |
|
|
(id[9] == acceptance_code_0[6] | acceptance_mask_0[6] ) &
|
| 243 |
|
|
(id[10] == acceptance_code_0[7] | acceptance_mask_0[7] ) &
|
| 244 |
|
|
|
| 245 |
|
|
(rtr1 == acceptance_code_1[4] | acceptance_mask_1[4] ) &
|
| 246 |
|
|
(id[0] == acceptance_code_1[5] | acceptance_mask_1[5] ) &
|
| 247 |
|
|
(id[1] == acceptance_code_1[6] | acceptance_mask_1[6] ) &
|
| 248 |
|
|
(id[2] == acceptance_code_1[7] | acceptance_mask_1[7] ) &
|
| 249 |
|
|
|
| 250 |
16 |
mohor |
(data0[0] == acceptance_code_3[0] | acceptance_mask_3[0] | no_byte0) &
|
| 251 |
|
|
(data0[1] == acceptance_code_3[1] | acceptance_mask_3[1] | no_byte0) &
|
| 252 |
|
|
(data0[2] == acceptance_code_3[2] | acceptance_mask_3[2] | no_byte0) &
|
| 253 |
|
|
(data0[3] == acceptance_code_3[3] | acceptance_mask_3[3] | no_byte0) &
|
| 254 |
|
|
(data0[4] == acceptance_code_1[4] | acceptance_mask_1[4] | no_byte0) &
|
| 255 |
|
|
(data0[5] == acceptance_code_1[5] | acceptance_mask_1[5] | no_byte0) &
|
| 256 |
|
|
(data0[6] == acceptance_code_1[6] | acceptance_mask_1[6] | no_byte0) &
|
| 257 |
|
|
(data0[7] == acceptance_code_1[7] | acceptance_mask_1[7] | no_byte0) )
|
| 258 |
11 |
mohor |
|
| 259 |
|
|
|
|
| 260 |
|
|
|
| 261 |
|
|
((id[3] == acceptance_code_2[0] | acceptance_mask_2[0] ) &
|
| 262 |
|
|
(id[4] == acceptance_code_2[1] | acceptance_mask_2[1] ) &
|
| 263 |
|
|
(id[5] == acceptance_code_2[2] | acceptance_mask_2[2] ) &
|
| 264 |
|
|
(id[6] == acceptance_code_2[3] | acceptance_mask_2[3] ) &
|
| 265 |
|
|
(id[7] == acceptance_code_2[4] | acceptance_mask_2[4] ) &
|
| 266 |
|
|
(id[8] == acceptance_code_2[5] | acceptance_mask_2[5] ) &
|
| 267 |
|
|
(id[9] == acceptance_code_2[6] | acceptance_mask_2[6] ) &
|
| 268 |
|
|
(id[10] == acceptance_code_2[7] | acceptance_mask_2[7] ) &
|
| 269 |
|
|
|
| 270 |
|
|
(rtr1 == acceptance_code_3[4] | acceptance_mask_3[4] ) &
|
| 271 |
|
|
(id[0] == acceptance_code_3[5] | acceptance_mask_3[5] ) &
|
| 272 |
|
|
(id[1] == acceptance_code_3[6] | acceptance_mask_3[6] ) &
|
| 273 |
|
|
(id[2] == acceptance_code_3[7] | acceptance_mask_3[7] ) )
|
| 274 |
|
|
|
| 275 |
|
|
);
|
| 276 |
|
|
|
| 277 |
|
|
|
| 278 |
|
|
// Working in extended mode. ID match for extended format (29-bit ID). Using double filter.
|
| 279 |
|
|
assign match_df_ext = (((id[21] == acceptance_code_0[0] | acceptance_mask_0[0] ) &
|
| 280 |
|
|
(id[22] == acceptance_code_0[1] | acceptance_mask_0[1] ) &
|
| 281 |
|
|
(id[23] == acceptance_code_0[2] | acceptance_mask_0[2] ) &
|
| 282 |
|
|
(id[24] == acceptance_code_0[3] | acceptance_mask_0[3] ) &
|
| 283 |
|
|
(id[25] == acceptance_code_0[4] | acceptance_mask_0[4] ) &
|
| 284 |
|
|
(id[26] == acceptance_code_0[5] | acceptance_mask_0[5] ) &
|
| 285 |
|
|
(id[27] == acceptance_code_0[6] | acceptance_mask_0[6] ) &
|
| 286 |
|
|
(id[28] == acceptance_code_0[7] | acceptance_mask_0[7] ) &
|
| 287 |
|
|
|
| 288 |
|
|
(id[13] == acceptance_code_1[0] | acceptance_mask_1[0] ) &
|
| 289 |
|
|
(id[14] == acceptance_code_1[1] | acceptance_mask_1[1] ) &
|
| 290 |
|
|
(id[15] == acceptance_code_1[2] | acceptance_mask_1[2] ) &
|
| 291 |
|
|
(id[16] == acceptance_code_1[3] | acceptance_mask_1[3] ) &
|
| 292 |
|
|
(id[17] == acceptance_code_1[4] | acceptance_mask_1[4] ) &
|
| 293 |
|
|
(id[18] == acceptance_code_1[5] | acceptance_mask_1[5] ) &
|
| 294 |
|
|
(id[19] == acceptance_code_1[6] | acceptance_mask_1[6] ) &
|
| 295 |
|
|
(id[20] == acceptance_code_1[7] | acceptance_mask_1[7] ) )
|
| 296 |
|
|
|
| 297 |
|
|
|
|
| 298 |
|
|
|
| 299 |
|
|
((id[21] == acceptance_code_2[0] | acceptance_mask_2[0] ) &
|
| 300 |
|
|
(id[22] == acceptance_code_2[1] | acceptance_mask_2[1] ) &
|
| 301 |
|
|
(id[23] == acceptance_code_2[2] | acceptance_mask_2[2] ) &
|
| 302 |
|
|
(id[24] == acceptance_code_2[3] | acceptance_mask_2[3] ) &
|
| 303 |
|
|
(id[25] == acceptance_code_2[4] | acceptance_mask_2[4] ) &
|
| 304 |
|
|
(id[26] == acceptance_code_2[5] | acceptance_mask_2[5] ) &
|
| 305 |
|
|
(id[27] == acceptance_code_2[6] | acceptance_mask_2[6] ) &
|
| 306 |
|
|
(id[28] == acceptance_code_2[7] | acceptance_mask_2[7] ) &
|
| 307 |
|
|
|
| 308 |
|
|
(id[13] == acceptance_code_3[0] | acceptance_mask_3[0] ) &
|
| 309 |
|
|
(id[14] == acceptance_code_3[1] | acceptance_mask_3[1] ) &
|
| 310 |
|
|
(id[15] == acceptance_code_3[2] | acceptance_mask_3[2] ) &
|
| 311 |
|
|
(id[16] == acceptance_code_3[3] | acceptance_mask_3[3] ) &
|
| 312 |
|
|
(id[17] == acceptance_code_3[4] | acceptance_mask_3[4] ) &
|
| 313 |
|
|
(id[18] == acceptance_code_3[5] | acceptance_mask_3[5] ) &
|
| 314 |
|
|
(id[19] == acceptance_code_3[6] | acceptance_mask_3[6] ) &
|
| 315 |
|
|
(id[20] == acceptance_code_3[7] | acceptance_mask_3[7] ) )
|
| 316 |
|
|
);
|
| 317 |
|
|
|
| 318 |
|
|
|
| 319 |
|
|
|
| 320 |
|
|
// ID ok signal generation
|
| 321 |
|
|
always @ (posedge clk or posedge rst)
|
| 322 |
|
|
begin
|
| 323 |
|
|
if (rst)
|
| 324 |
|
|
id_ok <= 0;
|
| 325 |
24 |
mohor |
else if (go_rx_crc_lim) // sample_point is already included in go_rx_crc_lim
|
| 326 |
11 |
mohor |
begin
|
| 327 |
|
|
if (extended_mode)
|
| 328 |
|
|
begin
|
| 329 |
|
|
if (acceptance_filter_mode) // dual filter
|
| 330 |
|
|
begin
|
| 331 |
|
|
if (ide) // extended frame message
|
| 332 |
|
|
id_ok <=#Tp match_df_ext;
|
| 333 |
|
|
else // standard frame message
|
| 334 |
|
|
id_ok <=#Tp match_df_std;
|
| 335 |
|
|
end
|
| 336 |
|
|
else // single filter
|
| 337 |
|
|
begin
|
| 338 |
|
|
if (ide) // extended frame message
|
| 339 |
|
|
id_ok <=#Tp match_sf_ext;
|
| 340 |
|
|
else // standard frame message
|
| 341 |
|
|
id_ok <=#Tp match_sf_std;
|
| 342 |
|
|
end
|
| 343 |
|
|
end
|
| 344 |
|
|
else
|
| 345 |
|
|
id_ok <=#Tp match;
|
| 346 |
|
|
end
|
| 347 |
|
|
else if (reset_mode | go_rx_idle) // sample_point is already included in go_rx_idle
|
| 348 |
|
|
id_ok <=#Tp 0;
|
| 349 |
|
|
end
|
| 350 |
|
|
|
| 351 |
|
|
|
| 352 |
|
|
|
| 353 |
|
|
|
| 354 |
|
|
|
| 355 |
|
|
|
| 356 |
|
|
|
| 357 |
|
|
|
| 358 |
|
|
|
| 359 |
|
|
endmodule
|
