Details | Last modification | View Log | SVN | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 53 | johboh | 1 | /********************************************************************* |
| 2 | * |
||
| 3 | * Main application |
||
| 4 | * |
||
| 5 | ********************************************************************* |
||
| 6 | * FileName: Main.c |
||
| 7 | * |
||
| 8 | * Author Date Comment |
||
| 9 | *~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
||
| 10 | * Johan Böhlin 21-10-06 Original (Rev 1.0) |
||
| 11 | ********************************************************************/ |
||
| 79 | johboh | 12 | // $IDI$ |
| 53 | johboh | 13 | |
| 14 | #include <compiler.h> |
||
| 15 | #include <stackTasks.h> |
||
| 64 | johboh | 16 | #include <CANdefs.h> |
| 17 | #include <CAN.h> |
||
| 67 | johboh | 18 | #include <boot.h> |
| 53 | johboh | 19 | |
| 67 | johboh | 20 | /** V E C T O R R E M A P P I N G *******************************************/ |
| 21 | |||
| 22 | #pragma code _HIGH_INTERRUPT_VECTOR = 0x000008 |
||
| 23 | void _high_ISR (void) |
||
| 24 | { |
||
| 25 | _asm goto RM_HIGH_INTERRUPT_VECTOR _endasm |
||
| 26 | } |
||
| 27 | |||
| 28 | #pragma code _LOW_INTERRUPT_VECTOR = 0x000018 |
||
| 29 | void _low_ISR (void) |
||
| 30 | { |
||
| 31 | _asm goto RM_LOW_INTERRUPT_VECTOR _endasm |
||
| 32 | } |
||
| 33 | |||
| 34 | #pragma code |
||
| 35 | |||
| 36 | |||
| 53 | johboh | 37 | #ifdef USE_CAN |
| 38 | #include <CAN.h> |
||
| 39 | #endif |
||
| 40 | |||
| 64 | johboh | 41 | static CAN_PROTO_MESSAGE cm; |
| 42 | static BYTE ful=0; |
||
| 43 | static DWORD cnt =0; |
||
| 44 | |||
| 53 | johboh | 45 | static void mainInit(void); |
| 64 | johboh | 46 | static BOOL canGetPacket(void); |
| 67 | johboh | 47 | void TBLWT_Func(void); |
| 48 | void TBLWTPOSTINC_Func (void); |
||
| 49 | void TBLRD_Func(void); |
||
| 53 | johboh | 50 | |
| 67 | johboh | 51 | #define TICK_SUB_COUNTER_10MS 312 |
| 52 | #define PACKET_TIMEOUT 14 |
||
| 53 | #define BOOTLOADER_INIT_TIMOUT 500 |
||
| 64 | johboh | 54 | |
| 67 | johboh | 55 | DWORD tickCounter = 0; |
| 56 | DWORD tickSubCounter = 0; |
||
| 57 | |||
| 58 | DWORD tickGet(void); |
||
| 59 | |||
| 53 | johboh | 60 | void main() |
| 61 | { |
||
| 64 | johboh | 62 | static PROGRAM_STATE pgs = pgsWATING_START; |
| 67 | johboh | 63 | static DWORD t = 0; |
| 64 | johboh | 64 | static WORD programmerSid=0; |
| 65 | |||
| 66 | static BYTE errMsg = ERR_NO_ERROR; |
||
| 67 | static PROGRAM_STATE afterAckPgs = pgsWATING_START; |
||
| 68 | static DWORD pgmAddress = 0; |
||
| 69 | static BYTE bytesReceived = 0; |
||
| 53 | johboh | 70 | |
| 67 | johboh | 71 | DWORD tBoot; |
| 72 | |||
| 73 | static BYTE pgmData[64]; |
||
| 74 | |||
| 64 | johboh | 75 | static BYTE tmp; |
| 76 | |||
| 53 | johboh | 77 | // Inits |
| 78 | mainInit(); |
||
| 79 | |||
| 80 | #ifdef USE_CAN |
||
| 81 | canInit(); |
||
| 82 | #endif |
||
| 83 | |||
| 67 | johboh | 84 | tBoot = tickGet(); |
| 64 | johboh | 85 | |
| 86 | |||
| 87 | for(;;) |
||
| 53 | johboh | 88 | { |
| 67 | johboh | 89 | BYTE i; |
| 64 | johboh | 90 | CAN_PROTO_MESSAGE outCm; |
| 91 | BOOL hasPacket = canGetPacket(); |
||
| 92 | |||
| 67 | johboh | 93 | tickSubCounter++; |
| 94 | if (tickSubCounter>TICK_SUB_COUNTER_10MS) |
||
| 64 | johboh | 95 | { |
| 67 | johboh | 96 | tickCounter++; |
| 97 | tickSubCounter=0; |
||
| 64 | johboh | 98 | } |
| 99 | |||
| 100 | switch(pgs) |
||
| 101 | { |
||
| 102 | case pgsWATING_START: |
||
| 103 | // Check if there is bootloader start packet |
||
| 79 | johboh | 104 | if (hasPacket==TRUE && cm.funct==FUNCT_BOOTLOADER && cm.funcc==FUNCC_BOOT_INIT && ((((unsigned int)cm.data[RID_HIGH_INDEX])<<8)+cm.data[RID_LOW_INDEX])==MY_ID && cm.nid==MY_NID) |
| 64 | johboh | 105 | { |
| 106 | // Has new start packet |
||
| 107 | pgmAddress = (((DWORD)cm.data[ADDRU_INDEX])<<16)+(((DWORD)cm.data[ADDRH_INDEX])<<8)+((DWORD)cm.data[ADDRL_INDEX]); |
||
| 108 | programmerSid = cm.sid; |
||
| 109 | t = tickGet(); |
||
| 110 | errMsg = ERR_NO_ERROR; |
||
| 111 | afterAckPgs = pgsWAIT_FIRST_PGM_PACKET; |
||
| 112 | pgs = pgsSEND_ACK; |
||
| 67 | johboh | 113 | // save pgm adress. |
| 114 | |||
| 64 | johboh | 115 | } |
| 116 | |||
| 67 | johboh | 117 | // Bootloader timeout |
| 118 | if ((tickGet()-tBoot)>BOOTLOADER_INIT_TIMOUT) |
||
| 119 | { |
||
| 120 | pgs = pgsDONE; |
||
| 121 | } |
||
| 64 | johboh | 122 | break; |
| 123 | |||
| 124 | case pgsSEND_ACK: |
||
| 125 | // send ack |
||
| 126 | outCm.funct = FUNCT_BOOTLOADER; |
||
| 127 | outCm.funcc = FUNCC_BOOT_ACK; |
||
| 128 | outCm.nid = MY_NID; |
||
| 129 | outCm.sid = MY_ID; |
||
| 130 | outCm.data_length = 8; |
||
| 131 | outCm.remote_request = FALSE; |
||
| 132 | outCm.data[ERR_INDEX] = errMsg; |
||
| 133 | t = tickGet(); |
||
| 134 | pgs = afterAckPgs; |
||
| 135 | |||
| 136 | while(!canSendMessage(outCm,PRIO_HIGH)); |
||
| 137 | break; |
||
| 138 | |||
| 139 | |||
| 140 | case pgsWAIT_FIRST_PGM_PACKET: |
||
| 141 | // wait for first pgm packet. |
||
| 142 | if ((tickGet()-t)>PACKET_TIMEOUT) |
||
| 143 | { |
||
| 144 | // Timeout, resend ack. |
||
| 145 | errMsg = ERR_NO_ERROR; |
||
| 146 | afterAckPgs = pgsWAIT_FIRST_PGM_PACKET; |
||
| 147 | pgs = pgsSEND_ACK; |
||
| 148 | } |
||
| 149 | |||
| 150 | // If programming packet... |
||
| 67 | johboh | 151 | if (hasPacket==TRUE && cm.funct==FUNCT_BOOTLOADER && (cm.funcc & 0x3)==FUNCC_BOOT_PGM && cm.nid==MY_NID && cm.sid==programmerSid) |
| 64 | johboh | 152 | { |
| 67 | johboh | 153 | BYTE localIndex = (BYTE)((cm.funcc & 0x1C)>>2)*8; |
| 154 | |||
| 64 | johboh | 155 | // Save bytes in memory, setup start adress etc.. |
| 67 | johboh | 156 | bytesReceived = 8; |
| 157 | pgmData[localIndex+0]=cm.data[0]; pgmData[localIndex+1]=cm.data[1]; pgmData[localIndex+2]=cm.data[2]; pgmData[localIndex+3]=cm.data[3]; |
||
| 158 | pgmData[localIndex+4]=cm.data[4]; pgmData[localIndex+5]=cm.data[5]; pgmData[localIndex+6]=cm.data[6]; pgmData[localIndex+7]=cm.data[7]; |
||
| 159 | |||
| 64 | johboh | 160 | pgs = pgsWAIT_PGM_PACKET; |
| 161 | } |
||
| 162 | |||
| 163 | |||
| 164 | break; |
||
| 165 | |||
| 166 | |||
| 167 | case pgsWAIT_PGM_PACKET: |
||
| 168 | |||
| 169 | |||
| 170 | // If programming packet... |
||
| 67 | johboh | 171 | if (hasPacket==TRUE && cm.funct==FUNCT_BOOTLOADER && (cm.funcc & 0x3)==FUNCC_BOOT_PGM && cm.nid==MY_NID && cm.sid==programmerSid) |
| 64 | johboh | 172 | { |
| 67 | johboh | 173 | BYTE localIndex = (BYTE)((cm.funcc & 0x1C)>>2)*8; |
| 64 | johboh | 174 | // Save bytes in memory, inc received bytes. |
| 67 | johboh | 175 | pgmData[localIndex+0]=cm.data[0]; pgmData[localIndex+1]=cm.data[1]; pgmData[localIndex+2]=cm.data[2]; pgmData[localIndex+3]=cm.data[3]; |
| 176 | pgmData[localIndex+4]=cm.data[4]; pgmData[localIndex+5]=cm.data[5]; pgmData[localIndex+6]=cm.data[6]; pgmData[localIndex+7]=cm.data[7]; |
||
| 177 | |||
| 64 | johboh | 178 | bytesReceived += 8; |
| 179 | pgs = pgsWAIT_PGM_PACKET; |
||
| 180 | } |
||
| 181 | |||
| 182 | // If adress packet (control packet).. |
||
| 183 | if (hasPacket==TRUE && cm.funct==FUNCT_BOOTLOADER && cm.funcc==FUNCC_BOOT_ADDR && cm.nid==MY_NID && cm.sid==programmerSid) |
||
| 184 | { |
||
| 185 | // Send ack and goto wait first packet. |
||
| 67 | johboh | 186 | // save adress. |
| 64 | johboh | 187 | errMsg = ERR_NO_ERROR; |
| 188 | afterAckPgs = pgsWAIT_FIRST_PGM_PACKET; |
||
| 189 | pgs = pgsSEND_ACK; |
||
| 190 | } |
||
| 191 | |||
| 192 | // If end packet... |
||
| 193 | if (hasPacket==TRUE && cm.funct==FUNCT_BOOTLOADER && cm.funcc==FUNCC_BOOT_DONE && cm.nid==MY_NID && cm.sid==programmerSid) |
||
| 194 | { |
||
| 195 | // write program. |
||
| 196 | // If no bytes received at all, assume end. |
||
| 197 | // If not 64 bytes received, send error ack and wait for first packet. |
||
| 198 | // If 64, write. |
||
| 199 | |||
| 200 | if (bytesReceived==0) |
||
| 201 | { |
||
| 202 | // No received, done. |
||
| 203 | errMsg = ERR_NO_ERROR; |
||
| 204 | afterAckPgs = pgsDONE; |
||
| 205 | pgs = pgsSEND_ACK; |
||
| 206 | } |
||
| 207 | else if (bytesReceived!=64) |
||
| 208 | { |
||
| 209 | errMsg = ERR_ERROR; |
||
| 210 | afterAckPgs = pgsWAIT_FIRST_PGM_PACKET; |
||
| 211 | pgs = pgsSEND_ACK; |
||
| 212 | } |
||
| 213 | else |
||
| 214 | { |
||
| 215 | pgs = pgsWRITE_PROGRAM; |
||
| 216 | afterAckPgs = pgsDONE; |
||
| 217 | } |
||
| 218 | } |
||
| 219 | |||
| 220 | // If bytes received 64, write.. |
||
| 221 | if (bytesReceived==64) |
||
| 222 | { |
||
| 223 | LED0_IO=~LED0_IO; |
||
| 224 | pgs = pgsWRITE_PROGRAM; |
||
| 225 | afterAckPgs = pgsWAIT_PGM_PACKET; |
||
| 226 | // TODO! Send ack more than once.. |
||
| 227 | } |
||
| 228 | |||
| 229 | |||
| 230 | break; |
||
| 231 | |||
| 232 | |||
| 233 | case pgsWRITE_PROGRAM: |
||
| 234 | |||
| 67 | johboh | 235 | |
| 64 | johboh | 236 | // Write program and send ack. |
| 67 | johboh | 237 | |
| 68 | johboh | 238 | // Check addr limit |
| 239 | if (pgmAddress<RM_RESET_VECTOR) |
||
| 240 | { |
||
| 241 | errMsg = ERR_ERROR; |
||
| 242 | pgs = pgsSEND_ACK; |
||
| 243 | //Not allowed to write here! |
||
| 244 | |||
| 245 | } |
||
| 246 | |||
| 67 | johboh | 247 | //Load Table pointer registers with base address to erase. |
| 248 | TBLPTRU = (BYTE)((pgmAddress & 0xFF0000)>>16); |
||
| 249 | TBLPTRH = (BYTE)((pgmAddress & 0xFF00)>>8); |
||
| 250 | TBLPTRL = (BYTE)(pgmAddress & 0xFF); |
||
| 251 | |||
| 252 | // point to Flash program memory |
||
| 253 | EECON1bits.EEPGD = 1; |
||
| 254 | // access Flash program memory |
||
| 255 | EECON1bits.CFGS = 0; |
||
| 256 | // enable write to memory |
||
| 257 | EECON1bits.WREN = 1; |
||
| 258 | // enable Row Erase operation |
||
| 259 | EECON1bits.FREE = 1; |
||
| 260 | // disable interrupts |
||
| 261 | INTCONbits.GIE = 0; |
||
| 262 | |||
| 263 | // Do it! |
||
| 264 | EECON2 = 0x55; |
||
| 265 | EECON2 = 0xAA; |
||
| 266 | EECON1bits.WR = 1; |
||
| 267 | |||
| 268 | // enable interrupts |
||
| 269 | INTCONbits.GIE = 1; |
||
| 270 | |||
| 271 | //Load Table pointer registers with base address to program. |
||
| 272 | TBLPTRU = (BYTE)((pgmAddress & 0xFF0000)>>16); |
||
| 273 | TBLPTRH = (BYTE)((pgmAddress & 0xFF00)>>8); |
||
| 274 | TBLPTRL = (BYTE)(pgmAddress & 0xFF); |
||
| 275 | |||
| 276 | // Load bytes |
||
| 277 | for(i=0;i<63;i++) |
||
| 278 | { |
||
| 279 | TABLAT=pgmData[i]; |
||
| 280 | TBLWTPOSTINC_Func(); |
||
| 281 | } |
||
| 282 | TABLAT=pgmData[63]; |
||
| 283 | TBLWT_Func(); |
||
| 284 | |||
| 285 | |||
| 286 | // point to Flash program memory |
||
| 287 | EECON1bits.EEPGD = 1; |
||
| 288 | // access Flash program memory |
||
| 289 | EECON1bits.CFGS = 0; |
||
| 290 | // enable write to memory |
||
| 291 | EECON1bits.WREN = 1; |
||
| 292 | // disable interrupts |
||
| 293 | INTCONbits.GIE = 0; |
||
| 294 | |||
| 295 | // Do it! |
||
| 296 | EECON2 = 0x55; |
||
| 297 | EECON2 = 0xAA; |
||
| 298 | EECON1bits.WR = 1; |
||
| 299 | |||
| 300 | // enable interrupts |
||
| 301 | INTCONbits.GIE = 1; |
||
| 302 | |||
| 303 | // disable write to memory |
||
| 304 | EECON1bits.WREN = 0; |
||
| 305 | |||
| 64 | johboh | 306 | pgmAddress += 64; |
| 307 | bytesReceived = 0; |
||
| 308 | errMsg = ERR_NO_ERROR; |
||
| 309 | pgs = pgsSEND_ACK; |
||
| 310 | |||
| 311 | break; |
||
| 312 | |||
| 313 | |||
| 314 | case pgsDONE: |
||
| 67 | johboh | 315 | _asm goto RM_RESET_VECTOR _endasm |
| 64 | johboh | 316 | break; |
| 317 | |||
| 318 | |||
| 319 | |||
| 320 | |||
| 321 | default: |
||
| 322 | pgs = pgsWATING_START; |
||
| 323 | break; |
||
| 324 | } |
||
| 325 | |||
| 326 | |||
| 53 | johboh | 327 | } |
| 328 | } |
||
| 329 | |||
| 330 | |||
| 331 | /* |
||
| 332 | * Function: mainInit |
||
| 333 | * |
||
| 334 | * Input: none |
||
| 335 | * Output: none |
||
| 336 | * Pre-conditions: none |
||
| 337 | * Affects: Se code |
||
| 338 | * Depends: none. |
||
| 339 | */ |
||
| 340 | void mainInit() |
||
| 341 | { |
||
| 342 | LED0_TRIS=0; |
||
| 343 | |||
| 344 | // Enable internal PORTB pull-ups |
||
| 345 | INTCON2bits.RBPU = 0; |
||
| 346 | |||
| 347 | // Enable Interrupts |
||
| 348 | INTCONbits.GIEH = 1; |
||
| 349 | INTCONbits.GIEL = 1; |
||
| 350 | |||
| 351 | // Enable interrupt prirority |
||
| 352 | RCONbits.IPEN=1; |
||
| 353 | |||
| 354 | |||
| 355 | } |
||
| 356 | |||
| 64 | johboh | 357 | |
| 358 | |||
| 359 | /// CAN------------------------------------------------------- |
||
| 360 | |||
| 361 | |||
| 362 | #ifdef USE_CAN |
||
| 363 | |||
| 364 | |||
| 53 | johboh | 365 | /* |
| 64 | johboh | 366 | * Function: canInit |
| 53 | johboh | 367 | * |
| 64 | johboh | 368 | * Input: none |
| 53 | johboh | 369 | * Output: none |
| 64 | johboh | 370 | * Pre-conditions: none |
| 371 | * Affects: Changes can registers. |
||
| 53 | johboh | 372 | * Depends: none. |
| 373 | */ |
||
| 64 | johboh | 374 | void canInit() |
| 53 | johboh | 375 | { |
| 64 | johboh | 376 | CANCON = 0x80; //request config mode |
| 377 | while ((CANSTAT & 0xE0) != 0x80 ); //wait for config mode request |
||
| 378 | |||
| 379 | // BAUD AND TQS |
||
| 380 | |||
| 381 | BRGCON1=0; |
||
| 382 | |||
| 383 | // Sync_Seq = 2 x TQ = 1 |
||
| 384 | BRGCON1bits.SJW1=0; |
||
| 385 | BRGCON1bits.SJW0=1; |
||
| 386 | |||
| 387 | // Setting BRP. |
||
| 388 | BRGCON1=BRGCON1|CAN_BRP; |
||
| 389 | |||
| 390 | // Maximum PHEG1 |
||
| 391 | BRGCON2bits.SEG2PHTS = 1; |
||
| 392 | |||
| 393 | // Phase_Seg1 = 2 x TQ = 1 |
||
| 394 | BRGCON2bits.SEG1PH2 = 0; |
||
| 395 | BRGCON2bits.SEG1PH1 = 0; |
||
| 396 | BRGCON2bits.SEG1PH0 = 1; |
||
| 397 | |||
| 398 | // Prop_Seq = 2 x TQ = 1 |
||
| 399 | BRGCON2bits.PRSEG2 = 0; |
||
| 400 | BRGCON2bits.PRSEG1 = 0; |
||
| 401 | BRGCON2bits.PRSEG0 = 1; |
||
| 402 | |||
| 403 | // Enableing bus wake-up |
||
| 404 | BRGCON3bits.WAKDIS = 0; |
||
| 405 | |||
| 406 | // Dont use filter when wakeup |
||
| 407 | BRGCON3bits.WAKFIL = 0; |
||
| 408 | |||
| 409 | // Phase_Seg2 = 2 x TQ = 1 |
||
| 410 | BRGCON3bits.SEG2PH2 = 0; |
||
| 411 | BRGCON3bits.SEG2PH1 = 0; |
||
| 412 | BRGCON3bits.SEG2PH0 = 1; |
||
| 413 | |||
| 414 | ECANCON=0; |
||
| 415 | ECANCONbits.MDSEL1 = 0; |
||
| 416 | ECANCONbits.MDSEL0 = 1; |
||
| 417 | |||
| 418 | |||
| 419 | // FILTERS AND MASKS |
||
| 420 | RXB0CONbits.RXM1=1; |
||
| 421 | RXB0CONbits.RXM0=0; |
||
| 422 | |||
| 423 | |||
| 424 | // INTERRUPTS |
||
| 425 | |||
| 426 | // Diable transmit interrupt |
||
| 427 | TXBIE = 0; |
||
| 428 | |||
| 429 | //rx no interrupt |
||
| 430 | PIR3 = 0; |
||
| 431 | PIE3 = 0; |
||
| 432 | |||
| 433 | |||
| 434 | // Programmable no buffers interrupt |
||
| 435 | BIE0 = 0x00; |
||
| 436 | |||
| 437 | |||
| 438 | //loopback mode or not |
||
| 439 | #ifdef CAN_LOOPBACK_MODE |
||
| 440 | CANCON = 0x40;//request loopback mode |
||
| 441 | while ((CANSTAT & 0xE0) != 0x40 );//wait for loopback mode |
||
| 442 | #else |
||
| 443 | CANCON = 0x00;//request normal mode |
||
| 444 | while ((CANSTAT & 0xE0) != 0x00 );//wait for normal mode |
||
| 445 | #endif |
||
| 446 | |||
| 53 | johboh | 447 | } |
| 448 | |||
| 64 | johboh | 449 | |
| 450 | |||
| 451 | |||
| 452 | /* |
||
| 453 | * Function: canGetPacket |
||
| 454 | * |
||
| 455 | * Input: none |
||
| 456 | * Output: none |
||
| 457 | * Pre-conditions: a call to canISR and an packet is available and banked to RXB0 |
||
| 458 | * Affects: Calls canParse() function in main for parsing received packet. |
||
| 459 | * Depends: none. |
||
| 460 | */ |
||
| 461 | BOOL canGetPacket() |
||
| 462 | { |
||
| 463 | |||
| 464 | // Get which buffer that is ful. |
||
| 465 | if (RXB0CONbits.RXFUL) { ECANCON=(ECANCON&0b00000)|0b10000; } |
||
| 466 | else if (RXB1CONbits.RXFUL) { ECANCON=(ECANCON&0b00000)|0b10001; } |
||
| 467 | else if (B0CONbits.RXFUL) { ECANCON=(ECANCON&0b00000)|0b10010; } |
||
| 468 | else if (B1CONbits.RXFUL) { ECANCON=(ECANCON&0b00000)|0b10011; } |
||
| 469 | else if (B2CONbits.RXFUL) { ECANCON=(ECANCON&0b00000)|0b10100; } |
||
| 470 | else if (B3CONbits.RXFUL) { ECANCON=(ECANCON&0b00000)|0b10101; } |
||
| 471 | else if (B4CONbits.RXFUL) { ECANCON=(ECANCON&0b00000)|0b10110; } |
||
| 472 | else if (B5CONbits.RXFUL) { ECANCON=(ECANCON&0b00000)|0b10111; } |
||
| 473 | else return FALSE; |
||
| 474 | |||
| 475 | |||
| 476 | //RXB0SIDH 28 27 26 25 24 23 22 21 |
||
| 477 | //RXB0SIDL 20 19 18 xx xx xx 17 16 |
||
| 478 | //RXB0EIDH 15 14 13 12 11 10 09 08 |
||
| 479 | //RXB0EIDL 07 06 05 04 03 02 01 00 |
||
| 480 | |||
| 481 | //funct xx xx xx xx 28 27 26 25 |
||
| 482 | //funcc xx xx xx xx xx xx 24 23 22 21 20 19 18 17 16 15 |
||
| 483 | //nid xx xx 14 13 12 11 10 09 |
||
| 484 | //sid xx xx xx xx xx xx xx 08 07 06 05 04 03 02 01 00 |
||
| 485 | |||
| 486 | |||
| 487 | cm.funct=((RXB0SIDH & 0xF0)>>4); |
||
| 488 | cm.funcc=(((WORD)(RXB0SIDH & 0x0F))<<6)+(((WORD)(RXB0SIDL & 0xE0))>>2)+(((WORD)(RXB0SIDL & 0x03))<<1)+(((WORD)(RXB0EIDH & 0x80))>>7); |
||
| 489 | cm.nid=((RXB0EIDH & 0x7E)>>1); |
||
| 490 | cm.sid=(((WORD)(RXB0EIDH & 0x01))<<8)+RXB0EIDL; |
||
| 491 | |||
| 492 | |||
| 493 | // Data length |
||
| 494 | cm.data_length=(RXB0DLCbits.DLC3<<3)+(RXB0DLCbits.DLC2<<2)+(RXB0DLCbits.DLC1<<1)+RXB0DLCbits.DLC0; |
||
| 495 | |||
| 496 | // Remote request |
||
| 497 | cm.remote_request=(RXB0DLCbits.RXRTR==0?FALSE:TRUE); |
||
| 498 | |||
| 499 | // Data one bye one, for speed |
||
| 500 | cm.data[0]=RXB0D0; cm.data[1]=RXB0D1; |
||
| 501 | cm.data[2]=RXB0D2; cm.data[3]=RXB0D3; |
||
| 502 | cm.data[4]=RXB0D4; cm.data[5]=RXB0D5; |
||
| 503 | cm.data[6]=RXB0D6; cm.data[7]=RXB0D7; |
||
| 504 | |||
| 505 | // Clear ful status |
||
| 506 | RXB0CONbits.RXFUL=0; |
||
| 507 | |||
| 508 | return TRUE; |
||
| 509 | } |
||
| 510 | |||
| 511 | |||
| 512 | /* |
||
| 513 | * Function: canSendMessage |
||
| 514 | * |
||
| 515 | * Input: CAN_MESSAGE to send |
||
| 516 | * Output: True if packet scheduled sucess, false otherwise. |
||
| 517 | * Pre-conditions: canInit |
||
| 518 | * Affects: .. |
||
| 519 | * Depends: .. |
||
| 520 | */ |
||
| 521 | BOOL canSendMessage(CAN_PROTO_MESSAGE cm,CAN_PRIORITY prio) |
||
| 522 | { |
||
| 523 | |||
| 524 | if ( TXB0CONbits.TXREQ == 0 ) { ECANCON=(ECANCON&0b00000)|0b00011; } |
||
| 525 | if ( TXB1CONbits.TXREQ == 0 ) { ECANCON=(ECANCON&0b00000)|0b00100; } |
||
| 526 | if ( TXB2CONbits.TXREQ == 0 ) { ECANCON=(ECANCON&0b00000)|0b00101; } |
||
| 527 | // None of the transmit buffers were empty. |
||
| 528 | else { return FALSE;} |
||
| 529 | |||
| 530 | if (prio<0 || prio>3) prio = 0; |
||
| 531 | |||
| 532 | |||
| 533 | //RXB0SIDH 28 27 26 25 24 23 22 21 |
||
| 534 | //RXB0SIDL 20 19 18 xx xx xx 17 16 |
||
| 535 | //RXB0EIDH 15 14 13 12 11 10 09 08 |
||
| 536 | //RXB0EIDL 07 06 05 04 03 02 01 00 |
||
| 537 | |||
| 538 | //funct xx xx xx xx 28 27 26 25 |
||
| 539 | //funcc xx xx xx xx xx xx 24 23 22 21 20 19 18 17 16 15 |
||
| 540 | //nid xx xx 14 13 12 11 10 09 |
||
| 541 | //sid xx xx xx xx xx xx xx 08 07 06 05 04 03 02 01 00 |
||
| 542 | |||
| 543 | RXB0SIDH = (BYTE)((cm.funct & 0x0F)<<4)+(BYTE)((cm.funcc & 0x03C0)>>6); |
||
| 544 | RXB0SIDL = (BYTE)((cm.funcc & 0x003F)<<2)+(BYTE)((cm.funcc & 0x0006)>>1); |
||
| 545 | RXB0EIDH = (BYTE)((cm.funcc & 0x0001)<<7)+(BYTE)((cm.nid & 0x3F)<<1)+(BYTE)((cm.sid & 0x0100)>>8); |
||
| 546 | RXB0EIDL = (BYTE)((cm.sid & 0x00FF)); |
||
| 547 | |||
| 548 | // Data length |
||
| 549 | RXB0DLC = 0; |
||
| 550 | if (cm.data_length>8) RXB0DLC=8; else RXB0DLC=cm.data_length; |
||
| 551 | |||
| 552 | // Remote request |
||
| 553 | if (cm.remote_request==TRUE) |
||
| 554 | { |
||
| 555 | _asm |
||
| 556 | bsf RXB0DLC, 6, 0 |
||
| 557 | _endasm |
||
| 558 | } |
||
| 559 | else |
||
| 560 | { |
||
| 561 | _asm |
||
| 562 | bcf RXB0DLC, 6, 0 |
||
| 563 | _endasm |
||
| 564 | } |
||
| 565 | |||
| 566 | // Data one bye one, for speed |
||
| 567 | RXB0D0=cm.data[0]; RXB0D1=cm.data[1]; |
||
| 568 | RXB0D2=cm.data[2]; RXB0D3=cm.data[3]; |
||
| 569 | RXB0D4=cm.data[4]; RXB0D5=cm.data[5]; |
||
| 570 | RXB0D6=cm.data[6]; RXB0D7=cm.data[7]; |
||
| 571 | |||
| 572 | // set extended or not |
||
| 573 | RXB0SIDLbits.EXID=1; |
||
| 574 | |||
| 575 | // Priority |
||
| 576 | RXB0CON = (RXB0CON & 0b11111100) | prio; |
||
| 577 | |||
| 578 | // mark as redy to transmit |
||
| 579 | _asm |
||
| 580 | bsf RXB0CON, 3, 0 |
||
| 581 | _endasm |
||
| 582 | |||
| 583 | return TRUE; |
||
| 584 | |||
| 585 | } |
||
| 586 | |||
| 587 | |||
| 588 | |||
| 589 | #endif //USE_CAN |
||
| 67 | johboh | 590 | |
| 591 | |||
| 592 | |||
| 593 | |||
| 594 | void TBLRD_Func() |
||
| 595 | { |
||
| 596 | _asm |
||
| 597 | TBLRD |
||
| 598 | _endasm |
||
| 599 | } |
||
| 600 | |||
| 601 | void TBLWT_Func() |
||
| 602 | { |
||
| 603 | _asm |
||
| 604 | TBLWT |
||
| 605 | _endasm |
||
| 606 | } |
||
| 607 | |||
| 608 | |||
| 609 | void TBLWTPOSTINC_Func (void){ |
||
| 610 | _asm |
||
| 611 | TBLWTPOSTINC |
||
| 612 | _endasm |
||
| 613 | } |
||
| 614 | |||
| 615 | DWORD tickGet() |
||
| 616 | { |
||
| 617 | return tickCounter; |
||
| 618 | } |
||
| 619 | |||
| 620 | |||
| 621 | #pragma code user = RM_RESET_VECTOR |