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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 53 | johboh | 1 | /********************************************************************* |
| 2 | * |
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| 3 | * Main application |
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| 4 | * |
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| 5 | ********************************************************************* |
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| 88 | johboh | 6 | * FileName: $HeadURL: https://svn.auml.se/svn/HomeAutomation/trunk/EmbeddedSoftware/PIC/canBoot/Source/Main.c $ |
| 7 | * Last changed: $LastChangedDate: 2006-11-14 21:11:45 +0100 (Tue, 14 Nov 2006) $ |
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| 8 | * By: $LastChangedBy: johboh $ |
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| 9 | * Revision: $Revision: 96 $ |
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| 53 | johboh | 10 | ********************************************************************/ |
| 11 | |||
| 12 | #include <compiler.h> |
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| 13 | #include <stackTasks.h> |
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| 64 | johboh | 14 | #include <CANdefs.h> |
| 15 | #include <CAN.h> |
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| 67 | johboh | 16 | #include <boot.h> |
| 91 | johboh | 17 | #include <funcdefs.h> |
| 53 | johboh | 18 | |
| 67 | johboh | 19 | /** V E C T O R R E M A P P I N G *******************************************/ |
| 20 | |||
| 21 | #pragma code _HIGH_INTERRUPT_VECTOR = 0x000008 |
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| 22 | void _high_ISR (void) |
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| 23 | { |
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| 24 | _asm goto RM_HIGH_INTERRUPT_VECTOR _endasm |
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| 25 | } |
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| 26 | |||
| 27 | #pragma code _LOW_INTERRUPT_VECTOR = 0x000018 |
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| 28 | void _low_ISR (void) |
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| 29 | { |
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| 30 | _asm goto RM_LOW_INTERRUPT_VECTOR _endasm |
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| 31 | } |
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| 32 | |||
| 33 | #pragma code |
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| 34 | |||
| 35 | |||
| 53 | johboh | 36 | #ifdef USE_CAN |
| 37 | #include <CAN.h> |
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| 38 | #endif |
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| 39 | |||
| 64 | johboh | 40 | static CAN_PROTO_MESSAGE cm; |
| 41 | static BYTE ful=0; |
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| 42 | static DWORD cnt =0; |
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| 43 | |||
| 53 | johboh | 44 | static void mainInit(void); |
| 64 | johboh | 45 | static BOOL canGetPacket(void); |
| 67 | johboh | 46 | void TBLWT_Func(void); |
| 47 | void TBLWTPOSTINC_Func (void); |
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| 48 | void TBLRD_Func(void); |
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| 53 | johboh | 49 | |
| 67 | johboh | 50 | #define TICK_SUB_COUNTER_10MS 312 |
| 51 | #define PACKET_TIMEOUT 14 |
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| 52 | #define BOOTLOADER_INIT_TIMOUT 500 |
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| 64 | johboh | 53 | |
| 67 | johboh | 54 | DWORD tickCounter = 0; |
| 55 | DWORD tickSubCounter = 0; |
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| 56 | |||
| 57 | DWORD tickGet(void); |
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| 58 | |||
| 53 | johboh | 59 | void main() |
| 60 | { |
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| 64 | johboh | 61 | static PROGRAM_STATE pgs = pgsWATING_START; |
| 67 | johboh | 62 | static DWORD t = 0; |
| 64 | johboh | 63 | static WORD programmerSid=0; |
| 64 | |||
| 65 | static BYTE errMsg = ERR_NO_ERROR; |
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| 66 | static PROGRAM_STATE afterAckPgs = pgsWATING_START; |
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| 67 | static DWORD pgmAddress = 0; |
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| 68 | static BYTE bytesReceived = 0; |
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| 53 | johboh | 69 | |
| 67 | johboh | 70 | DWORD tBoot; |
| 71 | |||
| 72 | static BYTE pgmData[64]; |
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| 73 | |||
| 64 | johboh | 74 | static BYTE tmp; |
| 75 | |||
| 53 | johboh | 76 | // Inits |
| 77 | mainInit(); |
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| 78 | |||
| 79 | #ifdef USE_CAN |
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| 80 | canInit(); |
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| 81 | #endif |
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| 82 | |||
| 67 | johboh | 83 | tBoot = tickGet(); |
| 64 | johboh | 84 | |
| 85 | |||
| 86 | for(;;) |
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| 53 | johboh | 87 | { |
| 67 | johboh | 88 | BYTE i; |
| 64 | johboh | 89 | CAN_PROTO_MESSAGE outCm; |
| 90 | BOOL hasPacket = canGetPacket(); |
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| 91 | |||
| 67 | johboh | 92 | tickSubCounter++; |
| 93 | if (tickSubCounter>TICK_SUB_COUNTER_10MS) |
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| 64 | johboh | 94 | { |
| 67 | johboh | 95 | tickCounter++; |
| 96 | tickSubCounter=0; |
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| 88 | johboh | 97 | ClrWdt(); |
| 64 | johboh | 98 | } |
| 99 | |||
| 100 | switch(pgs) |
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| 101 | { |
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| 102 | case pgsWATING_START: |
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| 103 | // Check if there is bootloader start packet |
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| 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 |
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| 107 | pgmAddress = (((DWORD)cm.data[ADDRU_INDEX])<<16)+(((DWORD)cm.data[ADDRH_INDEX])<<8)+((DWORD)cm.data[ADDRL_INDEX]); |
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| 108 | programmerSid = cm.sid; |
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| 109 | t = tickGet(); |
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| 110 | errMsg = ERR_NO_ERROR; |
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| 111 | afterAckPgs = pgsWAIT_FIRST_PGM_PACKET; |
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| 112 | pgs = pgsSEND_ACK; |
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| 67 | johboh | 113 | // save pgm adress. |
| 114 | |||
| 64 | johboh | 115 | } |
| 116 | |||
| 67 | johboh | 117 | // Bootloader timeout |
| 118 | if ((tickGet()-tBoot)>BOOTLOADER_INIT_TIMOUT) |
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| 119 | { |
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| 120 | pgs = pgsDONE; |
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| 121 | } |
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| 64 | johboh | 122 | break; |
| 123 | |||
| 124 | case pgsSEND_ACK: |
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| 125 | // send ack |
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| 126 | outCm.funct = FUNCT_BOOTLOADER; |
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| 127 | outCm.funcc = FUNCC_BOOT_ACK; |
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| 128 | outCm.nid = MY_NID; |
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| 129 | outCm.sid = MY_ID; |
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| 130 | outCm.data_length = 8; |
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| 131 | outCm.data[ERR_INDEX] = errMsg; |
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| 132 | t = tickGet(); |
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| 133 | pgs = afterAckPgs; |
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| 134 | |||
| 135 | while(!canSendMessage(outCm,PRIO_HIGH)); |
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| 136 | break; |
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| 137 | |||
| 138 | |||
| 139 | case pgsWAIT_FIRST_PGM_PACKET: |
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| 140 | // wait for first pgm packet. |
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| 141 | if ((tickGet()-t)>PACKET_TIMEOUT) |
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| 142 | { |
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| 143 | // Timeout, resend ack. |
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| 144 | errMsg = ERR_NO_ERROR; |
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| 145 | afterAckPgs = pgsWAIT_FIRST_PGM_PACKET; |
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| 146 | pgs = pgsSEND_ACK; |
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| 147 | } |
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| 148 | |||
| 149 | // If programming packet... |
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| 67 | johboh | 150 | if (hasPacket==TRUE && cm.funct==FUNCT_BOOTLOADER && (cm.funcc & 0x3)==FUNCC_BOOT_PGM && cm.nid==MY_NID && cm.sid==programmerSid) |
| 64 | johboh | 151 | { |
| 67 | johboh | 152 | BYTE localIndex = (BYTE)((cm.funcc & 0x1C)>>2)*8; |
| 153 | |||
| 64 | johboh | 154 | // Save bytes in memory, setup start adress etc.. |
| 67 | johboh | 155 | bytesReceived = 8; |
| 156 | pgmData[localIndex+0]=cm.data[0]; pgmData[localIndex+1]=cm.data[1]; pgmData[localIndex+2]=cm.data[2]; pgmData[localIndex+3]=cm.data[3]; |
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| 157 | pgmData[localIndex+4]=cm.data[4]; pgmData[localIndex+5]=cm.data[5]; pgmData[localIndex+6]=cm.data[6]; pgmData[localIndex+7]=cm.data[7]; |
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| 158 | |||
| 64 | johboh | 159 | pgs = pgsWAIT_PGM_PACKET; |
| 160 | } |
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| 161 | |||
| 162 | |||
| 163 | break; |
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| 164 | |||
| 165 | |||
| 166 | case pgsWAIT_PGM_PACKET: |
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| 167 | |||
| 168 | |||
| 169 | // If programming packet... |
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| 67 | johboh | 170 | if (hasPacket==TRUE && cm.funct==FUNCT_BOOTLOADER && (cm.funcc & 0x3)==FUNCC_BOOT_PGM && cm.nid==MY_NID && cm.sid==programmerSid) |
| 64 | johboh | 171 | { |
| 67 | johboh | 172 | BYTE localIndex = (BYTE)((cm.funcc & 0x1C)>>2)*8; |
| 64 | johboh | 173 | // Save bytes in memory, inc received bytes. |
| 67 | johboh | 174 | pgmData[localIndex+0]=cm.data[0]; pgmData[localIndex+1]=cm.data[1]; pgmData[localIndex+2]=cm.data[2]; pgmData[localIndex+3]=cm.data[3]; |
| 175 | pgmData[localIndex+4]=cm.data[4]; pgmData[localIndex+5]=cm.data[5]; pgmData[localIndex+6]=cm.data[6]; pgmData[localIndex+7]=cm.data[7]; |
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| 176 | |||
| 64 | johboh | 177 | bytesReceived += 8; |
| 178 | pgs = pgsWAIT_PGM_PACKET; |
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| 179 | } |
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| 180 | |||
| 181 | // If adress packet (control packet).. |
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| 182 | if (hasPacket==TRUE && cm.funct==FUNCT_BOOTLOADER && cm.funcc==FUNCC_BOOT_ADDR && cm.nid==MY_NID && cm.sid==programmerSid) |
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| 183 | { |
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| 184 | // Send ack and goto wait first packet. |
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| 67 | johboh | 185 | // save adress. |
| 64 | johboh | 186 | errMsg = ERR_NO_ERROR; |
| 187 | afterAckPgs = pgsWAIT_FIRST_PGM_PACKET; |
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| 188 | pgs = pgsSEND_ACK; |
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| 189 | } |
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| 190 | |||
| 191 | // If end packet... |
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| 192 | if (hasPacket==TRUE && cm.funct==FUNCT_BOOTLOADER && cm.funcc==FUNCC_BOOT_DONE && cm.nid==MY_NID && cm.sid==programmerSid) |
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| 193 | { |
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| 194 | // write program. |
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| 195 | // If no bytes received at all, assume end. |
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| 196 | // If not 64 bytes received, send error ack and wait for first packet. |
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| 197 | // If 64, write. |
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| 198 | |||
| 199 | if (bytesReceived==0) |
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| 200 | { |
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| 201 | // No received, done. |
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| 202 | errMsg = ERR_NO_ERROR; |
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| 203 | afterAckPgs = pgsDONE; |
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| 204 | pgs = pgsSEND_ACK; |
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| 205 | } |
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| 206 | else if (bytesReceived!=64) |
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| 207 | { |
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| 208 | errMsg = ERR_ERROR; |
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| 209 | afterAckPgs = pgsWAIT_FIRST_PGM_PACKET; |
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| 210 | pgs = pgsSEND_ACK; |
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| 211 | } |
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| 212 | else |
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| 213 | { |
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| 214 | pgs = pgsWRITE_PROGRAM; |
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| 215 | afterAckPgs = pgsDONE; |
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| 216 | } |
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| 217 | } |
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| 218 | |||
| 219 | // If bytes received 64, write.. |
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| 220 | if (bytesReceived==64) |
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| 221 | { |
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| 222 | LED0_IO=~LED0_IO; |
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| 223 | pgs = pgsWRITE_PROGRAM; |
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| 224 | afterAckPgs = pgsWAIT_PGM_PACKET; |
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| 225 | // TODO! Send ack more than once.. |
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| 226 | } |
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| 227 | |||
| 228 | |||
| 229 | break; |
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| 230 | |||
| 231 | |||
| 232 | case pgsWRITE_PROGRAM: |
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| 233 | |||
| 88 | johboh | 234 | ClrWdt(); |
| 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) |
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| 240 | { |
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| 241 | errMsg = ERR_ERROR; |
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| 242 | pgs = pgsSEND_ACK; |
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| 243 | //Not allowed to write here! |
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| 244 | |||
| 245 | } |
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| 246 | |||
| 67 | johboh | 247 | //Load Table pointer registers with base address to erase. |
| 248 | TBLPTRU = (BYTE)((pgmAddress & 0xFF0000)>>16); |
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| 249 | TBLPTRH = (BYTE)((pgmAddress & 0xFF00)>>8); |
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| 250 | TBLPTRL = (BYTE)(pgmAddress & 0xFF); |
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| 251 | |||
| 252 | // point to Flash program memory |
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| 253 | EECON1bits.EEPGD = 1; |
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| 254 | // access Flash program memory |
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| 255 | EECON1bits.CFGS = 0; |
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| 256 | // enable write to memory |
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| 257 | EECON1bits.WREN = 1; |
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| 258 | // enable Row Erase operation |
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| 259 | EECON1bits.FREE = 1; |
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| 260 | // disable interrupts |
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| 261 | INTCONbits.GIE = 0; |
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| 262 | |||
| 263 | // Do it! |
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| 264 | EECON2 = 0x55; |
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| 265 | EECON2 = 0xAA; |
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| 266 | EECON1bits.WR = 1; |
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| 267 | |||
| 268 | // enable interrupts |
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| 269 | INTCONbits.GIE = 1; |
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| 270 | |||
| 271 | //Load Table pointer registers with base address to program. |
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| 272 | TBLPTRU = (BYTE)((pgmAddress & 0xFF0000)>>16); |
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| 273 | TBLPTRH = (BYTE)((pgmAddress & 0xFF00)>>8); |
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| 274 | TBLPTRL = (BYTE)(pgmAddress & 0xFF); |
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| 275 | |||
| 276 | // Load bytes |
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| 277 | for(i=0;i<63;i++) |
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| 278 | { |
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| 279 | TABLAT=pgmData[i]; |
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| 280 | TBLWTPOSTINC_Func(); |
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| 281 | } |
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| 282 | TABLAT=pgmData[63]; |
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| 283 | TBLWT_Func(); |
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| 284 | |||
| 285 | |||
| 286 | // point to Flash program memory |
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| 287 | EECON1bits.EEPGD = 1; |
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| 288 | // access Flash program memory |
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| 289 | EECON1bits.CFGS = 0; |
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| 290 | // enable write to memory |
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| 291 | EECON1bits.WREN = 1; |
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| 292 | // disable interrupts |
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| 293 | INTCONbits.GIE = 0; |
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| 294 | |||
| 295 | // Do it! |
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| 296 | EECON2 = 0x55; |
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| 297 | EECON2 = 0xAA; |
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| 298 | EECON1bits.WR = 1; |
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| 299 | |||
| 300 | // enable interrupts |
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| 301 | INTCONbits.GIE = 1; |
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| 302 | |||
| 303 | // disable write to memory |
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| 304 | EECON1bits.WREN = 0; |
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| 305 | |||
| 64 | johboh | 306 | pgmAddress += 64; |
| 307 | bytesReceived = 0; |
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| 308 | errMsg = ERR_NO_ERROR; |
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| 309 | pgs = pgsSEND_ACK; |
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| 310 | |||
| 311 | break; |
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| 312 | |||
| 313 | |||
| 314 | case pgsDONE: |
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| 67 | johboh | 315 | _asm goto RM_RESET_VECTOR _endasm |
| 64 | johboh | 316 | break; |
| 317 | |||
| 318 | |||
| 319 | |||
| 320 | |||
| 321 | default: |
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| 322 | pgs = pgsWATING_START; |
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| 323 | break; |
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| 324 | } |
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| 325 | |||
| 326 | |||
| 53 | johboh | 327 | } |
| 328 | } |
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| 329 | |||
| 330 | |||
| 331 | /* |
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| 332 | * Function: mainInit |
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| 333 | * |
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| 334 | * Input: none |
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| 335 | * Output: none |
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| 336 | * Pre-conditions: none |
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| 337 | * Affects: Se code |
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| 338 | * Depends: none. |
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| 339 | */ |
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| 340 | void mainInit() |
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| 341 | { |
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| 342 | LED0_TRIS=0; |
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| 343 | |||
| 344 | // Enable internal PORTB pull-ups |
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| 345 | INTCON2bits.RBPU = 0; |
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| 346 | |||
| 347 | // Enable Interrupts |
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| 348 | INTCONbits.GIEH = 1; |
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| 349 | INTCONbits.GIEL = 1; |
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| 350 | |||
| 351 | // Enable interrupt prirority |
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| 352 | RCONbits.IPEN=1; |
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| 353 | |||
| 354 | |||
| 355 | } |
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| 356 | |||
| 64 | johboh | 357 | |
| 358 | |||
| 359 | /// CAN------------------------------------------------------- |
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| 360 | |||
| 361 | |||
| 362 | #ifdef USE_CAN |
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| 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. |
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| 53 | johboh | 372 | * Depends: none. |
| 373 | */ |
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| 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 |
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| 378 | |||
| 379 | // BAUD AND TQS |
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| 380 | |||
| 381 | BRGCON1=0; |
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| 382 | |||
| 383 | // Sync_Seq = 2 x TQ = 1 |
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| 384 | BRGCON1bits.SJW1=0; |
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| 385 | BRGCON1bits.SJW0=1; |
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| 386 | |||
| 387 | // Setting BRP. |
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| 388 | BRGCON1=BRGCON1|CAN_BRP; |
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| 389 | |||
| 390 | // Maximum PHEG1 |
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| 391 | BRGCON2bits.SEG2PHTS = 1; |
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| 392 | |||
| 393 | // Phase_Seg1 = 2 x TQ = 1 |
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| 394 | BRGCON2bits.SEG1PH2 = 0; |
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| 395 | BRGCON2bits.SEG1PH1 = 0; |
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| 396 | BRGCON2bits.SEG1PH0 = 1; |
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| 397 | |||
| 398 | // Prop_Seq = 2 x TQ = 1 |
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| 399 | BRGCON2bits.PRSEG2 = 0; |
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| 400 | BRGCON2bits.PRSEG1 = 0; |
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| 401 | BRGCON2bits.PRSEG0 = 1; |
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| 402 | |||
| 403 | // Enableing bus wake-up |
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| 404 | BRGCON3bits.WAKDIS = 0; |
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| 405 | |||
| 406 | // Dont use filter when wakeup |
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| 407 | BRGCON3bits.WAKFIL = 0; |
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| 408 | |||
| 409 | // Phase_Seg2 = 2 x TQ = 1 |
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| 410 | BRGCON3bits.SEG2PH2 = 0; |
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| 411 | BRGCON3bits.SEG2PH1 = 0; |
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| 412 | BRGCON3bits.SEG2PH0 = 1; |
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| 413 | |||
| 414 | ECANCON=0; |
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| 96 | johboh | 415 | ECANCONbits.MDSEL1 = 1; |
| 416 | ECANCONbits.MDSEL0 = 0; |
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| 64 | johboh | 417 | |
| 418 | |||
| 419 | // FILTERS AND MASKS |
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| 420 | RXB0CONbits.RXM1=1; |
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| 421 | RXB0CONbits.RXM0=0; |
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| 422 | |||
| 423 | |||
| 424 | // INTERRUPTS |
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| 425 | |||
| 426 | // Diable transmit interrupt |
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| 427 | TXBIE = 0; |
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| 428 | |||
| 429 | //rx no interrupt |
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| 430 | PIR3 = 0; |
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| 431 | PIE3 = 0; |
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| 432 | |||
| 433 | |||
| 434 | // Programmable no buffers interrupt |
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| 435 | BIE0 = 0x00; |
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| 436 | |||
| 437 | |||
| 438 | //loopback mode or not |
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| 439 | #ifdef CAN_LOOPBACK_MODE |
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| 440 | CANCON = 0x40;//request loopback mode |
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| 441 | while ((CANSTAT & 0xE0) != 0x40 );//wait for loopback mode |
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| 442 | #else |
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| 443 | CANCON = 0x00;//request normal mode |
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| 444 | while ((CANSTAT & 0xE0) != 0x00 );//wait for normal mode |
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| 445 | #endif |
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| 446 | |||
| 53 | johboh | 447 | } |
| 448 | |||
| 64 | johboh | 449 | |
| 450 | |||
| 451 | |||
| 452 | /* |
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| 453 | * Function: canGetPacket |
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| 454 | * |
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| 455 | * Input: none |
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| 456 | * Output: none |
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| 457 | * Pre-conditions: a call to canISR and an packet is available and banked to RXB0 |
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| 458 | * Affects: Calls canParse() function in main for parsing received packet. |
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| 459 | * Depends: none. |
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| 460 | */ |
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| 461 | BOOL canGetPacket() |
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| 462 | { |
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| 463 | |||
| 464 | // Get which buffer that is ful. |
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| 96 | johboh | 465 | ECANCON=(ECANCON&0b00000)|(0b10000|(CANCON&0x0F)); |
| 466 | if (!RXB0CONbits.RXFUL) return FALSE; |
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| 467 | |||
| 64 | johboh | 468 | //RXB0SIDH 28 27 26 25 24 23 22 21 |
| 469 | //RXB0SIDL 20 19 18 xx xx xx 17 16 |
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| 470 | //RXB0EIDH 15 14 13 12 11 10 09 08 |
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| 471 | //RXB0EIDL 07 06 05 04 03 02 01 00 |
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| 472 | |||
| 473 | //funct xx xx xx xx 28 27 26 25 |
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| 474 | //funcc xx xx xx xx xx xx 24 23 22 21 20 19 18 17 16 15 |
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| 475 | //nid xx xx 14 13 12 11 10 09 |
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| 476 | //sid xx xx xx xx xx xx xx 08 07 06 05 04 03 02 01 00 |
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| 477 | |||
| 478 | |||
| 479 | cm.funct=((RXB0SIDH & 0xF0)>>4); |
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| 480 | cm.funcc=(((WORD)(RXB0SIDH & 0x0F))<<6)+(((WORD)(RXB0SIDL & 0xE0))>>2)+(((WORD)(RXB0SIDL & 0x03))<<1)+(((WORD)(RXB0EIDH & 0x80))>>7); |
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| 481 | cm.nid=((RXB0EIDH & 0x7E)>>1); |
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| 482 | cm.sid=(((WORD)(RXB0EIDH & 0x01))<<8)+RXB0EIDL; |
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| 483 | |||
| 484 | |||
| 485 | // Data length |
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| 486 | cm.data_length=(RXB0DLCbits.DLC3<<3)+(RXB0DLCbits.DLC2<<2)+(RXB0DLCbits.DLC1<<1)+RXB0DLCbits.DLC0; |
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| 487 | |||
| 488 | // Data one bye one, for speed |
||
| 489 | cm.data[0]=RXB0D0; cm.data[1]=RXB0D1; |
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| 490 | cm.data[2]=RXB0D2; cm.data[3]=RXB0D3; |
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| 491 | cm.data[4]=RXB0D4; cm.data[5]=RXB0D5; |
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| 492 | cm.data[6]=RXB0D6; cm.data[7]=RXB0D7; |
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| 493 | |||
| 494 | // Clear ful status |
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| 495 | RXB0CONbits.RXFUL=0; |
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| 496 | |||
| 497 | return TRUE; |
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| 498 | } |
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| 499 | |||
| 500 | |||
| 501 | /* |
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| 502 | * Function: canSendMessage |
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| 503 | * |
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| 504 | * Input: CAN_MESSAGE to send |
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| 505 | * Output: True if packet scheduled sucess, false otherwise. |
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| 506 | * Pre-conditions: canInit |
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| 507 | * Affects: .. |
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| 508 | * Depends: .. |
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| 509 | */ |
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| 510 | BOOL canSendMessage(CAN_PROTO_MESSAGE cm,CAN_PRIORITY prio) |
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| 511 | { |
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| 512 | |||
| 513 | if ( TXB0CONbits.TXREQ == 0 ) { ECANCON=(ECANCON&0b00000)|0b00011; } |
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| 514 | if ( TXB1CONbits.TXREQ == 0 ) { ECANCON=(ECANCON&0b00000)|0b00100; } |
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| 515 | if ( TXB2CONbits.TXREQ == 0 ) { ECANCON=(ECANCON&0b00000)|0b00101; } |
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| 516 | // None of the transmit buffers were empty. |
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| 517 | else { return FALSE;} |
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| 518 | |||
| 519 | if (prio<0 || prio>3) prio = 0; |
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| 520 | |||
| 521 | |||
| 522 | //RXB0SIDH 28 27 26 25 24 23 22 21 |
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| 523 | //RXB0SIDL 20 19 18 xx xx xx 17 16 |
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| 524 | //RXB0EIDH 15 14 13 12 11 10 09 08 |
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| 525 | //RXB0EIDL 07 06 05 04 03 02 01 00 |
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| 526 | |||
| 527 | //funct xx xx xx xx 28 27 26 25 |
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| 528 | //funcc xx xx xx xx xx xx 24 23 22 21 20 19 18 17 16 15 |
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| 529 | //nid xx xx 14 13 12 11 10 09 |
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| 530 | //sid xx xx xx xx xx xx xx 08 07 06 05 04 03 02 01 00 |
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| 531 | |||
| 532 | RXB0SIDH = (BYTE)((cm.funct & 0x0F)<<4)+(BYTE)((cm.funcc & 0x03C0)>>6); |
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| 533 | RXB0SIDL = (BYTE)((cm.funcc & 0x003F)<<2)+(BYTE)((cm.funcc & 0x0006)>>1); |
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| 534 | RXB0EIDH = (BYTE)((cm.funcc & 0x0001)<<7)+(BYTE)((cm.nid & 0x3F)<<1)+(BYTE)((cm.sid & 0x0100)>>8); |
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| 535 | RXB0EIDL = (BYTE)((cm.sid & 0x00FF)); |
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| 536 | |||
| 537 | // Data length |
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| 538 | RXB0DLC = 0; |
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| 539 | if (cm.data_length>8) RXB0DLC=8; else RXB0DLC=cm.data_length; |
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| 540 | |||
| 88 | johboh | 541 | // NOT Remote request |
| 542 | _asm |
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| 543 | bcf RXB0DLC, 6, 0 |
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| 544 | _endasm |
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| 64 | johboh | 545 | |
| 88 | johboh | 546 | |
| 64 | johboh | 547 | // Data one bye one, for speed |
| 548 | RXB0D0=cm.data[0]; RXB0D1=cm.data[1]; |
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| 549 | RXB0D2=cm.data[2]; RXB0D3=cm.data[3]; |
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| 550 | RXB0D4=cm.data[4]; RXB0D5=cm.data[5]; |
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| 551 | RXB0D6=cm.data[6]; RXB0D7=cm.data[7]; |
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| 552 | |||
| 553 | // set extended or not |
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| 554 | RXB0SIDLbits.EXID=1; |
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| 555 | |||
| 556 | // Priority |
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| 557 | RXB0CON = (RXB0CON & 0b11111100) | prio; |
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| 558 | |||
| 559 | // mark as redy to transmit |
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| 560 | _asm |
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| 561 | bsf RXB0CON, 3, 0 |
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| 562 | _endasm |
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| 563 | |||
| 564 | return TRUE; |
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| 565 | |||
| 566 | } |
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| 567 | |||
| 568 | |||
| 569 | |||
| 570 | #endif //USE_CAN |
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| 67 | johboh | 571 | |
| 572 | |||
| 573 | |||
| 574 | |||
| 575 | void TBLRD_Func() |
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| 576 | { |
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| 577 | _asm |
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| 578 | TBLRD |
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| 579 | _endasm |
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| 580 | } |
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| 581 | |||
| 582 | void TBLWT_Func() |
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| 583 | { |
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| 584 | _asm |
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| 585 | TBLWT |
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| 586 | _endasm |
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| 587 | } |
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| 588 | |||
| 589 | |||
| 590 | void TBLWTPOSTINC_Func (void){ |
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| 591 | _asm |
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| 592 | TBLWTPOSTINC |
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| 593 | _endasm |
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| 594 | } |
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| 595 | |||
| 596 | DWORD tickGet() |
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| 597 | { |
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| 598 | return tickCounter; |
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| 599 | } |
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| 600 | |||
| 601 | |||
| 602 | #pragma code user = RM_RESET_VECTOR |