Tick Tock / Mbed 2 deprecated CANcan

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Dependencies:   SDHCFileSystem mbed

main.cpp@15:3ff21ce810da, 2012-12-16 (annotated)

Committer:
TickTock
Date:
Sun Dec 16 17:25:59 2012 +0000
Revision:
15:3ff21ce810da
Parent:
14:ed5d2a503374
Child:
16:ec5fcd5d1bb8
Limit number of files to 100 - delete oldest (next fileNum)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
TickTock 1:dafb963c3c14 1 //CANcan.cpp
TickTock 8:6872945e8e91 2 //A dual canbus monitoring "blackbox" application for the Nissan Leaf
TickTock 8:6872945e8e91 3 //Dumps all messages to a file on the SDRAM
TickTock 8:6872945e8e91 4 //Todo:
TickTock 15:3ff21ce810da 5 // Get timestamp on files
TickTock 8:6872945e8e91 6 //
TickTock 8:6872945e8e91 7 // Connections:
TickTock 1:dafb963c3c14 8 //LEAF OBD
TickTock 7:281df0ba57d0 9 //1:
TickTock 1:dafb963c3c14 10 //2:
TickTock 1:dafb963c3c14 11 //3: AVCAN-L White/Blue
TickTock 7:281df0ba57d0 12 //4:
TickTock 1:dafb963c3c14 13 //5: VSS Brown,White/Brown
TickTock 7:281df0ba57d0 14 //6: CARCAN-H Green --> VP230b:7
TickTock 1:dafb963c3c14 15 //7:
TickTock 1:dafb963c3c14 16 //8: 12V-SW Orange,White/Orange
TickTock 1:dafb963c3c14 17 //9:
TickTock 1:dafb963c3c14 18 //10:
TickTock 1:dafb963c3c14 19 //11: AVCAN-H Blue
TickTock 7:281df0ba57d0 20 //12: EVCAN-L White/Grey --> VP230a:6
TickTock 7:281df0ba57d0 21 //13: EVCAN-H Grey --> VP230a:7
TickTock 7:281df0ba57d0 22 //14: CARCAN-L White/Green --> VP230b:6
TickTock 7:281df0ba57d0 23 //15: 6V
TickTock 7:281df0ba57d0 24 //16: 12V-AON Red/Blue,Blue/Red ----|<---- LPC1768:2
TickTock 7:281df0ba57d0 25 //note 1: pins 4 & 5 longer
TickTock 7:281df0ba57d0 26 //note 2: pins 12 & 13 next to key
TickTock 7:281df0ba57d0 27 //note 3: pins 1 & 9 on right side looking into male connector with key on bottom
TickTock 1:dafb963c3c14 28
TickTock 8:6872945e8e91 29 //VP230{a,b}
TickTock 1:dafb963c3c14 30 //1:D
TickTock 1:dafb963c3c14 31 //2:GND
TickTock 1:dafb963c3c14 32 //3:VCC
TickTock 1:dafb963c3c14 33 //4:R
TickTock 1:dafb963c3c14 34 //5:Vref
TickTock 7:281df0ba57d0 35 //6:CANL --> OBD:12,14
TickTock 7:281df0ba57d0 36 //7:CANH --> OBD:13,6
TickTock 7:281df0ba57d0 37 //8:RS --> LPC1768:27,28
TickTock 0:1596b8644523 38
TickTock 0:1596b8644523 39 //LPC1768
TickTock 8:6872945e8e91 40 //1: VSS 6V
TickTock 8:6872945e8e91 41 //2: VIN (4.5-9V supply) ---->|---- OBD:16
TickTock 0:1596b8644523 42 //3: NC:VB
TickTock 0:1596b8644523 43 //4: NC:nR
TickTock 0:1596b8644523 44 //5: SPI:MOSI --> 6:SDRAM:DI
TickTock 0:1596b8644523 45 //6: SPI:MISO --> 2:SDRAM:DO
TickTock 0:1596b8644523 46 //7: SPI:SCLK --> 4:SDRAM:SCLK
TickTock 0:1596b8644523 47 //8: CS --> 7:SDRAM:CS
TickTock 1:dafb963c3c14 48 //9: CAN1:RX --> 4:CAN1:R
TickTock 1:dafb963c3c14 49 //10: CAN1:TX --> 1:CAN1:D
TickTock 8:6872945e8e91 50 //11: NC:RS --> 4:LCD:RS
TickTock 8:6872945e8e91 51 //12: NC:E --> 6:LCD:E
TickTock 8:6872945e8e91 52 //13: NC:D4 --> 11:LCD:D4
TickTock 8:6872945e8e91 53 //14: NC:D5 --> 12:LCD:D5
TickTock 8:6872945e8e91 54 //15: NC:D6 --> 13:LCD:D6
TickTock 8:6872945e8e91 55 //16: NC:D7 --> 14:LCD:D7
TickTock 0:1596b8644523 56 //17: CD --> 1:SDRAM:CD
TickTock 8:6872945e8e91 57 //18: NC:MON12V --> 4K to 12V, 1K to VSS (To be implemented)
TickTock 0:1596b8644523 58 //19: PB2
TickTock 0:1596b8644523 59 //20: PB1
TickTock 8:6872945e8e91 60 //21: NC:Spkr+
TickTock 8:6872945e8e91 61 //22: NC:Spkr- (optional complimentary output for more volume)
TickTock 0:1596b8644523 62 //23: NC:pwm
TickTock 8:6872945e8e91 63 //24: NC:LEDBLU --> 18:LCD:BLU (only used for tri-color displays)
TickTock 8:6872945e8e91 64 //25: NC:LEDGRN --> 17:LCD:GRN (only used for tri-color displays)
TickTock 8:6872945e8e91 65 //26: NC:LEDRED --> 16:LCD:RED
TickTock 0:1596b8644523 66 //27: CAN1:Sleep --> 8:CAN1:RS
TickTock 0:1596b8644523 67 //28: CAN2:Sleep --> 8:CAN2:RS
TickTock 1:dafb963c3c14 68 //29: CAN2:TX --> 1:CAN2:D
TickTock 1:dafb963c3c14 69 //30: CAN2:RX --> 4:CAN2:R
TickTock 0:1596b8644523 70 //31: NC:USB_D+
TickTock 0:1596b8644523 71 //32: NC:USB_D-
TickTock 0:1596b8644523 72 //33: NC:Eth_TD+
TickTock 0:1596b8644523 73 //34: NC:Eth_TD-
TickTock 0:1596b8644523 74 //35: NC:Eth_RD+
TickTock 0:1596b8644523 75 //36: NC:Eth_RD-
TickTock 0:1596b8644523 76 //37: NC:IF+
TickTock 0:1596b8644523 77 //38: NC:IF-
TickTock 1:dafb963c3c14 78 //39: NC:5Vout (only available when connected as USB device)
TickTock 0:1596b8644523 79 //40: VCC3.3
TickTock 0:1596b8644523 80
TickTock 8:6872945e8e91 81 #include "mbed.h"
TickTock 8:6872945e8e91 82 #include "CAN.h"
TickTock 8:6872945e8e91 83 #include "SDHCFileSystem.h"
TickTock 11:d97071bf877b 84 #include "PowerControl/PowerControl.h"
TickTock 11:d97071bf877b 85 #include "PowerControl/EthernetPowerControl.h"
TickTock 8:6872945e8e91 86
TickTock 8:6872945e8e91 87 #define upLine "\033[1A"
TickTock 8:6872945e8e91 88 #define maxBufLen 2048
TickTock 8:6872945e8e91 89 #define canTimeout 5
TickTock 15:3ff21ce810da 90 #define maxFileNum 100
TickTock 8:6872945e8e91 91
TickTock 1:dafb963c3c14 92 void Log (char *message);
TickTock 1:dafb963c3c14 93 void LogErr (char *message);
TickTock 6:594d9717e609 94 extern "C" void mbed_reset();
TickTock 1:dafb963c3c14 95
TickTock 1:dafb963c3c14 96 time_t seconds ;
TickTock 9:8396b76e42fc 97 DigitalIn CD(p17);
TickTock 9:8396b76e42fc 98 DigitalIn PB1( p20 );
TickTock 1:dafb963c3c14 99 SDFileSystem sd(p5, p6, p7, p8, "sd" ); // SDFileSystem::SDFileSystem(PinName mosi, PinName miso, PinName sclk, PinName cs, const char* name)
TickTock 1:dafb963c3c14 100 Timer timer;
TickTock 0:1596b8644523 101 DigitalOut led1(LED1);
TickTock 0:1596b8644523 102 DigitalOut led2(LED2);
TickTock 0:1596b8644523 103 DigitalOut led3(LED3);
TickTock 0:1596b8644523 104 DigitalOut led4(LED4);
TickTock 1:dafb963c3c14 105 CAN can1(p9, p10); // CAN1 uses pins 9 and 10 (rx, tx) and pin 27 (rs)
TickTock 2:55b2357f0cf9 106 DigitalOut can1_SleepMode(p27); // Use pin 27 to control the sleep mode of can1
TickTock 1:dafb963c3c14 107 CAN can2(p30, p29); // CAN2 uses pins 30 and 29 (rx, tx) and pin 28 (rs)
TickTock 2:55b2357f0cf9 108 DigitalOut can2_SleepMode(p28); // Use pin 28 to control the sleep mode of can2
TickTock 3:51134a275609 109 bool logOpen = false;
TickTock 2:55b2357f0cf9 110 FILE *file;
TickTock 2:55b2357f0cf9 111 char fileName[32] = "" ;
TickTock 4:fb373a391155 112 char writeBuffer[maxBufLen][13];
TickTock 13:544b15b00c2d 113 char c;
TickTock 12:7cd4e9303165 114 char sTemp[35] ;
TickTock 11:d97071bf877b 115 volatile int writePointer = 0;
TickTock 11:d97071bf877b 116 volatile int secsIdle = canTimeout;
TickTock 11:d97071bf877b 117 volatile bool canIdle = true;
TickTock 10:663bff0a6144 118 Serial pc(USBTX, USBRX);
TickTock 0:1596b8644523 119
TickTock 2:55b2357f0cf9 120 extern "C" void RTC_IRQHandler() {
TickTock 9:8396b76e42fc 121 timer.reset(); // zero ms at the-seconds-tic
TickTock 10:663bff0a6144 122 canIdle=(++secsIdle>canTimeout);
TickTock 8:6872945e8e91 123 LPC_RTC->ILR |= (1<<0); // clear interrupt to prepare for next
TickTock 2:55b2357f0cf9 124 }
TickTock 2:55b2357f0cf9 125
TickTock 2:55b2357f0cf9 126 extern "C" void RTC_Init (void) {
TickTock 2:55b2357f0cf9 127 LPC_RTC->ILR=0x00; // set up the RTC interrupts
TickTock 2:55b2357f0cf9 128 LPC_RTC->CIIR=0x01; // interrupts each second
TickTock 8:6872945e8e91 129 LPC_RTC->CCR = 0x01; // Clock enable
TickTock 9:8396b76e42fc 130 //NVIC_SetPriority( RTC_IRQn, 10 );
TickTock 2:55b2357f0cf9 131 NVIC_EnableIRQ( RTC_IRQn );
TickTock 2:55b2357f0cf9 132 }
TickTock 2:55b2357f0cf9 133
TickTock 2:55b2357f0cf9 134 unsigned short getTimeStamp() {
TickTock 2:55b2357f0cf9 135 int msec = timer.read_ms() ; // read ms from the timer
TickTock 2:55b2357f0cf9 136 unsigned long secs = time(NULL); // seconds past 12:00:00 AM 1 Jan 1900
TickTock 2:55b2357f0cf9 137 int isecs = secs%60 ; // modulo 60 for 0-59 seconds from RTC
TickTock 2:55b2357f0cf9 138 return ((isecs<<10)+msec) ; // return the two byte time stamp
TickTock 1:dafb963c3c14 139 }
TickTock 1:dafb963c3c14 140
TickTock 2:55b2357f0cf9 141 void readLog (){
TickTock 2:55b2357f0cf9 142 unsigned char c;
TickTock 2:55b2357f0cf9 143 int i=0;
TickTock 3:51134a275609 144 char lastMsgNum[]={0,0};
TickTock 3:51134a275609 145 char curMsgNum[]={0,0};
TickTock 3:51134a275609 146 char canNum=0;
TickTock 2:55b2357f0cf9 147 pc.printf("printing file\n");
TickTock 2:55b2357f0cf9 148 file = fopen(fileName, "r");
TickTock 2:55b2357f0cf9 149 if (file == NULL) {
TickTock 2:55b2357f0cf9 150 pc.printf("no file found\n");
TickTock 1:dafb963c3c14 151 }
TickTock 2:55b2357f0cf9 152 while (!feof(file)) {
TickTock 2:55b2357f0cf9 153 c=fgetc(file);
TickTock 2:55b2357f0cf9 154 pc.printf("%02x ",c);
TickTock 3:51134a275609 155 if (i==0){
TickTock 3:51134a275609 156 canNum=c;
TickTock 3:51134a275609 157 }else if (i==5){
TickTock 3:51134a275609 158 curMsgNum[canNum]=c;
TickTock 2:55b2357f0cf9 159 }
TickTock 2:55b2357f0cf9 160 if (++i>12) {
TickTock 3:51134a275609 161 if (curMsgNum[canNum]>(lastMsgNum[canNum]+1)) {
TickTock 2:55b2357f0cf9 162 pc.printf(" ***");
TickTock 2:55b2357f0cf9 163 }
TickTock 3:51134a275609 164 lastMsgNum[canNum]=curMsgNum[canNum];
TickTock 2:55b2357f0cf9 165 pc.printf("\n");
TickTock 2:55b2357f0cf9 166 i=0;
TickTock 2:55b2357f0cf9 167 }
TickTock 2:55b2357f0cf9 168 }
TickTock 10:663bff0a6144 169 pc.printf("\n\n");
TickTock 2:55b2357f0cf9 170 fclose(file);
TickTock 2:55b2357f0cf9 171 }
TickTock 1:dafb963c3c14 172
TickTock 2:55b2357f0cf9 173 void logCan (char mtype, CANMessage canRXmsg) {
TickTock 2:55b2357f0cf9 174 unsigned short ts = getTimeStamp();
TickTock 11:d97071bf877b 175 unsigned long secs = time(NULL); // seconds past 12:00:00 AM 1 Jan 1900
TickTock 9:8396b76e42fc 176 writeBuffer[writePointer][0]=mtype;
TickTock 11:d97071bf877b 177 writeBuffer[writePointer][1]=((secs%60)<<2)+((ts&0x300)>>8);
TickTock 9:8396b76e42fc 178 writeBuffer[writePointer][2]=ts&0xff;
TickTock 9:8396b76e42fc 179 writeBuffer[writePointer][3]=canRXmsg.id&0xff;
TickTock 9:8396b76e42fc 180 writeBuffer[writePointer][4]=(canRXmsg.id>>8)+(canRXmsg.len<<4);
TickTock 2:55b2357f0cf9 181 for (int i = 5; i<13; i++){
TickTock 9:8396b76e42fc 182 writeBuffer[writePointer][i]=canRXmsg.data[i-5];
TickTock 0:1596b8644523 183 }
TickTock 9:8396b76e42fc 184 if (++writePointer >= maxBufLen) {
TickTock 9:8396b76e42fc 185 writePointer = 0;
TickTock 4:fb373a391155 186 led4 = !led4;
TickTock 4:fb373a391155 187 }
TickTock 1:dafb963c3c14 188 }
TickTock 0:1596b8644523 189
TickTock 0:1596b8644523 190 void recieve1() {
TickTock 2:55b2357f0cf9 191 CANMessage msg1;
TickTock 9:8396b76e42fc 192 secsIdle=0; // reset deadman switch
TickTock 0:1596b8644523 193 can1.read(msg1);
TickTock 11:d97071bf877b 194 if(logOpen)
TickTock 11:d97071bf877b 195 logCan(1, msg1);
TickTock 11:d97071bf877b 196 led1 = !led1;
TickTock 0:1596b8644523 197 }
TickTock 2:55b2357f0cf9 198
TickTock 0:1596b8644523 199 void recieve2() {
TickTock 2:55b2357f0cf9 200 CANMessage msg2;
TickTock 9:8396b76e42fc 201 secsIdle=0; // reset deadman switch
TickTock 0:1596b8644523 202 can2.read(msg2);
TickTock 11:d97071bf877b 203 if(logOpen)
TickTock 11:d97071bf877b 204 logCan(2, msg2);
TickTock 11:d97071bf877b 205 led2 = !led2;
TickTock 0:1596b8644523 206 }
TickTock 0:1596b8644523 207
TickTock 0:1596b8644523 208 int main() {
TickTock 9:8396b76e42fc 209 int readPointer=0;
TickTock 11:d97071bf877b 210 unsigned long secs;
TickTock 10:663bff0a6144 211 pc.baud(460800); // change serial interface to pc to 450800, 8N1
TickTock 2:55b2357f0cf9 212 CANMessage tsMsg;
TickTock 7:281df0ba57d0 213 can1.frequency(500000);
TickTock 7:281df0ba57d0 214 can2.frequency(500000);
TickTock 10:663bff0a6144 215 can1_SleepMode = 1; // Monitor_only Mode
TickTock 10:663bff0a6144 216 can2_SleepMode = 1; // Monitor_only Mode
TickTock 0:1596b8644523 217 CD.mode(PullUp) ; //SDRAM Chip Detect
TickTock 2:55b2357f0cf9 218 PB1.mode(PullUp) ; //Pushbutton 1
TickTock 0:1596b8644523 219 can1.attach(&recieve1);
TickTock 0:1596b8644523 220 can2.attach(&recieve2);
TickTock 1:dafb963c3c14 221
TickTock 1:dafb963c3c14 222 timer.start() ;
TickTock 2:55b2357f0cf9 223 RTC_Init(); // start the RTC Interrupts that sync the timer
TickTock 12:7cd4e9303165 224
TickTock 12:7cd4e9303165 225 struct tm t; // pointer to a static tm structure
TickTock 12:7cd4e9303165 226
TickTock 12:7cd4e9303165 227 seconds = time(NULL);
TickTock 12:7cd4e9303165 228 t = *localtime(&seconds) ;
TickTock 14:ed5d2a503374 229 strftime(sTemp, 32, "%a %m/%d/%Y %X", &t);
TickTock 14:ed5d2a503374 230 pc.printf("\nCurrent time set to: %s\n", sTemp); // DAY MM/DD/YYYY HH:MM:SS
TickTock 14:ed5d2a503374 231 wait(1.1); // give time to sync
TickTock 14:ed5d2a503374 232
TickTock 14:ed5d2a503374 233 if (PB1==0) { //set time if pb pressed
TickTock 12:7cd4e9303165 234
TickTock 13:544b15b00c2d 235 pc.printf("\nEnter year (yyyy):");
TickTock 13:544b15b00c2d 236 pc.scanf("%s", &sTemp);
TickTock 13:544b15b00c2d 237 t.tm_year = atoi(sTemp);
TickTock 13:544b15b00c2d 238
TickTock 13:544b15b00c2d 239 pc.printf("\nEnter month (mm):");
TickTock 13:544b15b00c2d 240 pc.scanf("%2s", &sTemp);
TickTock 13:544b15b00c2d 241 t.tm_mon = atoi(sTemp);
TickTock 13:544b15b00c2d 242
TickTock 13:544b15b00c2d 243 pc.printf("\nEnter day (dd):");
TickTock 13:544b15b00c2d 244 pc.scanf("%2s", &sTemp);
TickTock 13:544b15b00c2d 245 t.tm_mday = atoi(sTemp);
TickTock 13:544b15b00c2d 246
TickTock 13:544b15b00c2d 247 pc.printf("\nEnter hour (hh):");
TickTock 13:544b15b00c2d 248 pc.scanf("%2s", &sTemp);
TickTock 13:544b15b00c2d 249 t.tm_hour = atoi(sTemp);
TickTock 13:544b15b00c2d 250
TickTock 13:544b15b00c2d 251 pc.printf("\nEnter minute (mm):");
TickTock 13:544b15b00c2d 252 pc.scanf("%2s", &sTemp);
TickTock 13:544b15b00c2d 253 t.tm_min = atoi(sTemp);
TickTock 13:544b15b00c2d 254
TickTock 13:544b15b00c2d 255 pc.printf("\nEnter seconds (ss):");
TickTock 13:544b15b00c2d 256 pc.scanf("%2s", &sTemp);
TickTock 13:544b15b00c2d 257 t.tm_sec = atoi(sTemp);
TickTock 12:7cd4e9303165 258
TickTock 12:7cd4e9303165 259 // adjust for tm structure required values
TickTock 12:7cd4e9303165 260 t.tm_year = t.tm_year - 1900;
TickTock 12:7cd4e9303165 261 t.tm_mon = t.tm_mon - 1;
TickTock 12:7cd4e9303165 262
TickTock 12:7cd4e9303165 263 // set the RTC
TickTock 12:7cd4e9303165 264 set_time(mktime(&t));
TickTock 12:7cd4e9303165 265 seconds = time(NULL);
TickTock 12:7cd4e9303165 266
TickTock 14:ed5d2a503374 267 pc.printf("\nRTC set to: " );
TickTock 12:7cd4e9303165 268 strftime(sTemp, 32, "%a %m/%d/%Y %X", localtime(&seconds));
TickTock 12:7cd4e9303165 269 pc.printf("%s\n", sTemp); // DAY MM/DD/YYYY HH:MM:SS
TickTock 12:7cd4e9303165 270 }
TickTock 1:dafb963c3c14 271
TickTock 6:594d9717e609 272 while (true) {
TickTock 6:594d9717e609 273 if(CD == 1) {
TickTock 11:d97071bf877b 274 if (!logOpen) { // Open new file if one is not already open
TickTock 11:d97071bf877b 275 int fileNum = 0;
TickTock 11:d97071bf877b 276 sprintf(fileName,"/sd/cancan%d.alc",fileNum);
TickTock 15:3ff21ce810da 277 pc.printf("Checking file %s\n",fileName);
TickTock 6:594d9717e609 278 file = fopen(fileName, "r");
TickTock 15:3ff21ce810da 279 while (!(file == NULL)) {
TickTock 11:d97071bf877b 280 fclose(file);
TickTock 15:3ff21ce810da 281 fileNum=++fileNum%maxFileNum;
TickTock 11:d97071bf877b 282 sprintf(fileName,"/sd/cancan%d.alc",fileNum);
TickTock 15:3ff21ce810da 283 pc.printf("Checking file %s\n",fileName);
TickTock 11:d97071bf877b 284 file = fopen(fileName, "r");
TickTock 15:3ff21ce810da 285 pc.printf("Checked file %s\n",fileName);
TickTock 11:d97071bf877b 286 }
TickTock 15:3ff21ce810da 287 //fclose(file); //close and reopen for write
TickTock 15:3ff21ce810da 288 pc.printf("Using file %s\n",fileName);
TickTock 11:d97071bf877b 289 file = fopen(fileName, "wb");
TickTock 15:3ff21ce810da 290
TickTock 11:d97071bf877b 291 if(file==NULL){
TickTock 11:d97071bf877b 292 pc.printf("\nUnable to open canlog\n\n\n\n");
TickTock 11:d97071bf877b 293 mbed_reset();
TickTock 11:d97071bf877b 294 } else {
TickTock 11:d97071bf877b 295 logOpen = true;
TickTock 11:d97071bf877b 296 readPointer=writePointer;
TickTock 15:3ff21ce810da 297 pc.printf("\nStarting Can Log %s\n",fileName);
TickTock 15:3ff21ce810da 298 //delete next opening (only maxFileNum files allowed on SDRAM)
TickTock 15:3ff21ce810da 299 sprintf(fileName,"/sd/cancan%d.alc",(fileNum+1)%maxFileNum);
TickTock 15:3ff21ce810da 300 pc.printf("Removing file %s\n",fileName);
TickTock 15:3ff21ce810da 301 remove(fileName);
TickTock 15:3ff21ce810da 302 file = fopen(fileName, "r");
TickTock 15:3ff21ce810da 303 if (file != NULL)
TickTock 15:3ff21ce810da 304 pc.printf("Unable to delete %s\n");
TickTock 15:3ff21ce810da 305 // write full timestamp
TickTock 11:d97071bf877b 306 secs = time(NULL); // seconds past 12:00:00 AM 1 Jan 1900
TickTock 11:d97071bf877b 307 tsMsg.id=0xfff;
TickTock 11:d97071bf877b 308 tsMsg.len=0xf;
TickTock 11:d97071bf877b 309 tsMsg.data[0]=secs&0xff;
TickTock 11:d97071bf877b 310 tsMsg.data[1]=(secs>>0)&0xff;
TickTock 11:d97071bf877b 311 tsMsg.data[2]=(secs>>16)&0xff;
TickTock 11:d97071bf877b 312 tsMsg.data[3]=secs>>24;
TickTock 11:d97071bf877b 313 tsMsg.data[4]=0xff;
TickTock 11:d97071bf877b 314 tsMsg.data[5]=0xff;
TickTock 11:d97071bf877b 315 tsMsg.data[6]=0xff;
TickTock 11:d97071bf877b 316 tsMsg.data[7]=0xff;
TickTock 15:3ff21ce810da 317 logCan(0,tsMsg);
TickTock 11:d97071bf877b 318 fclose(file);
TickTock 11:d97071bf877b 319 }
TickTock 11:d97071bf877b 320 } // if (!logOpen)
TickTock 9:8396b76e42fc 321 do {
TickTock 10:663bff0a6144 322 if (((writePointer+maxBufLen-readPointer)%maxBufLen)>(maxBufLen/2)||canIdle||(PB1==0)) {
TickTock 10:663bff0a6144 323 // Dump buffer if > 1/2 full, canbus has stopped, or PB1 pressed
TickTock 9:8396b76e42fc 324 if (logOpen) {
TickTock 9:8396b76e42fc 325 file = fopen(fileName, "ab");
TickTock 9:8396b76e42fc 326 if (file == NULL) {
TickTock 9:8396b76e42fc 327 logOpen = false;
TickTock 9:8396b76e42fc 328 pc.printf("Failed to append log file.\n\n");
TickTock 9:8396b76e42fc 329 } else {
TickTock 9:8396b76e42fc 330 while (readPointer != writePointer) {
TickTock 9:8396b76e42fc 331 for (int j = 0; j<13; j++){
TickTock 9:8396b76e42fc 332 fprintf(file,"%c",writeBuffer[readPointer][j]);
TickTock 9:8396b76e42fc 333 }
TickTock 9:8396b76e42fc 334 if(++readPointer >= maxBufLen)
TickTock 9:8396b76e42fc 335 readPointer=0;
TickTock 9:8396b76e42fc 336 }
TickTock 9:8396b76e42fc 337 led3 = !led3;
TickTock 9:8396b76e42fc 338 fclose(file);
TickTock 9:8396b76e42fc 339 }
TickTock 10:663bff0a6144 340 } // if (logOpen)
TickTock 9:8396b76e42fc 341 }
TickTock 10:663bff0a6144 342 if (canIdle) { // canbus idle --> sleep to save power
TickTock 13:544b15b00c2d 343 //LPC_RTC->CIIR=0x00; // block RTC interrupts
TickTock 10:663bff0a6144 344 led1=0;
TickTock 10:663bff0a6144 345 led2=0;
TickTock 10:663bff0a6144 346 led3=0;
TickTock 10:663bff0a6144 347 led4=0;
TickTock 11:d97071bf877b 348 secs = time(NULL); // seconds past 12:00:00 AM 1 Jan 1900
TickTock 10:663bff0a6144 349 while (secsIdle>canTimeout)
TickTock 11:d97071bf877b 350 //DeepPowerDown();
TickTock 10:663bff0a6144 351 __wfi(); // freeze CPU and wait for interrupt (from canbus)
TickTock 11:d97071bf877b 352 if (time(NULL)>(secs+3600))
TickTock 11:d97071bf877b 353 logOpen = false; // Start new file if asleep for more than an hour
TickTock 13:544b15b00c2d 354 //LPC_RTC->CIIR=0x01; // re-enable RTC interrupts
TickTock 9:8396b76e42fc 355 }
TickTock 10:663bff0a6144 356 wait(0.25); // We get >2K messages per second
TickTock 11:d97071bf877b 357 } while ((PB1==1)&&(CD==1)&&logOpen); // keep going until button or SDram removed
TickTock 9:8396b76e42fc 358
TickTock 11:d97071bf877b 359 if (PB1==0) {
TickTock 11:d97071bf877b 360 led1=0;
TickTock 11:d97071bf877b 361 led2=0;
TickTock 11:d97071bf877b 362 led3=0;
TickTock 11:d97071bf877b 363 led4=0;
TickTock 11:d97071bf877b 364 pc.printf("Log stopped\n\n");
TickTock 11:d97071bf877b 365 logOpen=false;
TickTock 11:d97071bf877b 366 wait(5); // wait 5 seconds to give time to remove SDRAM if desired
TickTock 11:d97071bf877b 367 }
TickTock 11:d97071bf877b 368 } else {
TickTock 11:d97071bf877b 369 pc.printf("\nNo SDRAM Inserted.\n\n");
TickTock 6:594d9717e609 370 logOpen=false;
TickTock 11:d97071bf877b 371 led1=!led1;
TickTock 11:d97071bf877b 372 led2=led1;
TickTock 11:d97071bf877b 373 led3=led1;
TickTock 11:d97071bf877b 374 led4=led1;
TickTock 11:d97071bf877b 375 wait(5);
TickTock 10:663bff0a6144 376 } //if (CD==1)
TickTock 9:8396b76e42fc 377 } //while (true)
TickTock 9:8396b76e42fc 378 }
TickTock 9:8396b76e42fc 379