Tick Tock / Mbed 2 deprecated CANcan

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Dependencies:   SDHCFileSystem mbed

main.cpp@22:605c2f33b340, 2013-01-27 (annotated)

Committer:
TickTock
Date:
Sun Jan 27 20:14:11 2013 +0000
Revision:
22:605c2f33b340
Parent:
21:a45a999d6da3
Child:
23:7e6a9684f647
delete files older than 14 days; don't long msgId=0x000; reversed canbus 0,1 (EV&CAR was reversed in log); delay after SD write before shutting down to avoid corruption

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 8:6872945e8e91 84
TickTock 8:6872945e8e91 85 #define upLine "\033[1A"
TickTock 8:6872945e8e91 86 #define maxBufLen 2048
TickTock 8:6872945e8e91 87 #define canTimeout 5
TickTock 19:610a71236b6e 88 #define maxFileNum 30
TickTock 8:6872945e8e91 89
TickTock 1:dafb963c3c14 90 void Log (char *message);
TickTock 1:dafb963c3c14 91 void LogErr (char *message);
TickTock 6:594d9717e609 92 extern "C" void mbed_reset();
TickTock 1:dafb963c3c14 93
TickTock 1:dafb963c3c14 94 time_t seconds ;
TickTock 9:8396b76e42fc 95 DigitalIn CD(p17);
TickTock 9:8396b76e42fc 96 DigitalIn PB1( p20 );
TickTock 1:dafb963c3c14 97 SDFileSystem sd(p5, p6, p7, p8, "sd" ); // SDFileSystem::SDFileSystem(PinName mosi, PinName miso, PinName sclk, PinName cs, const char* name)
TickTock 1:dafb963c3c14 98 Timer timer;
TickTock 0:1596b8644523 99 DigitalOut led1(LED1);
TickTock 0:1596b8644523 100 DigitalOut led2(LED2);
TickTock 0:1596b8644523 101 DigitalOut led3(LED3);
TickTock 0:1596b8644523 102 DigitalOut led4(LED4);
TickTock 1:dafb963c3c14 103 CAN can1(p9, p10); // CAN1 uses pins 9 and 10 (rx, tx) and pin 27 (rs)
TickTock 2:55b2357f0cf9 104 DigitalOut can1_SleepMode(p27); // Use pin 27 to control the sleep mode of can1
TickTock 1:dafb963c3c14 105 CAN can2(p30, p29); // CAN2 uses pins 30 and 29 (rx, tx) and pin 28 (rs)
TickTock 2:55b2357f0cf9 106 DigitalOut can2_SleepMode(p28); // Use pin 28 to control the sleep mode of can2
TickTock 3:51134a275609 107 bool logOpen = false;
TickTock 21:a45a999d6da3 108 FILE *rfile;
TickTock 2:55b2357f0cf9 109 FILE *file;
TickTock 17:f0209f149b3e 110 char fileName[35] = "" ;
TickTock 4:fb373a391155 111 char writeBuffer[maxBufLen][13];
TickTock 13:544b15b00c2d 112 char c;
TickTock 11:d97071bf877b 113 volatile int writePointer = 0;
TickTock 22:605c2f33b340 114 volatile int secsIdle = 0;
TickTock 19:610a71236b6e 115 volatile bool canIdle = false;
TickTock 10:663bff0a6144 116 Serial pc(USBTX, USBRX);
TickTock 0:1596b8644523 117
TickTock 2:55b2357f0cf9 118 extern "C" void RTC_IRQHandler() {
TickTock 9:8396b76e42fc 119 timer.reset(); // zero ms at the-seconds-tic
TickTock 10:663bff0a6144 120 canIdle=(++secsIdle>canTimeout);
TickTock 8:6872945e8e91 121 LPC_RTC->ILR |= (1<<0); // clear interrupt to prepare for next
TickTock 2:55b2357f0cf9 122 }
TickTock 2:55b2357f0cf9 123
TickTock 2:55b2357f0cf9 124 extern "C" void RTC_Init (void) {
TickTock 2:55b2357f0cf9 125 LPC_RTC->ILR=0x00; // set up the RTC interrupts
TickTock 2:55b2357f0cf9 126 LPC_RTC->CIIR=0x01; // interrupts each second
TickTock 8:6872945e8e91 127 LPC_RTC->CCR = 0x01; // Clock enable
TickTock 9:8396b76e42fc 128 //NVIC_SetPriority( RTC_IRQn, 10 );
TickTock 2:55b2357f0cf9 129 NVIC_EnableIRQ( RTC_IRQn );
TickTock 2:55b2357f0cf9 130 }
TickTock 2:55b2357f0cf9 131
TickTock 2:55b2357f0cf9 132 unsigned short getTimeStamp() {
TickTock 2:55b2357f0cf9 133 int msec = timer.read_ms() ; // read ms from the timer
TickTock 2:55b2357f0cf9 134 unsigned long secs = time(NULL); // seconds past 12:00:00 AM 1 Jan 1900
TickTock 2:55b2357f0cf9 135 int isecs = secs%60 ; // modulo 60 for 0-59 seconds from RTC
TickTock 2:55b2357f0cf9 136 return ((isecs<<10)+msec) ; // return the two byte time stamp
TickTock 1:dafb963c3c14 137 }
TickTock 1:dafb963c3c14 138
TickTock 2:55b2357f0cf9 139 void readLog (){
TickTock 2:55b2357f0cf9 140 unsigned char c;
TickTock 2:55b2357f0cf9 141 int i=0;
TickTock 3:51134a275609 142 char lastMsgNum[]={0,0};
TickTock 3:51134a275609 143 char curMsgNum[]={0,0};
TickTock 3:51134a275609 144 char canNum=0;
TickTock 2:55b2357f0cf9 145 pc.printf("printing file\n");
TickTock 2:55b2357f0cf9 146 file = fopen(fileName, "r");
TickTock 2:55b2357f0cf9 147 if (file == NULL) {
TickTock 2:55b2357f0cf9 148 pc.printf("no file found\n");
TickTock 1:dafb963c3c14 149 }
TickTock 2:55b2357f0cf9 150 while (!feof(file)) {
TickTock 2:55b2357f0cf9 151 c=fgetc(file);
TickTock 2:55b2357f0cf9 152 pc.printf("%02x ",c);
TickTock 3:51134a275609 153 if (i==0){
TickTock 3:51134a275609 154 canNum=c;
TickTock 3:51134a275609 155 }else if (i==5){
TickTock 3:51134a275609 156 curMsgNum[canNum]=c;
TickTock 2:55b2357f0cf9 157 }
TickTock 2:55b2357f0cf9 158 if (++i>12) {
TickTock 3:51134a275609 159 if (curMsgNum[canNum]>(lastMsgNum[canNum]+1)) {
TickTock 2:55b2357f0cf9 160 pc.printf(" ***");
TickTock 2:55b2357f0cf9 161 }
TickTock 3:51134a275609 162 lastMsgNum[canNum]=curMsgNum[canNum];
TickTock 2:55b2357f0cf9 163 pc.printf("\n");
TickTock 2:55b2357f0cf9 164 i=0;
TickTock 2:55b2357f0cf9 165 }
TickTock 2:55b2357f0cf9 166 }
TickTock 10:663bff0a6144 167 pc.printf("\n\n");
TickTock 2:55b2357f0cf9 168 fclose(file);
TickTock 2:55b2357f0cf9 169 }
TickTock 1:dafb963c3c14 170
TickTock 2:55b2357f0cf9 171 void logCan (char mtype, CANMessage canRXmsg) {
TickTock 2:55b2357f0cf9 172 unsigned short ts = getTimeStamp();
TickTock 11:d97071bf877b 173 unsigned long secs = time(NULL); // seconds past 12:00:00 AM 1 Jan 1900
TickTock 22:605c2f33b340 174 if(canRXmsg.id>0) {
TickTock 22:605c2f33b340 175 writeBuffer[writePointer][0]=mtype;
TickTock 22:605c2f33b340 176 writeBuffer[writePointer][1]=((secs%60)<<2)+((ts&0x300)>>8);
TickTock 22:605c2f33b340 177 writeBuffer[writePointer][2]=ts&0xff;
TickTock 22:605c2f33b340 178 writeBuffer[writePointer][3]=canRXmsg.id&0xff;
TickTock 22:605c2f33b340 179 writeBuffer[writePointer][4]=(canRXmsg.id>>8)+(canRXmsg.len<<4);
TickTock 22:605c2f33b340 180 for (int i = 5; i<13; i++){
TickTock 22:605c2f33b340 181 writeBuffer[writePointer][i]=canRXmsg.data[i-5];
TickTock 22:605c2f33b340 182 }
TickTock 22:605c2f33b340 183 if (++writePointer >= maxBufLen) {
TickTock 22:605c2f33b340 184 writePointer = 0;
TickTock 22:605c2f33b340 185 led4 = !led4;
TickTock 22:605c2f33b340 186 }
TickTock 4:fb373a391155 187 }
TickTock 1:dafb963c3c14 188 }
TickTock 0:1596b8644523 189
TickTock 18:a4cf0547bfc2 190 void logTS () {
TickTock 18:a4cf0547bfc2 191 CANMessage tsMsg;
TickTock 18:a4cf0547bfc2 192 unsigned long secs = time(NULL); // seconds past 12:00:00 AM 1 Jan 1900
TickTock 18:a4cf0547bfc2 193 tsMsg.id=0xfff;
TickTock 18:a4cf0547bfc2 194 tsMsg.len=0xf;
TickTock 18:a4cf0547bfc2 195 tsMsg.data[0]=secs&0xff;
TickTock 18:a4cf0547bfc2 196 tsMsg.data[1]=(secs>>8)&0xff;
TickTock 18:a4cf0547bfc2 197 tsMsg.data[2]=(secs>>16)&0xff;
TickTock 18:a4cf0547bfc2 198 tsMsg.data[3]=secs>>24;
TickTock 18:a4cf0547bfc2 199 tsMsg.data[4]=0xff;
TickTock 18:a4cf0547bfc2 200 tsMsg.data[5]=0xff;
TickTock 18:a4cf0547bfc2 201 tsMsg.data[6]=0xff;
TickTock 18:a4cf0547bfc2 202 tsMsg.data[7]=0xff;
TickTock 18:a4cf0547bfc2 203 logCan(0,tsMsg);
TickTock 18:a4cf0547bfc2 204 }
TickTock 0:1596b8644523 205 void recieve1() {
TickTock 2:55b2357f0cf9 206 CANMessage msg1;
TickTock 9:8396b76e42fc 207 secsIdle=0; // reset deadman switch
TickTock 0:1596b8644523 208 can1.read(msg1);
TickTock 11:d97071bf877b 209 if(logOpen)
TickTock 22:605c2f33b340 210 logCan(2, msg1);
TickTock 11:d97071bf877b 211 led1 = !led1;
TickTock 0:1596b8644523 212 }
TickTock 2:55b2357f0cf9 213
TickTock 0:1596b8644523 214 void recieve2() {
TickTock 2:55b2357f0cf9 215 CANMessage msg2;
TickTock 9:8396b76e42fc 216 secsIdle=0; // reset deadman switch
TickTock 0:1596b8644523 217 can2.read(msg2);
TickTock 11:d97071bf877b 218 if(logOpen)
TickTock 22:605c2f33b340 219 logCan(1, msg2);
TickTock 11:d97071bf877b 220 led2 = !led2;
TickTock 0:1596b8644523 221 }
TickTock 0:1596b8644523 222
TickTock 0:1596b8644523 223 int main() {
TickTock 9:8396b76e42fc 224 int readPointer=0;
TickTock 21:a45a999d6da3 225 int fmon;
TickTock 21:a45a999d6da3 226 int fday;
TickTock 21:a45a999d6da3 227 int ftime;
TickTock 21:a45a999d6da3 228 char sTemp[35];
TickTock 11:d97071bf877b 229 unsigned long secs;
TickTock 22:605c2f33b340 230 bool bit = false;
TickTock 10:663bff0a6144 231 pc.baud(460800); // change serial interface to pc to 450800, 8N1
TickTock 7:281df0ba57d0 232 can1.frequency(500000);
TickTock 7:281df0ba57d0 233 can2.frequency(500000);
TickTock 10:663bff0a6144 234 can1_SleepMode = 1; // Monitor_only Mode
TickTock 10:663bff0a6144 235 can2_SleepMode = 1; // Monitor_only Mode
TickTock 0:1596b8644523 236 CD.mode(PullUp) ; //SDRAM Chip Detect
TickTock 2:55b2357f0cf9 237 PB1.mode(PullUp) ; //Pushbutton 1
TickTock 0:1596b8644523 238 can1.attach(&recieve1);
TickTock 0:1596b8644523 239 can2.attach(&recieve2);
TickTock 1:dafb963c3c14 240
TickTock 1:dafb963c3c14 241 timer.start() ;
TickTock 2:55b2357f0cf9 242 RTC_Init(); // start the RTC Interrupts that sync the timer
TickTock 12:7cd4e9303165 243
TickTock 12:7cd4e9303165 244 struct tm t; // pointer to a static tm structure
TickTock 12:7cd4e9303165 245
TickTock 12:7cd4e9303165 246 seconds = time(NULL);
TickTock 12:7cd4e9303165 247 t = *localtime(&seconds) ;
TickTock 14:ed5d2a503374 248 strftime(sTemp, 32, "%a %m/%d/%Y %X", &t);
TickTock 14:ed5d2a503374 249 pc.printf("\nCurrent time set to: %s\n", sTemp); // DAY MM/DD/YYYY HH:MM:SS
TickTock 14:ed5d2a503374 250 wait(1.1); // give time to sync
TickTock 14:ed5d2a503374 251
TickTock 14:ed5d2a503374 252 if (PB1==0) { //set time if pb pressed
TickTock 12:7cd4e9303165 253
TickTock 13:544b15b00c2d 254 pc.printf("\nEnter year (yyyy):");
TickTock 13:544b15b00c2d 255 pc.scanf("%s", &sTemp);
TickTock 13:544b15b00c2d 256 t.tm_year = atoi(sTemp);
TickTock 13:544b15b00c2d 257
TickTock 13:544b15b00c2d 258 pc.printf("\nEnter month (mm):");
TickTock 13:544b15b00c2d 259 pc.scanf("%2s", &sTemp);
TickTock 13:544b15b00c2d 260 t.tm_mon = atoi(sTemp);
TickTock 13:544b15b00c2d 261
TickTock 13:544b15b00c2d 262 pc.printf("\nEnter day (dd):");
TickTock 13:544b15b00c2d 263 pc.scanf("%2s", &sTemp);
TickTock 13:544b15b00c2d 264 t.tm_mday = atoi(sTemp);
TickTock 13:544b15b00c2d 265
TickTock 13:544b15b00c2d 266 pc.printf("\nEnter hour (hh):");
TickTock 13:544b15b00c2d 267 pc.scanf("%2s", &sTemp);
TickTock 13:544b15b00c2d 268 t.tm_hour = atoi(sTemp);
TickTock 13:544b15b00c2d 269
TickTock 13:544b15b00c2d 270 pc.printf("\nEnter minute (mm):");
TickTock 13:544b15b00c2d 271 pc.scanf("%2s", &sTemp);
TickTock 13:544b15b00c2d 272 t.tm_min = atoi(sTemp);
TickTock 13:544b15b00c2d 273
TickTock 13:544b15b00c2d 274 pc.printf("\nEnter seconds (ss):");
TickTock 13:544b15b00c2d 275 pc.scanf("%2s", &sTemp);
TickTock 13:544b15b00c2d 276 t.tm_sec = atoi(sTemp);
TickTock 12:7cd4e9303165 277
TickTock 12:7cd4e9303165 278 // adjust for tm structure required values
TickTock 12:7cd4e9303165 279 t.tm_year = t.tm_year - 1900;
TickTock 12:7cd4e9303165 280 t.tm_mon = t.tm_mon - 1;
TickTock 12:7cd4e9303165 281
TickTock 12:7cd4e9303165 282 // set the RTC
TickTock 12:7cd4e9303165 283 set_time(mktime(&t));
TickTock 12:7cd4e9303165 284 seconds = time(NULL);
TickTock 12:7cd4e9303165 285
TickTock 14:ed5d2a503374 286 pc.printf("\nRTC set to: " );
TickTock 12:7cd4e9303165 287 strftime(sTemp, 32, "%a %m/%d/%Y %X", localtime(&seconds));
TickTock 12:7cd4e9303165 288 pc.printf("%s\n", sTemp); // DAY MM/DD/YYYY HH:MM:SS
TickTock 12:7cd4e9303165 289 }
TickTock 21:a45a999d6da3 290
TickTock 6:594d9717e609 291 while (true) {
TickTock 6:594d9717e609 292 if(CD == 1) {
TickTock 11:d97071bf877b 293 if (!logOpen) { // Open new file if one is not already open
TickTock 22:605c2f33b340 294 seconds = time(NULL);
TickTock 21:a45a999d6da3 295 t = *localtime(&seconds) ;
TickTock 21:a45a999d6da3 296 strftime(fileName, 32, "/sd/%m%d%H%M.alc", &t); //mmddhhmm.alc
TickTock 21:a45a999d6da3 297
TickTock 15:3ff21ce810da 298 pc.printf("Using file %s\n",fileName);
TickTock 21:a45a999d6da3 299 file = fopen(fileName, "ab");
TickTock 15:3ff21ce810da 300
TickTock 11:d97071bf877b 301 if(file==NULL){
TickTock 11:d97071bf877b 302 pc.printf("\nUnable to open canlog\n\n\n\n");
TickTock 11:d97071bf877b 303 mbed_reset();
TickTock 11:d97071bf877b 304 } else {
TickTock 11:d97071bf877b 305 logOpen = true;
TickTock 11:d97071bf877b 306 readPointer=writePointer;
TickTock 15:3ff21ce810da 307 pc.printf("\nStarting Can Log %s\n",fileName);
TickTock 18:a4cf0547bfc2 308 logTS();
TickTock 21:a45a999d6da3 309 fclose(file);
TickTock 21:a45a999d6da3 310 file = fopen("/sd/loglog.txt", "a");
TickTock 21:a45a999d6da3 311 fprintf(file,"%s\r\n",fileName);
TickTock 11:d97071bf877b 312 fclose(file);
TickTock 11:d97071bf877b 313 }
TickTock 11:d97071bf877b 314 } // if (!logOpen)
TickTock 9:8396b76e42fc 315 do {
TickTock 10:663bff0a6144 316 if (((writePointer+maxBufLen-readPointer)%maxBufLen)>(maxBufLen/2)||canIdle||(PB1==0)) {
TickTock 10:663bff0a6144 317 // Dump buffer if > 1/2 full, canbus has stopped, or PB1 pressed
TickTock 9:8396b76e42fc 318 if (logOpen) {
TickTock 9:8396b76e42fc 319 file = fopen(fileName, "ab");
TickTock 9:8396b76e42fc 320 if (file == NULL) {
TickTock 9:8396b76e42fc 321 logOpen = false;
TickTock 9:8396b76e42fc 322 pc.printf("Failed to append log file.\n\n");
TickTock 9:8396b76e42fc 323 } else {
TickTock 9:8396b76e42fc 324 while (readPointer != writePointer) {
TickTock 9:8396b76e42fc 325 for (int j = 0; j<13; j++){
TickTock 9:8396b76e42fc 326 fprintf(file,"%c",writeBuffer[readPointer][j]);
TickTock 9:8396b76e42fc 327 }
TickTock 9:8396b76e42fc 328 if(++readPointer >= maxBufLen)
TickTock 9:8396b76e42fc 329 readPointer=0;
TickTock 9:8396b76e42fc 330 }
TickTock 9:8396b76e42fc 331 led3 = !led3;
TickTock 9:8396b76e42fc 332 fclose(file);
TickTock 9:8396b76e42fc 333 }
TickTock 10:663bff0a6144 334 } // if (logOpen)
TickTock 17:f0209f149b3e 335 } // if > 1/2 full, canbus has stopped, or PB1 pressed
TickTock 10:663bff0a6144 336 if (canIdle) { // canbus idle --> sleep to save power
TickTock 21:a45a999d6da3 337 // First take advantage of the idle time to clear some room
TickTock 22:605c2f33b340 338
TickTock 22:605c2f33b340 339 bit = false;
TickTock 21:a45a999d6da3 340 rfile = fopen("/sd/loglog.txt", "r");
TickTock 21:a45a999d6da3 341 file = fopen("/sd/loglog.new", "w");
TickTock 21:a45a999d6da3 342 while (!feof(rfile)) {
TickTock 21:a45a999d6da3 343 fscanf(rfile,"/sd/%2d%2d%4d.alc\r\n",&fmon,&fday,&ftime);
TickTock 22:605c2f33b340 344 //if ((fmon<t.tm_mon)&&(fday<=t.tm_mday)){ // Delete all files more than 1 month old
TickTock 22:605c2f33b340 345 if ((fmon < 12) || (t.tm_mon > 1)){
TickTock 22:605c2f33b340 346 fday = fday + fmon*31; //crude - february will store 3 extra days of data
TickTock 22:605c2f33b340 347 }
TickTock 22:605c2f33b340 348 if ((fday+14)<(t.tm_mday+t.tm_mon*31)){ // Delete all files more than ~14 days old
TickTock 22:605c2f33b340 349 bit=true;
TickTock 21:a45a999d6da3 350 sprintf(sTemp,"/sd/%02d%02d%04d.alc",fmon,fday,ftime);
TickTock 22:605c2f33b340 351 if ((remove(sTemp)==NULL)) {
TickTock 21:a45a999d6da3 352 pc.printf("Removed file %s\n",sTemp);
TickTock 22:605c2f33b340 353 }
TickTock 21:a45a999d6da3 354 }else{
TickTock 21:a45a999d6da3 355 fprintf(file,"/sd/%02d%02d%04d.alc\r\n",fmon,fday,ftime);
TickTock 21:a45a999d6da3 356 }
TickTock 21:a45a999d6da3 357 }
TickTock 21:a45a999d6da3 358 fclose (file);
TickTock 21:a45a999d6da3 359 fclose (rfile);
TickTock 22:605c2f33b340 360 if (bit) {
TickTock 22:605c2f33b340 361 remove ("/sd/loglog.txt");
TickTock 22:605c2f33b340 362 //rename not working so do it the hard way
TickTock 22:605c2f33b340 363 //rename ("/sd/loglog.new","/sd/loglog.txt");
TickTock 22:605c2f33b340 364 rfile = fopen("/sd/loglog.new", "r");
TickTock 22:605c2f33b340 365 file = fopen("/sd/loglog.txt", "w");
TickTock 22:605c2f33b340 366 while (!feof(rfile)) {
TickTock 22:605c2f33b340 367 fscanf(rfile,"%s\r\n",&sTemp);
TickTock 22:605c2f33b340 368 fprintf(file,"%s\r\n",sTemp);
TickTock 22:605c2f33b340 369 }
TickTock 22:605c2f33b340 370 fclose (file);
TickTock 22:605c2f33b340 371 fclose (rfile);
TickTock 21:a45a999d6da3 372 }
TickTock 22:605c2f33b340 373 remove ("/sd/loglog.new");
TickTock 22:605c2f33b340 374 wait(5); // wait a few seconds to ensure SDRAM is done
TickTock 21:a45a999d6da3 375
TickTock 17:f0209f149b3e 376 pc.printf("Putting uC to sleep.\n");
TickTock 13:544b15b00c2d 377 //LPC_RTC->CIIR=0x00; // block RTC interrupts
TickTock 10:663bff0a6144 378 led1=0;
TickTock 10:663bff0a6144 379 led2=0;
TickTock 10:663bff0a6144 380 led3=0;
TickTock 10:663bff0a6144 381 led4=0;
TickTock 11:d97071bf877b 382 secs = time(NULL); // seconds past 12:00:00 AM 1 Jan 1900
TickTock 22:605c2f33b340 383 while (secsIdle>canTimeout) {
TickTock 11:d97071bf877b 384 //DeepPowerDown();
TickTock 10:663bff0a6144 385 __wfi(); // freeze CPU and wait for interrupt (from canbus)
TickTock 22:605c2f33b340 386 }
TickTock 22:605c2f33b340 387 canIdle=false;
TickTock 22:605c2f33b340 388 pc.printf("Waking uC.\n");
TickTock 21:a45a999d6da3 389 if (time(NULL)>(secs+1800)) {
TickTock 21:a45a999d6da3 390 logOpen = false; // Start new file if asleep for more than 30 minutes
TickTock 18:a4cf0547bfc2 391 } else { // insert timestamp on each wake
TickTock 18:a4cf0547bfc2 392 logTS();
TickTock 18:a4cf0547bfc2 393 }
TickTock 13:544b15b00c2d 394 //LPC_RTC->CIIR=0x01; // re-enable RTC interrupts
TickTock 9:8396b76e42fc 395 }
TickTock 17:f0209f149b3e 396 wait(0.2); // We get >2K messages per second
TickTock 11:d97071bf877b 397 } while ((PB1==1)&&(CD==1)&&logOpen); // keep going until button or SDram removed
TickTock 9:8396b76e42fc 398
TickTock 11:d97071bf877b 399 if (PB1==0) {
TickTock 11:d97071bf877b 400 led1=0;
TickTock 11:d97071bf877b 401 led2=0;
TickTock 11:d97071bf877b 402 led3=0;
TickTock 11:d97071bf877b 403 led4=0;
TickTock 11:d97071bf877b 404 pc.printf("Log stopped\n\n");
TickTock 11:d97071bf877b 405 logOpen=false;
TickTock 11:d97071bf877b 406 wait(5); // wait 5 seconds to give time to remove SDRAM if desired
TickTock 17:f0209f149b3e 407 if (PB1==0)
TickTock 17:f0209f149b3e 408 readLog(); // dump file if PB still pressed
TickTock 11:d97071bf877b 409 }
TickTock 11:d97071bf877b 410 } else {
TickTock 11:d97071bf877b 411 pc.printf("\nNo SDRAM Inserted.\n\n");
TickTock 6:594d9717e609 412 logOpen=false;
TickTock 11:d97071bf877b 413 led1=!led1;
TickTock 11:d97071bf877b 414 led2=led1;
TickTock 11:d97071bf877b 415 led3=led1;
TickTock 11:d97071bf877b 416 led4=led1;
TickTock 11:d97071bf877b 417 wait(5);
TickTock 10:663bff0a6144 418 } //if (CD==1)
TickTock 9:8396b76e42fc 419 } //while (true)
TickTock 9:8396b76e42fc 420 }
TickTock 9:8396b76e42fc 421