Dual CANbus monitor and instrumentation cluster supporting ILI9341 display controller
Dependencies: SPI_TFTx2_ILI9341 TOUCH_TFTx2_ILI9341 TFT_fonts mbed
Fork of CANary by
main.cpp
- Committer:
- TickTock
- Date:
- 2013-03-23
- Revision:
- 36:dbd39c315258
- Parent:
- 35:5acbd8a64a89
- Child:
- 37:fea2c1d52c5f
File content as of revision 36:dbd39c315258:
// main.cpp //To Do: // * Log file playback (to enable testing of new passive display modes without having to drive around) // * USB device detect // * Ability to update binary from the thumb-drive (requires file timestamp) // * Cellpair histogram // * Audible friction brake feedback // * User-configurable watchpoint // * Immediately turn off when car is turned off and logging // * Better graphical DTE display with historic efficiency information considered and displayed // * Add 50% charge option // * Tire Pressure Sensor display // * CSV dump of key parameters on car on/off #include "mbed.h" #include "CAN.h" #include "beep.h" #include "MSCFileSystem.h" #include "PowerControl.h" #include "EthernetPowerControl.h" #include "utility.h" #include "displayModes.h" #include "GraphicsDisplay.h" #include "SPI_TFTx2.h" #include "TOUCH_TFTx2.h" LocalFileSystem local("local"); // to write to USB Flash Drives, or equivalent (SD card in Reader/Writer) MSCFileSystem fs("usb"); // to write to a USB Flash Drive time_t seconds ; Ticker autoPoll; Ticker playback; Timer timer; DigitalOut led1(LED1); DigitalOut led2(LED2); DigitalOut led3(LED3); DigitalOut led4(LED4); InterruptIn touchpad(p17); CAN can1(p9, p10); // CAN1 (EV) uses pins 9 and 10 (rx, tx) and pin 8 (rs) DigitalOut can1SleepMode(p8); // Use pin 8 to control the sleep mode of can2 CAN can2(p30, p29); // CAN2 (CAR) uses pins 30 and 29 (rx, tx) and pin 28 (rs) DigitalOut can2SleepMode(p28); // Use pin 28 to control the sleep mode of can1 AnalogIn mon12V(p15); TOUCH_TFTx2 tt(p16, p17, p19, p20, p11, p12, p13, p6, p7, p5, "TFT"); // x+,x-,y+,y-,mosi, miso, sclk, cs0, cs1, reset PwmOut dled(p23); Beep spkr(p21); bool logEn = false,logOpen = false; FILE *cfile; FILE *file; char fileName[35] = "" ; char writeBuffer[maxBufLen][13]; // buffer for USB write char indexLastMsg[0x800]={0}; // index table for last message CANMessage lastMsg[100]; // table to store last message of eachtype unsigned char battData[256]={0}; unsigned char msgChanged[100]; // inidcates which bytes changed char c; volatile int writePointer = 0; volatile int secsNoMsg = 0; volatile int secsNoTouch = 0; volatile bool canIdle; volatile bool userIdle; bool touched=false; //flag to read touchscreen char counter = 0; unsigned char dMode[2] = {dteScreen,brakeScreen}; //display mode unsigned char sMode = 0; // setup mode unsigned char lastDMode[2] = {0,0}; //last screen mode unsigned char dtMode = 6; char displayLog[20][40]; unsigned char displayLoc = 0; unsigned char indexOffset = 1; bool showCP = false; bool pollCP = false; bool repeatPoll = false; bool headlights = false; bool tick = false; float ledHi = 0.8; // Bright LED value (until config file read) float ledLo = 0.1; // Dim LED value (until config file read) unsigned short pollInt = 300; // polling interval=5 minutes (until config file read) bool accOn = false; // Accessories on float scale12V = 16.2; // R1:R2 ratio signed long kWh = 0; unsigned long miles = 0; float mpkWh = 0; float accV = 0; bool playbackEn = false; bool playbackOpen = false; float playbackInt = 1; //read one message every 64 ms bool step = false; char data[8]; int main() { int readPointer=0; char sTemp[40]; unsigned long secs; unsigned char i,j,display=0; point lastTouch; can1.monitor(true); // set to snoop mode can2.monitor(true); // set to snoop mode can1.frequency(500000); can2.frequency(500000); can1SleepMode = 1; // Turn on Monitor_only Mode can2SleepMode = 1; // Turn on Monitor_only Mode can1.attach(&recieve1); can2.attach(&recieve2); tt.set_orientation(1); tt.background(Black); tt.set_display(2); // select both displays tt.cls(); tt.claim(stdout); // send stdout to the TFT display touchpad.rise(&touch_ISR); tt.wfi(); // enable interrupt on touch dled = 0.8; // turn on display LED 80% timer.start() ; RTC_Init(); // start the RTC Interrupts that sync the timer struct tm t; // pointer to a static tm structure NVIC_SetPriority(TIMER3_IRQn, 1); //set ticker priority NVIC_SetPriority(CAN_IRQn, 2); //higher than can (so RTC sync works) seconds = time(NULL); t = *localtime(&seconds) ; // is it a date before 2012 ? if ((t.tm_year + 1900) < 2012 ) { // before 2013 so update year to make date entry easier t.tm_year = 2013 - 1900; // set the RTC set_time(mktime(&t)); seconds = time(NULL); } t = *localtime(&seconds) ; strftime(sTemp, 32, "%a %m/%d/%Y %X\n", &t); logMsg(sTemp); // Look for new binary on thumbdrive // Can't make this work right now since USB doesn't attach the right timestamp (so new binary isn't loaded) /*cfile = fopen("/usb/CANary.bin", "rb"); if (cfile!=NULL){ //found a new binary on the thumbdrive so copy it over sprintf(sTemp,"New binary found.\n"); logMsg(sTemp); file = fopen("/local/CANary.bin", "wb"); if (file==NULL){ //failed to open destination sprintf(sTemp,"Unable to open destination file.\n"); logMsg(sTemp); } else { tt.set_display(2); tt.foreground(White); tt.background(Black); tt.cls(); tt.locate(1,40); printf("%s\n","Copying binary - Do no remove power."); tt.locate(1,80); printf("CANary will reset when complete.\n"); wait(1); //Wait 1 sec for display DMA to finish before writing file while ( int size = fread( writeBuffer, sizeof(char), maxBufLen*13, cfile )){ fwrite( writeBuffer, sizeof(char), size, file ); led4=led3; led3=led2; led2=led1; led1=!led4; } fclose(cfile); fclose(file); remove("/usb/CANary.bin"); // delete original mbed_reset(); //restart } }*/ secsNoMsg = 0; secsNoTouch = 0; // Read config file readConfig(); touched=false; secsNoTouch=2; while (true) { if (!logOpen) { // Open new file if one is not already open if(logEn){ //logging enable seconds = time(NULL); t = *localtime(&seconds) ; strftime(fileName, 32, "/usb/%m%d%H%M.alc", &t); //mmddhhmm.alc //sprintf(sTemp,"Using file %s\n",fileName); //logMsg(sTemp); file = fopen(fileName, "ab"); if(file==NULL){ sprintf(sTemp,"\nUnable to open %s\n\n\n\n",fileName); logMsg(sTemp); logEn=false; spkr.beep(1000,0.25); } else { logOpen = true; readPointer=writePointer; sprintf(sTemp,"Starting Can Log %s\n",fileName); logMsg(sTemp); logTS(); spkr.beep(2000,0.25); } }//logging enabled } else { // if (logOpen) if (((writePointer+maxBufLen-readPointer)%maxBufLen)>(maxBufLen/16)||canIdle||!logEn) { // Dump buffer if > 1/16 full or canbus has stopped if (file == NULL) { logOpen = false; sprintf(sTemp,"Failed to append log file.\n\n"); spkr.beep(1000,0.25); logMsg(sTemp); logEn=false; } else { while (readPointer != writePointer) { for (j = 0; j<13; j++){ fprintf(file,"%c",writeBuffer[readPointer][j]); } if(++readPointer >= maxBufLen) readPointer=0; } led4 = !led4; } } // if > 1/16 full, canbus has stopped, or logging stopped if (!logEn) { fclose(file); logOpen=false; } } // if logOpen if (canIdle&&userIdle&&!playbackEn) { // canbus idle --> sleep to save power if (logOpen){ fclose(file); } // if (logOpen)*/ seconds = time(NULL); t = *localtime(&seconds) ; strftime(sTemp, 40, "Sleeping: %a %m/%d/%Y %X\n", &t); logMsg(sTemp); updateDisplay(0); //Added for turbo3 who has a display override and wants to see the sleep message before going to sleep updateDisplay(1); //LPC_RTC->CIIR=0x00; // block RTC interrupts led1=0; led2=0; led3=0; led4=0; dled=0; // turn off display secs = time(NULL); // seconds past 12:00:00 AM 1 Jan 1900 while (secsNoMsg>canTimeout && !touched) { //DeepPowerDown(); tt.wfi(); //enable touch interrupt //__wfi(); // freeze CPU and wait for interrupt (from canbus or touch) Sleep(); } secsNoTouch=0; canIdle=secsNoMsg>canTimeout; userIdle=secsNoTouch>userTimeout; dled=0.8; // turn on display LED seconds = time(NULL); t = *localtime(&seconds) ; strftime(sTemp, 40, "Waking: %a %m/%d/%Y %X\n", &t); logMsg(sTemp); if (time(NULL)>(secs+1800)) { logOpen = false; // Start new file if asleep for more than 30 minutes if (secsNoTouch>100) secsNoTouch = 100; // also mostly reset user Idle counter } else if (false){ // insert timestamp on each wake if logging enabled (disabled for now) file = fopen(fileName, "ab"); logTS(); } } // if idle if(touched){ // call touchscreen procedure if touch interrupt detected lastTouch = tt.get_touch(); lastTouch = tt.to_pixel(lastTouch); // convert to pixel pos if((lastTouch.x!=639)&&(lastTouch.x!=319)&&(lastTouch.y!=239)){ secsNoTouch=0; //debounce } //sprintf(sTemp,"%d,%d ",lastTouch.x,lastTouch.y); //logMsg(sTemp); touched = false; // clear interrupt flag } if (!userIdle) { if (secsNoTouch<2) {// Recently touched secsNoTouch +=2; // increment to prevent double touch if (lastTouch.x>320){ i=1; } else { i=0; } if (sMode==0) sMode = 1; //sprintf(sTemp,"button %d %d,%d %d\n",i,buttonX(lastTouch.x,3),buttonY(lastTouch.y,3),lastTouch.x); //logMsg(sTemp); switch (sMode) { case 0: // no select break; case 1: // select screen switch (buttonX(lastTouch.x,3)*10+buttonY(lastTouch.y,3)) { case 00: case 30: if (dMode[i]==monitorScreen||dMode[i]==changedScreen) { indexOffset=indexOffset>4?indexOffset-4:1; } else if (dMode[i]==config1Screen) { wait_ms(500); tt.calibrate(); } else if (dMode[i]==config2Screen) { // slower playbackInt *=2; if(playbackEn){ playback.detach(); playback.attach(&playbackISR,playbackInt); } } break; case 10: case 40: if (dMode[i]==changedScreen) { for(j=0;j<100;j++) msgChanged[j]=0; // clear changed data lastDMode[i]=99;//force refresh } else if (dMode[i]==cpScreen) { pollCP=true; } else if (dMode[i]==config1Screen) { mbed_reset(); } else if (dMode[i]==config2Screen) { // pause/unpause playbackEn=!playbackEn; if(playbackEn){ playback.attach(&playbackISR,playbackInt); }else{ playback.detach(); } } break; case 20: case 50: if (dMode[i]==monitorScreen||dMode[i]==changedScreen) { indexOffset=indexOffset<77?indexOffset+4:80; } else if (dMode[i]==config1Screen) { sprintf(sTemp,"Saving config file.\n"); logMsg(sTemp); saveConfig(); spkr.beep(2000,0.25); } else if (dMode[i]==config2Screen) { // faster if(playbackInt>.002){ playbackInt/=2; if(playbackEn){ playback.detach(); playback.attach(&playbackISR,playbackInt); } } } break; case 01: case 31: if (dMode[i]==config1Screen) { logEn = !logEn; if (!logEn) repeatPoll=false; } else if (dMode[i]==dateScreen){ dtMode=(dtMode<6)?dtMode+1:0; lastDMode[i]=99; } break; case 11: case 41: if (dMode[i]==config1Screen){ repeatPoll = !repeatPoll&&logEn; if (repeatPoll) { autoPoll.attach(&autoPollISR,pollInt); } else { autoPoll.detach(); } } else if (dMode[i]==config2Screen) { // Start/stop playback if(!playbackOpen){ if(!logOpen){ file = fopen("/usb/playback.alc", "rb"); if(file==NULL){ sprintf(sTemp,"Unable to open /usb/playback.alc\n"); logMsg(sTemp); spkr.beep(1000,0.25); } else { playbackOpen = true; sprintf(sTemp,"Starting playback\n"); logMsg(sTemp); spkr.beep(2000,0.25); can1.attach(&doNothing);// Stop recieving CAN data can2.attach(&doNothing); } } else { sprintf(sTemp,"Must stop logging first\n"); logMsg(sTemp); } } else { playback.detach(); fclose(file); playbackOpen=false; can1.attach(&recieve1);// Restore CAN data recieve can2.attach(&recieve2); lastDMode[i]=99; } playbackEn=false; } else if (dMode[i]==dateScreen){ upDate(dtMode,true); lastDMode[i]=99; } break; case 21: case 51: if (dMode[i]==dateScreen){ upDate(dtMode,false); lastDMode[i]=99; } break; case 02: case 32: dMode[i]=dMode[i]>0?dMode[i]-1:maxScreens; break; case 12: case 42: secsNoTouch = userTimeout; // immediately exit config mode break; case 22: case 52: dMode[i]=dMode[i]<maxScreens?dMode[i]+1:0; break; default: break; } break; case 2: // numpad break; case 3: break; default: break; } // case sMode } //recently touched } else { // userIdle if(sMode==1){ sMode=0; lastDMode[0]=99; lastDMode[1]=99; } } display=display<1?display+1:0; // toggle display updateDisplay(display); if(pollCP){ // We do this inside main loop instead of ticker so CAN RX will not be blocked sendCPreq(); // send cellpair data request. wait_ms(16); sendTreq(); //send temperature request wait_ms(16); showCP=true; pollCP=false; } if(tick){ // Executes once a second accV=mon12V*scale12V; accOn=(accV>5)?true:false; if(!accOn&&!logEn&&userIdle&&!playbackEn){ dled = 0; // turn off display if car off and logging disabled and no user activity }else if(!headlights){ dled = ledHi; }else{ dled = ledLo; } if(kWh>0){ mpkWh=miles/kWh; }else{ mpkWh=99; } miles=0; kWh=0; tick=false; } if(step){ // playback if(playbackOpen&&playbackEn){ //sprintf(sTemp,"step\n"); //logMsg(sTemp); for(i=0;i<200;i++){ if(!feof(file)){ //for (j = 0; j<5; j++){ fscanf(file,"%5c",&writeBuffer[0][0]); //} fscanf(file,"%8c",&data[0]); logCan(writeBuffer[0][0],CANMessage(0x7ff&((writeBuffer[0][4]<<8)+writeBuffer[0][3]), data, 8)); }else{ fclose(file); // restart file = fopen("/usb/playback.alc", "rb"); spkr.beep(2000,0.25); } } } step=false; } } //while (true) }