Dual CANbus monitor and instrumentation cluster supporting ILI9341 display controller
Dependencies: SPI_TFTx2_ILI9341 TOUCH_TFTx2_ILI9341 TFT_fonts mbed
Fork of CANary by
utility.cpp
- Committer:
- TickTock
- Date:
- 2013-03-08
- Revision:
- 20:3bf176d14b14
- Parent:
- 13:62e0f7f39ff5
- Child:
- 22:a43df3905863
File content as of revision 20:3bf176d14b14:
// utility.cpp #include "utility.h" void mbed_reset(); void RTC_IRQHandler() { timer.reset(); // zero ms at the-seconds-tic canIdle=(++secsNoMsg>canTimeout)?true:false; userIdle=(++secsNoTouch>userTimeout)?true:false; LPC_RTC->ILR |= (1<<0); // clear interrupt to prepare for next } extern "C" void RTC_Init (void) { LPC_RTC->ILR=0x00; // set up the RTC interrupts LPC_RTC->CIIR=0x01; // interrupts each second LPC_RTC->CCR = 0x01; // Clock enable //NVIC_SetPriority( RTC_IRQn, 10 ); NVIC_EnableIRQ( RTC_IRQn ); } void logMsg (char *msg) { strcpy(displayLog[displayLoc],msg); displayLoc=displayLoc>17?0:displayLoc+1; } void touch_ISR(){ LPC_GPIOINT->IO2IntClr = (LPC_GPIOINT->IO2IntStatR | LPC_GPIOINT->IO2IntStatF); secsNoTouch = 0; touched=true; } unsigned short getTimeStamp() { unsigned short msec = timer.read_ms() ; // read ms from the timer unsigned long secs = time(NULL); // seconds past 12:00:00 AM 1 Jan 1900 unsigned short isecs = secs%60 ; // modulo 60 for 0-59 seconds from RTC return ((isecs<<10)+msec) ; // return the two byte time stamp } void logCan (char mType, CANMessage canRXmsg) { char sTemp[40]; unsigned short ts = getTimeStamp(); unsigned long secs = time(NULL); // seconds past 12:00:00 AM 1 Jan 1900 static unsigned char ii = 0, lasti = 0; // indexindex unsigned char changed,i; static unsigned char bdi; if(logOpen){ if(canRXmsg.id>0) { writeBuffer[writePointer][0]=mType; writeBuffer[writePointer][1]=((secs%60)<<2)+((ts&0x300)>>8); writeBuffer[writePointer][2]=ts&0xff; writeBuffer[writePointer][3]=canRXmsg.id&0xff; writeBuffer[writePointer][4]=(canRXmsg.id>>8)+(canRXmsg.len<<4); for(i=5;i<13;i++){ writeBuffer[writePointer][i]=canRXmsg.data[i-5]; } if (++writePointer >= maxBufLen) { writePointer = 0; led3 = !led3; } } }//if logOpen if(indexLastMsg[canRXmsg.id]==0) { //Check if no entry ii=ii<99?ii+1:0; indexLastMsg[canRXmsg.id]=ii; //Create entry if first message } if(dMode[0]==changedScreen||dMode[1]==changedScreen){ changed=msgChanged[indexLastMsg[canRXmsg.id]]; for(i=0;i<8;i++){ if(lastMsg[indexLastMsg[canRXmsg.id]].data[i]!=canRXmsg.data[i]){ changed |= 1<<i; } } msgChanged[indexLastMsg[canRXmsg.id]]=changed; } lastMsg[indexLastMsg[canRXmsg.id]]=canRXmsg; //Store in table if(mType==1&&canRXmsg.id==0x7bb){ // is battery data? Need to store all responses if(canRXmsg.data[0]<0x20){ if(canRXmsg.data[3]==2){//cellpair data bdi=0; sprintf(sTemp,"Getting cell pair data\n"); logMsg(sTemp); }else if(canRXmsg.data[3]==4){//temperature data bdi=0x20; sprintf(sTemp,"Getting temperature data\n"); logMsg(sTemp); }else bdi=0; lasti=0; } i=canRXmsg.data[0]&0x0f; //lower nibble of D0 is index if(lasti>i){ //detect rolloever and offset index appropriately bdi=0x10; } lasti=i; //remember the msb to detect rollover next time around i+=bdi; i*=7; if(i<0xfa){ battData[i+0]=canRXmsg.data[1]; battData[i+1]=canRXmsg.data[2]; battData[i+2]=canRXmsg.data[3]; battData[i+3]=canRXmsg.data[4]; battData[i+4]=canRXmsg.data[5]; battData[i+5]=canRXmsg.data[6]; battData[i+6]=canRXmsg.data[7]; } }//if 0x7bb } void logTS () { CANMessage tsMsg; unsigned long secs = time(NULL); // seconds past 12:00:00 AM 1 Jan 1900 tsMsg.id=0xfff; tsMsg.len=0xf; tsMsg.data[0]=secs&0xff; tsMsg.data[1]=(secs>>8)&0xff; tsMsg.data[2]=(secs>>16)&0xff; tsMsg.data[3]=secs>>24; tsMsg.data[4]=0xff; tsMsg.data[5]=0xff; tsMsg.data[6]=0xff; tsMsg.data[7]=0xff; logCan(0,tsMsg); } void sendCPreq() { char i; char data[8] = {0x02, 0x21, 0x02, 0xff, 0xff, 0xff, 0xff, 0xff}; can1.monitor(false); // set to active mode can1SleepMode = 0; // enable TX can1.write(CANMessage(0x79b, data, 8)); data[0]=0x30; //change to request next line message data[1]=0x01; data[2]=0x00; for(i=0;i<27;i++){ wait_ms(16); //wait 16ms can1.write(CANMessage(0x79b, data, 8)); } can1SleepMode = 1; // disable TX can1.monitor(true); // set to snoop mode } void sendTreq() { char i; char data[8] = {0x02, 0x21, 0x04, 0xff, 0xff, 0xff, 0xff, 0xff}; can1.monitor(false); // set to active mode can1SleepMode = 0; // enable TX can1.write(CANMessage(0x79b, data, 8)); data[0]=0x30; //change to request next line message data[1]=0x01; data[2]=0x00; for(i=0;i<2;i++){ wait_ms(16); //wait 16ms can1.write(CANMessage(0x79b, data, 8)); } can1SleepMode = 1; // disable TX can1.monitor(true); // set to snoop mode } void tickerISR() { //This is the ticker ISR for auto-polling pollCP=true; //Set a flag to do in main loop instead of here } //since ticker blocks other interrupts void recieve1() { CANMessage msg1; secsNoMsg=0; // reset deadman switch can1.read(msg1); logCan(1, msg1); led1 = !led1; } void recieve2() { CANMessage msg2; secsNoMsg=0; // reset deadman switch can2.read(msg2); logCan(2, msg2); led2 = !led2; }