File content as of revision 12:8e42d7ba8468:

// utility.cpp
#include "mbed.h"
#include "CAN.h"
#include "beep.h"
#include "MSCFileSystem.h"
#include "PowerControl.h"
#include "EthernetPowerControl.h"

#define upLine "\033[1A"
#define maxBufLen 768
#define canTimeout 500
#define userTimeout 10
#define btn31x1 12
#define btn31x2 101
#define btn32x1 115
#define btn32x2 204
#define btn33x1 218
#define btn33x2 307
#define btn11y1 180
#define btn11y2 229
#define maxScreens 7
#define offScreen 0
#define logScreen 1
#define dteScreen 2
#define brakeScreen 3
#define powerScreen 4
#define monitorScreen 5
#define changedScreen 6
#define cpScreen 7
LocalFileSystem local("local");

// to write to USB Flash Drives, or equivalent (SD card in Reader/Writer)
MSCFileSystem fs("fs"); // to write to a USB Flash Drive

time_t seconds ;
Beep spkr(p21);

Ticker ticker;
Timer timer;
DigitalOut led1(LED1);
DigitalOut led2(LED2);
DigitalOut led3(LED3);
DigitalOut led4(LED4);
PwmOut dled(p24);

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

bool logEn = true,logOpen = false;
FILE *rfile;
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, secsNoTouch = 0;
volatile bool canIdle = false, userIdle = false;
bool touched=0; //flag to read touchscreen
char counter = 0;
unsigned char dMode[2] = {7,2}; //display mode
unsigned char sMode = 0; // setup mode
unsigned char lastDMode[2] = {0,0}; //last screen mode
char displayLog[20][40];
unsigned char displayLoc = 0;
unsigned char indexOffset = 1;
bool showCP = false;
bool pollCP = false;

extern "C" {
    void mbed_reset();
    void RTC_IRQHandler() {
        timer.reset(); // zero ms at the-seconds-tic
        canIdle=(++secsNoMsg>canTimeout);
        userIdle=(++secsNoTouch>userTimeout);
        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;
    }
}

//LEAF OBD
//1:
//2:
//3:    AVCAN-L     White/Blue
//4:    VSS-Shield
//5:    VSS         Brown,White/Brown
//6:    CARCAN-H    Green
//7:
//8:    12V-SW      Orange,White/Orange
//9:
//10:
//11:   AVCAN-H     Blue
//12:   EVCAN-L     White/Grey
//13:   EVCAN-H     Grey
//14:   CARCAN-L    White/Green
//15:
//16:   12V-AON     Red/Blue,Blue/Red

//VP230
//1:D   
//2:GND 
//3:VCC 
//4:R   
//5:Vref
//6:CANL
//7:CANH
//8:RS

//LPC1768
//1:    VSS
//2:        NC:VIN  (4.5-9V supply)
//3:        NC:VB
//4:        NC:nR
//5:    SPI:CS0
//6:    SPI:CS1
//7:    SPI:Reset
//8:    CAN1:Sleep -->  8:CAN1:RS
//9:    CAN1:RX    -->  4:CAN1:R
//10:   CAN1:TX    -->  1:CAN1:D
//11:   SPI:MOSI
//12:   SPI:MISO
//13:   SPI:SCLK
//14:       NC:Ain
//15:   MON12V     -->  4K to 12V, 1K to VSS  (To be implemented)
//16:   TOUCH_X+
//17:   TOUCH_X-
//18:       NC:Aout
//19:   TOUCH_Y+
//20:   TOUCH_Y-
//21:   Spkr+
//22:   Spkr-           (optional complimentary output for more volume)
//23:       NC:pwm
//24:       LED
//25:       NC:pwm
//26:       NC:pwm
//27:       NC
//28:   CAN2:Sleep -->  8:CAN2:RS
//29:   CAN2:TX    -->  1:CAN2:D
//30:   CAN2:RX    -->  4:CAN2:R
//31:   USB_D+
//32:   USB_D-
//33:       NC:Eth_TD+
//34:       NC:Eth_TD-
//35:       NC:Eth_RD+
//36:       NC:Eth_RD-
//37:       NC:IF+
//38:       NC:IF-
//39:       NC:5Vout (only available when connected as USB device)
//40:   VCC3.3