Dual CANbus monitor and instrumentation cluster. Presently tuned for the Nissan Leaf EV.

Dependencies:   SPI_TFTx2_ILI9341 TFT_fonts TOUCH_TFTx2_ILI9341 mbed

Fork of CANary_corrupt by Tick Tock

After adding the LPC1768 platform, import as a program and do not select the "update to latest revision" box

User Guide

Eagle Schematic and Board design

/media/uploads/TickTock/canaryr6.zip

/media/uploads/TickTock/canary_sch.jpg

/media/uploads/TickTock/canaryr6brd.jpg

For LCD Rev 1.01:

/media/uploads/TickTock/lcdsch.jpg

For VCD Rev 2.00:

/media/uploads/TickTock/lcdr2.jpg

Parts List

qtyinstancepart #packagesupplierDescription
1BAT3Vhttp://www.ebay.com/itm/10x-CR2032-SMD-Battery-Holder-for-CR2032-Battery-/180938057979?pt=LH_DefaultDomain_0&hash=item2a20bfa8fbLithium 2032 coin battery holder
4C1-C4ECST1DC106R6032Tantalium capacitor 10uF
3FC1-FC3ZF1-20-01-T-WThttp://www.samtec.com/cable-systems/idc-ffc/ffc/zero-insertion.aspx20 conductor 1mm pitch flex cable connector (optional)
1FJ-20-R-08.00-4http://www.samtec.com/cable-systems/idc-ffc/ffc/zero-insertion.aspx8\" 20 conductor 1mm pitch flex connector, end reversed (optional)
2H1-H4(DON'T populate H1-H4 headers - solder mbed directly)
1H5http://www.ebay.com/itm/221186042943?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l26491x12 .1\" pitch header (optional)
1H62x6 .1\" pitch header (optional)
2IC1,IC2VP230LMDSOP8http://www.ebay.com/itm/130488665247?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649canbus transciever
1IC3LM1117-5VSOT2235V regulator
5JP*2 pin .1\" jumper header
1mbedLPC1768http://www.ebay.com/itm/200830573509?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649mbed uC
2Q1,Q22N2222SOT23General purpose NPN transistor
1R1R393M120639K resistor
1R2R103M120610K resistor
4R4-R6R102M12061K resistor
1R3R500M120650 Ohm resistor
2TR1-TR5ZJYS81R5-2PL51TG01http://www.digikey.com/product-detail/en/ZJYS81R5-2PL51T-G01/445-2223-1-ND/765232CM Choke
1Z11N5340BGC1702-15http://www.ebay.com/itm/150878122425?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l26496V, 5W Zener Diode
1Z1DC-DC conveterhttp://www.ebay.com/itm/251142727849?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l264912V-7V, 3W DC-DC converter
1X1USBhttp://www.ebay.com/itm/New-Vertical-USB-2-0-A-pcb-connector-socket-USB-A-Type-/300553895292?pt=LH_DefaultDomain_0&hash=item45fa687d7cvertical USB connector
2LCD0,LCD1TFThttp://www.mikroe.com/add-on-boards/display/tft-proto/320x240 LCD with touch screen
1E0Enclosurehttp://www.shapeways.com/model/1077799/canary.html?li=user-profile&materialId=63d printed enclosure

Assembly

1) LCD Displays

I found ribbon cable is a nice way to organize the wires to the displays. There are two versions of the display and each must be wired differently. The original project used HW REV. 1.01. For that version, you'll need 12 conductors and I connected them in the following order:

1LED+
2LED-
3RST
4SDI
5WR/SCLK
6CS
7X+
8X-
9Y+
10Y-
11VDD
12GND

If, instead, you have HW REV 2.0, you will need 13 conductors with the following order:

1LED+
2LED-
3RST
4SDI
5RS (SCLK)
6WR (DC)
7CS
8X+
9X-
10Y+
11Y-
12VDD
13GND

First I connected all the GND connections (2 GND & IM0, IM1, IM3 for REV1.01 or 2 GND, RD, & IM0 for REV2.00). Do not connect the bottom GND until you have the ribbon cable connected. After making all the ribbon cable connections (connecting the GND of the ribbon cable to the bottom GND pad), solder the GND bar from the previous step to the back of the bottom GND connection. Finally, make a connection from the back side 3.3V pin to IM2 for REV1.01 or to IM1,IM2,&IM3 for REV2.00. Take a break and repeat for the second display.

Examples of REV1.01 boards:

/media/uploads/TickTock/lcdtop.jpg /media/uploads/TickTock/lcdbot.jpg

Examples of REV2.00:

/media/uploads/TickTock/rev2front.jpg /media/uploads/TickTock/rev2back.jpg

Once the two displays are complete combine all wires except CS0, CS1, X+, X-, Y+, and Y-. Connect X- of the left display to X+ of the right. Similarly connect Y- of the left display to Y+ of the right. Insulate any exposed wires.

2) PCB

Refer to the schematics to place all the components on the board. If you plan to install into the CANary 3D enclosure, DO NOT install the battery holder or the socket for the mbed and, instead, connect two wires to the VB and GND pads nearby. You will have to install the battery holder against the back wall to avoid interfering with the right-hand display and the mbed will have to be directly soldered. I have not found a socket with a low enough profile to fit in the space provided (depth of enclosure is limited by the space behind the center console). Also, I recommend keeping as much lead as possible on the Zener diode (bending it as shown to clear the back wall). Although it is operating well within parameters, the Zener gets quite hot during extended operation and the leads help dissipate the heat and keep it away from the PCB and other components.Update: Several Zeners have failed resulting in damage to some users boards so I recommend using a DC-DC converter instead to bring the 12V down to 7V.

/media/uploads/TickTock/pcbtop.jpg /media/uploads/TickTock/pcbbot.jpg

Once the PCB is populated, solder the LCDs to the PCB. CS0 connects to the right display and CS1 connects to the left. /media/uploads/TickTock/brddis.jpg

Update: The Zener diodes tended to fail after a few months so I am recommending removing them and replacing with a DC-DC converter. This will run cooler and waste less energy, too. To install, remove the left display panel to gain access to the Zener. From there, the Zener can be removed and it's pads used to connect to the DC-DC converter. I recommend setting the output voltage on the bench before installing since the trim pot is tricky to reach once installed. Set it to 7V. The input can be connected to the left pad previously occupied by the zener and the output can connect to the right. GND(-) can be connected to the bottom right pad on the 2x6 header below the flex cable connector. Make sure the GND wire lies flat so it doesn't interfere with the connection of the flex cable. /media/uploads/TickTock/dcdcinst2.jpg

Once soldered in place, the DC-DC converter can easily be mounted to the back wall with double sided tape above the battery holder. /media/uploads/TickTock/dcdcinst3.jpg

3) Testing

1)First step is to buzz out all connections from the LCDs to the pins in the main board
2)Next check the touch screen connections. On the main board, place an Ohm meter across X+ and X-. You should read 700 Ohms. Repeat for Y+ and Y-. Then test the resistance from X+ to Y+. With nothing touching the screens, it should read >100K Ohms and <1K when touching either screen.
3)When all connections are checked, solder in the mbed. Download and install the touch2 program http://mbed.org/users/TickTock/code/touch2/ to test the basic operation of the mbed and touch screens.
tips:
Touch screen is sensitive - excess flux on X+,X-,Y+,Y- connection on mbed can result in flakey operation
If touch is not working, double-check the LCD0_CS and LCD1_CS are not swapped. LCD0_CS must connect to the CS of the LCD that has X- & Y- connected to the mbed. LCD1_CS must connect to the CS of the LCD that has X+ & Y+ connected to the mbed.
4)Once touch2 works, it is time to connect to the OBD connector. I highly recommend double checking all connections from the OBD to the PCB with the cable in place before connecting to the Leaf. Buzz out all the pins in the OBS to make sure none are shorting to each other, Check that the 12V goes to the Zener (and nothing else) and the switched 12V to the resistor divider (and nothing else). Test the ground connection properly connects to ground and nothing else.
5)Once you are confident there are no shorts or wrong connections from the OBD connector, take a deep breath and plug it into your leaf. Touch2 program should come up and function. Unplug and install the latest CANary firmware. If you have the REV2.00 LCD boards, you will need to edit the precompile.h file in the TOUCH_TFTx2_w9341 library and set USE_ILI9341 to 1. Test all features before installing into the enclosure (gids, cellpair, menu system, logging) since installing and removing from the enclosure is a PITA.

/media/uploads/TickTock/pcbdone.jpg /media/uploads/TickTock/functioning.jpg

4) Enclosure

The 3D printer leaves a lot of powder behind - I used a strong spray of water to get it out of all the cracks. The enclosure comes with a rather rough finish. I recommend convincing yourself you like it, then simply lightly sand then paint before assembly. Sanding is very difficult - the nylon is very nicely fused and doesn't want to sand. I tried sandblasting and that didn't work either. I had some limited success with filler and then sanding, but only on the outside - it is too difficult to sand the face. /media/uploads/TickTock/enclosure.jpg

5) Final Assembly

Make sure you are well rested with lots of patience before attempting assembly. It is a puzzle figuring out how to get both displays and the PCB in place. Enclosure was too expensive for me to keep iterating to optimize for assembly. I ended up snipping the thin display posts shorter and using various tools to push the displays into place. Also, some USB connectors are taller than others. If you have one of the taller ones, you will have to deflect the back wall a bit while inserting the PCB (being careful not to bend the housing) to get it to it's opening in the back wall. Do use a screw in the provided post to secure the PCB as USB insertion will otherwise dislodge it.

I added an additional safety line which wraps around the center post to prevent the enclosure from becoming a projectile in the event of an accident. /media/uploads/TickTock/safety.jpg Installed: /media/uploads/TickTock/installed.jpg

Revision:
7:17bf9ceaf0aa
Parent:
5:ebf6fa994b78
Child:
8:67eed72f3e10
--- a/main.cpp	Tue Feb 19 18:22:21 2013 +0000
+++ b/main.cpp	Fri Feb 22 23:24:07 2013 +0000
@@ -1,11 +1,11 @@
+#include "CANary.h"
 //To Do:
 // USB device detect
 // config file on local fs
 // user programmable message decode
 // brake trainer
-#include "CANary.h"
 // write and read the Mode Data
-LocalFileSystem local("local"); // test the local file system to write files
+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
@@ -13,7 +13,7 @@
 extern "C" void mbed_reset();
 
 time_t seconds ;
-Beep buzzer(p21);
+Beep spkr(p21);
 
 Ticker ticker;
 Timer timer;
@@ -24,31 +24,33 @@
 PwmOut dled(p24);
 
 InterruptIn touchpad(p17);
-
 CAN can1(p9, p10);      // CAN1 uses pins 9 and 10 (rx, tx) and pin 27 (rs)
-DigitalOut can1_SleepMode(p8);     // Use pin 8 to control the sleep mode of can1
+DigitalOut can1SleepMode(p8);     // Use pin 8 to control the sleep mode of can1
 CAN can2(p30, p29);     // CAN2 uses pins 30 and 29 (rx, tx) and pin 28 (rs)
-DigitalOut can2_SleepMode(p28);     // Use pin 28 to control the sleep mode of can2
-bool logOpen = false;
+DigitalOut can2SleepMode(p28);     // Use pin 28 to control the sleep mode of can2
+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[192];
+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;
-point lastTouch;
+bool getXY=0; //flag to read touchscreen
 char counter = 0;
-int dMode[2] = {4,2}; //display mode
-int sMode = 0; // setup mode
-int lastDMode[2]; //last screen mode
-int lastSMode = 0;
+unsigned char dMode[2] = {4,2}; //display mode
+unsigned char sMode = 0; // setup mode
+unsigned char lastDMode[2]; //last screen mode
+unsigned char lastSMode = 0;
 char displayLog[19][40];
-int displayLoc = 0;
-int indexOffset = 1;
+unsigned char displayLoc = 0;
+unsigned char indexOffset = 1;
+unsigned char bdi; //battery data index
 
 TOUCH_TFTx2 tt(p16, p17, p19, p20, p11, p12, p13, p6, p7, p5, "TFT"); // x+,x-,y+,y-,mosi, miso, sclk, cs0, cs1, reset
 
@@ -67,37 +69,76 @@
     NVIC_EnableIRQ( RTC_IRQn );
 }
 
+void touched(){
+    LPC_GPIOINT->IO2IntClr = (LPC_GPIOINT->IO2IntStatR | LPC_GPIOINT->IO2IntStatF);
+    secsNoTouch = 0;
+    getXY=true;
+}
+
 unsigned short getTimeStamp() {
-    int msec = timer.read_ms() ; // read ms from the timer
+    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
-    int isecs = secs%60 ; // modulo 60 for 0-59 seconds from RTC
+    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) {
     unsigned short ts = getTimeStamp();
     unsigned long secs = time(NULL); // seconds past 12:00:00 AM 1 Jan 1900
-    static char ii = 0; // indexindex
-    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 (int i = 5; i<13; i++){
-            writeBuffer[writePointer][i]=canRXmsg.data[i-5];
-        }
-        if (++writePointer >= maxBufLen) {
-            writePointer = 0;
-            led4 = !led4;
-        }
-        if(indexLastMsg[canRXmsg.id]==0) { //Check if no entry
-            indexLastMsg[canRXmsg.id]=++ii; //Create entry if first message
-            if(ii>99) {
-                ii=0;
+    static unsigned char ii = 0, lastMSB = 0; // indexindex
+    unsigned char changed,i;
+    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;
             }
         }
-        lastMsg[indexLastMsg[canRXmsg.id]]=canRXmsg; //Store in table
+    }//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]==changedMode||dMode[1]==changedMode){
+        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(canRXmsg.id==0x7bb){ // is battery data?  Need to store all responses
+        i=canRXmsg.data[0]&0x0f; //lower nibble of D0 is index
+        if(lastMSB>0&i<8){ //detect rolloever and offset index appropriately
+            bdi+=0x10;
+        }
+        if(canRXmsg.data[0]&0x10>0){ //clear lastMSB if new response.  bit4 of D0 set on first message of set
+            lastMSB=0;
+        } else {
+            lastMSB=i>>3; //remember the msb to detect rollover next time around
+        }
+        i+=bdi;
+        i*=7;
+        if(i<0xc0){
+            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 () {
@@ -116,26 +157,31 @@
     logCan(0,tsMsg);
 }
 
-void send1() {
-    static char counter = 0; // use for fake data
-
-    can1.write(CANMessage(0x350, &counter, 1));
-    counter++;
-    // test sending 3 quickly
-    //can1.write(CANMessage(0x351, &counter, 1));
-    //can1.write(CANMessage(0x352, &counter, 1));
-    printf("Sending message %d   \n",counter);
-
+void sendCPreq() {
+    char data[8] = {0x02, 0x21, 0x02, 0xff, 0xff, 0xff, 0xff, 0xff};
+    bdi = 0; //reset battery data table index
+    //can2.monitor(false); // set to active mode
+    can2SleepMode = 0; // enable TX
+    can2.write(CANMessage(0x79b, data, 8));
+    can2SleepMode = 1; // disable TX
+    data[0]=0x30; //change to request next line message
+    data[1]=0x01;
+    data[2]=0x00;
+    for(int i=0;i<29;i++){
+        wait_ms(16); //wait 16ms
+        can2SleepMode = 0; // enable TX
+        can2.write(CANMessage(0x79b, data, 8));
+        can2SleepMode = 1; // disable TX
+    }
+    //can2.monitor(true); // set to snoop mode
 }
 
-
 void recieve1() {
     CANMessage msg1;
     secsNoMsg=0; // reset deadman switch
     can1.read(msg1);
     //printf("Can1 rxd: %d\n", msg1.data[0]);
-    if(logOpen)
-        logCan(2, msg1);
+    logCan(2, msg1);
     led1 = !led1;
 }
 
@@ -144,8 +190,7 @@
     secsNoMsg=0; // reset deadman switch
     can2.read(msg2);
     //printf("Can2 rxd: %d\n", msg2.data[0]);
-    if(logOpen)
-        logCan(1, msg2);
+    logCan(1, msg2);
     led2 = !led2;
 }
 
@@ -154,16 +199,8 @@
     displayLoc=displayLoc>17?0:displayLoc+1;
 }
 
-void touched(){
-    LPC_GPIOINT->IO2IntClr = (LPC_GPIOINT->IO2IntStatR | LPC_GPIOINT->IO2IntStatF);
-    lastTouch = tt.get_touch();       
-    lastTouch = tt.to_pixel(lastTouch);          // convert to pixel pos
-    secsNoTouch = 0;
-}
-
 void printLast (bool force){
     CANMessage msg;
-    if(force) tt.cls();
     tt.locate(0,6);
     tt.foreground(Red);
     tt.background(Yellow);
@@ -175,8 +212,28 @@
     }
 }
 
+void printChanged (bool force){
+    CANMessage msg;
+    unsigned char i,j;
+    tt.locate(0,6);
+    tt.foreground(Red);
+    tt.background(Yellow);
+    if(force) tt.cls(); // Just clear screen if forced - always update display
+    tt.set_font((unsigned char*) Arial12x12_prop);  // select the font
+    i=0;
+    j=indexOffset;
+    do{
+        j=j<99?j+1:j;
+        if(msgChanged[j]>0){
+            msg = lastMsg[j];
+            printf("%03x : %02x %02x %02x %02x %02x %02x %02x %02x    \n",msg.id,msg.data[0],msg.data[1],msg.data[2],msg.data[3],msg.data[4],msg.data[5],msg.data[6],msg.data[7]);
+            i++;
+        }// if changed
+    }while(i<19&&j<99);
+}
+
 void printLog (bool force){
-    static int lastDisplayLoc = 0;
+    static unsigned char lastDisplayLoc = 0;
     if(force||displayLoc!=lastDisplayLoc){ //only update if changed
         tt.foreground(Amber);
         tt.background(Black);
@@ -192,8 +249,8 @@
 }
 
 void dte (bool force){
-    unsigned gids, SOC, packV;
-    static unsigned lgids=0, lSOC=0, lpackV=0;
+    unsigned short gids, SOC, packV;
+    static unsigned short lgids=0, lSOC=0, lpackV=0;
     CANMessage msg;
 
     msg = lastMsg[indexLastMsg[0x5bc]]; //Get gids
@@ -305,51 +362,68 @@
             printf("%d %d    \n",targetBraking,maxTarget);
         }
         if((lr!=r||lt!=t)&&!prdata){
-            tt.fillrect(200,239-t,300,238-r,Red);
-            tt.fillrect(200,239-r,300,239,Green);
+            if(r<lr)
+                tt.fillrect(200,239-lr,300,239-r,Red);
+            else
+                tt.fillrect(200,239-r,300,239,Green);
+            if(t<lt)
+                tt.fillrect(200,239-lt,300,239-t,Navy);
+            else
+                tt.fillrect(200,239-t,300,238-r,Red);
             lt=t;
             lr=r;
         }
     }
 }
 
-void updateDisplay(){
+void cpData(bool force){
+    tt.foreground(White);
+    tt.background(Maroon);
+    tt.set_font((unsigned char*) Arial12x12_prop);  // select the font
+    tt.cls();
+    tt.locate(0,6);
+    printf("cellpair data\n\n");
+    if(force) tt.cls(); // Just clear screen if forced - always update display
+    for(int i=0; i<16; i++){
+        printf("%02d-%02d : %04d %04d %04d %04d %04d %04d\n",i*6,i*6+5,(battData[i*12+0]<<8)+battData[i*12+1],(battData[i*12+2]<<8)+battData[i*12+3],(battData[i*12+4]<<8)+battData[i*12+5],(battData[i*12+6]<<8)+battData[i*12+7],(battData[i*12+8]<<8)+battData[i*12+9],(battData[i*12+10]<<8)+battData[i*12+11]);
+    }
+}
+
+void updateDisplay(char display){
     bool changed;
-    for (int i=0; i<2; i++){
-        changed = dMode[i]!=lastDMode[i]||(lastSMode>0&&sMode==0);
-        tt.set_display(i);
-        switch (dMode[i]) {
-            case logMode:
-                printLog(changed);
-                break;
-            case dteMode:
-                dte(changed);
-                break;
-            case brakeMode:
-                braking(changed,true);
-                break;
-            case powerMode:
-                braking(changed,false);
-                break;
-            case controlMode:
-                tt.background(Black);
-                if(dMode[i]!=lastDMode[i]||(lastSMode>0&&sMode==0)) tt.cls();
-                tt.fillcircle(100,100,15,Orange);
-                break;
-            case monitorMode:
-                printLast(changed);
-                break;
-            default:
-                tt.background(Black);
-                if(dMode[i]!=lastDMode[i]||(lastSMode>0&&sMode==0)) tt.cls();
-                break;
-        }
-        lastDMode[i]=dMode[i];
-    } // for (i=0; i<1; i++)
+    changed = dMode[display]!=lastDMode[display]||(lastSMode>0&&sMode==0);
+    tt.set_display(display);
+    switch (dMode[display]) {
+        case logMode:
+            printLog(changed);
+            break;
+        case dteMode:
+            dte(changed);
+            break;
+        case brakeMode:
+            braking(changed,true);
+            break;
+        case powerMode:
+            braking(changed,false);
+            break;
+        case monitorMode:
+            printLast(changed);
+            break;
+        case changedMode:
+            printChanged(changed);
+            break;
+        case cpMode:
+            cpData(changed);
+            break;
+        default:
+            tt.background(Black);
+            if(dMode[display]!=lastDMode[display]||(lastSMode>0&&sMode==0)) tt.cls();
+            break;
+    }
+    lastDMode[display]=dMode[display];
 
     switch (sMode) {
         case 1:
-            tt.set_display(2); // select both displays
             tt.foreground(Yellow);
             tt.background(DarkCyan);
             tt.set_font((unsigned char*) Arial12x12);
@@ -376,22 +450,27 @@
 
 int main() {
     int readPointer=0;
-    int fmon;
-    int fday;
-    int ftime;
     char sTemp[40];
     unsigned long secs;
-    bool bit = false;
-    int i,j;
-    
+    char i,j,display=0;
+    point lastTouch;    
+
+    //can1.monitor(true); // set to snoop mode
+    //can2.monitor(true); // set to snoop mode
+    //LPC_CAN1->MOD |= 1;          // Disble CAN controller
+    //LPC_CAN1->MOD |= (1 << 1);   // Put into listen only mode
+    //LPC_CAN1->MOD &= ~(1);       // Re-enable CAN controller
+    //LPC_CAN2->MOD |= 1;          // Disble CAN controller
+    //LPC_CAN2->MOD |= (1 << 1);   // Put into listen only mode
+    //LPC_CAN2->MOD &= ~(1);       // Re-enable CAN controller
     can1.frequency(500000);
     can2.frequency(500000);
-    //can1_SleepMode = 0;         // Enable TX
-    //can2_SleepMode = 0;         // Enable TX
-    can1_SleepMode = 1;         // Turn on Monitor_only Mode
-    can2_SleepMode = 1;         // Turn on Monitor_only Mode
+    //can1SleepMode = 0;         // Enable TX
+    //can2SleepMode = 0;         // Enable TX
+    can1SleepMode = 1;         // Turn on Monitor_only Mode
+    can2SleepMode = 1;         // Turn on Monitor_only Mode
     //ticker.attach(&send1, 0.5);
-    ticker.attach(&updateDisplay, 0.5); // Display messages
+    //ticker.attach(&updateDisplay, 0.5); // Display messages
     can1.attach(&recieve1);
     can2.attach(&recieve2);
     
@@ -405,11 +484,12 @@
     tt.claim(stdout);        // send stdout to the TFT display
     touchpad.rise(&touched);
     tt.wfi();               // enable interrupt on touch
-    dled = 1; // turn on display LED 80%
+    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) ;
     strftime(sTemp, 32, "%a %m/%d/%Y %X", &t);
@@ -443,96 +523,53 @@
     }
     while (true) {
         if (!logOpen) { // Open new file if one is not already open
-            seconds = time(NULL);
-            t = *localtime(&seconds) ;
-            strftime(fileName, 32, "/fs/%m%d%H%M.alc", &t); //mmddhhmm.alc
-
-            tt.set_display(0);     // select left display
-            tt.locate(0,0);
-            tt.foreground(Cyan);    // set chars to Cyan
-            //printf("Using file %s\n",fileName);
-            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);
-            } else {
-                logOpen = true;
-                readPointer=writePointer;
-                sprintf(sTemp,"Starting Can Log %s\n",fileName);
+            if(logEn){ //logging enable
+                seconds = time(NULL);
+                t = *localtime(&seconds) ;
+                strftime(fileName, 32, "/fs/%m%d%H%M.alc", &t); //mmddhhmm.alc
+                sprintf(sTemp,"Using file %s\n",fileName);
                 logMsg(sTemp);
-                logTS();
-                fclose(file);
-                file = fopen("/fs/loglog.txt", "a");
-                fprintf(file,"%s\r\n",fileName);
-                fclose(file);
-            }
+                file = fopen(fileName, "ab");
+                
+                if(file==NULL){
+                    sprintf(sTemp,"\nUnable to open %s\n\n\n\n",fileName);
+                    logMsg(sTemp);
+                    logEn=false;
+                    spkr.beep(1000,0.2);
+                } else {
+                    logOpen = true;
+                    readPointer=writePointer;
+                    sprintf(sTemp,"Starting Can Log %s\n",fileName);
+                    logMsg(sTemp);
+                    logTS();
+                    spkr.beep(2000,0.2);
+                }
+            }//logging enabled
         } else { // if (!logOpen)
-            if (((writePointer+maxBufLen-readPointer)%maxBufLen)>(maxBufLen/2)||canIdle) {
-                // Dump buffer if > 1/2 full, canbus has stopped, or PB1 pressed
-                if (logOpen) {
-                    file = fopen(fileName, "ab");
-                    if (file == NULL) {
-                        logOpen = false;
-                        sprintf(sTemp,"Failed to append log file.\n\n");
-                        logMsg(sTemp);
-                    } else {
-                        while (readPointer != writePointer) {
-                            for (j = 0; j<13; j++){
-                                fprintf(file,"%c",writeBuffer[readPointer][j]);
-                            }
-                            if(++readPointer >= maxBufLen)
-                                readPointer=0;
+            if (((writePointer+maxBufLen-readPointer)%maxBufLen)>(maxBufLen/16)||canIdle) {
+                // 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(1000,0.2);
+                    logMsg(sTemp);
+                    logEn=false;
+                } else {
+                    while (readPointer != writePointer) {
+                        for (j = 0; j<13; j++){
+                            fprintf(file,"%c",writeBuffer[readPointer][j]);
                         }
-                        led3 = !led3;
-                        fclose(file);
+                        if(++readPointer >= maxBufLen)
+                            readPointer=0;
                     }
-                } // if (logOpen)
-            } // if > 1/2 full, canbus has stopped, or PB1 pressed
+                    led4 = !led4;
+                }
+            } // if > 1/16 full, canbus has stopped, or PB1 pressed
         } // if logOpen
         if (canIdle&&userIdle) { // canbus idle --> sleep to save power
             if (logOpen){
-                // First take advantage of the idle time to clear some room
-                bit = false;
-                rfile = fopen("/fs/loglog.txt", "r");
-                file = fopen("/fs/loglog.new", "w");
-                while (!feof(rfile)) {
-                    fscanf(rfile,"/fs/%2d%2d%4d.alc\r\n",&fmon,&fday,&ftime);
-                    //if ((fmon<t.tm_mon)&&(fday<=t.tm_mday)){ // Delete all files more than 1 month old
-                    if ((fmon < 12) || (t.tm_mon > 1)){
-                        fday = fday + fmon*31; //crude - february will store 3 extra days of data
-                    }
-                    if ((fday+14)<(t.tm_mday+t.tm_mon*31)){ // Delete all files more than ~14 days old
-                        bit=true;
-                        sprintf(sTemp,"/fs/%02d%02d%04d.alc",fmon,fday,ftime);
-                        if ((remove(sTemp)==NULL)) {
-                            sprintf(sTemp,"Removed file %s\n",sTemp);
-                            logMsg(sTemp);
-                        }
-                    }else{
-                        fprintf(file,"/fs/%02d%02d%04d.alc\r\n",fmon,fday,ftime);
-                    }
-                }
-                fclose (file);
-                fclose (rfile);
-                if (bit) {
-                    remove ("/fs/loglog.txt");
-                    //rename not working so do it the hard way
-                    //rename ("/fs/loglog.new","/fs/loglog.txt");
-                    rfile = fopen("/fs/loglog.new", "r");
-                    file = fopen("/fs/loglog.txt", "w");
-                    while (!feof(rfile)) {
-                        fscanf(rfile,"%s\r\n",&sTemp);
-                        fprintf(file,"%s\r\n",sTemp);
-                    }
-                    fclose (file);
-                    fclose (rfile);
-                }
-                remove ("/fs/loglog.new");                    
-                wait(5); // wait a few seconds to ensure fsRAM is done
-            } // if (logOpen)
+                fclose(file);
+            } // if (logOpen)*/
             sprintf(sTemp,"Putting uC to sleep.\n");
             logMsg(sTemp);
             //LPC_RTC->CIIR=0x00; // block RTC interrupts
@@ -545,24 +582,29 @@
             while (secsNoMsg>canTimeout && secsNoTouch>userTimeout) {
                 //DeepPowerDown();
                 tt.wfi(); //enable touchpad input
-                //__wfi(); // freeze CPU and wait for interrupt (from canbus or touch)
-                Sleep();
+                __wfi(); // freeze CPU and wait for interrupt (from canbus or touch)
+                //Sleep();
                 //DeepPowerDown();
             }
             canIdle=secsNoMsg>canTimeout;
             userIdle=userIdle>userTimeout;
-            dled=1; // turn on display LED
+            dled=0.8; // turn on display LED
             sprintf(sTemp,"Waking uC.\n");
             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 { // insert timestamp on each wake
+            } else if (false){ // insert timestamp on each wake if logging enabled (disabled for now)
+                file = fopen(fileName, "ab");
                 logTS();
             }
-            //LPC_RTC->CIIR=0x01; // re-enable RTC interrupts
         } // if idle
         
+        if(getXY){
+            lastTouch = tt.get_touch();       
+            lastTouch = tt.to_pixel(lastTouch);          // convert to pixel pos
+            getXY = false; // clear interrupt flag
+        }
         if (!userIdle) {
             if (secsNoTouch<2) {// Recently touched
                 secsNoTouch +=2; // increment to prevent double touch
@@ -572,7 +614,7 @@
                 } else {
                     i=0;
                 }
-                if (lastTouch.y>btn11y1 && lastTouch.y<btn11y2){
+                if (lastTouch.y>btn11y1 && lastTouch.y<btn11y2) {
                     if(sMode==1){
                         if (lastTouch.x>btn31x1 && lastTouch.x<btn31x2) {
                             dMode[i]=dMode[i]>0?dMode[i]-1:maxModes;
@@ -583,19 +625,32 @@
                         }
                     } else sMode=1;
                 } else {
-                    if (dMode[i]==monitorMode) {
-                        if (lastTouch.x>btn31x1 && lastTouch.x<btn31x2)
+                    if (dMode[i]==monitorMode||dMode[i]==changedMode) {
+                        if (lastTouch.x>btn31x1 && lastTouch.x<btn31x2) {
                             indexOffset=indexOffset>4?indexOffset-4:1;
-                        else if (lastTouch.x>btn33x1 && lastTouch.x<btn33x2)
+                        } else if (lastTouch.x>btn32x1 && lastTouch.x<btn32x2) {
+                            for(j=0;j<100;j++) msgChanged[j]=0; // clear changed data
+                            lastDMode[i]=99;//force refresh
+                        } else if (lastTouch.x>btn33x1 && lastTouch.x<btn33x2) {
                             indexOffset=indexOffset<77?indexOffset+4:80;
+                        }
+                    } else if (dMode[i]==cpMode) {
+                        if (lastTouch.x>btn32x1 && lastTouch.x<btn32x2)
+                            sendCPreq(); // send CP data request.
+                            wait(0.1);
+                            fclose(file); // close and reopen file to force buffer empty
+                            wait(0.1);
+                            file = fopen(fileName, "ab");
+
                     }
                 }
             }
-            secsNoMsg = 0;
+            //secsNoMsg = 0;
         } else { // userIdle
             sMode=0;
         }
-        
-        wait(0.1); // We get >2K messages per second
+        display=display<1?display+1:0; // toggle display
+        updateDisplay(display);
+        //wait(0.1); // We get >2K messages per second
     } //while (true)
 }
\ No newline at end of file