.

Dependencies:   SDHCFileSystem mbed

Files at this revision

API Documentation at this revision

Comitter:
TickTock
Date:
Thu Nov 29 12:18:37 2012 +0000
Parent:
0:1596b8644523
Child:
2:55b2357f0cf9
Commit message:
initial working version;

Changed in this revision

SDFileSystem.cpp Show diff for this revision Revisions of this file
SDFileSystem.h Show diff for this revision Revisions of this file
SDHCFileSystem.lib Show annotated file Show diff for this revision Revisions of this file
log.h Show diff for this revision Revisions of this file
main.cpp Show annotated file Show diff for this revision Revisions of this file
--- a/SDFileSystem.cpp	Mon Nov 19 04:44:11 2012 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,441 +0,0 @@
-/* mbed Microcontroller Library - SDFileSystem
- * Copyright (c) 2008-2009, sford
- */
- 
-// VERY DRAFT CODE! Needs serious rework/refactoring 
- 
-/* Introduction
- * ------------
- * SD and MMC cards support a number of interfaces, but common to them all
- * is one based on SPI. This is the one I'm implmenting because it means
- * it is much more portable even though not so performant, and we already 
- * have the mbed SPI Interface!
- *
- * The main reference I'm using is Chapter 7, "SPI Mode" of: 
- *  http://www.sdcard.org/developers/tech/sdcard/pls/Simplified_Physical_Layer_Spec.pdf
- *
- * SPI Startup
- * -----------
- * The SD card powers up in SD mode. The SPI interface mode is selected by
- * asserting CS low and sending the reset command (CMD0). The card will 
- * respond with a (R1) response.
- *
- * CMD8 is optionally sent to determine the voltage range supported, and 
- * indirectly determine whether it is a version 1.x SD/non-SD card or 
- * version 2.x. I'll just ignore this for now.
- *
- * ACMD41 is repeatedly issued to initialise the card, until "in idle"
- * (bit 0) of the R1 response goes to '0', indicating it is initialised.
- *
- * You should also indicate whether the host supports High Capicity cards,
- * and check whether the card is high capacity - i'll also ignore this
- *
- * SPI Protocol
- * ------------
- * The SD SPI protocol is based on transactions made up of 8-bit words, with
- * the host starting every bus transaction by asserting the CS signal low. The
- * card always responds to commands, data blocks and errors.
- * 
- * The protocol supports a CRC, but by default it is off (except for the 
- * first reset CMD0, where the CRC can just be pre-calculated, and CMD8)
- * I'll leave the CRC off I think! 
- * 
- * Standard capacity cards have variable data block sizes, whereas High 
- * Capacity cards fix the size of data block to 512 bytes. I'll therefore
- * just always use the Standard Capacity cards with a block size of 512 bytes.
- * This is set with CMD16.
- *
- * You can read and write single blocks (CMD17, CMD25) or multiple blocks 
- * (CMD18, CMD25). For simplicity, I'll just use single block accesses. When
- * the card gets a read command, it responds with a response token, and then 
- * a data token or an error.
- * 
- * SPI Command Format
- * ------------------
- * Commands are 6-bytes long, containing the command, 32-bit argument, and CRC.
- *
- * +---------------+------------+------------+-----------+----------+--------------+
- * | 01 | cmd[5:0] | arg[31:24] | arg[23:16] | arg[15:8] | arg[7:0] | crc[6:0] | 1 |
- * +---------------+------------+------------+-----------+----------+--------------+
- *
- * As I'm not using CRC, I can fix that byte to what is needed for CMD0 (0x95)
- *
- * All Application Specific commands shall be preceded with APP_CMD (CMD55).
- *
- * SPI Response Format
- * -------------------
- * The main response format (R1) is a status byte (normally zero). Key flags:
- *  idle - 1 if the card is in an idle state/initialising 
- *  cmd  - 1 if an illegal command code was detected
- *
- *    +-------------------------------------------------+
- * R1 | 0 | arg | addr | seq | crc | cmd | erase | idle |
- *    +-------------------------------------------------+
- *
- * R1b is the same, except it is followed by a busy signal (zeros) until
- * the first non-zero byte when it is ready again.
- *
- * Data Response Token
- * -------------------
- * Every data block written to the card is acknowledged by a byte 
- * response token
- *
- * +----------------------+
- * | xxx | 0 | status | 1 |
- * +----------------------+
- *              010 - OK!
- *              101 - CRC Error
- *              110 - Write Error
- *
- * Single Block Read and Write
- * ---------------------------
- *
- * Block transfers have a byte header, followed by the data, followed
- * by a 16-bit CRC. In our case, the data will always be 512 bytes.
- *  
- * +------+---------+---------+- -  - -+---------+-----------+----------+
- * | 0xFE | data[0] | data[1] |        | data[n] | crc[15:8] | crc[7:0] | 
- * +------+---------+---------+- -  - -+---------+-----------+----------+
- */
- 
-#include "SDFileSystem.h"
-
-#define SD_COMMAND_TIMEOUT 5000
-
-SDFileSystem::SDFileSystem(PinName mosi, PinName miso, PinName sclk, PinName cs, const char* name) :
-  FATFileSystem(name), _spi(mosi, miso, sclk), _cs(cs) {
-      _cs = 1; 
-}
-
-#define R1_IDLE_STATE           (1 << 0)
-#define R1_ERASE_RESET          (1 << 1)
-#define R1_ILLEGAL_COMMAND      (1 << 2)
-#define R1_COM_CRC_ERROR        (1 << 3)
-#define R1_ERASE_SEQUENCE_ERROR (1 << 4)
-#define R1_ADDRESS_ERROR        (1 << 5)
-#define R1_PARAMETER_ERROR      (1 << 6)
-
-// Types
-//  - v1.x Standard Capacity
-//  - v2.x Standard Capacity
-//  - v2.x High Capacity
-//  - Not recognised as an SD Card
-
-#define SDCARD_FAIL 0
-#define SDCARD_V1   1
-#define SDCARD_V2   2
-#define SDCARD_V2HC 3
-
-int SDFileSystem::initialise_card() {
-    // Set to 100kHz for initialisation, and clock card with cs = 1
-    _spi.frequency(100000); 
-    _cs = 1;
-    for(int i=0; i<16; i++) {   
-        _spi.write(0xFF);
-    }
-
-    // send CMD0, should return with all zeros except IDLE STATE set (bit 0)
-    if(_cmd(0, 0) != R1_IDLE_STATE) { 
-        fprintf(stderr, "No disk, or could not put SD card in to SPI idle state\n");
-        return SDCARD_FAIL;
-    }
-
-    // send CMD8 to determine whther it is ver 2.x
-    int r = _cmd8();
-    if(r == R1_IDLE_STATE) {
-        return initialise_card_v2();
-    } else if(r == (R1_IDLE_STATE | R1_ILLEGAL_COMMAND)) {
-        return initialise_card_v1();
-    } else {
-        fprintf(stderr, "Not in idle state after sending CMD8 (not an SD card?)\n");
-        return SDCARD_FAIL;
-    }
-}
-
-int SDFileSystem::initialise_card_v1() {
-    for(int i=0; i<SD_COMMAND_TIMEOUT; i++) {
-        _cmd(55, 0); 
-        if(_cmd(41, 0) == 0) { 
-            return SDCARD_V1;
-        }
-    }
-
-    fprintf(stderr, "Timeout waiting for v1.x card\n");
-    return SDCARD_FAIL;
-}
-
-int SDFileSystem::initialise_card_v2() {
-    
-    for(int i=0; i<SD_COMMAND_TIMEOUT; i++) {
-        _cmd(55, 0); 
-        if(_cmd(41, 0) == 0) { 
-            _cmd58();
-            return SDCARD_V2;
-        }
-    }
-
-    fprintf(stderr, "Timeout waiting for v2.x card\n");
-    return SDCARD_FAIL;
-}
-
-int SDFileSystem::disk_initialize() {
-
-    int i = initialise_card();
-//    printf("init card = %d\n", i);
-//    printf("OK\n");
-
-    _sectors = _sd_sectors();
-
-    // Set block length to 512 (CMD16)
-    if(_cmd(16, 512) != 0) {
-        fprintf(stderr, "Set 512-byte block timed out\n");
-        return 1;
-    }
-        
-    _spi.frequency(1000000); // Set to 1MHz for data transfer
-    return 0;
-}
-
-int SDFileSystem::disk_write(const char *buffer, int block_number) {
-    // set write address for single block (CMD24)
-    if(_cmd(24, block_number * 512) != 0) {
-        return 1;
-    }
-
-    // send the data block
-    _write(buffer, 512);    
-    return 0;    
-}
-
-int SDFileSystem::disk_read(char *buffer, int block_number) {        
-    // set read address for single block (CMD17)
-    if(_cmd(17, block_number * 512) != 0) {
-        return 1;
-    }
-    
-    // receive the data
-    _read(buffer, 512);
-    return 0;
-}
-
-int SDFileSystem::disk_status() { return 0; }
-int SDFileSystem::disk_sync() { return 0; }
-int SDFileSystem::disk_sectors() { return _sectors; }
-
-// PRIVATE FUNCTIONS
-
-int SDFileSystem::_cmd(int cmd, int arg) {
-    _cs = 0; 
-
-    // send a command
-    _spi.write(0x40 | cmd);
-    _spi.write(arg >> 24);
-    _spi.write(arg >> 16);
-    _spi.write(arg >> 8);
-    _spi.write(arg >> 0);
-    _spi.write(0x95);
-
-    // wait for the repsonse (response[7] == 0)
-    for(int i=0; i<SD_COMMAND_TIMEOUT; i++) {
-        int response = _spi.write(0xFF);
-        if(!(response & 0x80)) {
-            _cs = 1;
-            _spi.write(0xFF);
-            return response;
-        }
-    }
-    _cs = 1;
-    _spi.write(0xFF);
-    return -1; // timeout
-}
-int SDFileSystem::_cmdx(int cmd, int arg) {
-    _cs = 0; 
-
-    // send a command
-    _spi.write(0x40 | cmd);
-    _spi.write(arg >> 24);
-    _spi.write(arg >> 16);
-    _spi.write(arg >> 8);
-    _spi.write(arg >> 0);
-    _spi.write(0x95);
-
-    // wait for the repsonse (response[7] == 0)
-    for(int i=0; i<SD_COMMAND_TIMEOUT; i++) {
-        int response = _spi.write(0xFF);
-        if(!(response & 0x80)) {
-            return response;
-        }
-    }
-    _cs = 1;
-    _spi.write(0xFF);
-    return -1; // timeout
-}
-
-
-int SDFileSystem::_cmd58() {
-    _cs = 0; 
-    int arg = 0;
-    
-    // send a command
-    _spi.write(0x40 | 58);
-    _spi.write(arg >> 24);
-    _spi.write(arg >> 16);
-    _spi.write(arg >> 8);
-    _spi.write(arg >> 0);
-    _spi.write(0x95);
-
-    // wait for the repsonse (response[7] == 0)
-    for(int i=0; i<SD_COMMAND_TIMEOUT; i++) {
-        int response = _spi.write(0xFF);
-        if(!(response & 0x80)) {
-            int ocr = _spi.write(0xFF) << 24;
-            ocr |= _spi.write(0xFF) << 16;
-            ocr |= _spi.write(0xFF) << 8;
-            ocr |= _spi.write(0xFF) << 0;
-//            printf("OCR = 0x%08X\n", ocr);
-            _cs = 1;
-            _spi.write(0xFF);
-            return response;
-        }
-    }
-    _cs = 1;
-    _spi.write(0xFF);
-    return -1; // timeout
-}
-
-int SDFileSystem::_cmd8() {
-    _cs = 0; 
-    
-    // send a command
-    _spi.write(0x40 | 8); // CMD8
-    _spi.write(0x00);     // reserved
-    _spi.write(0x00);     // reserved
-    _spi.write(0x01);     // 3.3v
-    _spi.write(0xAA);     // check pattern
-    _spi.write(0x87);     // crc
-
-    // wait for the repsonse (response[7] == 0)
-    for(int i=0; i<SD_COMMAND_TIMEOUT * 1000; i++) {
-        char response[5];
-        response[0] = _spi.write(0xFF);
-        if(!(response[0] & 0x80)) {
-                for(int j=1; j<5; j++) {
-                    response[i] = _spi.write(0xFF);
-                }
-                _cs = 1;
-                _spi.write(0xFF);
-                return response[0];
-        }
-    }
-    _cs = 1;
-    _spi.write(0xFF);
-    return -1; // timeout
-}
-
-int SDFileSystem::_read(char *buffer, int length) {
-    _cs = 0;
-
-    // read until start byte (0xFF)
-    while(_spi.write(0xFF) != 0xFE);
-
-    // read data
-    for(int i=0; i<length; i++) {
-        buffer[i] = _spi.write(0xFF);
-    }
-    _spi.write(0xFF); // checksum
-    _spi.write(0xFF);
-
-    _cs = 1;    
-    _spi.write(0xFF);
-    return 0;
-}
-
-int SDFileSystem::_write(const char *buffer, int length) {
-    _cs = 0;
-    
-    // indicate start of block
-    _spi.write(0xFE);
-    
-    // write the data
-    for(int i=0; i<length; i++) {
-        _spi.write(buffer[i]);
-    }
-    
-    // write the checksum
-    _spi.write(0xFF); 
-    _spi.write(0xFF);
-
-    // check the repsonse token
-    if((_spi.write(0xFF) & 0x1F) != 0x05) {
-        _cs = 1;
-        _spi.write(0xFF);        
-        return 1;
-    }
-
-    // wait for write to finish
-    while(_spi.write(0xFF) == 0);
-
-    _cs = 1; 
-    _spi.write(0xFF);
-    return 0;
-}
-
-static int ext_bits(char *data, int msb, int lsb) {
-    int bits = 0;
-    int size = 1 + msb - lsb; 
-    for(int i=0; i<size; i++) {
-        int position = lsb + i;
-        int byte = 15 - (position >> 3);
-        int bit = position & 0x7;
-        int value = (data[byte] >> bit) & 1;
-        bits |= value << i;
-    }
-    return bits;
-}
-
-int SDFileSystem::_sd_sectors() {
-
-    // CMD9, Response R2 (R1 byte + 16-byte block read)
-    if(_cmdx(9, 0) != 0) {
-        fprintf(stderr, "Didn't get a response from the disk\n");
-        return 0;
-    }
-    
-    char csd[16];    
-    if(_read(csd, 16) != 0) {
-        fprintf(stderr, "Couldn't read csd response from disk\n");
-        return 0;
-    }
-
-    // csd_structure : csd[127:126]
-    // c_size        : csd[73:62]
-    // c_size_mult   : csd[49:47]
-    // read_bl_len   : csd[83:80] - the *maximum* read block length
-
-    int csd_structure = ext_bits(csd, 127, 126);
-    int c_size = ext_bits(csd, 73, 62);
-    int c_size_mult = ext_bits(csd, 49, 47);
-    int read_bl_len = ext_bits(csd, 83, 80);
-
-//    printf("CSD_STRUCT = %d\n", csd_structure);
-    
-    if(csd_structure != 0) {
-        fprintf(stderr, "This disk tastes funny! I only know about type 0 CSD structures\n");
-        return 0;
-    }
-             
-    // memory capacity = BLOCKNR * BLOCK_LEN
-    // where
-    //  BLOCKNR = (C_SIZE+1) * MULT
-    //  MULT = 2^(C_SIZE_MULT+2) (C_SIZE_MULT < 8)
-    //  BLOCK_LEN = 2^READ_BL_LEN, (READ_BL_LEN < 12)         
-                            
-    int block_len = 1 << read_bl_len;
-    int mult = 1 << (c_size_mult + 2);
-    int blocknr = (c_size + 1) * mult;
-    int capacity = blocknr * block_len;
-        
-    int blocks = capacity / 512;
-        
-    return blocks;
-}
--- a/SDFileSystem.h	Mon Nov 19 04:44:11 2012 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,66 +0,0 @@
-/* mbed Microcontroller Library - SDFileSystem
- * Copyright (c) 2008-2009, sford
- */
- 
-// VERY DRAFT CODE!!! 
-
-#ifndef SDFILESYSTEM_H
-#define SDFILESYSTEM_H
-
-#include "mbed.h"
-#include "FATFileSystem.h"
-
-/* Class: SDFileSystem
- *  Access the filesystem on an SD Card using SPI
- *
- * Example:
- * > SDFileSystem sd(p5, p6, p7, p12, "sd");
- * > 
- * > int main() {
- * >     FILE *fp = fopen("/sd/myfile.txt", "w");
- * >     fprintf(fp, "Hello World!\n");
- * >     fclose(fp);
- * > }
- */
-class SDFileSystem : public FATFileSystem {
-public:
-
-    /* Constructor: SDFileSystem
-     *  Create the File System for accessing an SD Card using SPI
-     *
-     * Variables:
-     *  mosi - SPI mosi pin connected to SD Card
-     *  miso - SPI miso pin conencted to SD Card
-     *  sclk - SPI sclk pin connected to SD Card
-     *  cs   - DigitalOut pin used as SD Card chip select
-   *  name - The name used to access the filesystem
-     */
-    SDFileSystem(PinName mosi, PinName miso, PinName sclk, PinName cs, const char* name);
-    virtual int disk_initialize();
-    virtual int disk_write(const char *buffer, int block_number);
-    virtual int disk_read(char *buffer, int block_number);    
-    virtual int disk_status();
-    virtual int disk_sync();
-    virtual int disk_sectors();
-
-protected:
-
-    int _cmd(int cmd, int arg);
-    int _cmdx(int cmd, int arg);
-    int _cmd8();
-    int _cmd58();
-    int initialise_card();
-    int initialise_card_v1();
-    int initialise_card_v2();
-    
-    
-    int _read(char *buffer, int length);
-    int _write(const char *buffer, int length);
-    int _sd_sectors();
-    int _sectors;
-    
-    SPI _spi;
-    DigitalOut _cs;     
-};
-
-#endif
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/SDHCFileSystem.lib	Thu Nov 29 12:18:37 2012 +0000
@@ -0,0 +1,1 @@
+SDHCFileSystem#89846a293813
--- a/log.h	Mon Nov 19 04:44:11 2012 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,4 +0,0 @@
-#define LOGFILE "/sd/canary.log"
-extern bool LogCreated;
-void Log (char *message);
-void LogErr (char *message);
\ No newline at end of file
--- a/main.cpp	Mon Nov 19 04:44:11 2012 +0000
+++ b/main.cpp	Thu Nov 29 12:18:37 2012 +0000
@@ -1,28 +1,54 @@
 #include "mbed.h"
 #include "CAN.h"
 #include "TextLCD.h"
-#include "SDFileSystem.h"
+#include "SDHCFileSystem.h"
 #include "DebounceIn.h"
-#include "log.h"
 #include "beep.h"
 
+#define upLine "\033[1A"
+#define LOGFILE "/sd/canary.log"
+
+//CANcan.cpp
+
+//LEAF OBD
+//1:
+//2:
+//3:    AVCAN-L     White/Blue
+//4:
+//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   8:RS
-//2:GND 7:CANH
-//3:VCC 6:CANL
-//4:R   5:Vref
+//1:D   
+//2:GND 
+//3:VCC 
+//4:R   
+//5:Vref
+//6:CANL
+//7:CANH
+//8:RS
 
 //LPC1768
 //1:    VSS
-//2:        NC:VIN
+//2:        NC:VIN  (4.5-9V supply)
 //3:        NC:VB
 //4:        NC:nR
 //5:    SPI:MOSI   -->  6:SDRAM:DI
 //6:    SPI:MISO   -->  2:SDRAM:DO
 //7:    SPI:SCLK   -->  4:SDRAM:SCLK
 //8:    CS         -->  7:SDRAM:CS
-//9:    CAN1:TX    -->  1:CAN1:D
-//10:   CAN1:RX    -->  4:CAN1:R
+//9:    CAN1:RX    -->  4:CAN1:R
+//10:   CAN1:TX    -->  1:CAN1:D
 //11:   RS         -->  4:LCD:RS
 //12:   E          -->  6:LCD:E
 //13:   D4         -->  11:LCD:D4
@@ -30,19 +56,19 @@
 //15:   D6         -->  13:LCD:D6
 //16:   D7         -->  14:LCD:D7
 //17:   CD         -->  1:SDRAM:CD
-//18:       NC:Ain
+//18:   MON12V     -->  4K to 12V, 1K to VSS  (To be implemented)
 //19:   PB2
 //20:   PB1
 //21:   Spkr+
-//22:       NC:pwm
+//22:   Spkr-           (optional complimentary output for more volume)
 //23:       NC:pwm
-//24:       NC:pwm
-//25:       NC:pwm
-//26:       NC:pwm
+//24:   LEDBLU     -->  18:LCD:BLU (only used for tri-color displays)
+//25:   LEDGRN     -->  17:LCD:GRN (only used for tri-color displays)
+//26:   LEDRED     -->  16:LCD:RED
 //27:   CAN1:Sleep -->  8:CAN1:RS
 //28:   CAN2:Sleep -->  8:CAN2:RS
-//29:   CAN2:RX    -->  4:CAN2:R
-//30:   CAN2:TX    -->  1:CAN2:D
+//29:   CAN2:TX    -->  1:CAN2:D
+//30:   CAN2:RX    -->  4:CAN2:R
 //31:       NC:USB_D+
 //32:       NC:USB_D-
 //33:       NC:Eth_TD+
@@ -51,22 +77,29 @@
 //36:       NC:Eth_RD-
 //37:       NC:IF+
 //38:       NC:IF-
-//39:       NC:5Vout
+//39:       NC:5Vout (only available when connected as USB device)
 //40:   VCC3.3
 
+extern bool LogCreated;
+void Log (char *message);
+void LogErr (char *message);
+
+time_t seconds ;
 Beep buzzer(p21);
-DigitalIn  CD( p17 ); 
-DigitalIn  PB1( p20 ); 
-SDFileSystem sd(p5, p6, p7, p8, "sd"); // SDFileSystem::SDFileSystem(PinName mosi, PinName miso, PinName sclk, PinName cs, const char* name)
+DigitalIn  CD(p17); 
+DebounceIn  dbPB1( p20 );
+;DigitalIn  PB1(p20); 
+SDFileSystem sd(p5, p6, p7, p8, "sd" ); // SDFileSystem::SDFileSystem(PinName mosi, PinName miso, PinName sclk, PinName cs, const char* name)
 TextLCD lcd(p11, p12, p13, p14, p15, p16); // rs, e, d0-d3 (RW to GND)
 Ticker ticker;
+Timer timer;
 DigitalOut led1(LED1);
 DigitalOut led2(LED2);
 DigitalOut led3(LED3);
 DigitalOut led4(LED4);
-CAN can1(p9, p10);      // CAN1 uses pins 9 and 10 (tx, rx)
-CAN can2(p30, p29);     // CAN2 uses pins 30 and 29 (tx, rx)
-bool LogCreated = false;
+CAN can1(p9, p10);      // CAN1 uses pins 9 and 10 (rx, tx) and pin 27 (rs)
+CAN can2(p30, p29);     // CAN2 uses pins 30 and 29 (rx, tx) and pin 28 (rs)
+bool logCreated = false;
 char logMsg[64];
 
 char counter = 0;
@@ -74,84 +107,165 @@
 //DigitalOut can2_SleepMode(p28);     // Use pin 28 to control the sleep mode of can2
 Serial pc(USBTX, USBRX); // tx, rx   default settings (9600 8N1)
 
-void Log (char *message)
+unsigned short getTimeStamp() {// from Gary's code
+
+    int msec = timer.read_ms(); // not synchronized with RTC
+    //unsigned long secs = time(NULL); // seconds past 12:00:00 AM 1 Jan 1900
+    unsigned long secs = msec / 1000;
+    int isecs = secs % 60; // modulo 60 for 0-59 seconds from RTC
+    return ((isecs << 10) + (msec%1000)); // return the two byte time stamp
+}
+
+void readLog ()
 {
     FILE *file;
+    unsigned char c;
+    int i=0;
+    pc.printf("printing file\n");
+    file = fopen(LOGFILE, "r");
+    if (file == NULL) {
+        pc.printf("no file found\n");
+        }
+    while (!feof(file))
+        {
+        c=fgetc(file);
+        pc.printf("%02x ",c);
+        if (++i>11)
+            {
+            pc.printf("\n");
+            i=0;
+            }
+        }
+    pc.printf("\n");
+    pc.printf("\n");
+    fclose(file);
+ }
+ 
+void logCan (CANMessage canRXmsg)
+{
+    FILE *file;
+    unsigned short ts;
+    
+    ts=getTimeStamp();
 
-    if (!LogCreated) {
+    if (!logCreated) {
         file = fopen(LOGFILE, "w");
-        LogCreated = true;
+        logCreated = true;
     }
     else
         file = fopen(LOGFILE, "a");
 
     if (file == NULL) {
-        if (LogCreated)
-            LogCreated = false;
+        if (logCreated)
+            logCreated = false;
+        return;
+    }
+    else
+    {
+        fprintf(file,"%c%c%c%c%c%c%c%c%c%c%c%c",ts>>8,ts&0xff,canRXmsg.id&0xff,(canRXmsg.id>>8)+(canRXmsg.len<<4),canRXmsg.data[0],canRXmsg.data[1],canRXmsg.data[2],canRXmsg.data[3],canRXmsg.data[4],canRXmsg.data[5],canRXmsg.data[6],canRXmsg.data[7]);
+        fclose(file);
+    }
+}
+
+void Log (char *message)
+{
+    FILE *file;
+
+    if (!logCreated) {
+        file = fopen(LOGFILE, "w");
+        logCreated = true;
+    }
+    else
+        file = fopen(LOGFILE, "a");
+
+    if (file == NULL) {
+        if (logCreated)
+            logCreated = false;
         return;
     }
     else
     {
         fputs(message, file);
-        //fprintf(file, message);
         fclose(file);
     }
+}
 
-    if (file)
-        fclose(file);
+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));
+
 }
 
 
-void send() {
-    if(can1.write(CANMessage(0x350, &counter, 1))) {
-        counter++;
-        pc.printf("Message %d sent\n", counter);
-        lcd.printf("sent: %d  \n", counter);
-        if(LogCreated) {
-            if((PB1==0)||(CD==0)){
-                LogCreated=false;
-                pc.printf("Stopping log\n", counter);
-            }else{
-                sprintf(logMsg, "sent: %d \n", counter);
-                Log(logMsg);
-                pc.printf("Message logged\n");
-                buzzer.beep(800,0.025);              }
-        }
-    } 
-    led1 = !led1;
-}
- 
 void recieve1() {
     static CANMessage msg1;
+    unsigned short msgTime;
+    
+    msgTime=getTimeStamp();
     can1.read(msg1);
-    pc.printf("Can1 Message received: %d\n", msg1.data[0]);
+    pc.printf("%sCan1 Message received: %d %x\n", upLine, msg1.data[0], msgTime);
     lcd.printf("Can1 rxd: %d\n", msg1.data[0]);
+    if(logCreated) {
+        if((PB1==0)||(CD==0)){
+            logCreated=false;
+            pc.printf("Stopping log\n", counter);
+            readLog();
+        }else{
+            logCan(msg1);
+        }
+    }
     led2 = !led2;
 }
 void recieve2() {
     static CANMessage msg2;
+    unsigned short msgTime;
+    int milisec;
+    
+    msgTime=getTimeStamp();
+    milisec=timer.read_ms();
+
     can2.read(msg2);
-    pc.printf("Can2 Message received: %d\n", msg2.data[0]);
-    lcd.printf("Can2 rxd: %d\n", msg2.data[0]);
+    pc.printf("%sCan2 Message received: %d %04x %d       \n", upLine, msg2.data[0],msgTime,milisec);
+    ;lcd.printf("Can2 rxd: %d\n", msg2.data[0]);
+    if(logCreated) {
+        if((PB1==0)||(CD==0)){
+            logCreated=false;
+            pc.printf("Stopping log\n\n", counter);
+            readLog();
+        }else{
+            logCan(msg2);
+        }
+    }
     led3 = !led3;
 }
 
 int main() {
     pc.baud(115200);        // change serial interface to pc to 115200, 8N1
-    can1.frequency(100000);
-    can2.frequency(100000);
-    //can1_SleepMode = 0;         // Turn off Sleep Mode
-    //can2_SleepMode = 0;         // Turn off Sleep Mode
+    can1.frequency(1000000);
+    can2.frequency(1000000);
+    //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
     CD.mode(PullUp) ; //SDRAM Chip Detect
-    PB1.mode(PullUp) ; //Pushbutton 1
-    ticker.attach(&send, 1);
+    dbPB1.mode(PullUp) ; //Pushbutton 1
+    ticker.attach(&send1, 1.1);
     can1.attach(&recieve1);
     can2.attach(&recieve2);
+    
+    timer.start() ;
+
+
     if(CD == 1) {
-        pc.printf("Starting Can Log\n");
-        Log("Starting Can Log\n");
+        pc.printf("Starting Can Log\n\n\n\n");
+        Log("");
         } 
     else {
-        pc.printf("No SDRAM Inserted.\n");
+        pc.printf("No SDRAM Inserted.\n\n\n\n");
     }
 }
\ No newline at end of file