diff options
Diffstat (limited to 'libraries')
| -rw-r--r-- | libraries/OBD/OBD.cpp | 41 | ||||
| -rw-r--r-- | libraries/OBD/OBD.h | 15 |
2 files changed, 32 insertions, 24 deletions
diff --git a/libraries/OBD/OBD.cpp b/libraries/OBD/OBD.cpp index 0e09640..8df7410 100644 --- a/libraries/OBD/OBD.cpp +++ b/libraries/OBD/OBD.cpp @@ -278,17 +278,9 @@ bool COBD::isValidPID(byte pid) return pidmap[i] & b; } -void COBD::begin(unsigned long baudrate) +void COBD::begin() { OBDUART.begin(OBD_SERIAL_BAUDRATE); - if (baudrate) { - OBDUART.print("ATBR1 "); - OBDUART.print(baudrate); - OBDUART.print('\r'); - OBDUART.end(); - delay(100); - OBDUART.begin(baudrate); - } } byte COBD::receive(char* buffer, int timeout) @@ -378,9 +370,20 @@ bool COBD::init(byte protocol) return true; } -void COBD::uninit() +void COBD::end() { m_state = OBD_DISCONNECTED; + OBDUART.end(); +} + +void COBD::setBaudRate(long baudrate) +{ + OBDUART.print("ATBR1 "); + OBDUART.print(baudrate); + OBDUART.print('\r'); + OBDUART.end(); + delay(100); + OBDUART.begin(baudrate); } #ifdef DEBUG @@ -397,14 +400,18 @@ void COBD::debugOutput(const char *s) * OBD-II I2C Adapter *************************************************************************/ -void COBDI2C::begin(byte addr) +void COBDI2C::begin() { - m_addr = addr; Wire.begin(); memset(obdPid, 0, sizeof(obdPid)); memset(obdInfo, 0, sizeof(obdInfo)); } +void COBDI2C::end() +{ + m_state = OBD_DISCONNECTED; +} + bool COBDI2C::init(byte protocol) { m_state = OBD_CONNECTING; @@ -439,7 +446,7 @@ bool COBDI2C::read(byte pid, int& result) void COBDI2C::write(const char* s) { COMMAND_BLOCK cmdblock = {millis(), CMD_SEND_AT_COMMAND}; - Wire.beginTransmission(m_addr); + Wire.beginTransmission(I2C_ADDR); Wire.write((byte*)&cmdblock, sizeof(cmdblock)); Wire.write(s); Wire.endTransmission(); @@ -448,7 +455,7 @@ void COBDI2C::write(const char* s) bool COBDI2C::sendCommand(byte cmd, uint8_t data, byte* payload, byte payloadBytes) { COMMAND_BLOCK cmdblock = {millis(), cmd, data}; - Wire.beginTransmission(m_addr); + Wire.beginTransmission(I2C_ADDR); bool success = Wire.write((byte*)&cmdblock, sizeof(COMMAND_BLOCK)) == sizeof(COMMAND_BLOCK); if (payload) Wire.write(payload, payloadBytes); Wire.endTransmission(); @@ -460,7 +467,7 @@ byte COBDI2C::receive(char* buffer, int timeout) uint32_t start = millis(); byte offset = 0; do { - Wire.requestFrom((byte)m_addr, (byte)MAX_PAYLOAD_SIZE, (byte)1); + Wire.requestFrom((byte)I2C_ADDR, (byte)MAX_PAYLOAD_SIZE, (byte)1); bool hasEnd = false; for (byte i = 0; i < MAX_PAYLOAD_SIZE; i++) { @@ -487,7 +494,7 @@ byte COBDI2C::receive(char* buffer, int timeout) bool COBDI2C::gpsQuery(GPS_DATA* gpsdata) { if (!sendCommand(CMD_GPS_QUERY, 0)) return false; - Wire.requestFrom((byte)m_addr, (byte)MAX_PAYLOAD_SIZE, (byte)1); + Wire.requestFrom((byte)I2C_ADDR, (byte)MAX_PAYLOAD_SIZE, (byte)1); Wire.readBytes((char*)gpsdata, MAX_PAYLOAD_SIZE); return true; } @@ -521,6 +528,6 @@ void COBDI2C::loadData() { sendCommand(CMD_LOAD_OBD_DATA); dataIdleLoop(); - Wire.requestFrom((byte)m_addr, (byte)MAX_PAYLOAD_SIZE, (byte)0); + Wire.requestFrom((byte)I2C_ADDR, (byte)MAX_PAYLOAD_SIZE, (byte)0); Wire.readBytes((char*)obdInfo, MAX_PAYLOAD_SIZE); } diff --git a/libraries/OBD/OBD.h b/libraries/OBD/OBD.h index 0a15e97..02d735d 100644 --- a/libraries/OBD/OBD.h +++ b/libraries/OBD/OBD.h @@ -104,13 +104,15 @@ public: Serial baudrate is only adjustable for Arduino OBD-II Adapters V2
Check out http://freematics.com/pages/products/arduino-obd-adapter
*/
- virtual void begin(unsigned long baudrate = 0);
+ virtual void begin();
// initialize OBD-II connection
virtual bool init(byte protocol = 0);
// un-initialize OBD-II connection
- virtual void uninit();
+ virtual void end();
+ // set serial baud rate
+ virtual void setBaudRate(long baudrate);
// get connection state
- OBD_STATES getState() { return m_state; }
+ virtual OBD_STATES getState() { return m_state; }
// read specified OBD-II PID value
virtual bool read(byte pid, int& result);
// set device into
@@ -128,15 +130,13 @@ public: // retrive and parse the response of specifie PID
virtual bool getResult(byte& pid, int& result);
// determine if the PID is supported
- bool isValidPID(byte pid);
+ virtual bool isValidPID(byte pid);
// set current PID mode
byte dataMode;
// occurrence of errors
byte errors;
// bit map of supported PIDs
byte pidmap[4 * 4];
- // current VIN
- byte vin[17];
protected:
virtual char* getResponse(byte& pid, char* buffer);
virtual byte receive(char* buffer = 0, int timeout = OBD_TIMEOUT_SHORT);
@@ -206,7 +206,8 @@ typedef struct { class COBDI2C : public COBD {
public:
- void begin(byte addr = I2C_ADDR);
+ void begin();
+ void end();
bool init(byte protocol = 0);
bool read(byte pid, int& result);
void write(const char* s);
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