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// configurations
#define ENABLE_DATA_OUT 1
#define ENABLE_DATA_LOG 1
typedef struct {
uint32_t /*DWORD*/ time;
uint16_t /*WORD*/ pid;
uint8_t /*BYTE*/ flags;
uint8_t /*BYTE*/ checksum;
float value;
} LOG_DATA;
typedef struct {
uint32_t /*DWORD*/ time;
uint16_t /*WORD*/ pid;
uint8_t /*BYTE*/ flags;
uint8_t /*BYTE*/ checksum;
float value[3];
} LOG_DATA_COMM;
#define PID_GPS_COORDINATES 0xF00A
#define PID_GPS_ALTITUDE 0xF00C
#define PID_GPS_SPEED 0xF00D
#define PID_GPS_HEADING 0xF00E
#define PID_GPS_SAT_COUNT 0xF00F
#define PID_GPS_TIME 0xF010
#define PID_ACC 0xF020
#define PID_GYRO 0xF021
#define FILE_NAME_FORMAT "DAT%05d.LOG"
#if ENABLE_DATA_OUT
#if defined(__AVR_ATmega2560__) || defined(__AVR_ATmega1280__)
SoftwareSerial mySerial(A8, A9); /* for BLE Shield on MEGA*/
#elif defined(__AVR_ATmega644P__)
SoftwareSerial mySerial(9, 10); /* for Microduino */
#else
SoftwareSerial mySerial(A2, A3); /* for BLE Shield on UNO*/
#endif
#endif
class CDataLogger {
public:
void initSender()
{
#if ENABLE_DATA_OUT
mySerial.begin(9600);
#endif
}
void logData(uint16_t pid, float value)
{
LOG_DATA_COMM ld = {dataTime, pid, 1, 0, value};
ld.checksum = getChecksum((char*)&ld, 12);
#if ENABLE_DATA_OUT
mySerial.write((uint8_t*)&ld, 12);
#endif
#if ENABLE_DATA_LOG
sdfile.write((uint8_t*)&ld, 12);
#endif
dataSize += 12;
}
void logData(uint16_t pid, float value1, float value2)
{
LOG_DATA_COMM ld = {dataTime, pid, 2, 0, {value1, value2}};
ld.checksum = getChecksum((char*)&ld, 16);
#if ENABLE_DATA_OUT
mySerial.write((uint8_t*)&ld, 16);
#endif
#if ENABLE_DATA_LOG
sdfile.write((uint8_t*)&ld, 16);
#endif
dataSize += 16;
}
void logData(uint16_t pid, float value1, float value2, float value3)
{
LOG_DATA_COMM ld = {dataTime, pid, 3, 0, {value1, value2, value3}};
ld.checksum = getChecksum((char*)&ld, 20);
#if ENABLE_DATA_OUT
mySerial.write((uint8_t*)&ld, 20);
#endif
#if ENABLE_DATA_LOG
sdfile.write((uint8_t*)&ld, 20);
#endif
dataSize += 20;
}
#if ENABLE_DATA_LOG
bool openFile(uint16_t index)
{
char filename[13];
sprintf(filename, FILE_NAME_FORMAT, index);
sdfile = SD.open(filename, FILE_WRITE);
if (!sdfile) {
return false;
}
uint32_t d;
d = 'UDUS';
sdfile.write((uint8_t*)&d, 4); // id
d = 256;
sdfile.write((uint8_t*)&d, 4); // offset
sdfile.write((uint8_t)0x10); // VER
sdfile.write((uint8_t)0);
sdfile.write((uint8_t)0);
sdfile.write((uint8_t)0);
d = 0;
sdfile.write((uint8_t*)&d, 4); // date
sdfile.write((uint8_t*)&d, 4); // time
for (byte i = 0; i < 256 - 20; i++)
sdfile.write((uint8_t)0);
dataSize = 256;
return true;
}
void closeFile()
{
sdfile.close();
}
void flushFile()
{
sdfile.flush();
}
#endif
uint32_t dataTime;
uint32_t dataSize;
private:
static byte getChecksum(char* buffer, byte len)
{
uint8_t checksum = 0;
for (byte i = 0; i < len; i++) {
checksum ^= buffer[i];
}
return checksum;
}
#if ENABLE_DATA_LOG
File sdfile;
#endif
};
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