File content as of revision 0:265fff2cfb0a:

#include "mbed.h"
#include "I2CSlaveComm.h"

I2CSlaveCustom slave(D14, D15);
I2CSlaveCustom slave2(D2, D8); //use another I2C to emulate the adc

unsigned char PointOnAddress = 0;
unsigned short ReadADCValue = 0;
#pragma pack(push,1)
struct SmartSensorStruct {
  char crc;           ///< Checksum CRC8
  char serial[11];    ///< No Série du capteur. Doit demeurer à l'offset 1 dans la structure
  char gain;          ///< Gain à appliquer
  char sampling_rate; ///< Vitesse de sampling
  char model;         ///< Model de capteur
  short  c1;          ///< Consigne c1 de calcul
  short  c2;          ///< Consigne c2 de calcul
  short  c3;          ///< Consigne c3 de calcul
  char depth;         ///< Profondeur du capteur en mètres ou en pieds
  short  c4;          ///< Consigne c4 de calcul
  unsigned long  code;///< Code de détection du type de smartSensor (Salinité ou Tension)
}SmartSensorStruct_packed;
#pragma pack(pop)

struct SmartSensorStruct stSensor;

char RAMBuffer[256]; //simulate EEPROM

void DoCRC8(char* a_crc8, char b)
{
  char i, j;

  for (i = 0; i < 8; b >>= 1, i++) {

    j = (b ^ (*a_crc8)) & 1;
    (*a_crc8) >>= 1;

    if (j) (*a_crc8) ^= 0x8C;
  }
}

void setADC(unsigned short value)
{
    ReadADCValue = value;
}

char ComputeCRC8(char *buff, char len, char start_data)
{
  char crc8 = 0;
  DoCRC8(&crc8, start_data);
  while (len--) DoCRC8(&crc8, *buff++);

  return crc8;
}


void SaveRamBuffer(char address, char* value, unsigned char length)
{

    unsigned char i;
    for(i = 0; i < length; i++)
        RAMBuffer[address + i] = value[i];
}

void SaveData(char add, long value)
{
    SaveRamBuffer(add, (char*)&value, 4);
}

void I2C_1Process()
{
    char buf[MAX_WRITE_SIZE + 1];
     int nbRx = 0;

     for(int i = 0; i < MAX_WRITE_SIZE; i++) buf[i] = 0;    // Clear buffer

     int rx = slave.receive();

     switch (rx)
     {
         case I2CSlave::ReadAddressed:
            printf("%02x\n", RAMBuffer[PointOnAddress]);
            slave.write(&RAMBuffer[PointOnAddress], 0xF0 - PointOnAddress);
         printf("ReadAddressed 1\n");
         break;
         /*case I2CSlave::WriteGeneral:


         break;*/
         case I2CSlave::WriteAddressed:
             slave.read(buf, MAX_WRITE_SIZE + 1);
             PointOnAddress = buf[0];
             nbRx = slave.getCount();
             //PcUart.printf("nb rx %d\r\n", nbRx);
             if (nbRx > 0)
                 SaveRamBuffer(PointOnAddress, &buf[1], nbRx);
         printf("WriteAddressed 1\n");
         break;
     }
}

void I2C_2Process()
{
     int rx = slave2.receive();
     switch (rx)
     {
         case I2CSlave::ReadAddressed:
            slave2.write((char*)&ReadADCValue, 2);
         printf("ReadAddressed 2 end\n");
         break;
         /*case I2CSlave::WriteGeneral:


         break;*/
         /*case I2CSlave::WriteAddressed:
            //do nothing
         break;*/
     }
}

void I2CSlaveProcess()
{
    I2C_1Process();
    I2C_2Process();
}

void InitI2CSlaveComm()
{
    slave.address(0xA0);
    sprintf(stSensor.serial, "2059123456");
    stSensor.gain = 0x01;
    stSensor.sampling_rate = 0x03;
    stSensor.c1 = -37;
    stSensor.c2 = 634;
    stSensor.c3 = -7;
    stSensor.c4 = -1;
    stSensor.depth = 0x00;
    stSensor.model = 2; //Nombre de données à transmettre vers le ST
    stSensor.code = 0xFFFF; //Type of sensor
    stSensor.crc = ComputeCRC8(((char *)&stSensor)+1, sizeof(SmartSensorStruct_packed) - 7, 0);
    SaveRamBuffer(0, (char*)&stSensor, sizeof(SmartSensorStruct_packed));

    
    slave2.address(0x90);
}