C++ (Cpp) i2c_repeat_start Examples

Example #1

File: luke_func.c Project: toolbitorg/m-stack

uint16_t i2c_reg_read(uint8_t regAddr)
{
    uint16_t dat;
    i2c_start();
    i2c_send_byte(I2C_INA_ADDR << 1 | I2C_WRITE_CMD);
    i2c_send_byte(regAddr);
    i2c_repeat_start();                        
    i2c_send_byte(I2C_INA_ADDR << 1 | I2C_READ_CMD);
    dat = i2c_read_byte(1) << 8; 
    dat |= i2c_read_byte(1);
    i2c_stop();
    return dat;
}

Example #2

File: Comm_I2C.cpp Project: 123swk123/DigitalClock

bool cComm_I2C::Receive(uint8_t u8Address, uint8_t *u8ptrData, uint8_t u8Size)
{
  i2c_start();
  i2c_write(m_u8DeviceAddress, I2C_STATUS_CODE_SLA_W_TXD_ACK_RXD);
  i2c_write(u8Address, I2C_STATUS_CODE_DATA_TXD_ACK_RXD);
  i2c_repeat_start();
  i2c_write(m_u8DeviceAddress|0x01, I2C_STATUS_CODE_SLA_R_TXD_ACK_RXD);
  u8Size--;
  while (u8Size--)
  {
    *u8ptrData++ = i2c_write(0xFF, I2C_STATUS_CODE_DATA_RXD_ACK_TXD);
  }
  *u8ptrData++ = i2c_write(0xFF, I2C_STATUS_CODE_DATA_RXD_NOACK_TXD);
  i2c_stop();
  return true;
}