RE: i2c eeprom with 16bit addressing

Quang Phu — Thu, 20 Oct 2016 10:01:45 GMT

Thank you :Dd

RE: i2c eeprom with 16bit addressing

Paolo A. — Sat, 24 Jan 2015 09:26:21 GMT

Good morning to all, it is true that "the night brings advice." I solved the problem and I placed below the correct snippet code:

bool ee_mem24c256_register_read(uint16_t register_address, uint8_t * destination, uint8_t number_of_bytes)
{
    bool    transfer_succeeded;
	  uint8_t w_addr[2];

	  addrH = (int8_t) (register_address>>8);
	  addrL = (int8_t) (register_address&0xFF); 
	
    w_addr[0] = addrH;
    w_addr[1] = addrL;
	
    transfer_succeeded  = twi_master_transfer(m_device_address, w_addr, 2, TWI_DONT_ISSUE_STOP);
    transfer_succeeded &= twi_master_transfer(m_device_address|TWI_READ_BIT, destination, number_of_bytes, TWI_ISSUE_STOP);
    return transfer_succeeded;
}

I hope this can serve .... to all developers CIAO.