/*---------------------------------------------------------------------------*/
INT8U RTC_RandomRead(INT8U Address)
// Description:
// Random Read Operation. Data is read from the RTC. The RTC
// address is defined with the parameter Address.
{
INT8U data_in;
#if (defined I2C_SW && I2C_SW == 1)
CRITICAL_SECTION_START();
sw_i2c_start(); // Send start signal
sw_i2c_write(DS1307Address); // Send identifer I2C address (10100000b)
delay_time(I2C_DELAY);
sw_i2c_write((INT8U) Address); // Send address to EEPROM
delay_time(I2C_DELAY);
sw_i2c_start(); // Send I2C Start Transfer
sw_i2c_write(DS1307Address | 1); // Send identifer I2C address (10100001b)
delay_time(I2C_DELAY);
data_in = sw_i2c_read(0); // Read byte
sw_i2c_stop(); // Send I2C Stop Transfer
CRITICAL_SECTION_END();
#else
IIC_transmite(DS1307Address, Address, NULL);
IIC_recebe(DS1307Address, &data_in);
#endif
return data_in;
}
/*---------------------------------------------------------------------------*/
u08 EEPROM_RandomRead(u16 Address)
// Description:
// Random Read Operation. Data is read from the EEPROM. The EEPROM
// address is defined with the parameter Address.
{
char data_in;
#if (defined I2C_SW && I2C_SW == 1)
sw_i2c_start(); // Send start signal
sw_i2c_write(EEPROMAddress);// Send identifer I2C address (10100000b)
delay_time(I2C_DELAY);
sw_i2c_write((unsigned char) (high_byte(Address)));// Send address to EEPROM
delay_time(I2C_DELAY);
sw_i2c_write((unsigned char) Address);// Send address to EEPROM
delay_time(I2C_DELAY);
sw_i2c_start();// Send I2C Start Transfer
sw_i2c_write(EEPROMAddress + 1);// Send identifer I2C address (10100001b)
delay_time(I2C_DELAY);
data_in = sw_i2c_read(0);// Read byte
sw_i2c_stop(); // Send I2C Stop Transfer
#else
/* Dummy write: Transmite NULL depois gera um sinal de start repeated */
IIC_transmite(EEPROMAddress, Address, NULL);
IIC_recebe(EEPROMAddress, &data_in);
#endif
return data_in;
}
/*---------------------------------------------------------------------------*/
INT8U RTC_CurrentAddressRead(void)
// Description:
// Current Address Read Operation. Data is read from the RTC. The current
// address from the RTC is used.
{
INT8U data_in;
#if (defined I2C_SW && I2C_SW == 1)
CRITICAL_SECTION_START();
sw_i2c_start(); // Send I2C Start Transfer
sw_i2c_write(DS1307Address | 1); // Send identifer I2C address (10100001b)
data_in = sw_i2c_read(0); // Read byte
sw_i2c_stop(); // Send I2C Stop Transfer
CRITICAL_SECTION_END();
#else
IIC_recebe(DS1307Address, &data_in);
#endif
return data_in;
}
/*---------------------------------------------------------------------------*/
u08 EEPROM_CurrentAddressRead(void)
// Description:
// Current Address Read Operation. Data is read from the EEPROM. The current
// address from the EEPROM is used.
{
u08 data_in;
#if (defined I2C_SW && I2C_SW == 1)
sw_i2c_start(); // Send start signal
sw_i2c_write(EEPROMAddress);// Send identifer I2C address (10100000b)
sw_i2c_start(); // Send I2C Start Transfer
sw_i2c_write(EEPROMAddress + 1);// Send identifer I2C address (10100001b)
data_in = sw_i2c_read(0);// Read byte
sw_i2c_stop(); // Send I2C Stop Transfer
#else
IIC_recebe(EEPROMAddress, &data_in);
#endif
return data_in;
}
