AVR-TWIlib

This library makes it easy to use the Two Wire Interface of the AVR ATmega MCUs.
Curently only supports the MCU to be in master mode (slave mode will be added in the future).
This library has been tested on the ATmega 328p.
Thanks to the simple math, this library works with non-standard SCL frequencies and non-standard CPU clock frequencies.

Usage:

• Initialize the TWI with TWI_Init(SCLFrequency).
• Use the TWI_Transmit(SlaveAddress, Data, DataLenght, RepeatedStart) function to send data to a slave device.
• • Use the TWI_TransmitByte(slaveAddress, Data, RepeatedStart)function to send a single byte to a slave device.
• Use the TWI_Recieve(SlaveAddress, Data, DataLenght) function to receive data from a slave device.
• • Use the TWI_ReceiveByte(slaveAddress)function to send a single byte to a slave device (this function returns the received data).

Macros:

For SCL Frequency selection

__TWI_FREQ_100K 100  
__TWI_FREQ_250K 250  
__TWI_FREQ_400K 400