wuxiaojunid/avr-twi

TWI C library for AVR microcontrollers

AVR TWI Library (Flag Polling)

---

Description:
A library to interface the TWI hardware of AVR microcontrollers using the flag polling method. The TWI protocol is also widely known as I2C.

• Functions include:
  • Setting up.
  • Sending START signal.
  • Sending STOP signal.
  • Checking TWI status.
  • Transmitting single byte.
  • Receiving single byte (+ returning ACK/NACK).
  • Transmitting packet of bytes to given slave (SLA) and subaddress.
  • Receiving packet of bytes from given slave (SLA) and subaddress.
  • Setting up slave address (SLA).
    Read the bottom of "TWI.h" to see all functions available.
• All codes for TWI status are included and are used in error checking while tranceiving data.
• My custom I/O macros are required and are included.

---

Memory usage:

• Program: 0 bytes
• Data: 0 bytes

Compiler:
AVR-GCC

Optimization Level:
Optimize (-O1)

---