i am trying TWI on STK 600 with atmega 2560. i am using the same code given in the Engineergarage project list. link is http://www.engineersgarage.com/embedded/avr-microcontroller-projects/atmega32-twi-two-wire-interface
i made the required changes. i m able to send a start signal, it is also recognising its address as the status bits are changing but unable to send data furthur.
do i need to put external pull ups in stk600 on sda and scl line??
kindly help and do share ur experience..