I am looking for some experienced guys working with the 16F877 as master with I2C protocol.. I have tried to figure out some working routine from the datasheet, but in contrast to the USART programming there is no 'to-do' list for I2C Master mode.. can anyone help me out as my own routines don't work ? Thanks in advance! Achim Vollhardt avollhar@physik.unizh.ch