Mcb517 I2C source code. For Freescale chip family; for the need to study I2C or IIC source code with good reference. The original source of acquisition has been forgotten. This file contains example code to print over the serial port of the MCB517 MCU and Evaultion Board (EVAL-MCB517QS). This example will test the I2C function of the MCB517. This will be done by writing and reading from a serial A/D & D/A (P8591). This example will bit bang two general I/O ports for I2C The example work with communicate at: 9600, 8, N, 1. This code was tested using the mon-51 connected through COM-1 of the eval board. CPU Frequency: 11.0592 MHz