This application note shows how to write an Inter Integrated Circuit bus driver (I2C) for the Philips P90CL301
micro-controller.
It is not only an example of writing a driver, but it also includes a set of application interface software routines to
quickly implement a complete I2C multi-master system application.
For specific applications the user will have to make minimal changes in the driver program. Using the driver
means linking modules to your application software and including a header-file into the application source
programs. A small example program of how to use the driver is listed.
The driver supports i.a. polled or interrupt driven message handling, slave message transfers and multi-master
system applications. Furthermore, it is made suitable for use in conjunction with real time operating systems, like
pSOS+.