Example program provided by Embedded Systems Academy, Copyright 2000
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This example: SLAVE - name of application: main.c
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Demonstration of talking to a another I2C node on the I2C bus.


Hardware requirements
=====================
2 x Phytec RDK 591 with Philips 591
Null modem cable (straight through connection)


Software requirements
=====================
Phytec Flash Tools (part of RDK 591)
  www.phytec.com
Raisonance 8051 compiler system - EVAL version sufficient
  www.raisonance.com
or Keil 8051 Compiler System - EVAL version sufficient
  www.keil.com
Optional: Development Assistant-C by RistanCASE
  www.ristancase.ch
MASTER example.
  www.esacademy.com


Tested using
============

Raisonance 51 Toolset version 6.1.1
Keil C51 Toolset version 6.00


Application description
=============================================
Raisonance specific files have their names prefixed with 'r'.
Keil specific files have their names prefixed with 'k'.
The same source files are used for both compilers.

This program receives a data byte from another 591 microcontroller
the data depending on whether switch S1 or S2 is pressed, and turns
LED D1 or D2 on accordingly.

The status of the I2C may be read in the variable i2c_status and will be
I2C_BUSY, I2C_OK or I2C_ERROR.
The slave address must be F2H.