/*!
    \file    readme.txt
    \brief   description of the master transmitter and slave receiver interrupt
    
    \version 2017-02-10, V1.0.0, firmware for GD32F403
    \version 2018-12-25, V2.0.0, firmware for GD32F403
    \version 2020-09-30, V2.1.0, firmware for GD32F403
*/

/*
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*/

  This shows how to use the I2C interrupt programming mode in master transmitting 
mode or slave receivering mode.In this demo, I2C0 is operated as the master transmitter 
and I2C1 as the slave receiver. Moreover,the SCL line and SDA lineof I2C0 interface
are controled by the I/O pin PB6 and PB7 respectively. The SCL and SDA of I2C1 are 
controled by the pin PB10 and PB11 respectively.

  This demo will send the data of i2c_buffer_transmitter array through I2C1 interface 
to the I2C0, and it will store the data received by I2C1 in the i2c_buffer_receiver
array. If transfer is sucessfully completed, LED2 and LED3 are on. 

  We shoud use the jumper to connect the PB6 and PB10. The PB7 and PB11 are 
connected as well.
