/*!
    \file    readme.txt
    \brief   description of the master transmitter and slave receiver interrupt

    \version 2021-10-30, V1.0.0, firmware for gd32w51x
*/

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*/

  This demo is based on the GD32W515P-EVAL-V1.0 board, it shows how to use the I2C interrupt 
programming mode in master transmitting mode or slave receiving mode. In this demo, 
I2C0 is operated as the master transmitter and I2C1 as the slave receiver. Moreover,
the SCL line and SDA line of I2C0 interface are controlled by the I/O pin PA15 and PB7 
respectively. The SCL and SDA of I2C1 are controlled by the pin PB15 and PA8 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 successfully completed, LED1 and LED2 are on. 

  We should use the jumper to connect the PA15 and PB15. The PB7 and PA8 are 
connected as well.
