wenkong_junshi/Examples/I2C/Master_transmitter&slave_receiver_interrupt

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

\version 2017-02-10, V1.0.0, firmware for GD32F30x
\version 2018-10-10, V1.1.0, firmware for GD32F30x
\version 2018-12-25, V2.0.0, firmware for GD32F30x
\version 2020-09-30, V2.1.0, firmware for GD32F30x
*/

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*/

This demo is based on the GD32307C-EVAL-V1.1 board, it 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 interfaceare 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.