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

    \version 2025-01-01, V2.5.0, firmware for GD32F3x0
*/

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*/

  This demo is based on the GD32350R-EVAL-V1.0 board, it shows how to use DMA channel5 to transimit data
from RAM memory to I2C0 data register and how to use DMA channel4 to receive data from I2C1 data register. 

  In this demo, I2C0 is operated as master transmitter ,I2C1 is operated as slave receiver and the SCL 
line and SDA line of I2C interface are controlled by the I/O pin PB10 and PB11(or PB6 and PB7) respectively.
If transfer is successfully completed, LED1 and LED2 is light. 

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

note: If the user needs to use the I2C routine, the C8 capacitor on GD32350R-EVAL-V1.0 board should be removed.
