/*!
\file readme.txt
\brief description of I2S master send
\version 2021-10-30, V1.0.0, firmware for GD32W51x
*/
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This example is based on two GD32W515P-EVAL-V1.0 board, it shows I2S1 master send
communication use DMA mode. In this demo, I2S1 is operated as the master transmitter,
And it will send the data in the i2s1_send array through I2S1.
The demo doesn't perform the data transfer actually, which is due to no specific
slave. In the specific application, we must connect another I2S slave.
