GD32F3x0_Firmware_Library/Examples/DAC/DAC_LFSR_noise_mode/readme.txt

/*!
    \file  readme.txt
    \brief description of DAC_LFSR_noise_mode example
*/

/*
    Copyright (C) 2017 GigaDevice

    2017-06-06, V1.0.0, firmware for GD32F3x0
*/

  This example is based on the GD32350R-EVAL board, it shows how to use DAC to generate
LFSR noise wave. TIMER5 is chosen to trigger DAC. The DAC output pin is configured PA4. 
The LFSR noise wave can be observed through the oscilloscope.