/*!
    \file    readme.txt
    \brief   description of the ADC1 analog watchdog1 demo
    
    \version 2026-02-04, V1.5.0, firmware for GD32G5x3
*/

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*/

  Connect the external voltage to PA4 on the GD32G553Q-EVAL-V1.0 board. when the PA4 (channel15) 
converted value is over the programmed analog watchdog 1 high threshold (value 0x0A00) or below 
the analog watchdog 1 low threshold (value 0x0400), an WDE1 interrupt will occur, and 
LED2 will be on. When the PA4 converted value is in safe range (among 0x0400 and 0x0A00),
the LED2 will be off.

  The analog input pin should be configured to AIN mode.
  We can watch PA4 converted value by COM.
  