/*!
    \file    readme.txt
    \brief   description of the ADC1 analog watchdog
    
    \version 2026-02-04, V1.3.0, firmware for GD32H75E
*/

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*/

  Connect the external voltage to PA3 on the GD32H75EY-EVAL-V1.0 board, when the 
PA3(channel15) converted value is over the programmed analog watchdog 1 high 
threshold (value 0xA00) or below the analog watchdog 1 low threshold(value 0x400), 
an WDE1 interrupt will occur, and LED3 will be on. When the PA3 converted value is 
in safe range(among 0x400 and 0xA00), the LED3 will be off.

  The analog input pin should be configured to AIN mode.

  We can watch PA3 converted value by COM.

  This example requires printing floating-point data. Please configure the
"Settings->GD ARM MCU Linker->Miscellaneous" option in the Embedded 
Builder project and check "Use float with nano printf" to enable this functionality.