/*!
    \file    readme.txt
    \brief   description of the ADC analog watchdog demo
    
    \version 2026-02-02, V2.4.0, firmware for GD32L23x, add support for GD32L235
*/

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*/

  This demo is based on the GD32L233R-EVAL-V1.1/GD32L235R-EVAL-V1.0 board, it shows 
how to use the ADC analog watchdog to guard continuously an ADC channel. The ADC is 
configured in continuous mode, PA1 is chosen as analog input pin.

  Change the PA1 voltage on the GD32L233R-EVAL-V1.1/GD32L235R-EVAL-V1.0 board, when the channel1 
converted value is over the programmed analog watchdog high threshold (value 0x0A00) or 
below the analog watchdog low threshold(value 0x0400), an WDE interrupt will occur, and 
LED1 will turn on.When the channel1 converted value is in safe range(among 0x0400 and 0x0A00), 
the LED1 will be off.

  The analog input pin should be configured to AIN mode.
