/*!
    \file    readme.txt
    \brief   ADC_temperature_Vref

    \version 2026-02-05, V1.3.0, firmware for gd32c2x1
*/

/*
    Copyright (c) 2026, GigaDevice Semiconductor Inc.

    Redistribution and use in source and binary forms, with or without modification, 
are permitted provided that the following conditions are met:

    1. Redistributions of source code must retain the above copyright notice, this 
       list of conditions and the following disclaimer.
    2. Redistributions in binary form must reproduce the above copyright notice, 
       this list of conditions and the following disclaimer in the documentation 
       and/or other materials provided with the distribution.
    3. Neither the name of the copyright holder nor the names of its contributors 
       may be used to endorse or promote products derived from this software without 
       specific prior written permission.

    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
OF SUCH DAMAGE.
*/

  This example is based on the GD32C231C-EVAL-V1.0 board, it shows
how to use the ADC to convert analog signal to digital data. The ADC is configured in 
dependent mode, temperature sensor channel and VREFINT channel are chosen as analog input pin.
The real temperature and VREFINT voltage is calculated based on 3.3V.

  As the ADC convertion begins by software, the converted data in the ADC_IDATAx register,
where the x is 0 to 1.

  We can watch 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.
