ATY_LIB/HW_ADC_ATY.c

/**
* @file HW_ADC_ATY.c
*
* @param Project DEVICE_GENERAL_ATY_LIB
*
* @author ATY
*
* @copyright
*       - Copyright 2017 - 2025 MZ-ATY
*       - This code follows:
*           - MZ-ATY Various Contents Joint Statement -
*               <a href="https://mengze.top/MZ-ATY_VCJS">
*                        https://mengze.top/MZ-ATY_VCJS</a>
*           - CC 4.0 BY-NC-SA -
*               <a href="https://creativecommons.org/licenses/by-nc-sa/4.0/">
*                        https://creativecommons.org/licenses/by-nc-sa/4.0/</a>
*       - Your use will be deemed to have accepted the terms of this statement.
*
* @brief Familiar functions of uart for STC51
*
* @version
*       - 1_01_221231 > ATY
*           -# Preliminary version, first Release
*       -Undone: over with "\r\n" type
********************************************************************************
*/

#ifndef __HW_ADC_ATY_C
#define __HW_ADC_ATY_C

#include "HW_ADC_ATY.h"

/******************************* For user *************************************/
#if defined (__STC51_ATY)
/**
 * @brief   ADC init
 */
void ADC_Init(void)
{
#ifndef ADCTIM
#define ADCTIM  (*(unsigned char volatile xdata *)0xfea8)
#endif
    P_SW2 |= 0x80;              // change reg sfr
    ADCTIM = 0x3F;              // set ADC internal timing sequence
    P_SW2 &= 0x7F;              // stop change reg sfr
    // ADCCFG = 0x0F;              // set SYSCLK/2/16 as ADC timer
    ADCCFG = 0x00;              // set SYSCLK/2/1 as ADC timer
    ADC_CONTR = 0x80;           // enable ADC
}
#elif defined(__STM32_HAL_ATY)
#endif /* PLATFORM */

/******************************************************************************/

#if defined (__STC51_ATY)
/**
 * @brief   ADC get mcu vref
 * @return  mcu vref data
 */
float ADC_GetVref(void)
{
    uint16_t dataVref = 0;
    float resultVref = 0.0;
    int* BGV;
    BGV = (int __IDATA*)0xEF;
    dataVref = ADC_Get(0x0F);
    resultVref = (1024L * (*BGV) / dataVref);
    return resultVref;
}

/**
 * @brief   ADC get data at channel
 * @param   channel channel
 * @return  adc data
 */
uint16_t ADC_Get(uint8_t channel)
{
    uint16_t errCount = 1000;
    ADC_CONTR = ((ADC_CONTR & 0xF0) | (channel & 0x0F));
    ADC_CONTR |= 0x40;          // start ADC
    __NOP_ATY;
    __NOP_ATY;
    while((!(ADC_CONTR & 0x20)) && errCount)
        errCount--;
    if(errCount)
    {
        ADC_CONTR &= ~0x20;     // clear over flag
        return ((ADC_RES << 2) + (ADC_RESL >> 6));
    }
    return 0x01;
}
#elif defined(__STM32_HAL_ATY)
#include "adc.h"
// set channel to 0 for scand mode
uint16_t ADC_Get(ADC_HandleTypeDef* adc, uint32_t channel)
{
#if defined (__STM32F4xx_ADC_H)
#define SAMPETIME ADC_SAMPLETIME_480CYCLES
#elif defined (__STM32F1xx_HAL_ADC_H)
#define SAMPETIME ADC_SAMPLETIME_239CYCLES_5
#endif

    if(channel != 0){
        ADC_ChannelConfTypeDef sConfig = {0};
        sConfig.Channel = channel;
        sConfig.Rank = 1U;
        sConfig.SamplingTime = SAMPETIME;   // do not set faster than 28 at f103
        if(HAL_ADC_ConfigChannel(adc, &sConfig) != HAL_OK)
        {
            Error_Handler();
        }
    }
    HAL_ADC_Start(adc);
    HAL_ADC_PollForConversion(adc, 1000);
    if(HAL_IS_BIT_SET(HAL_ADC_GetState(adc), HAL_ADC_STATE_REG_EOC))
        return HAL_ADC_GetValue(adc);
    return 0.1;
}

#endif /* PLATFORM */


#endif /* __HW_ADC_ATY_C */

/******************************** End Of File *********************************/