pikapython/bsp/ch582/StdPeriphDriver/CH58x_adc.c

/********************************** (C) COPYRIGHT *******************************
 * File Name          : CH58x_adc.c
 * Author             : WCH
 * Version            : V1.2
 * Date               : 2021/11/17
 * Description
 * Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
 * SPDX-License-Identifier: Apache-2.0
 *******************************************************************************/

#include "CH58x_common.h"

/*********************************************************************
 * @fn      ADC_DataCalib_Rough
 *
 * @brief   <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݴֵ<EFBFBD>,<EFBFBD><EFBFBD>ȡƫ<EFBFBD><EFBFBD>ֵ,<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ADC<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ô˺<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡУ׼ֵ
 *
 * @param   none
 *
 * @return  ƫ<EFBFBD><EFBFBD>
 */
signed short ADC_DataCalib_Rough(void) // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݴֵ<DDB4>,<2C><>ȡƫ<C8A1><C6AB>ֵ
{
    uint16_t i;
    uint32_t sum = 0;
    uint8_t  ch = 0;   // <20><><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8>
    uint8_t  ctrl = 0; // <20><><EFBFBD>ݿ<EFBFBD><DDBF>ƼĴ<C6BC><C4B4><EFBFBD>

    ch = R8_ADC_CHANNEL;
    ctrl = R8_ADC_CFG;
    R8_ADC_CFG = 0;

    ADC_ChannelCfg(1);                                          // ADCУ׼ͨ<D7BC><CDA8><EFBFBD><EFBFBD>ѡ<EFBFBD><D1A1>ͨ<EFBFBD><CDA8>1
    R8_ADC_CFG |= RB_ADC_OFS_TEST | RB_ADC_POWER_ON | (2 << 4); // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģʽ
    R8_ADC_CONVERT = RB_ADC_START;
    while(R8_ADC_CONVERT & RB_ADC_START);
    for(i = 0; i < 16; i++)
    {
        R8_ADC_CONVERT = RB_ADC_START;
        while(R8_ADC_CONVERT & RB_ADC_START);
        sum += (~R16_ADC_DATA) & RB_ADC_DATA;
    }
    sum = (sum + 8) >> 4;
    R8_ADC_CFG &= ~RB_ADC_OFS_TEST; // <20>رղ<D8B1><D5B2><EFBFBD>ģʽ

    R8_ADC_CHANNEL = ch;
    R8_ADC_CFG = ctrl;
    return (2048 - sum);
}

/*********************************************************************
 * @fn      ADC_ExtSingleChSampInit
 *
 * @brief   <EFBFBD>ⲿ<EFBFBD>źŵ<EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD>
 *
 * @param   sp  - refer to ADC_SampClkTypeDef
 * @param   ga  - refer to ADC_SignalPGATypeDef
 *
 * @return  none
 */
void ADC_ExtSingleChSampInit(ADC_SampClkTypeDef sp, ADC_SignalPGATypeDef ga)
{
    R8_TKEY_CFG &= ~RB_TKEY_PWR_ON;
    R8_ADC_CFG = RB_ADC_POWER_ON | RB_ADC_BUF_EN | (sp << 6) | (ga << 4);
}

/*********************************************************************
 * @fn      ADC_ExtDiffChSampInit
 *
 * @brief   <EFBFBD>ⲿ<EFBFBD>źŲ<EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD>
 *
 * @param   sp  - refer to ADC_SampClkTypeDef
 * @param   ga  - refer to ADC_SignalPGATypeDef
 *
 * @return  none
 */
void ADC_ExtDiffChSampInit(ADC_SampClkTypeDef sp, ADC_SignalPGATypeDef ga)
{
    R8_TKEY_CFG &= ~RB_TKEY_PWR_ON;
    R8_ADC_CFG = RB_ADC_POWER_ON | RB_ADC_DIFF_EN | (sp << 6) | (ga << 4);
}

/*********************************************************************
 * @fn      ADC_InterTSSampInit
 *
 * @brief   <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¶ȴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD>
 *
 * @param   none
 *
 * @return  none
 */
void ADC_InterTSSampInit(void)
{
    R8_TKEY_CFG &= ~RB_TKEY_PWR_ON;
    R8_TEM_SENSOR = RB_TEM_SEN_PWR_ON;
    R8_ADC_CHANNEL = CH_INTE_VTEMP;
    R8_ADC_CFG = RB_ADC_BUF_EN | RB_ADC_POWER_ON | RB_ADC_DIFF_EN | (3 << 4);
}

/*********************************************************************
 * @fn      ADC_InterBATSampInit
 *
 * @brief   <EFBFBD><EFBFBD><EFBFBD>õ<EFBFBD><EFBFBD>ص<EFBFBD>ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD>
 *
 * @param   none
 *
 * @return  none
 */
void ADC_InterBATSampInit(void)
{
    R8_TKEY_CFG &= ~RB_TKEY_PWR_ON;
    R8_ADC_CHANNEL = CH_INTE_VBAT;
    R8_ADC_CFG = RB_ADC_POWER_ON | RB_ADC_BUF_EN | (0 << 4); // ʹ<><CAB9>-12dBģʽ<C4A3><CABD>
}

/*********************************************************************
 * @fn      TouchKey_ChSampInit
 *
 * @brief   <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD>
 *
 * @param   none
 *
 * @return  none
 */
void TouchKey_ChSampInit(void)
{
    R8_ADC_CFG = RB_ADC_POWER_ON | RB_ADC_BUF_EN | (2 << 4);
    R8_TKEY_CFG |= RB_TKEY_PWR_ON;
}

/*********************************************************************
 * @fn      ADC_ExcutSingleConver
 *
 * @brief   ADCִ<EFBFBD>е<EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><EFBFBD>
 *
 * @param   none
 *
 * @return  ADCת<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 */
uint16_t ADC_ExcutSingleConver(void)
{
    R8_ADC_CONVERT = RB_ADC_START;
    while(R8_ADC_CONVERT & RB_ADC_START);

    return (R16_ADC_DATA & RB_ADC_DATA);
}

/*********************************************************************
 * @fn      TouchKey_ExcutSingleConver
 *
 * @brief   TouchKeyת<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 *
 * @param   charg   - Touchkey<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>,5bits<EFBFBD><EFBFBD>Ч, t=charg*Tadc
 * @param   disch   - Touchkey<EFBFBD>ŵ<EFBFBD>ʱ<EFBFBD><EFBFBD>,3bits<EFBFBD><EFBFBD>Ч, t=disch*Tadc
 *
 * @return  <EFBFBD><EFBFBD>ǰTouchKey<EFBFBD><EFBFBD>Ч<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 */
uint16_t TouchKey_ExcutSingleConver(uint8_t charg, uint8_t disch)
{
    R8_TKEY_COUNT = (disch << 5) | (charg & 0x1f);
    R8_TKEY_CONVERT = RB_TKEY_START;
    while(R8_TKEY_CONVERT & RB_TKEY_START);
    return (R16_ADC_DATA & RB_ADC_DATA);
}

/*********************************************************************
 * @fn      ADC_AutoConverCycle
 *
 * @brief   <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ADC<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 *
 * @param   cycle   - <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڼ<EFBFBD><EFBFBD>㷽<EFBFBD><EFBFBD>Ϊ(256-cycle)*16*Tsys
 *
 * @return  none
 */
void ADC_AutoConverCycle(uint8_t cycle)
{
    R8_ADC_AUTO_CYCLE = cycle;
}

/*********************************************************************
 * @fn      ADC_DMACfg
 *
 * @brief   <EFBFBD><EFBFBD><EFBFBD><EFBFBD>DMA<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 *
 * @param   s           - <EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>DMA<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param   startAddr   - DMA <EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD>ַ
 * @param   endAddr     - DMA <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ
 * @param   m           - <EFBFBD><EFBFBD><EFBFBD><EFBFBD>DMAģʽ
 *
 * @return  none
 */
void ADC_DMACfg(uint8_t s, uint16_t startAddr, uint16_t endAddr, ADC_DMAModeTypeDef m)
{
    if(s == DISABLE)
    {
        R8_ADC_CTRL_DMA &= ~RB_ADC_DMA_ENABLE;
    }
    else
    {
        R16_ADC_DMA_BEG = startAddr;
        R16_ADC_DMA_END = endAddr;
        if(m)
        {
            R8_ADC_CTRL_DMA |= RB_ADC_DMA_LOOP | RB_ADC_IE_DMA_END | RB_ADC_DMA_ENABLE;
        }
        else
        {
            R8_ADC_CTRL_DMA &= ~RB_ADC_DMA_LOOP;
            R8_ADC_CTRL_DMA |= RB_ADC_IE_DMA_END | RB_ADC_DMA_ENABLE;
        }
    }
}

/*********************************************************************
 * @fn      ADC_GetCurrentTS
 *
 * @brief   <EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD>ǰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¶<EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD>棩
 *
 * @param   ts_v    - <EFBFBD><EFBFBD>ǰ<EFBFBD>¶ȴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 *
 * @return  ת<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¶<EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD>棩
 */
int ADC_GetCurrentTS(uint16_t ts_v)
{
    uint32_t C25;
    int cal;

    C25 = (*((PUINT32)ROM_CFG_TMP_25C));
    cal = (ts_v * 2100) >> 12;
    cal = (((C25 >> 16) & 0xFFFF) ? ((C25 >> 16) & 0xFFFF) : 25) + ((cal - ((int)(C25 & 0xFFFF) - 1050 / 2) * 2) * 10 / 14);
    return (cal);
}