/**
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* @file pan_hal_adc.c
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* @version V0.0.0
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* $Revision: 1 $
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* $Date: 23/09/10 $
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* @brief Panchip series ADC (Analog-to-Digital Converter) HAL (Hardware Abstraction Layer) source file.
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* @note
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* Copyright (C) 2023 Panchip Technology Corp. All rights reserved.
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*****************************************************************************/
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#include "pan_hal.h"
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#include "freertos.h"
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#include "semphr.h"
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SemaphoreHandle_t xSemaphore = NULL;
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void HAL_ADC_Init(ADC_HandleTypeDef *pADC)
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{
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if (xSemaphore == NULL) {
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xSemaphore = xSemaphoreCreateMutex();
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} else {
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return;
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}
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/* Setting input range (0 ~ 1.2V) as default
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* Note: if the input voltage over 1.2V, should
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* adopt r1/r1+r2 mothod
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*/
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CLK_APB1PeriphClockCmd(CLK_APB1Periph_ADC, ENABLE);
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ADC_Init(ADC, true);
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ADC_SelInputRange(ADC,ADC_INPUTRANGE_LOW);
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CLK_APB1PeriphClockCmd(CLK_APB1Periph_ADC, DISABLE);
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}
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void HAL_ADC_DeInit(ADC_HandleTypeDef *pADC)
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{
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pADC->id = ADC_IDLE;
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}
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int32_t HAL_ADC_GetValue(ADC_HandleTypeDef *pADC, void *value)
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{
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uint32_t ch_bit = BIT(pADC->id);
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uint32_t result_code;
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if ((pADC->id > ADC_CH_BATTERY) || ((pADC->id > ADC_CH7) && (pADC->id < ADC_CH_TEMP))) {
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return PAN_HAL_IO_ERROR;
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}
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xSemaphoreTake(xSemaphore, portMAX_DELAY);
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/* Open clock related adc */
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CLK_APB1PeriphClockCmd(CLK_APB1Periph_ADC, ENABLE);
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/* Normal external adc channel sample */
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if (pADC->id <= ADC_CH7) {
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uint16_t temp_buf[32];
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ADC_Open(ADC,ch_bit);
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/* Prepare ADC vbg calib paramter because currnet soc battery volatage has changed in a lot of application*/
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ADC_PrepareVbgCalibData(ADC);
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ADC_PowerOn(ADC);
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/* Delay a while to wait adc stable */
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if (m_adc_opt.chip_info >= 0x20) {
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SYS_delay_10nop(500); // Delay 100us+
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} else {
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SYS_delay_10nop(50000); // Delay 15ms+
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}
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/* It can be optimized by user */
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result_code = ADC_SamplingCodeTrimMean(ADC, temp_buf, 32, 8);
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/* Convert ADC sampling code to voltage */
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*(float *)value = ADC_OutputVoltage(ADC, result_code);
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ADC_PowerDown(ADC);
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} else if (pADC->id == ADC_CH_BATTERY) {
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*(uint16_t *)value = ADC_MeasureSocVbat(ADC);
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} else if (pADC->id == ADC_CH_TEMP) {
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*(float *)value = ADC_MeasureSocTemperature(ADC);
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}
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/* Open clock related adc */
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CLK_APB1PeriphClockCmd(CLK_APB1Periph_ADC, DISABLE);
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xSemaphoreGive(xSemaphore);
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return PAN_HAL_SUCCESS;
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}
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