xushaoxiang
91 lines
3.0 KiB
C
91 lines
3.0 KiB
C
/*!
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* \file pga_adc.h
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*
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* \brief The head file of pga_adc.h
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*
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* \copyright Revised BSD License, see section \ref LICENSE.
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*
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* \code
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*
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* _ __ _ ________ _
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* | |/ /(_)___ / ____/ /_ (_)___
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* | // / __ \/ / / __ \/ / __ \
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* / |/ / / / / /___/ / / / / /_/ /
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* /_/|_/_/_/ /_/\____/_/ /_/_/ .___/
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* /_/
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* (C) 2022-2025 XinChip
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*
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* \endcode
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*
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* \author ( XinChip ) Alex-J
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*
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* \author ( XinChip )
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*/
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/* Define to prevent recursive inclusion -------------------------------------*/
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#ifndef __BSP_PGA_ADC_H_
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#define __BSP_PGA_ADC_H_
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/*-----------------------------------------------------------------------------------
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INCLUDE HEADE FILES
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------------------------------------------------------------------------------------*/
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#include "stdint.h"
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#include "xc60xx.h"
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/*------------------------------------------------------------------------------------
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Macros
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-------------------------------------------------------------------------------------*/
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#define SAMPLING_DEBUG 1
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#define REC_TEST_EN 1 //录音测试，定时录音
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#define ADC_CLOCK_FREQ_8M ADC_CLK_DIV_0 // ADC_FREQ_8M
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#define ADC_CLOCK_FREQ_4M ADC_CLK_DIV_2 // ADC_FREQ_4M
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#define ADC_CLOCK_FREQ_2M ADC_CLK_DIV_4 // ADC_FREQ_2M
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#define ADC_CLOCK_FREQ_1M ADC_CLK_DIV_8 // ADC_FREQ_1M
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#define ADC_CLOCK_FREQ_500K ADC_CLK_DIV_16 // ADC_FREQ_500K
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#define ADC_FREQ_CLOCK ADC_CLK_DIV_4 // ADC时钟选择
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#define MIC_SAMPLING_8K 0
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#define MIC_SAMPLING_16K 1
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#define SAMPLING_TYPE MIC_SAMPLING_16K
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#define MIC_SAMPLING_MAX_LEN 1 * 256 //缓冲长度,根据需求调节
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/*------------------------------------------------------------------------------------
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TypeDef
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-------------------------------------------------------------------------------------*/
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typedef struct {
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short mic_adc_buff[2][MIC_SAMPLING_MAX_LEN]; //双缓存buff，方便读取以及采样
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uint16_t pga_adc_rx_index; //缓存buff下标
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uint8_t
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save_buf_index; //双缓存buff下标，存放第几个mic_adc_buff[save_buf_index][]
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uint8_t buf_full_flag;
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uint8_t freq_con; //采样率计算
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#if SAMPLING_DEBUG
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uint32_t pga_adc_rx_con;
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uint8_t rx_flag;
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#endif
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#if REC_TEST_EN || SAMPLING_DEBUG
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uint8_t rec_len_time;
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#endif
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} Mic_sampling_cb;
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/*------------------------------------------------------------------------------------
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Global Variables
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-------------------------------------------------------------------------------------*/
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extern Mic_sampling_cb m_sampling_cb;
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/*------------------------------------------------------------------------------------
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Exported Functions
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-------------------------------------------------------------------------------------*/
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void audio_adc_rx_dma_event_handler(void);
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void pga_adc_rx_event_handler(uint16_t pga_adc_val);
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#endif
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