55 lines
1.5 KiB
C
55 lines
1.5 KiB
C
/*
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* bsp_adc.c
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*
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* Created on: 2024年11月29日
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* Author: 123
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*/
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#include "bsp_adc.h"
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#include "CONFIG.h"
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signed short RoughCalib_Value = 0; // ADC粗调偏差值
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static tmosTaskID vbat_task_id = INVALID_TASK_ID;
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void VBAT_ADC_Init(void)
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{
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//ADC_CTRL
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GPIOA_SetBits(GPIO_Pin_0);
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GPIOA_ModeCfg(GPIO_Pin_0, GPIO_ModeOut_PP_5mA);
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//ADC初始化
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/* 单通道采样：选择adc通道8做采样，对应 PA1引脚， 带数据校准功能 */
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GPIOA_ModeCfg(GPIO_Pin_1, GPIO_ModeIN_Floating);
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// 采样率最高8M
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ADC_ExtSingleChSampInit(SampleFreq_8_or_4, ADC_PGA_1_2);
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RoughCalib_Value = ADC_DataCalib_Rough(); // 用于计算ADC内部偏差，记录到全局变量 RoughCalib_Value中
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PRINT("RoughCalib_Value =%d \n", RoughCalib_Value);
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ADC_ChannelCfg(8);
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ADC_ExcutSingleConver();//时间足够时建议再次转换并丢弃首次ADC数据
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DelayMs(10);
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}
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uint16_t VBAT_ProcessEvent(uint8_t task_id, uint16_t events)
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{
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if (events & VBAT_EVT_START)
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{
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uint16_t adc_vbat = 0;
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float vbat = 0;
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ADC_ChannelCfg(8);
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adc_vbat = ADC_ExcutSingleConver() + RoughCalib_Value;
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PRINT("adc_vbat =%d \n", adc_vbat);
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vbat = (adc_vbat/1024.0-1)*1.05;
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PRINT("vbat =%f \n", vbat);
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tmos_start_task(vbat_task_id, VBAT_EVT_START, MS1_TO_SYSTEM_TIME(1000));
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return (events ^ VBAT_EVT_START);
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}
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return 0;
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}
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void BSP_VBAT_Init(void)
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{
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VBAT_ADC_Init();
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vbat_task_id = TMOS_ProcessEventRegister(VBAT_ProcessEvent);
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tmos_set_event(vbat_task_id, VBAT_EVT_START);
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}
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