66 lines
1.5 KiB
C++
66 lines
1.5 KiB
C++
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#include <stdlib.h>
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#include <stdio.h>
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#include "HAL\HAL.h"
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#ifdef _WIN32
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# include <windows.h>
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#endif
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static Power_Info_t Power_Info;
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void Power_Init(){
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}
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void Power_GetInfo(Power_Info_t* info)
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{
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/* Current version not support charging detect. */
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info->isCharging = false;
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info->usage = Power_Info.capacity;
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info->voltage = Power_Info.voltage;
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info->capacity = Power_Info.capacity;
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}
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void Power_GetBatteryVoltage(){
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static uint16_t voltage = 3000;
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voltage += 100;
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if (voltage > 4300) {
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voltage = 3000;
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}
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Power_Info.voltage = voltage;
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}
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void Power_SetEventCallback(Power_CallbackFunction_t callback)
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{
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}
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static void Power_CalBatteryCapacity(float vol){
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const int precent[] = {100, 90, 80, 70, 60, 50, 40, 30, 20, 15, 10, 5, 0};
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const float voltage[] = {4.2f, 4.08f, 4.00f, 3.93f, 3.87f, 3.82f, 3.79f, 3.77f, 3.73f, 3.7f, 3.68f, 3.5f, 3.0f};
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int i = 0;
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int LEN = 13;
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for(i = 0; i < LEN; i++){
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if(vol >= voltage[i]){
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break;
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}
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}
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int offset = 0;
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// 对于非关键点的电压数据进行线性拟合
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if(i > 0 && i < LEN){
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float dv = vol - voltage[i];
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offset = (int)((dv / (voltage[i-1] - voltage[i]))*(precent[i-1] - precent[i]));
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}
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Power_Info.capacity = precent[i] + offset;
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}
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void Power_Update(){
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/* Get Battery voltage form adc. */
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Power_GetBatteryVoltage();
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/* Calculate battery capacity. */
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Power_CalBatteryCapacity((Power_Info.voltage / 1000.0f));
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}
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