init
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/********************************** (C) COPYRIGHT *******************************
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* File Name : temperature.c
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* Author : WCH
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* Version : V1.0.0
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* Date : 2023/11/17
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* Description : Temperature program body.
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*********************************************************************************
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* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
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* Attention: This software (modified or not) and binary are used for
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* microcontroller manufactured by Nanjing Qinheng Microelectronics.
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*******************************************************************************/
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/*
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*@Note
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*Internal temperature sensor routine:
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*Through the ADC channel 16, the output voltage value and temperature value of the internal
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*temperature sensor are collected.
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*
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*/
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#include "debug.h"
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#include "lib/telemetry/telemetry.h"
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/* Global Variable */
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int16_t Calibrattion_Val = 0;
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/*********************************************************************
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* @fn ADC_Function_Init
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*
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* @brief Initializes ADC collection.
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*
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* @return none
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*/
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void ADC_Function_Init(void)
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{
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ADC_InitTypeDef ADC_InitStructure={0};
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE );
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RCC_ADCCLKConfig(RCC_PCLK2_Div8);
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ADC_DeInit(ADC1);
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ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;
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ADC_InitStructure.ADC_ScanConvMode = DISABLE;
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ADC_InitStructure.ADC_ContinuousConvMode = DISABLE;
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ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;
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ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
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ADC_InitStructure.ADC_NbrOfChannel = 1;
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ADC_Init(ADC1, &ADC_InitStructure);
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ADC_Cmd(ADC1, ENABLE);
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ADC_BufferCmd(ADC1, DISABLE); //disable buffer
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ADC_ResetCalibration(ADC1);
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while(ADC_GetResetCalibrationStatus(ADC1));
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ADC_StartCalibration(ADC1);
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while(ADC_GetCalibrationStatus(ADC1));
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Calibrattion_Val = Get_CalibrationValue(ADC1);
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ADC_BufferCmd(ADC1, ENABLE); //enable buffer
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ADC_TempSensorVrefintCmd(ENABLE);
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}
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/*********************************************************************
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* @fn Get_ADC_Val
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*
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* @brief Returns ADCx conversion result data.
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*
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* @param ch - ADC channel.
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* ADC_Channel_0 - ADC Channel0 selected.
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* ADC_Channel_1 - ADC Channel1 selected.
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* ADC_Channel_2 - ADC Channel2 selected.
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* ADC_Channel_3 - ADC Channel3 selected.
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* ADC_Channel_4 - ADC Channel4 selected.
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* ADC_Channel_5 - ADC Channel5 selected.
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* ADC_Channel_6 - ADC Channel6 selected.
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* ADC_Channel_7 - ADC Channel7 selected.
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* ADC_Channel_8 - ADC Channel8 selected.
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* ADC_Channel_9 - ADC Channel9 selected.
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* ADC_Channel_10 - ADC Channel10 selected.
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* ADC_Channel_11 - ADC Channel11 selected.
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* ADC_Channel_12 - ADC Channel12 selected.
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* ADC_Channel_13 - ADC Channel13 selected.
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* ADC_Channel_14 - ADC Channel14 selected.
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* ADC_Channel_15 - ADC Channel15 selected.
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* ADC_Channel_16 - ADC Channel16 selected.
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* ADC_Channel_17 - ADC Channel17 selected.
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*
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* @return none
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*/
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uint16_t Get_ADC_Val(uint8_t ch)
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{
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uint16_t val;
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ADC_RegularChannelConfig(ADC1, ch, 1, ADC_SampleTime_239Cycles5 );
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ADC_SoftwareStartConvCmd(ADC1, ENABLE);
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while(!ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC ));
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val = ADC_GetConversionValue(ADC1);
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return val;
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}
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/*********************************************************************
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* @fn Get_ADC_Average
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*
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* @brief Returns ADCx conversion result average data.
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*
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* @param ch - ADC channel.
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* ADC_Channel_0 - ADC Channel0 selected.
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* ADC_Channel_1 - ADC Channel1 selected.
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* ADC_Channel_2 - ADC Channel2 selected.
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* ADC_Channel_3 - ADC Channel3 selected.
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* ADC_Channel_4 - ADC Channel4 selected.
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* ADC_Channel_5 - ADC Channel5 selected.
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* ADC_Channel_6 - ADC Channel6 selected.
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* ADC_Channel_7 - ADC Channel7 selected.
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* ADC_Channel_8 - ADC Channel8 selected.
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* ADC_Channel_9 - ADC Channel9 selected.
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* ADC_Channel_10 - ADC Channel10 selected.
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* ADC_Channel_11 - ADC Channel11 selected.
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* ADC_Channel_12 - ADC Channel12 selected.
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* ADC_Channel_13 - ADC Channel13 selected.
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* ADC_Channel_14 - ADC Channel14 selected.
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* ADC_Channel_15 - ADC Channel15 selected.
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* ADC_Channel_16 - ADC Channel16 selected.
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* ADC_Channel_17 - ADC Channel17 selected.
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*
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* @return val - The Data conversion value.
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*/
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uint16_t Get_ADC_Average(uint8_t ch,uint8_t times)
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{
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u32 temp_val=0;
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uint8_t t;
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uint16_t val;
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for(t=0;t<times;t++)
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{
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temp_val+=Get_ADC_Val(ch);
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Delay_Ms(5);
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}
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val = temp_val/times;
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return val;
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}
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/*********************************************************************
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* @fn Get_ConversionVal
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*
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* @brief Get Conversion Value.
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*
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* @param val - Sampling value
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*
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* @return val+Calibrattion_Val - Conversion Value.
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*/
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uint16_t Get_ConversionVal(int16_t val)
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{
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if((val+Calibrattion_Val)<0|| val==0) return 0;
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if((Calibrattion_Val+val)>4095||val==4095) return 4095;
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return (val+Calibrattion_Val);
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}
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s32 TempSensor_Volt_To_Temper_x10(s32 Value)
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{
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s32 Temper_x10;
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s32 Refer_Volt, Refer_Temper;
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s32 k = 43; // slope in mV/¡ãC
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// Read factory calibration values
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Refer_Volt = (s32)((*(u32 *)0x1FFFF720) & 0x0000FFFF); // mV at reference temp
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Refer_Temper = (s32)(((*(u32 *)0x1FFFF720) >> 16) & 0x0000FFFF); // ¡ãC
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// Compute temperature in decicelsius
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// Formula: T_x10 = Tref*10 - ((V - Vref)*100 + k/2) / k
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// Multiply (V - Vref) by 100 to get tenths of ¡ãC
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Temper_x10 = Refer_Temper * 10 - ((Value - Refer_Volt) * 100 + (k / 2)) / k;
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return Temper_x10;
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}
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s32 getTemperature(void)
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{
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uint16_t ADC_val;
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s32 val_mv;
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ADC_val = Get_ADC_Average( ADC_Channel_TempSensor, 10 );
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ADC_val = Get_ConversionVal(ADC_val);
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val_mv = (ADC_val*3300/4096);
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return TempSensor_Volt_To_Temper(val_mv);
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}
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int16_t getDeciTemperature(void)
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{
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uint16_t ADC_val;
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s32 val_mv;
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ADC_val = Get_ADC_Average( ADC_Channel_TempSensor, 10 );
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ADC_val = Get_ConversionVal(ADC_val);
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val_mv = (ADC_val*3300/4096);
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s32 temp_x10 = TempSensor_Volt_To_Temper_x10(val_mv);
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int16_t temp16 = (int16_t)temp_x10; // store in 2 bytes
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return temp16;
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}
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s32 getVoltage(void)
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{
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uint16_t ADC_val;
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s32 val_mv;
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ADC_val = Get_ADC_Average( ADC_Channel_1, 10 );
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ADC_val = Get_ConversionVal(ADC_val);
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val_mv = (ADC_val*3300/4096);
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return val_mv;
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}
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// Helper: convert signed 24-bit int to 3 bytes (big-endian)
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void int24_to_bytes(int32_t value, uint8_t *bytes) {
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if (value < 0) value += 0x1000000; // 2's complement for 24-bit
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bytes[0] = (value >> 16) & 0xFF;
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bytes[1] = (value >> 8) & 0xFF;
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bytes[2] = value & 0xFF;
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}
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// Encode GPS into CayenneLPP payload
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void encode_gps(uint8_t channel, int32_t lat, int32_t lon, int32_t alt, uint8_t *payload) {
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payload[0] = channel;
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payload[1] = LPP_GPS; // GPS type
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//int32_t latInt = lat * 10000;
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//int32_t lonInt = lon * 10000;
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//int32_t altInt = alt * 100;
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int24_to_bytes(lat, &payload[2]);
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int24_to_bytes(lon, &payload[5]);
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int24_to_bytes(alt, &payload[8]);
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//int24_to_bytes(latInt, &payload[2]);
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//int24_to_bytes(lonInt, &payload[5]);
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//int24_to_bytes(altInt, &payload[8]);
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}
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@@ -0,0 +1,113 @@
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#ifndef TEMPERATURE_HEADER
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#define TEMPERATURE_HEADER
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/********************************** (C) COPYRIGHT *******************************
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* File Name : temperature.c
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* Author : WCH
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* Version : V1.0.0
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* Date : 2023/11/17
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* Description : Temperature program body.
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*********************************************************************************
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* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
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* Attention: This software (modified or not) and binary are used for
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* microcontroller manufactured by Nanjing Qinheng Microelectronics.
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*******************************************************************************/
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/*
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*@Note
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*Internal temperature sensor routine:
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*Through the ADC channel 16, the output voltage value and temperature value of the internal
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*temperature sensor are collected.
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*
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*/
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/* Global Variable */
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extern int16_t Calibrattion_Val;
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/*********************************************************************
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* @fn ADC_Function_Init
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*
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* @brief Initializes ADC collection.
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*
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* @return none
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*/
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void ADC_Function_Init(void);
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/*********************************************************************
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* @fn Get_ADC_Val
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*
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* @brief Returns ADCx conversion result data.
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*
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* @param ch - ADC channel.
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* ADC_Channel_0 - ADC Channel0 selected.
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* ADC_Channel_1 - ADC Channel1 selected.
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* ADC_Channel_2 - ADC Channel2 selected.
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* ADC_Channel_3 - ADC Channel3 selected.
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* ADC_Channel_4 - ADC Channel4 selected.
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* ADC_Channel_5 - ADC Channel5 selected.
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* ADC_Channel_6 - ADC Channel6 selected.
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* ADC_Channel_7 - ADC Channel7 selected.
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* ADC_Channel_8 - ADC Channel8 selected.
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* ADC_Channel_9 - ADC Channel9 selected.
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* ADC_Channel_10 - ADC Channel10 selected.
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* ADC_Channel_11 - ADC Channel11 selected.
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* ADC_Channel_12 - ADC Channel12 selected.
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* ADC_Channel_13 - ADC Channel13 selected.
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* ADC_Channel_14 - ADC Channel14 selected.
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* ADC_Channel_15 - ADC Channel15 selected.
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* ADC_Channel_16 - ADC Channel16 selected.
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* ADC_Channel_17 - ADC Channel17 selected.
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*
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* @return none
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*/
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uint16_t Get_ADC_Val(uint8_t ch);
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/*********************************************************************
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* @fn Get_ADC_Average
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*
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* @brief Returns ADCx conversion result average data.
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*
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* @param ch - ADC channel.
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* ADC_Channel_0 - ADC Channel0 selected.
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* ADC_Channel_1 - ADC Channel1 selected.
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* ADC_Channel_2 - ADC Channel2 selected.
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* ADC_Channel_3 - ADC Channel3 selected.
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* ADC_Channel_4 - ADC Channel4 selected.
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* ADC_Channel_5 - ADC Channel5 selected.
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* ADC_Channel_6 - ADC Channel6 selected.
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* ADC_Channel_7 - ADC Channel7 selected.
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* ADC_Channel_8 - ADC Channel8 selected.
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* ADC_Channel_9 - ADC Channel9 selected.
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* ADC_Channel_10 - ADC Channel10 selected.
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* ADC_Channel_11 - ADC Channel11 selected.
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* ADC_Channel_12 - ADC Channel12 selected.
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* ADC_Channel_13 - ADC Channel13 selected.
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* ADC_Channel_14 - ADC Channel14 selected.
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* ADC_Channel_15 - ADC Channel15 selected.
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* ADC_Channel_16 - ADC Channel16 selected.
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* ADC_Channel_17 - ADC Channel17 selected.
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*
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* @return val - The Data conversion value.
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*/
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uint16_t Get_ADC_Average(uint8_t ch,uint8_t times);
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/*********************************************************************
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* @fn Get_ConversionVal
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*
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* @brief Get Conversion Value.
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*
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* @param val - Sampling value
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*
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* @return val+Calibrattion_Val - Conversion Value.
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*/
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uint16_t Get_ConversionVal(int16_t val);
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int32_t getTemperature(void);
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int16_t getDeciTemperature(void);
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int32_t getVoltage(void);
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void encode_gps(uint8_t channel, int32_t lat, int32_t lon, int32_t alt, uint8_t *payload);
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#endif
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