support ch32v208
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gqk
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SRC_FILES := adc.c
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SRC_DIR := test
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include $(KERNEL_ROOT)/compiler.mk
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/********************************** (C) COPYRIGHT *******************************
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* File Name : main.c
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* Author : WCH
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* Version : V1.0.0
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* Date : 2021/06/06
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* Description : Main 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
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*the internal temperature sensor are collected.
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*
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*/
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#include "debug.h"
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/* Global Variable */
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s16 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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GPIO_InitTypeDef GPIO_InitStructure = {0};
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);
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RCC_ADCCLKConfig(RCC_PCLK2_Div8);
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
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GPIO_Init(GPIOA, &GPIO_InitStructure);
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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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u16 Get_ADC_Val(u8 ch)
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{
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u16 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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u16 Get_ADC_Average(u8 ch, u8 times)
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{
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u32 temp_val = 0;
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u8 t;
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u16 val;
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for(t = 0; t < times; t++) {
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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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u16 Get_ConversionVal(s16 val)
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{
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if((val + Calibrattion_Val) < 0|| val==0)
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return 0;
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if((Calibrattion_Val + val) > 4095|| val==4095)
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return 4095;
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return (val + Calibrattion_Val);
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}
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@@ -0,0 +1,3 @@
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SRC_FILES := internal_temperature.c
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include $(KERNEL_ROOT)/compiler.mk
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+36
@@ -0,0 +1,36 @@
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/*********************************************************************
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* @fn main
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*
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* @brief Main program.
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*
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* @return none
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*/
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#include "adc.h"
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#include "debug.h"
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#include "shell.h"
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#include "xs_base.h"
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extern s16 Calibrattion_Val;
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int internal_temperature(int argc, char *argv[]) {
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u16 ADC_val;
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s32 val_mv;
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KPrintf("CalibrattionValue:%d\n", Calibrattion_Val);
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ADC_val = Get_ADC_Average(ADC_Channel_TempSensor, 10);
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Delay_Ms(500);
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ADC_val = Get_ConversionVal(ADC_val);
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KPrintf("ADC-Val:%04d\r\n", ADC_val);
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val_mv = (ADC_val * 3300 / 4096); // ADC_val以3.3V为基准，4096为ADC分辨率
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KPrintf("mv-T-%d,%0d\n", val_mv, TempSensor_Volt_To_Temper(val_mv));
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Delay_Ms(2);
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return 0;
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}
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SHELL_EXPORT_CMD(SHELL_CMD_PERMISSION(0) | SHELL_CMD_TYPE(SHELL_TYPE_CMD_MAIN),
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internal_temperature, internal_temperature,
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test internal temperature sensor);
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