STM32L010を使た、MbedでHALのアナログ入力 (約5Kバイト)
目的
最軽量化
PA0(6ピン)から入力してPA4(10ピン)でLチカする。
x Mbedのリビジョンは、143
#include "mbed.h"
//DigitalOut myled(PA_4);
//AnalogIn adc_vbat(PA_0);
int main() {
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_ADC1_CLK_ENABLE();
GPIO_InitTypeDef GPIO_InitStruct = {0};
GPIO_InitStruct.Pin = GPIO_PIN_0;
GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_4;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
ADC_HandleTypeDef hadc;
hadc.Instance = ADC1;
hadc.Init.OversamplingMode = DISABLE;
hadc.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV1;
hadc.Init.Resolution = ADC_RESOLUTION_12B;
hadc.Init.SamplingTime = ADC_SAMPLETIME_1CYCLE_5;
hadc.Init.ScanConvMode = ADC_SCAN_DIRECTION_FORWARD;
hadc.Init.DataAlign = ADC_DATAALIGN_RIGHT;
hadc.Init.ContinuousConvMode = DISABLE;
hadc.Init.DiscontinuousConvMode = DISABLE;
hadc.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
hadc.Init.ExternalTrigConv = ADC_SOFTWARE_START;
hadc.Init.DMAContinuousRequests = DISABLE;
hadc.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
hadc.Init.Overrun = ADC_OVR_DATA_PRESERVED;
hadc.Init.LowPowerAutoWait = DISABLE;
hadc.Init.LowPowerFrequencyMode = ENABLE;
hadc.Init.LowPowerAutoPowerOff = DISABLE;
HAL_ADC_Init(&hadc);
ADC_ChannelConfTypeDef sConfig = {0};
sConfig.Channel = ADC_CHANNEL_0;
sConfig.Rank = ADC_RANK_CHANNEL_NUMBER;
HAL_ADC_ConfigChannel(&hadc, &sConfig);
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);
int a=0;
while(1) {
HAL_ADC_Start(&hadc);
if( HAL_ADC_PollForConversion(&hadc, 1000) == HAL_OK )
{
a = HAL_ADC_GetValue(&hadc);
}
HAL_ADC_Stop(&hadc);
if(a > 500) {
//myled = 1;
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET);
} else {
//myled = 0;
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);
}
//if(a==0){a=1;}else{a=0;}
//wait_ms(500);
}
}
Author And Source
この問題について(STM32L010を使た、MbedでHALのアナログ入力 (約5Kバイト)), 我々は、より多くの情報をここで見つけました https://qiita.com/caa45040/items/2ccfba12544d14fec4b3著者帰属:元の著者の情報は、元のURLに含まれています。著作権は原作者に属する。
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