stm32温度调节系统的风扇串口打印输出代码
时间: 2023-08-22 15:06:42 浏览: 46
好的,下面是一个简单的参考代码,用于基于 stm32 的温度调节系统中通过串口打印输出温度数据:
```c
#include "stm32f10x.h"
#include <stdio.h>
#define FAN_PIN GPIO_Pin_0
#define FAN_PORT GPIOA
#define ADC_PIN GPIO_Pin_1
#define ADC_PORT GPIOA
#define ADC_CH ADC_Channel_1
#define TEMP_THRESHOLD 30
void USART_Configuration(void);
int main(void)
{
// 初始化 GPIO 和 ADC
GPIO_InitTypeDef GPIO_InitStructure;
ADC_InitTypeDef ADC_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_ADC1, ENABLE);
GPIO_InitStructure.GPIO_Pin = FAN_PIN;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(FAN_PORT, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = ADC_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
GPIO_Init(ADC_PORT, &GPIO_InitStructure);
ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;
ADC_InitStructure.ADC_ScanConvMode = DISABLE;
ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_NbrOfChannel = 1;
ADC_Init(ADC1, &ADC_InitStructure);
ADC_RegularChannelConfig(ADC1, ADC_CH, 1, ADC_SampleTime_55Cycles5);
ADC_Cmd(ADC1, ENABLE);
ADC_ResetCalibration(ADC1);
while(ADC_GetResetCalibrationStatus(ADC1));
ADC_StartCalibration(ADC1);
while(ADC_GetCalibrationStatus(ADC1));
// 初始化串口
USART_Configuration();
while(1)
{
// 获取温度数据并输出
uint16_t adc_value = ADC_GetConversionValue(ADC1);
float temp = (float)adc_value / 4096 * 3.3 / 0.01;
char str[32];
sprintf(str, "Temperature: %.2f C\r\n", temp);
USART_SendString(str);
// 根据温度控制风扇转速
if(temp > TEMP_THRESHOLD)
{
GPIO_SetBits(FAN_PORT, FAN_PIN);
}
else
{
GPIO_ResetBits(FAN_PORT, FAN_PIN);
}
}
}
void USART_Configuration(void)
{
USART_InitTypeDef USART_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1 | RCC_APB2Periph_GPIOA, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOA, &GPIO_InitStructure);
USART_InitStructure.USART_BaudRate = 115200;
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
USART_InitStructure.USART_Parity = USART_Parity_No;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Tx;
USART_Init(USART1, &USART_InitStructure);
USART_Cmd(USART1, ENABLE);
}
void USART_SendString(char* str)
{
while(*str)
{
while(USART_GetFlagStatus(USART1, USART_FLAG_TXE) == RESET);
USART_SendData(USART1, *str++);
}
}
```
这个代码在前面的基础上添加了串口初始化和输出的功能。具体实现时,我们使用了 USART1 模块来进行串口通信,将温度数据输出到串口上,以便在上位机端进行实时监测和控制。希望这个代码能对您有所帮助!
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