STM32超声波——HC_SR04

2023-12-11 20:44
文章标签 stm32 超声波 sr04 hc

本文主要是介绍STM32超声波——HC_SR04，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

文章目录

  • 一.超声波图片
  • 二.时序图
  • 三.超声波流程
  • 四.单位换算
  • 五.取余计算
  • 六.换算距离
  • 七.超声波代码

一.超声波图片

测量距离：2cm——400cm
在这里插入图片描述

二.时序图

(1).以下时序图要先提供一个至少10us的脉冲触发信号，告诉单片机我准备好了，然后该超声波模块内部将发出8个40Khz的的周期电平并检测回波，这时候是超声波模块发送的波，检测能不能发送超声波，与单片机无关，所以代码就不用写写这里的代码，然后一旦检测到有回波信号后则向单片机输出回响信号，高电平持续的时间就是超声波发出波到返回的时间。

(2).以超声波为主体，Trig是接受触发信号RX，Echo是发送超声波TX。

在这里插入图片描述

三.超声波流程

在这里插入图片描述

四.单位换算

在这里插入图片描述

五.取余计算

在这里插入图片描述

六.换算距离

从下图手册可知，我们距离s可以等于时间微妙us/58，单位是cm，所以把定时器设置成1ms，在然后在定时器中断里面设置一个标志位，进去一次就是1ms，然后标志位在乘于一个1000，就是把1ms换算成1000us了，然后这个是来回的时间，但是要注意超声波回来的最后一刻，定时器没有达到ARR自动重装值的话，就结束了，这个也要算进去时间，就是TIM_GetCounter，然后t得到之后，t需要/2，因为是来回的时间，然后因为声速是340m/s，需要把us换成s，就是t * 0.00001/2=t/2000000，然后340m/s需要换成cm，也就是340 * 100，所以s=t/2000000 * 340 * 100，最后换算就是t/58。
在这里插入图片描述

七.超声波代码

main.c

#include "stm32f10x.h"                  // Device header
#include "Delay.h"
#include "Buzzer.h"
#include "OLED.h"float distance;int main()
{Ultrasonic_Init();OLED_Init();OLED_ShowString(1,1,"distance");OLED_ShowString(2,1,"000.000cm");while(1){distance=Ultrasonic_Getdistance();OLED_ShowNum(2,1,distance,3);//最多3位，因为最高测量4m，也就是400cmOLED_ShowNum(2,5,(uint16_t)(distance*1000)%1000,3);//小数也是3位，然后这里OLED_ShowNum是只显示整数，所以需要把float类型强转int类型Delay_ms(66);//周期至少60ms}
}

Buzzer.c

#include "stm32f10x.h"                  // Device header
#include "Delay.h"
#include "Buzzer.h"uint32_t Ultrasonic_Num=0;						// 计数值void Ultrasonic_Port()
{RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE);GPIO_InitTypeDef GPIO_InitStructure;//GPIOA0--RX--TrigGPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;  //推挽输出 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_Init(GPIOA,&GPIO_InitStructure);//GPIOA1---TX--EchoGPIO_InitStructure.GPIO_Pin = GPIO_Pin_1;GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;GPIO_Init(GPIOA,&GPIO_InitStructure);}void Ultrasonic_TIM(uint16_t arr,uint16_t psc)
{RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3,ENABLE);TIM_TimeBaseInitTypeDef TIM_InitStructure;TIM_InitStructure.TIM_Period = arr-1;TIM_InitStructure.TIM_Prescaler = psc-1;TIM_InitStructure.TIM_CounterMode = TIM_CounterMode_Up;TIM_InitStructure.TIM_ClockDivision = TIM_CKD_DIV1;TIM_InitStructure.TIM_RepetitionCounter = 0;TIM_TimeBaseInit(TIM3,&TIM_InitStructure);NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);NVIC_InitTypeDef NVIC_InitStructure;NVIC_InitStructure.NVIC_IRQChannel = TIM3_IRQn;NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;NVIC_InitStructure.NVIC_IRQChannelSubPriority = 8;NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;NVIC_Init(&NVIC_InitStructure);TIM_ITConfig(TIM3,TIM_IT_Update,ENABLE);TIM_Cmd(TIM3, DISABLE);
}void Ultrasonic_Init()
{Ultrasonic_Port();Ultrasonic_TIM(1000,72);
}//触发超声波
void Ultrasonic_Start()
{INC = 1;           Delay_us(12);//Trig给高电平12us INC = 0;
}//测量时间
int Ultrasonic_GetTime(void)
{uint32_t t;//1ms*1000=1000us,这里化成ust = Ultrasonic_Num * 1000; //t=t+TIM_GetCounter(TIM3),意思是：t是上面获取的定时器爆表后的时间,爆表一次就是1000us,也就是ARR为1000时就是1000us,当然如果超声波在下一次计时没有爆表就结束了，//假如此时CNT=900,那我们假如Ultrasonic_Num=1，就是1000us，然后t=1000+900=1900ust +=TIM_GetCounter(TIM3);return t;
}//测量距离
float Ultrasonic_Getdistance(void)
{int i =0;uint32_t t = 0;float distance = 0;float sum = 0;while(i!=5)			//五次测量{Ultrasonic_Start();				//触发超声波TIM_SetCounter(TIM3,0);Ultrasonic_Num  = 0;			 //定时器清0while(IN0 == 0);TIM_Cmd(TIM3,ENABLE);     //启动定时器i++;while(IN0 == 1);TIM_Cmd(TIM3, DISABLE);		//关闭定时器t = Ultrasonic_GetTime(); //获取时间distance =(float)t /58;  //测量距离sum += distance; 				//五次测量总和}distance = (sum/5);       //取平均值return distance;
}void TIM3_IRQHandler(void)//0.001s=1ms
{if(TIM_GetITStatus(TIM3,TIM_IT_Update) == SET){Ultrasonic_Num++; //计数值+1}TIM_ClearITPendingBit(TIM3,TIM_IT_Update);
}

Buzzer.h

#include "stm32f10x.h"                  // Device header
#include "sys.h"#ifndef __BUZZER_H
#define __BUZZER_H#define INC PAout(0)
#define IN0 PAin(1)void Ultrasonic_Init(void);
float Ultrasonic_Getdistance(void);#endif

sys.c

sys.h

#ifndef __SYS_H
#define __SYS_H	
#include "stm32f10x.h"//位带操作,实现51类似的GPIO控制功能
//具体实现思想,参考<<CM3权威指南>>第五章(87页~92页).
//IO口操作宏定义
#define BITBAND(addr, bitnum) ((addr & 0xF0000000)+0x2000000+((addr &0xFFFFF)<<5)+(bitnum<<2)) 
#define MEM_ADDR(addr)  *((volatile unsigned long  *)(addr)) 
#define BIT_ADDR(addr, bitnum)   MEM_ADDR(BITBAND(addr, bitnum)) 
//IO口地址映射
#define GPIOA_ODR_Addr    (GPIOA_BASE+12) //0x4001080C 
#define GPIOB_ODR_Addr    (GPIOB_BASE+12) //0x40010C0C 
#define GPIOC_ODR_Addr    (GPIOC_BASE+12) //0x4001100C 
#define GPIOD_ODR_Addr    (GPIOD_BASE+12) //0x4001140C 
#define GPIOE_ODR_Addr    (GPIOE_BASE+12) //0x4001180C 
#define GPIOF_ODR_Addr    (GPIOF_BASE+12) //0x40011A0C    
#define GPIOG_ODR_Addr    (GPIOG_BASE+12) //0x40011E0C    #define GPIOA_IDR_Addr    (GPIOA_BASE+8) //0x40010808 
#define GPIOB_IDR_Addr    (GPIOB_BASE+8) //0x40010C08 
#define GPIOC_IDR_Addr    (GPIOC_BASE+8) //0x40011008 
#define GPIOD_IDR_Addr    (GPIOD_BASE+8) //0x40011408 
#define GPIOE_IDR_Addr    (GPIOE_BASE+8) //0x40011808 
#define GPIOF_IDR_Addr    (GPIOF_BASE+8) //0x40011A08 
#define GPIOG_IDR_Addr    (GPIOG_BASE+8) //0x40011E08 //IO口操作,只对单一的IO口!
//确保n的值小于16!
#define PAout(n)   BIT_ADDR(GPIOA_ODR_Addr,n)  //输出 
#define PAin(n)    BIT_ADDR(GPIOA_IDR_Addr,n)  //输入 #define PBout(n)   BIT_ADDR(GPIOB_ODR_Addr,n)  //输出 
#define PBin(n)    BIT_ADDR(GPIOB_IDR_Addr,n)  //输入 #define PCout(n)   BIT_ADDR(GPIOC_ODR_Addr,n)  //输出 
#define PCin(n)    BIT_ADDR(GPIOC_IDR_Addr,n)  //输入 #define PDout(n)   BIT_ADDR(GPIOD_ODR_Addr,n)  //输出 
#define PDin(n)    BIT_ADDR(GPIOD_IDR_Addr,n)  //输入 #define PEout(n)   BIT_ADDR(GPIOE_ODR_Addr,n)  //输出 
#define PEin(n)    BIT_ADDR(GPIOE_IDR_Addr,n)  //输入#define PFout(n)   BIT_ADDR(GPIOF_ODR_Addr,n)  //输出 
#define PFin(n)    BIT_ADDR(GPIOF_IDR_Addr,n)  //输入#define PGout(n)   BIT_ADDR(GPIOG_ODR_Addr,n)  //输出 
#define PGin(n)    BIT_ADDR(GPIOG_IDR_Addr,n)  //输入#endif

OLED.c

#include "stm32f10x.h"
#include "OLED_Font.h"/*引脚配置*/
#define OLED_W_SCL(x)		GPIO_WriteBit(GPIOB, GPIO_Pin_12, (BitAction)(x))
#define OLED_W_SDA(x)		GPIO_WriteBit(GPIOB, GPIO_Pin_13, (BitAction)(x))/*引脚初始化*/
void OLED_I2C_Init(void)
{GPIO_InitTypeDef GPIO_InitStructure;RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_OD;GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;GPIO_Init(GPIOB, &GPIO_InitStructure);GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13;GPIO_Init(GPIOB, &GPIO_InitStructure);OLED_W_SCL(1);OLED_W_SDA(1);
}/*** @brief  I2C开始* @param  无* @retval 无*/
void OLED_I2C_Start(void)
{OLED_W_SDA(1);OLED_W_SCL(1);OLED_W_SDA(0);OLED_W_SCL(0);
}/*** @brief  I2C停止* @param  无* @retval 无*/
void OLED_I2C_Stop(void)
{OLED_W_SDA(0);OLED_W_SCL(1);OLED_W_SDA(1);
}/*** @brief  I2C发送一个字节* @param  Byte 要发送的一个字节* @retval 无*/
void OLED_I2C_SendByte(uint8_t Byte)
{uint8_t i;for (i = 0; i < 8; i++){OLED_W_SDA(Byte & (0x80 >> i));OLED_W_SCL(1);OLED_W_SCL(0);}OLED_W_SCL(1);	//额外的一个时钟，不处理应答信号OLED_W_SCL(0);
}/*** @brief  OLED写命令* @param  Command 要写入的命令* @retval 无*/
void OLED_WriteCommand(uint8_t Command)
{OLED_I2C_Start();OLED_I2C_SendByte(0x78);		//从机地址OLED_I2C_SendByte(0x00);		//写命令OLED_I2C_SendByte(Command); OLED_I2C_Stop();
}/*** @brief  OLED写数据* @param  Data 要写入的数据* @retval 无*/
void OLED_WriteData(uint8_t Data)
{OLED_I2C_Start();OLED_I2C_SendByte(0x78);		//从机地址OLED_I2C_SendByte(0x40);		//写数据OLED_I2C_SendByte(Data);OLED_I2C_Stop();
}/*** @brief  OLED设置光标位置* @param  Y 以左上角为原点，向下方向的坐标，范围：0~7* @param  X 以左上角为原点，向右方向的坐标，范围：0~127* @retval 无*/
void OLED_SetCursor(uint8_t Y, uint8_t X)
{OLED_WriteCommand(0xB0 | Y);					//设置Y位置OLED_WriteCommand(0x10 | ((X & 0xF0) >> 4));	//设置X位置高4位OLED_WriteCommand(0x00 | (X & 0x0F));			//设置X位置低4位
}/*** @brief  OLED清屏* @param  无* @retval 无*/
void OLED_Clear(void)
{  uint8_t i, j;for (j = 0; j < 8; j++){OLED_SetCursor(j, 0);for(i = 0; i < 128; i++){OLED_WriteData(0x00);}}
}/*** @brief  OLED显示一个字符* @param  Line 行位置，范围：1~4* @param  Column 列位置，范围：1~16* @param  Char 要显示的一个字符，范围：ASCII可见字符* @retval 无*/
void OLED_ShowChar(uint8_t Line, uint8_t Column, char Char)
{      	uint8_t i;OLED_SetCursor((Line - 1) * 2, (Column - 1) * 8);		//设置光标位置在上半部分for (i = 0; i < 8; i++){OLED_WriteData(OLED_F8x16[Char - ' '][i]);			//显示上半部分内容}OLED_SetCursor((Line - 1) * 2 + 1, (Column - 1) * 8);	//设置光标位置在下半部分for (i = 0; i < 8; i++){OLED_WriteData(OLED_F8x16[Char - ' '][i + 8]);		//显示下半部分内容}
}/*** @brief  OLED显示字符串* @param  Line 起始行位置，范围：1~4* @param  Column 起始列位置，范围：1~16* @param  String 要显示的字符串，范围：ASCII可见字符* @retval 无*/
void OLED_ShowString(uint8_t Line, uint8_t Column, char *String)
{uint8_t i;for (i = 0; String[i] != '\0'; i++){OLED_ShowChar(Line, Column + i, String[i]);}
}/*** @brief  OLED次方函数* @retval 返回值等于X的Y次方*/
uint32_t OLED_Pow(uint32_t X, uint32_t Y)
{uint32_t Result = 1;while (Y--){Result *= X;}return Result;
}/*** @brief  OLED显示数字（十进制，正数）* @param  Line 起始行位置，范围：1~4* @param  Column 起始列位置，范围：1~16* @param  Number 要显示的数字，范围：0~4294967295* @param  Length 要显示数字的长度，范围：1~10* @retval 无*/
void OLED_ShowNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length)
{uint8_t i;for (i = 0; i < Length; i++)							{OLED_ShowChar(Line, Column + i, Number / OLED_Pow(10, Length - i - 1) % 10 + '0');}
}/*** @brief  OLED显示数字（十进制，带符号数）* @param  Line 起始行位置，范围：1~4* @param  Column 起始列位置，范围：1~16* @param  Number 要显示的数字，范围：-2147483648~2147483647* @param  Length 要显示数字的长度，范围：1~10* @retval 无*/
void OLED_ShowSignedNum(uint8_t Line, uint8_t Column, int32_t Number, uint8_t Length)
{uint8_t i;uint32_t Number1;if (Number >= 0){OLED_ShowChar(Line, Column, '+');Number1 = Number;}else{OLED_ShowChar(Line, Column, '-');Number1 = -Number;}for (i = 0; i < Length; i++)							{OLED_ShowChar(Line, Column + i + 1, Number1 / OLED_Pow(10, Length - i - 1) % 10 + '0');}
}/*** @brief  OLED显示数字（十六进制，正数）* @param  Line 起始行位置，范围：1~4* @param  Column 起始列位置，范围：1~16* @param  Number 要显示的数字，范围：0~0xFFFFFFFF* @param  Length 要显示数字的长度，范围：1~8* @retval 无*/
void OLED_ShowHexNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length)
{uint8_t i, SingleNumber;for (i = 0; i < Length; i++)							{SingleNumber = Number / OLED_Pow(16, Length - i - 1) % 16;if (SingleNumber < 10){OLED_ShowChar(Line, Column + i, SingleNumber + '0');}else{OLED_ShowChar(Line, Column + i, SingleNumber - 10 + 'A');}}
}/*** @brief  OLED显示数字（二进制，正数）* @param  Line 起始行位置，范围：1~4* @param  Column 起始列位置，范围：1~16* @param  Number 要显示的数字，范围：0~1111 1111 1111 1111* @param  Length 要显示数字的长度，范围：1~16* @retval 无*/
void OLED_ShowBinNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length)
{uint8_t i;for (i = 0; i < Length; i++)							{OLED_ShowChar(Line, Column + i, Number / OLED_Pow(2, Length - i - 1) % 2 + '0');}
}/*** @brief  OLED初始化* @param  无* @retval 无*/
void OLED_Init(void)
{uint32_t i, j;for (i = 0; i < 1000; i++)			//上电延时{for (j = 0; j < 1000; j++);}OLED_I2C_Init();			//端口初始化OLED_WriteCommand(0xAE);	//关闭显示OLED_WriteCommand(0xD5);	//设置显示时钟分频比/振荡器频率OLED_WriteCommand(0x80);OLED_WriteCommand(0xA8);	//设置多路复用率OLED_WriteCommand(0x3F);OLED_WriteCommand(0xD3);	//设置显示偏移OLED_WriteCommand(0x00);OLED_WriteCommand(0x40);	//设置显示开始行OLED_WriteCommand(0xA1);	//设置左右方向，0xA1正常 0xA0左右反置OLED_WriteCommand(0xC8);	//设置上下方向，0xC8正常 0xC0上下反置OLED_WriteCommand(0xDA);	//设置COM引脚硬件配置OLED_WriteCommand(0x12);OLED_WriteCommand(0x81);	//设置对比度控制OLED_WriteCommand(0xCF);OLED_WriteCommand(0xD9);	//设置预充电周期OLED_WriteCommand(0xF1);OLED_WriteCommand(0xDB);	//设置VCOMH取消选择级别OLED_WriteCommand(0x30);OLED_WriteCommand(0xA4);	//设置整个显示打开/关闭OLED_WriteCommand(0xA6);	//设置正常/倒转显示OLED_WriteCommand(0x8D);	//设置充电泵OLED_WriteCommand(0x14);OLED_WriteCommand(0xAF);	//开启显示OLED_Clear();				//OLED清屏
}

OLED.h

#ifndef __OLED_H
#define __OLED_H#include "stm32f10x.h"                  // Device headervoid OLED_Init(void);
void OLED_Clear(void);
void OLED_ShowChar(uint8_t Line, uint8_t Column, char Char);
void OLED_ShowString(uint8_t Line, uint8_t Column, char *String);
void OLED_ShowNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length);
void OLED_ShowSignedNum(uint8_t Line, uint8_t Column, int32_t Number, uint8_t Length);
void OLED_ShowHexNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length);
void OLED_ShowBinNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length);#endif

OLED_Font.h

#ifndef __OLED_FONT_H
#define __OLED_FONT_H#include "stm32f10x.h"                  // Device header/*OLED字模库，宽8像素，高16像素*/
const uint8_t OLED_F8x16[][16]=
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//  00x00,0x00,0x00,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x33,0x30,0x00,0x00,0x00,//! 10x00,0x10,0x0C,0x06,0x10,0x0C,0x06,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//" 20x40,0xC0,0x78,0x40,0xC0,0x78,0x40,0x00,0x04,0x3F,0x04,0x04,0x3F,0x04,0x04,0x00,//# 30x00,0x70,0x88,0xFC,0x08,0x30,0x00,0x00,0x00,0x18,0x20,0xFF,0x21,0x1E,0x00,0x00,//$ 40xF0,0x08,0xF0,0x00,0xE0,0x18,0x00,0x00,0x00,0x21,0x1C,0x03,0x1E,0x21,0x1E,0x00,//% 50x00,0xF0,0x08,0x88,0x70,0x00,0x00,0x00,0x1E,0x21,0x23,0x24,0x19,0x27,0x21,0x10,//& 60x10,0x16,0x0E,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//' 70x00,0x00,0x00,0xE0,0x18,0x04,0x02,0x00,0x00,0x00,0x00,0x07,0x18,0x20,0x40,0x00,//( 80x00,0x02,0x04,0x18,0xE0,0x00,0x00,0x00,0x00,0x40,0x20,0x18,0x07,0x00,0x00,0x00,//) 90x40,0x40,0x80,0xF0,0x80,0x40,0x40,0x00,0x02,0x02,0x01,0x0F,0x01,0x02,0x02,0x00,//* 100x00,0x00,0x00,0xF0,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x1F,0x01,0x01,0x01,0x00,//+ 110x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xB0,0x70,0x00,0x00,0x00,0x00,0x00,//, 120x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01,//- 130x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,0x00,0x00,//. 140x00,0x00,0x00,0x00,0x80,0x60,0x18,0x04,0x00,0x60,0x18,0x06,0x01,0x00,0x00,0x00,/// 150x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x0F,0x10,0x20,0x20,0x10,0x0F,0x00,//0 160x00,0x10,0x10,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//1 170x00,0x70,0x08,0x08,0x08,0x88,0x70,0x00,0x00,0x30,0x28,0x24,0x22,0x21,0x30,0x00,//2 180x00,0x30,0x08,0x88,0x88,0x48,0x30,0x00,0x00,0x18,0x20,0x20,0x20,0x11,0x0E,0x00,//3 190x00,0x00,0xC0,0x20,0x10,0xF8,0x00,0x00,0x00,0x07,0x04,0x24,0x24,0x3F,0x24,0x00,//4 200x00,0xF8,0x08,0x88,0x88,0x08,0x08,0x00,0x00,0x19,0x21,0x20,0x20,0x11,0x0E,0x00,//5 210x00,0xE0,0x10,0x88,0x88,0x18,0x00,0x00,0x00,0x0F,0x11,0x20,0x20,0x11,0x0E,0x00,//6 220x00,0x38,0x08,0x08,0xC8,0x38,0x08,0x00,0x00,0x00,0x00,0x3F,0x00,0x00,0x00,0x00,//7 230x00,0x70,0x88,0x08,0x08,0x88,0x70,0x00,0x00,0x1C,0x22,0x21,0x21,0x22,0x1C,0x00,//8 240x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x00,0x31,0x22,0x22,0x11,0x0F,0x00,//9 250x00,0x00,0x00,0xC0,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,//: 260x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x60,0x00,0x00,0x00,0x00,//; 270x00,0x00,0x80,0x40,0x20,0x10,0x08,0x00,0x00,0x01,0x02,0x04,0x08,0x10,0x20,0x00,//< 280x40,0x40,0x40,0x40,0x40,0x40,0x40,0x00,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x00,//= 290x00,0x08,0x10,0x20,0x40,0x80,0x00,0x00,0x00,0x20,0x10,0x08,0x04,0x02,0x01,0x00,//> 300x00,0x70,0x48,0x08,0x08,0x08,0xF0,0x00,0x00,0x00,0x00,0x30,0x36,0x01,0x00,0x00,//? 310xC0,0x30,0xC8,0x28,0xE8,0x10,0xE0,0x00,0x07,0x18,0x27,0x24,0x23,0x14,0x0B,0x00,//@ 320x00,0x00,0xC0,0x38,0xE0,0x00,0x00,0x00,0x20,0x3C,0x23,0x02,0x02,0x27,0x38,0x20,//A 330x08,0xF8,0x88,0x88,0x88,0x70,0x00,0x00,0x20,0x3F,0x20,0x20,0x20,0x11,0x0E,0x00,//B 340xC0,0x30,0x08,0x08,0x08,0x08,0x38,0x00,0x07,0x18,0x20,0x20,0x20,0x10,0x08,0x00,//C 350x08,0xF8,0x08,0x08,0x08,0x10,0xE0,0x00,0x20,0x3F,0x20,0x20,0x20,0x10,0x0F,0x00,//D 360x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,0x20,0x3F,0x20,0x20,0x23,0x20,0x18,0x00,//E 370x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,0x20,0x3F,0x20,0x00,0x03,0x00,0x00,0x00,//F 380xC0,0x30,0x08,0x08,0x08,0x38,0x00,0x00,0x07,0x18,0x20,0x20,0x22,0x1E,0x02,0x00,//G 390x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,0x20,0x3F,0x21,0x01,0x01,0x21,0x3F,0x20,//H 400x00,0x08,0x08,0xF8,0x08,0x08,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//I 410x00,0x00,0x08,0x08,0xF8,0x08,0x08,0x00,0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,0x00,//J 420x08,0xF8,0x88,0xC0,0x28,0x18,0x08,0x00,0x20,0x3F,0x20,0x01,0x26,0x38,0x20,0x00,//K 430x08,0xF8,0x08,0x00,0x00,0x00,0x00,0x00,0x20,0x3F,0x20,0x20,0x20,0x20,0x30,0x00,//L 440x08,0xF8,0xF8,0x00,0xF8,0xF8,0x08,0x00,0x20,0x3F,0x00,0x3F,0x00,0x3F,0x20,0x00,//M 450x08,0xF8,0x30,0xC0,0x00,0x08,0xF8,0x08,0x20,0x3F,0x20,0x00,0x07,0x18,0x3F,0x00,//N 460xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,0x0F,0x10,0x20,0x20,0x20,0x10,0x0F,0x00,//O 470x08,0xF8,0x08,0x08,0x08,0x08,0xF0,0x00,0x20,0x3F,0x21,0x01,0x01,0x01,0x00,0x00,//P 480xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,0x0F,0x18,0x24,0x24,0x38,0x50,0x4F,0x00,//Q 490x08,0xF8,0x88,0x88,0x88,0x88,0x70,0x00,0x20,0x3F,0x20,0x00,0x03,0x0C,0x30,0x20,//R 500x00,0x70,0x88,0x08,0x08,0x08,0x38,0x00,0x00,0x38,0x20,0x21,0x21,0x22,0x1C,0x00,//S 510x18,0x08,0x08,0xF8,0x08,0x08,0x18,0x00,0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00,//T 520x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00,//U 530x08,0x78,0x88,0x00,0x00,0xC8,0x38,0x08,0x00,0x00,0x07,0x38,0x0E,0x01,0x00,0x00,//V 540xF8,0x08,0x00,0xF8,0x00,0x08,0xF8,0x00,0x03,0x3C,0x07,0x00,0x07,0x3C,0x03,0x00,//W 550x08,0x18,0x68,0x80,0x80,0x68,0x18,0x08,0x20,0x30,0x2C,0x03,0x03,0x2C,0x30,0x20,//X 560x08,0x38,0xC8,0x00,0xC8,0x38,0x08,0x00,0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00,//Y 570x10,0x08,0x08,0x08,0xC8,0x38,0x08,0x00,0x20,0x38,0x26,0x21,0x20,0x20,0x18,0x00,//Z 580x00,0x00,0x00,0xFE,0x02,0x02,0x02,0x00,0x00,0x00,0x00,0x7F,0x40,0x40,0x40,0x00,//[ 590x00,0x0C,0x30,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x06,0x38,0xC0,0x00,//\ 600x00,0x02,0x02,0x02,0xFE,0x00,0x00,0x00,0x00,0x40,0x40,0x40,0x7F,0x00,0x00,0x00,//] 610x00,0x00,0x04,0x02,0x02,0x02,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//^ 620x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,//_ 630x00,0x02,0x02,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//` 640x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x19,0x24,0x22,0x22,0x22,0x3F,0x20,//a 650x08,0xF8,0x00,0x80,0x80,0x00,0x00,0x00,0x00,0x3F,0x11,0x20,0x20,0x11,0x0E,0x00,//b 660x00,0x00,0x00,0x80,0x80,0x80,0x00,0x00,0x00,0x0E,0x11,0x20,0x20,0x20,0x11,0x00,//c 670x00,0x00,0x00,0x80,0x80,0x88,0xF8,0x00,0x00,0x0E,0x11,0x20,0x20,0x10,0x3F,0x20,//d 680x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x1F,0x22,0x22,0x22,0x22,0x13,0x00,//e 690x00,0x80,0x80,0xF0,0x88,0x88,0x88,0x18,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//f 700x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x6B,0x94,0x94,0x94,0x93,0x60,0x00,//g 710x08,0xF8,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20,//h 720x00,0x80,0x98,0x98,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//i 730x00,0x00,0x00,0x80,0x98,0x98,0x00,0x00,0x00,0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,//j 740x08,0xF8,0x00,0x00,0x80,0x80,0x80,0x00,0x20,0x3F,0x24,0x02,0x2D,0x30,0x20,0x00,//k 750x00,0x08,0x08,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//l 760x80,0x80,0x80,0x80,0x80,0x80,0x80,0x00,0x20,0x3F,0x20,0x00,0x3F,0x20,0x00,0x3F,//m 770x80,0x80,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20,//n 780x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00,//o 790x80,0x80,0x00,0x80,0x80,0x00,0x00,0x00,0x80,0xFF,0xA1,0x20,0x20,0x11,0x0E,0x00,//p 800x00,0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x0E,0x11,0x20,0x20,0xA0,0xFF,0x80,//q 810x80,0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x20,0x20,0x3F,0x21,0x20,0x00,0x01,0x00,//r 820x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x33,0x24,0x24,0x24,0x24,0x19,0x00,//s 830x00,0x80,0x80,0xE0,0x80,0x80,0x00,0x00,0x00,0x00,0x00,0x1F,0x20,0x20,0x00,0x00,//t 840x80,0x80,0x00,0x00,0x00,0x80,0x80,0x00,0x00,0x1F,0x20,0x20,0x20,0x10,0x3F,0x20,//u 850x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,0x00,0x01,0x0E,0x30,0x08,0x06,0x01,0x00,//v 860x80,0x80,0x00,0x80,0x00,0x80,0x80,0x80,0x0F,0x30,0x0C,0x03,0x0C,0x30,0x0F,0x00,//w 870x00,0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x31,0x2E,0x0E,0x31,0x20,0x00,//x 880x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,0x80,0x81,0x8E,0x70,0x18,0x06,0x01,0x00,//y 890x00,0x80,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x21,0x30,0x2C,0x22,0x21,0x30,0x00,//z 900x00,0x00,0x00,0x00,0x80,0x7C,0x02,0x02,0x00,0x00,0x00,0x00,0x00,0x3F,0x40,0x40,//{ 910x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,//| 920x00,0x02,0x02,0x7C,0x80,0x00,0x00,0x00,0x00,0x40,0x40,0x3F,0x00,0x00,0x00,0x00,//} 930x00,0x06,0x01,0x01,0x02,0x02,0x04,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//~ 94
};#endif

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文章目录 前言资料获取设计介绍功能介绍具体实现截图参考文献设计获取 前言 💗博主介绍：✌全网粉丝10W+,CSDN特邀作者、博客专家、CSDN新星计划导师，一名热衷于单片机技术探索与分享的博主、专注于 精通51/STM32/MSP430/AVR等单片机设计 主要对象是咱们电子相关专业的大学生，希望您们都共创辉煌！✌💗 👇🏻 精彩专栏 推荐订阅👇🏻 单片机设计精品
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STM32的使用方法一

STM32的使用方法一

注:我采用的是STM32F103RC芯片、相应的电路图和STM32CubeIDE软件这是在STM32CubeIDE软件定义芯片后，所给的必要的代码逻辑，加上了注释 #include "main.h"/* Private variables ---------------------------------------------------------*//* Private function
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STM32 HAL CAN通讯 实操

STM32 HAL CAN通讯 实操

1、简介 相比于串口通讯，对于刚接触CAN通讯的小白来说，CAN通讯相对复杂，看各种视频、帖子理论，总是一知半解。本次通过傻瓜式操作，先实现CAN通讯的交互，以提高小白的信心，也便于自己复习观看。本次以STM32CubeMX进行初始化配置，通过Keil 5软件进行软件设计，通过CAN盒实现进行数据的交互。该流程实际以STM32F0、F1、F3、F4、F7实测好用（理论上都适用），这三种型号单片机
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我在高职教STM32——准备HAL库工程模板（1）

我在高职教STM32——准备HAL库工程模板（1）

新学期开学在即，又要给学生上 STM32 嵌入式课程了。这课上了多年了，一直用的都是标准库来开发，已经驾轻就熟了。人就是这样，有了自己熟悉的舒适圈，就很难做出改变，老师上课也是如此，排斥新课和不熟悉的内容。显然，STM32 的开发，HAL 库已是主流，自己其实也在使用，只不过更换库就意味着教学内容有很大变化，自己也就迟迟没有迈出调整这一步。现在，是时候做出变化了，笔者计划保持教学项
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