对射式红外传感器计次旋转编码器计次

EXTI外部中断系统

• 中断：在主程序运行过程中，出现了特定的中断触发条件（中断源），使得CPU暂停当前正在运行的程序，转而去处理中断程序，处理完成后又返回原来被暂停的位置继续运行

• 中断优先级：当有多个中断源同时申请中断时，CPU会根据中断源的轻重缓急进行裁决，优先响应更加紧急的中断源

• 中断嵌套：当一个中断程序正在运行时，又有新的更高优先级的中断源申请中断，CPU再次暂停当前中断程序，转而去处理新的中断程序，处理完成后依次进行返回

STM32中断

• 68个可屏蔽中断通道，包含EXTI、TIM、ADC、USART、SPI、I2C、RTC等多个外设

• 使用NVIC统一管理中断，每个中断通道都拥有16个可编程的优先等级，可对优先级进行分组，进一步设置抢占优先级和响应优先级

NVIC基本框架

NVIC优先级分组

• NVIC的中断优先级由优先级寄存器的4位（0~15）决定，这4位可以进行切分，分为高n位的抢占优先级和低4-n位的响应优先级
• 抢占优先级高的可以中断嵌套，响应优先级高的可以优先排队，抢占优先级和响应优先级均相同的按中断号排队
• 值越小，优先级越高

EXTI简介

• EXTI（Extern Interrupt）外部中断
• EXTI可以监测指定GPIO口的电平信号，当其指定的GPIO口产生电平变化时，EXTI将立即向NVIC发出中断申请，经过NVIC裁决后即可中断CPU主程序，使CPU执行EXTI对应的中断程序
• 支持的触发方式：上升沿/下降沿/双边沿/软件触发
• 支持的GPIO口：所有GPIO口，但相同的Pin不能同时触发中断
• 通道数：16个GPIO_Pin，外加PVD输出、RTC闹钟、USB唤醒、以太网唤醒
• 触发响应方式：中断响应/事件响应

EXTI基本框架

AFIO复用IO口

• AFIO主要用于引脚复用功能的选择和重定义

• 在STM32中，AFIO主要完成两个任务：复用功能引脚重映射、中断引脚选择
  

EXTI框图

对射式红外传感器计次

接线图

实现步骤

由EXTI基本结构可知需要配置的外设模块有GPIOB，AFIO，EXTI，NVIC

• 1、配置RCC，设计的外设时钟打开，外设才能工作

注意GPIO基本结构

选择APB2

/*开启时钟*/RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);		//开启GPIOB的时钟（B 14）RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);		//开启AFIO的时钟，外部中断必须开启AFIO的时钟

EXTI和NVIC（内核外设）的时钟一直是打开状态，不需要我们自己手动打开

• 2、初始化GPIOB

/*GPIO初始化*/GPIO_InitTypeDef GPIO_InitStructure;GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;	            //将PB14引脚初始化为上拉输入，默认为高电平输入GPIO_InitStructure.GPIO_Pin = GPIO_Pin_14;                  //接入引脚为14GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; //不重要GPIO_Init(GPIOB, &GPIO_InitStructure);					

• 3、AFIO选择中断引脚

/*AFIO选择中断引脚*/GPIO_EXTILineConfig(GPIO_PortSourceGPIOB, GPIO_PinSource14);//将外部中断的14号线映射到GPIOB，即选择PB14为外部中断引脚

• 4、EXIT初始化

/*EXTI初始化*/EXTI_InitTypeDef EXTI_InitStructure;						//定义结构体变量EXTI_InitStructure.EXTI_Line = EXTI_Line14;					//选择配置外部中断的14号线EXTI_InitStructure.EXTI_LineCmd = ENABLE;					//指定外部中断线使能EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;			//指定外部中断线为中断模式EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;		//指定外部中断线为下降沿触发EXTI_Init(&EXTI_InitStructure);								//将结构体变量交给EXTI_Init，配置EXTI外设

• 5、NVIC中断分组、NVIC配置

/*NVIC中断分组*/NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);				//配置NVIC为分组2//即抢占优先级范围：0~3，响应优先级范围：0~3//此分组配置在整个工程中仅需调用一次//若有多个中断，可以把此代码放在main函数内，while循环之前//若调用多次配置分组的代码，则后执行的配置会覆盖先执行的配置/*NVIC配置*/NVIC_InitTypeDef NVIC_InitStructure;						//定义结构体变量NVIC_InitStructure.NVIC_IRQChannel = EXTI15_10_IRQn;		//选择配置NVIC的EXTI15_10线NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;				//指定NVIC线路使能NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;	//指定NVIC线路的抢占优先级为1NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;			//指定NVIC线路的响应优先级为1NVIC_Init(&NVIC_InitStructure);								//将结构体变量交给NVIC_Init，配置NVIC外设

• 6、封装中断函数

void EXTI15_10_IRQHandler(void)
{if (EXTI_GetITStatus(EXTI_Line14) == SET)		//判断是否是外部中断14号线触发的中断{/*如果出现数据乱跳的现象，可再次判断引脚电平，以避免抖动*/if (GPIO_ReadInputDataBit(GPIOB, GPIO_Pin_14) == 0){CountSensor_Count ++;					//计数值自增一次}EXTI_ClearITPendingBit(EXTI_Line14);		//清除外部中断14号线的中断标志位//中断标志位必须清除//否则中断将连续不断地触发，导致主程序卡死}
}

• 7、定义全局变量用于计数，并返回

uint16_t CountSensor_Count;				//全局变量，用于计数uint16_t CountSensor_Get(void)
{return CountSensor_Count;
}

总结

.c文件

#include "stm32f10x.h"                  // Device headeruint16_t CountSensor_Count;				//全局变量，用于计数/*** 函    数：计数传感器初始化* 参    数：无* 返 回 值：无*/
void CountSensor_Init(void)
{/*开启时钟*/RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);		//开启GPIOB的时钟（B 14）RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);		//开启AFIO的时钟，外部中断必须开启AFIO的时钟/*GPIO初始化*/GPIO_InitTypeDef GPIO_InitStructure;GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;	            //将PB14引脚初始化为上拉输入GPIO_InitStructure.GPIO_Pin = GPIO_Pin_14;                  //接入引脚为14GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;GPIO_Init(GPIOB, &GPIO_InitStructure);					/*AFIO选择中断引脚*/GPIO_EXTILineConfig(GPIO_PortSourceGPIOB, GPIO_PinSource14);//将外部中断的14号线映射到GPIOB，即选择PB14为外部中断引脚/*EXTI初始化*/EXTI_InitTypeDef EXTI_InitStructure;						//定义结构体变量EXTI_InitStructure.EXTI_Line = EXTI_Line14;					//选择配置外部中断的14号线EXTI_InitStructure.EXTI_LineCmd = ENABLE;					//指定外部中断线使能EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;			//指定外部中断线为中断模式EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;		//指定外部中断线为下降沿触发EXTI_Init(&EXTI_InitStructure);								//将结构体变量交给EXTI_Init，配置EXTI外设/*NVIC中断分组*/NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);				//配置NVIC为分组2//即抢占优先级范围：0~3，响应优先级范围：0~3//此分组配置在整个工程中仅需调用一次//若有多个中断，可以把此代码放在main函数内，while循环之前//若调用多次配置分组的代码，则后执行的配置会覆盖先执行的配置/*NVIC配置*/NVIC_InitTypeDef NVIC_InitStructure;						//定义结构体变量NVIC_InitStructure.NVIC_IRQChannel = EXTI15_10_IRQn;		//选择配置NVIC的EXTI15_10线NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;				//指定NVIC线路使能NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;	//指定NVIC线路的抢占优先级为1NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;			//指定NVIC线路的响应优先级为1NVIC_Init(&NVIC_InitStructure);								//将结构体变量交给NVIC_Init，配置NVIC外设
}/*** 函    数：获取计数传感器的计数值* 参    数：无* 返 回 值：计数值，范围：0~65535*/
uint16_t CountSensor_Get(void)
{return CountSensor_Count;
}/*** 函    数：EXTI15_10外部中断函数* 参    数：无* 返 回 值：无* 注意事项：此函数为中断函数，无需调用，中断触发后自动执行*           函数名为预留的指定名称，可以从启动文件复制*           请确保函数名正确，不能有任何差异，否则中断函数将不能进入*/
void EXTI15_10_IRQHandler(void)
{if (EXTI_GetITStatus(EXTI_Line14) == SET)		//判断是否是外部中断14号线触发的中断{/*如果出现数据乱跳的现象，可再次判断引脚电平，以避免抖动*/if (GPIO_ReadInputDataBit(GPIOB, GPIO_Pin_14) == 0){CountSensor_Count ++;					//计数值自增一次}EXTI_ClearITPendingBit(EXTI_Line14);		//清除外部中断14号线的中断标志位//中断标志位必须清除//否则中断将连续不断地触发，导致主程序卡死}
}

.h文件

#ifndef __COUNT_SENSOR_H
#define __COUNT_SENSOR_Hvoid CountSensor_Init(void);
uint16_t CountSensor_Get(void);#endif

测试文件

#include "stm32f10x.h"                  // Device header
#include "Delay.h"
#include "OLED.h"
#include "CountSensor.h"int main(void)
{/*模块初始化*/OLED_Init();			//OLED初始化CountSensor_Init();		//计数传感器初始化/*显示静态字符串*/OLED_ShowString(1, 1, "Count:");	//1行1列显示字符串Count:while (1){OLED_ShowNum(1, 7, CountSensor_Get(), 5);		//OLED不断刷新显示CountSensor_Get的返回值}
}

旋转编码器计次

硬件框图

接线图

实现步骤

• 1、同上，封装旋转编码器初始化函数

void Encoder_Init(void)
{/*开启时钟*/RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);		//开启GPIOB的时钟RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);		//开启AFIO的时钟，外部中断必须开启AFIO的时钟/*GPIO初始化*/GPIO_InitTypeDef GPIO_InitStructure;GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1;GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;GPIO_Init(GPIOB, &GPIO_InitStructure);						//将PB0和PB1引脚初始化为上拉输入/*AFIO选择中断引脚*/GPIO_EXTILineConfig(GPIO_PortSourceGPIOB, GPIO_PinSource0);//将外部中断的0号线映射到GPIOB，即选择PB0为外部中断引脚GPIO_EXTILineConfig(GPIO_PortSourceGPIOB, GPIO_PinSource1);//将外部中断的1号线映射到GPIOB，即选择PB1为外部中断引脚/*EXTI初始化*/EXTI_InitTypeDef EXTI_InitStructure;						//定义结构体变量EXTI_InitStructure.EXTI_Line = EXTI_Line0 | EXTI_Line1;		//选择配置外部中断的0号线和1号线EXTI_InitStructure.EXTI_LineCmd = ENABLE;					//指定外部中断线使能EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;			//指定外部中断线为中断模式EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;		//指定外部中断线为下降沿触发EXTI_Init(&EXTI_InitStructure);								//将结构体变量交给EXTI_Init，配置EXTI外设/*NVIC中断分组*/NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);				//配置NVIC为分组2//即抢占优先级范围：0~3，响应优先级范围：0~3//此分组配置在整个工程中仅需调用一次//若有多个中断，可以把此代码放在main函数内，while循环之前//若调用多次配置分组的代码，则后执行的配置会覆盖先执行的配置/*NVIC配置*/NVIC_InitTypeDef NVIC_InitStructure;						//定义结构体变量NVIC_InitStructure.NVIC_IRQChannel = EXTI0_IRQn;			//选择配置NVIC的EXTI0线NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;				//指定NVIC线路使能NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;	//指定NVIC线路的抢占优先级为1NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;			//指定NVIC线路的响应优先级为1NVIC_Init(&NVIC_InitStructure);								//将结构体变量交给NVIC_Init，配置NVIC外设NVIC_InitStructure.NVIC_IRQChannel = EXTI1_IRQn;			//选择配置NVIC的EXTI1线NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;				//指定NVIC线路使能NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;	//指定NVIC线路的抢占优先级为1NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2;			//指定NVIC线路的响应优先级为2NVIC_Init(&NVIC_InitStructure);								//将结构体变量交给NVIC_Init，配置NVIC外设
}

仅引脚发生变化改动其中的引脚值

• 2、封装中断函数

void EXTI0_IRQHandler(void)
{if (EXTI_GetITStatus(EXTI_Line0) == SET)		//判断是否是外部中断0号线触发的中断{/*如果出现数据乱跳的现象，可再次判断引脚电平，以避免抖动*/if (GPIO_ReadInputDataBit(GPIOB, GPIO_Pin_0) == 0){if (GPIO_ReadInputDataBit(GPIOB, GPIO_Pin_1) == 0)		//PB0的下降沿触发中断，此时检测另一相PB1的电平，目的是判断旋转方向{Encoder_Count --;					//此方向定义为反转，计数变量自减}}EXTI_ClearITPendingBit(EXTI_Line0);			//清除外部中断0号线的中断标志位//中断标志位必须清除//否则中断将连续不断地触发，导致主程序卡死}
}/*** 函    数：EXTI1外部中断函数* 参    数：无* 返 回 值：无* 注意事项：此函数为中断函数，无需调用，中断触发后自动执行*           函数名为预留的指定名称，可以从启动文件复制*           请确保函数名正确，不能有任何差异，否则中断函数将不能进入*/
void EXTI1_IRQHandler(void)
{if (EXTI_GetITStatus(EXTI_Line1) == SET)		//判断是否是外部中断1号线触发的中断{/*如果出现数据乱跳的现象，可再次判断引脚电平，以避免抖动*/if (GPIO_ReadInputDataBit(GPIOB, GPIO_Pin_1) == 0){if (GPIO_ReadInputDataBit(GPIOB, GPIO_Pin_0) == 0)		//PB1的下降沿触发中断，此时检测另一相PB0的电平，目的是判断旋转方向{Encoder_Count ++;					//此方向定义为正转，计数变量自增}}EXTI_ClearITPendingBit(EXTI_Line1);			//清除外部中断1号线的中断标志位//中断标志位必须清除//否则中断将连续不断地触发，导致主程序卡死}
}

• 3、封装计次函数

int16_t Encoder_Count;					//全局变量，用于计数旋转编码器的增量值int16_t Encoder_Get(void)
{/*使用Temp变量作为中继，目的是返回Encoder_Count后将其清零*//*在这里，也可以直接返回Encoder_Count但这样就不是获取增量值的操作方法了也可以实现功能，只是思路不一样*/int16_t Temp;Temp = Encoder_Count;Encoder_Count = 0;return Temp;
}

总结

.c文件

#include "stm32f10x.h"                  // Device headerint16_t Encoder_Count;					//全局变量，用于计数旋转编码器的增量值/*** 函    数：旋转编码器初始化* 参    数：无* 返 回 值：无*/
void Encoder_Init(void)
{/*开启时钟*/RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);		//开启GPIOB的时钟RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);		//开启AFIO的时钟，外部中断必须开启AFIO的时钟/*GPIO初始化*/GPIO_InitTypeDef GPIO_InitStructure;GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1;GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;GPIO_Init(GPIOB, &GPIO_InitStructure);						//将PB0和PB1引脚初始化为上拉输入/*AFIO选择中断引脚*/GPIO_EXTILineConfig(GPIO_PortSourceGPIOB, GPIO_PinSource0);//将外部中断的0号线映射到GPIOB，即选择PB0为外部中断引脚GPIO_EXTILineConfig(GPIO_PortSourceGPIOB, GPIO_PinSource1);//将外部中断的1号线映射到GPIOB，即选择PB1为外部中断引脚/*EXTI初始化*/EXTI_InitTypeDef EXTI_InitStructure;						//定义结构体变量EXTI_InitStructure.EXTI_Line = EXTI_Line0 | EXTI_Line1;		//选择配置外部中断的0号线和1号线EXTI_InitStructure.EXTI_LineCmd = ENABLE;					//指定外部中断线使能EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;			//指定外部中断线为中断模式EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;		//指定外部中断线为下降沿触发EXTI_Init(&EXTI_InitStructure);								//将结构体变量交给EXTI_Init，配置EXTI外设/*NVIC中断分组*/NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);				//配置NVIC为分组2//即抢占优先级范围：0~3，响应优先级范围：0~3//此分组配置在整个工程中仅需调用一次//若有多个中断，可以把此代码放在main函数内，while循环之前//若调用多次配置分组的代码，则后执行的配置会覆盖先执行的配置/*NVIC配置*/NVIC_InitTypeDef NVIC_InitStructure;						//定义结构体变量NVIC_InitStructure.NVIC_IRQChannel = EXTI0_IRQn;			//选择配置NVIC的EXTI0线NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;				//指定NVIC线路使能NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;	//指定NVIC线路的抢占优先级为1NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;			//指定NVIC线路的响应优先级为1NVIC_Init(&NVIC_InitStructure);								//将结构体变量交给NVIC_Init，配置NVIC外设NVIC_InitStructure.NVIC_IRQChannel = EXTI1_IRQn;			//选择配置NVIC的EXTI1线NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;				//指定NVIC线路使能NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;	//指定NVIC线路的抢占优先级为1NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2;			//指定NVIC线路的响应优先级为2NVIC_Init(&NVIC_InitStructure);								//将结构体变量交给NVIC_Init，配置NVIC外设
}/*** 函    数：旋转编码器获取增量值* 参    数：无* 返 回 值：自上此调用此函数后，旋转编码器的增量值*/
int16_t Encoder_Get(void)
{/*使用Temp变量作为中继，目的是返回Encoder_Count后将其清零*//*在这里，也可以直接返回Encoder_Count但这样就不是获取增量值的操作方法了也可以实现功能，只是思路不一样*/int16_t Temp;Temp = Encoder_Count;Encoder_Count = 0;return Temp;
}/*** 函    数：EXTI0外部中断函数* 参    数：无* 返 回 值：无* 注意事项：此函数为中断函数，无需调用，中断触发后自动执行*           函数名为预留的指定名称，可以从启动文件复制*           请确保函数名正确，不能有任何差异，否则中断函数将不能进入*/
void EXTI0_IRQHandler(void)
{if (EXTI_GetITStatus(EXTI_Line0) == SET)		//判断是否是外部中断0号线触发的中断{/*如果出现数据乱跳的现象，可再次判断引脚电平，以避免抖动*/if (GPIO_ReadInputDataBit(GPIOB, GPIO_Pin_0) == 0){if (GPIO_ReadInputDataBit(GPIOB, GPIO_Pin_1) == 0)		//PB0的下降沿触发中断，此时检测另一相PB1的电平，目的是判断旋转方向{Encoder_Count --;					//此方向定义为反转，计数变量自减}}EXTI_ClearITPendingBit(EXTI_Line0);			//清除外部中断0号线的中断标志位//中断标志位必须清除//否则中断将连续不断地触发，导致主程序卡死}
}/*** 函    数：EXTI1外部中断函数* 参    数：无* 返 回 值：无* 注意事项：此函数为中断函数，无需调用，中断触发后自动执行*           函数名为预留的指定名称，可以从启动文件复制*           请确保函数名正确，不能有任何差异，否则中断函数将不能进入*/
void EXTI1_IRQHandler(void)
{if (EXTI_GetITStatus(EXTI_Line1) == SET)		//判断是否是外部中断1号线触发的中断{/*如果出现数据乱跳的现象，可再次判断引脚电平，以避免抖动*/if (GPIO_ReadInputDataBit(GPIOB, GPIO_Pin_1) == 0){if (GPIO_ReadInputDataBit(GPIOB, GPIO_Pin_0) == 0)		//PB1的下降沿触发中断，此时检测另一相PB0的电平，目的是判断旋转方向{Encoder_Count ++;					//此方向定义为正转，计数变量自增}}EXTI_ClearITPendingBit(EXTI_Line1);			//清除外部中断1号线的中断标志位//中断标志位必须清除//否则中断将连续不断地触发，导致主程序卡死}
}

.h文件

#ifndef __ENCODER_H
#define __ENCODER_Hvoid Encoder_Init(void);
int16_t Encoder_Get(void);#endif

测试文件

#include "stm32f10x.h"                  // Device header
#include "Delay.h"
#include "OLED.h"
#include "Encoder.h"int16_t Num;			//定义待被旋转编码器调节的变量int main(void)
{/*模块初始化*/OLED_Init();		//OLED初始化Encoder_Init();		//旋转编码器初始化/*显示静态字符串*/OLED_ShowString(1, 1, "Num:");			//1行1列显示字符串Num:while (1){Num += Encoder_Get();				//获取自上此调用此函数后，旋转编码器的增量值，并将增量值加到Num上OLED_ShowSignedNum(1, 5, Num, 5);	//显示Num}
}

OLED屏幕的代码（先直接使用）

.c

#include "stm32f10x.h"
#include "OLED_Font.h"/*引脚配置*/
#define OLED_W_SCL(x)		GPIO_WriteBit(GPIOB, GPIO_Pin_8, (BitAction)(x))
#define OLED_W_SDA(x)		GPIO_WriteBit(GPIOB, GPIO_Pin_9, (BitAction)(x))/*引脚初始化*/
void OLED_I2C_Init(void)
{RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);GPIO_InitTypeDef GPIO_InitStructure;GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_OD;GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;GPIO_Init(GPIOB, &GPIO_InitStructure);GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;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_Font.h

#ifndef __OLED_FONT_H
#define __OLED_FONT_H/*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

.h

#ifndef __OLED_H
#define __OLED_Hvoid 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