一.IIC协议简介
IIC通讯协议(Inter----Integrted Circuit)是由Phiips飞利浦公司开发的,由于他引脚少,硬件实现简单,可拓展性强,不需要UASRT,CAN通讯协议的外部收发设备,现在被广泛使用在系统内多个集成电路IC(芯片)间的通讯。(半双工的通讯方式)
他是一个支持多设备的总线。”总线”指多个设备共用的信号线,在一个IIC通讯总线中,可连接多个IIC通讯设备,支持多个通讯主机及多个通讯从机。
一个IIC总线只使用两条总线线路,一条双向串行数据线(SDA),一条串行时钟线(SCL)。数据线即用来表示数据,时钟线用于数据收发同步。
每个连接到总线的设备都有一个独立的地址,主机可以利用这个地址进行不同设备直接的访问。
二.IIC总线
硬件IIC:对应芯片上的IIC外设,有相对应的IIC驱动电路,其所使用的IIC管教也是专用的;
软件IIC:一般是用GPIO管教,用软件控制管脚状态以及模拟IIC通信波形;
区别:硬件IIC的效率要远高于软件的,而软件IIC不受引脚限制,接口比较灵活。
软件IIC是通过GPIO,软件模拟寄存器的工作方式,而硬件IIC是直接调用内部寄存器进行配置。如果要从具体硬件上来看,可以去看下芯片手册。因为固件IIC的端口是固定的,所以会有所区别。
如何区分?
1.硬件IIC用法复杂,模拟IIC流程更加清楚
2.硬件IIC速度比模拟快,并且可以用DMA
3.模拟IIC可以在任何管脚上,硬件IIC在固定管脚上
3.IIC 总线协议层
三.IIC通信
① 空闲状态
②开始信号
③停止信号
④应答信号
⑤数据的有效性
⑥数据传输
1.空闲状态
IIC总线的SDA和SCL两条信号线同时处于高电平时,规定位总线的空闲状态。此时各个器件的输出级场效应管均处在截止状态,即释放总线,由两条信号线各自的上拉电阻把电平拉高
2.开始信号与停止信号
起始信号:当SCL为高电平期间,SDA有高到低的跳变;启动信号是一种电平跳变时序信号,而不是一个电平信号。
停止信号:当SCL为高电平期间,SDA由低到高的跳变;停止信号也是一种高电平跳变时序信号,而不是一个电平信号
起始信号和停止信号一般由主机产生
3.应答信号
发送器每发送一个字节,就在时钟脉冲9期间释放数据线,由接收器反馈一个应答信号。应答信号为低电平时,规定为有效应答位(ACK简称应答位)
表示接收器已经成功地接收了该字节;应答信号为高电平时,规定为非应答位(NACK),一般表示接收器接收该字节没有成功。
对于反馈有效应答位ACK的要求是,接收器在第九个时钟脉冲之前的低电平期间将SDA线拉低,并且确保在该时钟的高电平期间为稳定的低电平。
如果接收器是主控器,则在它收到最后一个字节后,发送一个NACK信号,以通知被控发送器数据发送,并释放SDA线,以便主控接收器发送一个停止信号P。
4.数据的有效性
IIC总线进行数据传输时,时钟信号为高电平期间,数据线上的数据必须保持稳定,只有在时钟线上的信号为低电平期间,数据线上的高电平或低电平状态才允许变化。SDA数据线在SCL的每个时钟周期传输一位数据。
即:数据在SCL的上升沿到来之前就需准备好。并在下降沿到来之前必须稳定
5.数据传输
在IIC总线上传送的每一位数据都有一个时钟脉冲相对应(或同步控制),即在SCL串行时钟的配合下,在SDA上逐位地串行传送每一位数据。数据位的传输是边沿触发
四.STM32的IIC特性及架构
①软件模拟协议:使用CPU直接控制通讯引脚的电平,产生出符合通讯协议标准的逻辑。
②硬件实现协议:由STM32的IIC片上外设专门负责实现IIC通讯协议,只要配置好该外设,它就会自动根据协议要求产生通讯信号,收发数据并缓存起来,CPU只要检测该外设的状态和访问数据寄存器,就能完成数据收发。这种由硬件外设处理IIC协议的方式减轻了CPU的工作,且使软件设计更加简单。
STM32的IIC外设可用作通讯的主机及从机,支持100Kbit/s和400Kbits/s的速率,支持7位、10位设备地址,支持DMA数据传输,并具有数据校验功能。
1.通讯引脚
STM32芯片有多个IIC外设,它们的IIC通讯信号引出到不同的GPIO引脚上,使用时必须配置这些指定的引脚。
2.时钟控制
SCL线的时钟信号,由IIC接口根据时钟控制寄存器(CCR)控制,控制的参数主要位时钟频率。 可选择IIC通讯的“标准/快速”模式,这两个模式分别对应100/400Kbits/s的通讯速率。
在快速模式下可选择SCL时钟的占空比,可选T(low)/T(high) = 2或T(low)/T(high)=16/9模式。
CCR寄存器中12位的配置因子CCR,它与IIC外设的输入时钟源共用作用,产生SCL时钟。STM32的IIC外设输入时钟源位PCKL1
- 计算时钟频率
- 标准模式
- T high = CCR *T pckl1 T low= CCR*Tpclk1
- 快速模式中 Tlow/Tlow =2时:
- Thigh = CCR*Tpckl1 T low = 2*low*Tpckl1
- 快速模式中 Tlow/Tlow =16/9时:
- Thigh = 9*CCR*Tpckl1 T low = 16*low*Tpckl1
- PCLK1 = 36MHz,想要配置400Kbits/s 方法:
- PCLK时钟周期: TPCLK1 = 1/36 000 000
- 目标SCL时钟周期: TSCL = 1/400 000
- SCL时钟周期内的高电平时间: Thigh = TSCL/3
- SCL时钟周期内的低电平时间: Tlow = 2*TSCL/3
- 计算CCR的值 : CCR = THIGH/TPCLK1 = 30
- 计算出来的值写入到寄存器即可
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3.数据控制
IC的SDA信号主要连接到数据移位寄存器上,数据移位寄存器的数据来源及目标是数据寄存器(DR)、地址寄存器(OAR)、PEC寄存器以及SDA数据线。
当向外发送数据的时候,数据移位寄存器以“数据寄存器”为数据源,把数据一位一位地通过SDA信号线发送出去。
当从外部接收数据的时候,数据移位寄存器把SDA信号线采样到的数据一位一位地存储到”数据寄存器”中。
五.使用IIC的通讯过程
使用IIC外设通讯时,在通讯的不同阶段它会对”状态寄存器(SR1和SR2)”的不同数据位写入参数,通过读取这些寄存器标志来了解通讯状态。
控制产生起始信号(S),当发生起始信号后,它产生事件”EV5”,并会对SR1寄存器的 SB 位置1,表示起始信号已经发生。
发生设备地址并等待应答信号,若有从机应答,则产生时间 EV6 及 EV8 ,这时SR1寄存器的 ADDR位及 TXE位被置1,ADDR位1 表示地址已经发送,TEX表示数据寄存器为空。
往IIC的数据寄存器DR写入要发送的数据,这时TXE位会被充值0,表示数据寄存器非空,IIC外设通过SDA信号线一位位把数据发送出去后,又会产生EV8事件,即TXE被置1,重复这个过程,可发送多个字节。
发送数据完成后,控制IIC设备产生一个停止信号P,这个时候产生EV2事件,SR1的TEX位及BTF位被置1,表示通讯结束
IIC结构体
- typedef struct
- {
- uint32_t I2C_ClockSpeed; //设置SCL时钟频率,此值要低于400 000
- uint16_t I2C_Mode; //指定工作模式,可选IIC模式及SMBUS模式
- uint16_t I2C_DutyCycle; //时钟占空比,可选low/high = 2:0或16:9
- uint16_t I2C_OwnAddress1; //自身的IIC设备地址
- uint16_t I2C_Ack; //使能或者关闭响应,一般是使能
- uint16_t I2C_AcknowledgedAddress; //指定地址长度,可为7或10
- }I2C_InitTypeDef;
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一、I2C_ClockSpeed
设置IIC的传输速率,在调用初始化函数时,函数会根据我们输入的数值经过运算后把时钟因子写入到IIC的时钟控制寄存器CCR。而我们写入的这个参数值不得高于400Khz.
实际上由于CCR寄存器不能写入小数类型的时钟因子,影响到SCL的实际频率可能会低于本成员设置的参数值,这时除了通讯会稍微慢点以外,不会对IIC的标准通讯造成其他影响
二、 I2C_DutyCycle
设置IIC的SCL线时钟的占空比。该配置有两个选择,分别为低电平时间比高电平时间为2:1(IIC_DutyCycle_2)和16:9
(IIC_DutyCycle_16_9)其实这两个模式的比例差别并不大,一般要求都不会如此严格,这里随便选就可以了。
三、I2C_OwnAddress1
配置STM32的IIC设备自己的地址,每个连接到IIC总线上的设备都有一个自己的地址,作为主机也不例外。地址可以设置为7位或10位(受下面IIC_AcknowledgeAddress成员决定),只要该地址是IIC总线上唯一的即可。
STM32的IIC外设可同时使用两个地址,即同时对两个地址作出响应,这个结构体成员IIC_OwnAddress1配置的是默认的,OAR1寄存器存储的地址,若需要设置第二个地址寄存器OAR2,可使用
IIC_OwmAddress2Conig函数来配置,OAR2不支持10位地址。
四、I2C_Ack
配置IIC应答是否使能,设置位使能则可以发送响应信号,一般配置位允许应答(IIC_Ack_Enable),这是绝大多数遵循IIC标准的设备的通讯要求,改为禁止应答(IIC_Ack_Disable)往往会导致通讯错误。
五、I2C_OwnAddress1
配置STM32的IIC设备自己的地址,每个连接到IIC总线上的设备都有一个自己的地址,作为主机也不例外。地址可以设置为7位或10位(受下面IIC_AcknowledgeAddress成员决定),只要该地址是IIC总线上唯一的即可。
STM32的IIC外设可同时使用两个地址,即同时对两个地址作出响应,这个结构体成员IIC_OwnAddress1配置的是默认的,OAR1寄存器存储的地址,若需要设置第二个地址寄存器OAR2,可使用
IIC_OwmAddress2Conig函数来配置,OAR2不支持10位地址。
到这里关于IIC的配置和认识就将完了,下面在来了解一下Oled屏幕
六.Oled屏幕
OLED即有机发光管(Organic Light-Emitting Diode,OLED)。OLED显示技术具有自发光、广视角、几乎无穷高的对比度、较低功耗、极高反应速度、可用于绕曲性面板、使用温度范围广、构造及制程简单等有点,被认为是下一代的平面显示屏新兴应用技术。
· OLED显示和传统的LCD显示不同,其可以自发光,所以不需要背光灯,这使得OLED显示屏相对于LCD显示屏尺寸更薄,同时显示效果更优。
常用的OLED屏幕有蓝色、黄色、白色等几种。屏的大小为0.96寸,像素点为
128*64,所以我们称为0.96oled屏或者12864屏。
- 1.oled特点
- 1.模块尺寸:23.7 *23.8mm
- 2.电源电压:3.3-5.5V
- 3.驱动芯片:SSD1306
- 4.测试平台:提供 k60/k10,9s12XS128,51,stm32,stm8等单片机
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2.oled屏幕显存
OLED本身是没有显存的,他的现存是依赖SSD1306提供的,而SSD1306提供一块显存。
SSD1306显存总共为128*64bit大小,SSD1306将这些显存分成了8页。每页包含了128个字节。
3.oled原理
STM32内部建立一个缓存(共128*8个字节),每次修改的时候,只是修改STM32上的缓存(实际上就是SRAM),修改完后一次性把STM32上的缓存数据写入到OLED的GRAM。
这个方法也有坏处,对于SRAM很小的单片机(51系列)就比较麻烦。
4.常用指令
命令0X81: 设置对比度。包含两个字节,第一个0X81为命令,随后方法是的一个字节要设置这个对比度,值越大屏幕越亮。
命令0XAE/0XAF: 0XAE为关闭显示命令,0XAF为开启显示命令
0X8D: 包含两个字节,第一个为命令字,第二个为设置值,第二个字节的BIT2表示电荷泵的开关状态,该位为1开启电荷泵,为0则关闭。模块初始化的时候,这个必须要开启,否则看不到屏幕显示。
命令0XB0~B7:用于设置页地址,其低三位的值对应GRAM页地址。
命令0X00~0X0F:用于设置显示时的起始列地址低四位。
命令0X10~0X1F: 用于设置显示时的起始列地址高四位
七.oled屏幕字模使用
OLED点阵的点亮方式,举个显示”P”的例子,最左边位最高位P7
1.可以看出,要想显示”P”,首先写入0x1f,则显示一个竖杠,之后控制器自动水平移动到下一列。
2.再写入0X05,则出现两个小横杆,这个两个横杆就是0X05中0000 0101中两个1所处的位置,写完第二列后,控制器自动跳到第三列.
3.再写入0X07,第四列写入0X00后,P就显示出来了。这也说明,即使你只想再一列的最上端显示一个小点,即写入0X01.
4.即你不能一次性控制一个点阵,只能一次性控制八位点阵,即一列点阵。这也决定了字模选择的取模方式为“列行式“。
八、关于取模说明
取模主要有三种一是图片、字符、汉字三种,取的原理是一样的
图片取模
打开 PCtoLCD2002.exe 软件
其他两种取模形式和图片相同,大家都可以尝试一下
开始写代码吧
oled.c
- #include "stm32f10x.h"
- #include "oled.h"
- #include "OLED_Codetab.h"
- #include "delay.h"
- void I2C_Configuration(void)
- {
- I2C_InitTypeDef I2C_InitStructure; //I2C结构体配置
- GPIO_InitTypeDef GPIO_InitStructure; //GPIO结构体配置
- RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE); //时钟使能
- RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C1, ENABLE);
-
- //PB6 SCL PB7 DAT
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_OD;
- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7 | GPIO_Pin_6;
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
- GPIO_Init(GPIOB,&GPIO_InitStructure);
-
-
- //I2C
- I2C_DeInit(I2C1);
- I2C_InitStructure.I2C_Ack = I2C_Ack_Enable;
- I2C_InitStructure.I2C_AcknowledgedAddress = I2C_AcknowledgedAddress_7bit;
- I2C_InitStructure.I2C_ClockSpeed = 400000;
- I2C_InitStructure.I2C_DutyCycle = I2C_DutyCycle_2;
- I2C_InitStructure.I2C_Mode = I2C_Mode_I2C;
- I2C_InitStructure.I2C_OwnAddress1 = 0X10;
- I2C_Init( I2C1, &I2C_InitStructure);
- I2C_Cmd( I2C1, ENABLE); //使能I2C1
- }
- void I2C_WriteByte(uint8_t addr , uint8_t data)
- {
- while(I2C_GetFlagStatus(I2C1, I2C_FLAG_BUSY) //检测I2C总线是否繁忙
- I2C_GenerateSTART(I2C1, ENABLE); //开启I2C
- while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_MODE_SELECT)); //EV5 主模式
- I2C_Send7bitAddress(I2C1, OLED_ADDRESS, I2C_Direction_Transmitter); //发生器地址
- while(!I2C_CheckEvent(I2C1 ,I2C_EVENT_MASTER_RECEIVER_MODE_SELECTED)); //EV6
-
- I2C_SendData( I2C1, addr); //寄存器地址
- while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_TRANSMITTING)); //EV8 主模式
- I2C_SendData( I2C1 , data); //发送数据
- while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_TRANSMITTING)); //EV8 Ö÷ģʽ
-
- I2C_GenerateSTOP(I2C1,ENABLE ); //关闭I2C总线
-
- }
- //写命令
- void WriteCmd(unsigned char I2C_Cmd)
- {
- I2C_WriteByte(0X00,I2C_Cmd);
- }
- //写数据
- void WriteData(unsigned char I2C_Data)
- {
- I2C_WriteByte(0X40 , I2C_Data);
- }
-
- //OELD初始化
- void OLED_Init(void)
- {
- delay_ms(100);
- WriteCmd(0xAE); //display off
- WriteCmd(0x20); //Set Memory Addressing Mode
- WriteCmd(0x10); //00,Horizontal Addressing Mode;01,Vertical Addressing Mode;10,Page Addressing Mode (RESET);11,Invalid
- WriteCmd(0xb0); //Set Page Start Address for Page Addressing Mode,0-7
- WriteCmd(0xc8); //Set COM Output Scan Direction
- WriteCmd(0x00); //---set low column address
- WriteCmd(0x10); //---set high column address
- WriteCmd(0x40); //--set start line address
- WriteCmd(0x81); //--set contrast control register
- WriteCmd(0xff); //ÁÁ¶Èµ÷½Ú 0x00~0xff
- WriteCmd(0xa1); //--set segment re-map 0 to 127
- WriteCmd(0xa6); //--set normal display
- WriteCmd(0xa8); //--set multiplex ratio(1 to 64)
- WriteCmd(0x3F); //
- WriteCmd(0xa4); //0xa4,Output follows RAM content;0xa5,Output ignores RAM content
- WriteCmd(0xd3); //-set display offset
- WriteCmd(0x00); //-not offset
- WriteCmd(0xd5); //--set display clock divide ratio/oscillator frequency
- WriteCmd(0xf0); //--set divide ratio
- WriteCmd(0xd9); //--set pre-charge period
- WriteCmd(0x22); //
- WriteCmd(0xda); //--set com pins hardware configuration
- WriteCmd(0x12);
- WriteCmd(0xdb); //--set vcomh
- WriteCmd(0x20); //0x20,0.77xVcc
- WriteCmd(0x8d); //--set DC-DC enable
- WriteCmd(0x14); //
- WriteCmd(0xaf); //--turn on oled panel
- }
-
- //设置起点坐标
- void OLED_SetPos(unsigned char x, unsigned char y)
- {
- WriteCmd(0xb0 + y);
- WriteCmd((x & 0xf0) >> 4 | 0x10);
- WriteCmd((x & 0x0f ) | 0x01);
- }
- //全屏填充
- void OLED_Full(unsigned char Full_Data)
- {
- unsigned char n, m ;
- for( m = 0 ; m < 8 ; m++)
- {
- WriteCmd(0xb0 + m);
- WriteCmd(0x00);
- WriteCmd(0x10);
- for( n = 0 ; n < 128 ; n++)
- {
- WriteData(Full_Data);
- }
- }
- }
- //清屏函数
- void OLED_Clear(void)
- {
- OLED_Full(0x00);
- }
- //oled打开
- void OLED_Open(void)
- {
- WriteCmd(0x8D); //设置电荷泵
- WriteCmd(0x14); //开启电荷泵
- WriteCmd(0xaf); //OLED唤醒
-
- }
- //oled关闭
- void OLED_Close(void)
- {
- WriteCmd(0x8D);
- WriteCmd(0x10); //关闭电荷泵
- WriteCmd(0xAE); //关闭oled
- }
- //显示字符串
- void OLED_ShowStr(unsigned char x, unsigned char y , unsigned char ch[] , unsigned TestSize)
- {
- unsigned char c = 0 , i = 0, j = 0;
- switch(TestSize)
- {
- case 1:
- {
- while(ch[j] != '\0')
- {
- c = ch[j] - 32;
- if(x > 126)
- {
- x = 0 ;
- y ++;
- }
- OLED_SetPos(x , y);
- for( i = 0 ; i< 6 ; i++)
- WriteData(F6X8[c]<i>);
- x+= 6;
- j++;
- }
- }break;
- case 2:
- {
- while(ch[j] != '\0')
- {c = ch[j] - 32;
- if( x > 120)
- {
- x = 0;
- y++;
- }
- OLED_SetPos(x , y);
- for( i = 0 ; i < 8 ; i++)
- WriteData(F8X16[c*16 + i]);
- OLED_SetPos(x , y+1);
- for( i = 0 ; i < 8 ; i++)
- WriteData(F8X16[c*16+i+8]);
- x+=8;
- j++;
- }
- }break;
- }
- }
- //显示文字
- void OLED_ShowCn(unsigned char x, unsigned char y , unsigned char N)
- {
- unsigned char wn = 0;
- unsigned int addr = 32*N;
- OLED_SetPos(x , y);
- for( wn = 0 ; wn < 16 ; wn++)
- {
- WriteData(F16X16[addr]);
- addr+= 1;
- }
- OLED_SetPos(x , y+1);
- for( wn = 0 ; wn < 16 ; wn++)
- {
- WriteData(F16X16[addr]);
- addr+= 1;
- }
-
- }
- //显示图像
- void OLED_ShowBMP(unsigned char x0 , unsigned char y0 , unsigned char x1 , unsigned char y1 , unsigned char BMP[])
- {
- unsigned int j = 0;
- unsigned char x , y;
- if(y1 % 8 == 0)
- {
- y = y1/8;
- }
- else
- {
- y = y1/8 +1;
- }
- for(y = y0 ; y< y1 ; y++)
- {
- OLED_SetPos(x0 ,y);
- for( x= x0 ; x < x1 ; x++)
- {
- WriteData(BMP[j++]);
- }
- }
- } </i>
复制代码
oled.h
- #ifndef _OLED_H_
- #define _OLED_H_
- #include "stm32f10x.h"
- #define OLED_ADDRESS 0x78
- void I2C_Configuration(void);
- void I2C_WriteByte(uint8_t addr , uint8_t data);
- void WriteCmd(unsigned char I2C_Cmd);
- void WriteData(unsigned char I2C_Data);
- void OLED_Init(void);
- void OLED_SetPos(unsigned char x, unsigned char y);
- void OLED_Full(unsigned char Full_Data);
- void OLED_Clear(void);
- void OLED_Open(void);
- void OLED_Close(void);
- void OLED_ShowStr(unsigned char x, unsigned char y , unsigned char ch[] , unsigned TestSize);
- void OLED_ShowCn(unsigned char x, unsigned char y , unsigned char N);
- #endif
复制代码
OLED_Codetab.h
- //字符头文件
- const unsigned char F16X16[] =
- {
- 0x00,0x00,0x00,0xE0,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,0x20,0x40,0x80,0x00,0x00,
- 0x08,0x04,0x03,0x00,0x00,0x40,0x80,0x7F,0x00,0x00,0x00,0x00,0x00,0x01,0x0E,0x00,小",0*/
- 0x00,0x00,0xFE,0xAA,0xAA,0xA9,0xF9,0x00,0xA0,0x9E,0x82,0x82,0x9E,0xA0,0x20,0x00,
- 0x40,0x30,0x0F,0x02,0x22,0x42,0x3E,0x80,0x80,0x43,0x2C,0x10,0x2C,0x43,0x80,0x00,/*殷",1*/
- 0x00,0x00,0xFE,0x02,0x12,0x92,0x92,0x92,0x92,0x92,0x92,0x12,0x02,0xFE,0x00,0x00,
- 0x00,0x00,0xFF,0x00,0x00,0x1F,0x08,0x08,0x08,0x08,0x1F,0x40,0x80,0x7F,0x00,0x00,/*"同",2*/
- 0x40,0x30,0x11,0x96,0x90,0x90,0x91,0x96,0x90,0x90,0x98,0x14,0x13,0x50,0x30,0x00,
- 0x04,0x04,0x04,0x04,0x04,0x44,0x84,0x7E,0x06,0x05,0x04,0x04,0x04,0x04,0x04,0x00,/*"学",3*/
- };
- //这个汉字的代码根据字模软件来看就好了
- /*
- const unsigned char BMP[] =
- {
-
-
-
- };
- */
- //图像代码
- const unsigned char F6X8[][6] =
- {
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,// sp
- 0x00, 0x00, 0x00, 0x2f, 0x00, 0x00,// !
- 0x00, 0x00, 0x07, 0x00, 0x07, 0x00,// "
- 0x00, 0x14, 0x7f, 0x14, 0x7f, 0x14,// #
- 0x00, 0x24, 0x2a, 0x7f, 0x2a, 0x12,// $
- 0x00, 0x62, 0x64, 0x08, 0x13, 0x23,// %
- 0x00, 0x36, 0x49, 0x55, 0x22, 0x50,// &
- 0x00, 0x00, 0x05, 0x03, 0x00, 0x00,// '
- 0x00, 0x00, 0x1c, 0x22, 0x41, 0x00,// (
- 0x00, 0x00, 0x41, 0x22, 0x1c, 0x00,// )
- 0x00, 0x14, 0x08, 0x3E, 0x08, 0x14,// *
- 0x00, 0x08, 0x08, 0x3E, 0x08, 0x08,// +
- 0x00, 0x00, 0x00, 0xA0, 0x60, 0x00,// ,
- 0x00, 0x08, 0x08, 0x08, 0x08, 0x08,// -
- 0x00, 0x00, 0x60, 0x60, 0x00, 0x00,// .
- 0x00, 0x20, 0x10, 0x08, 0x04, 0x02,// /
- 0x00, 0x3E, 0x51, 0x49, 0x45, 0x3E,// 0
- 0x00, 0x00, 0x42, 0x7F, 0x40, 0x00,// 1
- 0x00, 0x42, 0x61, 0x51, 0x49, 0x46,// 2
- 0x00, 0x21, 0x41, 0x45, 0x4B, 0x31,// 3
- 0x00, 0x18, 0x14, 0x12, 0x7F, 0x10,// 4
- 0x00, 0x27, 0x45, 0x45, 0x45, 0x39,// 5
- 0x00, 0x3C, 0x4A, 0x49, 0x49, 0x30,// 6
- 0x00, 0x01, 0x71, 0x09, 0x05, 0x03,// 7
- 0x00, 0x36, 0x49, 0x49, 0x49, 0x36,// 8
- 0x00, 0x06, 0x49, 0x49, 0x29, 0x1E,// 9
- 0x00, 0x00, 0x36, 0x36, 0x00, 0x00,// :
- 0x00, 0x00, 0x56, 0x36, 0x00, 0x00,// ;
- 0x00, 0x08, 0x14, 0x22, 0x41, 0x00,// <
- 0x00, 0x14, 0x14, 0x14, 0x14, 0x14,// =
- 0x00, 0x00, 0x41, 0x22, 0x14, 0x08,// >
- 0x00, 0x02, 0x01, 0x51, 0x09, 0x06,// ?
- 0x00, 0x32, 0x49, 0x59, 0x51, 0x3E,// @
- 0x00, 0x7C, 0x12, 0x11, 0x12, 0x7C,// A
- 0x00, 0x7F, 0x49, 0x49, 0x49, 0x36,// B
- 0x00, 0x3E, 0x41, 0x41, 0x41, 0x22,// C
- 0x00, 0x7F, 0x41, 0x41, 0x22, 0x1C,// D
- 0x00, 0x7F, 0x49, 0x49, 0x49, 0x41,// E
- 0x00, 0x7F, 0x09, 0x09, 0x09, 0x01,// F
- 0x00, 0x3E, 0x41, 0x49, 0x49, 0x7A,// G
- 0x00, 0x7F, 0x08, 0x08, 0x08, 0x7F,// H
- 0x00, 0x00, 0x41, 0x7F, 0x41, 0x00,// I
- 0x00, 0x20, 0x40, 0x41, 0x3F, 0x01,// J
- 0x00, 0x7F, 0x08, 0x14, 0x22, 0x41,// K
- 0x00, 0x7F, 0x40, 0x40, 0x40, 0x40,// L
- 0x00, 0x7F, 0x02, 0x0C, 0x02, 0x7F,// M
- 0x00, 0x7F, 0x04, 0x08, 0x10, 0x7F,// N
- 0x00, 0x3E, 0x41, 0x41, 0x41, 0x3E,// O
- 0x00, 0x7F, 0x09, 0x09, 0x09, 0x06,// P
- 0x00, 0x3E, 0x41, 0x51, 0x21, 0x5E,// Q
- 0x00, 0x7F, 0x09, 0x19, 0x29, 0x46,// R
- 0x00, 0x46, 0x49, 0x49, 0x49, 0x31,// S
- 0x00, 0x01, 0x01, 0x7F, 0x01, 0x01,// T
- 0x00, 0x3F, 0x40, 0x40, 0x40, 0x3F,// U
- 0x00, 0x1F, 0x20, 0x40, 0x20, 0x1F,// V
- 0x00, 0x3F, 0x40, 0x38, 0x40, 0x3F,// W
- 0x00, 0x63, 0x14, 0x08, 0x14, 0x63,// X
- 0x00, 0x07, 0x08, 0x70, 0x08, 0x07,// Y
- 0x00, 0x61, 0x51, 0x49, 0x45, 0x43,// Z
- 0x00, 0x00, 0x7F, 0x41, 0x41, 0x00,// [
- 0x00, 0x55, 0x2A, 0x55, 0x2A, 0x55,// 55
- 0x00, 0x00, 0x41, 0x41, 0x7F, 0x00,// ]
- 0x00, 0x04, 0x02, 0x01, 0x02, 0x04,// ^
- 0x00, 0x40, 0x40, 0x40, 0x40, 0x40,// _
- 0x00, 0x00, 0x01, 0x02, 0x04, 0x00,// '
- 0x00, 0x20, 0x54, 0x54, 0x54, 0x78,// a
- 0x00, 0x7F, 0x48, 0x44, 0x44, 0x38,// b
- 0x00, 0x38, 0x44, 0x44, 0x44, 0x20,// c
- 0x00, 0x38, 0x44, 0x44, 0x48, 0x7F,// d
- 0x00, 0x38, 0x54, 0x54, 0x54, 0x18,// e
- 0x00, 0x08, 0x7E, 0x09, 0x01, 0x02,// f
- 0x00, 0x18, 0xA4, 0xA4, 0xA4, 0x7C,// g
- 0x00, 0x7F, 0x08, 0x04, 0x04, 0x78,// h
- 0x00, 0x00, 0x44, 0x7D, 0x40, 0x00,// i
- 0x00, 0x40, 0x80, 0x84, 0x7D, 0x00,// j
- 0x00, 0x7F, 0x10, 0x28, 0x44, 0x00,// k
- 0x00, 0x00, 0x41, 0x7F, 0x40, 0x00,// l
- 0x00, 0x7C, 0x04, 0x18, 0x04, 0x78,// m
- 0x00, 0x7C, 0x08, 0x04, 0x04, 0x78,// n
- 0x00, 0x38, 0x44, 0x44, 0x44, 0x38,// o
- 0x00, 0xFC, 0x24, 0x24, 0x24, 0x18,// p
- 0x00, 0x18, 0x24, 0x24, 0x18, 0xFC,// q
- 0x00, 0x7C, 0x08, 0x04, 0x04, 0x08,// r
- 0x00, 0x48, 0x54, 0x54, 0x54, 0x20,// s
- 0x00, 0x04, 0x3F, 0x44, 0x40, 0x20,// t
- 0x00, 0x3C, 0x40, 0x40, 0x20, 0x7C,// u
- 0x00, 0x1C, 0x20, 0x40, 0x20, 0x1C,// v
- 0x00, 0x3C, 0x40, 0x30, 0x40, 0x3C,// w
- 0x00, 0x44, 0x28, 0x10, 0x28, 0x44,// x
- 0x00, 0x1C, 0xA0, 0xA0, 0xA0, 0x7C,// y
- 0x00, 0x44, 0x64, 0x54, 0x4C, 0x44,// z
- 0x14, 0x14, 0x14, 0x14, 0x14, 0x14,// horiz lines
- };
- const unsigned char F8X16[]=
- {
- 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,// 0
- 0x00,0x00,0x00,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x33,0x30,0x00,0x00,0x00,//! 1
- 0x00,0x10,0x0C,0x06,0x10,0x0C,0x06,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//" 2
- 0x40,0xC0,0x78,0x40,0xC0,0x78,0x40,0x00,0x04,0x3F,0x04,0x04,0x3F,0x04,0x04,0x00,//# 3
- 0x00,0x70,0x88,0xFC,0x08,0x30,0x00,0x00,0x00,0x18,0x20,0xFF,0x21,0x1E,0x00,0x00,//$ 4
- 0xF0,0x08,0xF0,0x00,0xE0,0x18,0x00,0x00,0x00,0x21,0x1C,0x03,0x1E,0x21,0x1E,0x00,//% 5
- 0x00,0xF0,0x08,0x88,0x70,0x00,0x00,0x00,0x1E,0x21,0x23,0x24,0x19,0x27,0x21,0x10,//& 6
- 0x10,0x16,0x0E,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//' 7
- 0x00,0x00,0x00,0xE0,0x18,0x04,0x02,0x00,0x00,0x00,0x00,0x07,0x18,0x20,0x40,0x00,//( 8
- 0x00,0x02,0x04,0x18,0xE0,0x00,0x00,0x00,0x00,0x40,0x20,0x18,0x07,0x00,0x00,0x00,//) 9
- 0x40,0x40,0x80,0xF0,0x80,0x40,0x40,0x00,0x02,0x02,0x01,0x0F,0x01,0x02,0x02,0x00,//* 10
- 0x00,0x00,0x00,0xF0,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x1F,0x01,0x01,0x01,0x00,//+ 11
- 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xB0,0x70,0x00,0x00,0x00,0x00,0x00,//, 12
- 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01,//- 13
- 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,0x00,0x00,//. 14
- 0x00,0x00,0x00,0x00,0x80,0x60,0x18,0x04,0x00,0x60,0x18,0x06,0x01,0x00,0x00,0x00,/// 15
- 0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x0F,0x10,0x20,0x20,0x10,0x0F,0x00,//0 16
- 0x00,0x10,0x10,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//1 17
- 0x00,0x70,0x08,0x08,0x08,0x88,0x70,0x00,0x00,0x30,0x28,0x24,0x22,0x21,0x30,0x00,//2 18
- 0x00,0x30,0x08,0x88,0x88,0x48,0x30,0x00,0x00,0x18,0x20,0x20,0x20,0x11,0x0E,0x00,//3 19
- 0x00,0x00,0xC0,0x20,0x10,0xF8,0x00,0x00,0x00,0x07,0x04,0x24,0x24,0x3F,0x24,0x00,//4 20
- 0x00,0xF8,0x08,0x88,0x88,0x08,0x08,0x00,0x00,0x19,0x21,0x20,0x20,0x11,0x0E,0x00,//5 21
- 0x00,0xE0,0x10,0x88,0x88,0x18,0x00,0x00,0x00,0x0F,0x11,0x20,0x20,0x11,0x0E,0x00,//6 22
- 0x00,0x38,0x08,0x08,0xC8,0x38,0x08,0x00,0x00,0x00,0x00,0x3F,0x00,0x00,0x00,0x00,//7 23
- 0x00,0x70,0x88,0x08,0x08,0x88,0x70,0x00,0x00,0x1C,0x22,0x21,0x21,0x22,0x1C,0x00,//8 24
- 0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x00,0x31,0x22,0x22,0x11,0x0F,0x00,//9 25
- 0x00,0x00,0x00,0xC0,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,//: 26
- 0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x60,0x00,0x00,0x00,0x00,//; 27
- 0x00,0x00,0x80,0x40,0x20,0x10,0x08,0x00,0x00,0x01,0x02,0x04,0x08,0x10,0x20,0x00,//< 28
- 0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x00,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x00,//= 29
- 0x00,0x08,0x10,0x20,0x40,0x80,0x00,0x00,0x00,0x20,0x10,0x08,0x04,0x02,0x01,0x00,//> 30
- 0x00,0x70,0x48,0x08,0x08,0x08,0xF0,0x00,0x00,0x00,0x00,0x30,0x36,0x01,0x00,0x00,//? 31
- 0xC0,0x30,0xC8,0x28,0xE8,0x10,0xE0,0x00,0x07,0x18,0x27,0x24,0x23,0x14,0x0B,0x00,//@ 32
- 0x00,0x00,0xC0,0x38,0xE0,0x00,0x00,0x00,0x20,0x3C,0x23,0x02,0x02,0x27,0x38,0x20,//A 33
- 0x08,0xF8,0x88,0x88,0x88,0x70,0x00,0x00,0x20,0x3F,0x20,0x20,0x20,0x11,0x0E,0x00,//B 34
- 0xC0,0x30,0x08,0x08,0x08,0x08,0x38,0x00,0x07,0x18,0x20,0x20,0x20,0x10,0x08,0x00,//C 35
- 0x08,0xF8,0x08,0x08,0x08,0x10,0xE0,0x00,0x20,0x3F,0x20,0x20,0x20,0x10,0x0F,0x00,//D 36
- 0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,0x20,0x3F,0x20,0x20,0x23,0x20,0x18,0x00,//E 37
- 0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,0x20,0x3F,0x20,0x00,0x03,0x00,0x00,0x00,//F 38
- 0xC0,0x30,0x08,0x08,0x08,0x38,0x00,0x00,0x07,0x18,0x20,0x20,0x22,0x1E,0x02,0x00,//G 39
- 0x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,0x20,0x3F,0x21,0x01,0x01,0x21,0x3F,0x20,//H 40
- 0x00,0x08,0x08,0xF8,0x08,0x08,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//I 41
- 0x00,0x00,0x08,0x08,0xF8,0x08,0x08,0x00,0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,0x00,//J 42
- 0x08,0xF8,0x88,0xC0,0x28,0x18,0x08,0x00,0x20,0x3F,0x20,0x01,0x26,0x38,0x20,0x00,//K 43
- 0x08,0xF8,0x08,0x00,0x00,0x00,0x00,0x00,0x20,0x3F,0x20,0x20,0x20,0x20,0x30,0x00,//L 44
- 0x08,0xF8,0xF8,0x00,0xF8,0xF8,0x08,0x00,0x20,0x3F,0x00,0x3F,0x00,0x3F,0x20,0x00,//M 45
- 0x08,0xF8,0x30,0xC0,0x00,0x08,0xF8,0x08,0x20,0x3F,0x20,0x00,0x07,0x18,0x3F,0x00,//N 46
- 0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,0x0F,0x10,0x20,0x20,0x20,0x10,0x0F,0x00,//O 47
- 0x08,0xF8,0x08,0x08,0x08,0x08,0xF0,0x00,0x20,0x3F,0x21,0x01,0x01,0x01,0x00,0x00,//P 48
- 0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,0x0F,0x18,0x24,0x24,0x38,0x50,0x4F,0x00,//Q 49
- 0x08,0xF8,0x88,0x88,0x88,0x88,0x70,0x00,0x20,0x3F,0x20,0x00,0x03,0x0C,0x30,0x20,//R 50
- 0x00,0x70,0x88,0x08,0x08,0x08,0x38,0x00,0x00,0x38,0x20,0x21,0x21,0x22,0x1C,0x00,//S 51
- 0x18,0x08,0x08,0xF8,0x08,0x08,0x18,0x00,0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00,//T 52
- 0x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00,//U 53
- 0x08,0x78,0x88,0x00,0x00,0xC8,0x38,0x08,0x00,0x00,0x07,0x38,0x0E,0x01,0x00,0x00,//V 54
- 0xF8,0x08,0x00,0xF8,0x00,0x08,0xF8,0x00,0x03,0x3C,0x07,0x00,0x07,0x3C,0x03,0x00,//W 55
- 0x08,0x18,0x68,0x80,0x80,0x68,0x18,0x08,0x20,0x30,0x2C,0x03,0x03,0x2C,0x30,0x20,//X 56
- 0x08,0x38,0xC8,0x00,0xC8,0x38,0x08,0x00,0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00,//Y 57
- 0x10,0x08,0x08,0x08,0xC8,0x38,0x08,0x00,0x20,0x38,0x26,0x21,0x20,0x20,0x18,0x00,//Z 58
- 0x00,0x00,0x00,0xFE,0x02,0x02,0x02,0x00,0x00,0x00,0x00,0x7F,0x40,0x40,0x40,0x00,//[ 59
- 0x00,0x0C,0x30,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x06,0x38,0xC0,0x00,//\ 60
- 0x00,0x02,0x02,0x02,0xFE,0x00,0x00,0x00,0x00,0x40,0x40,0x40,0x7F,0x00,0x00,0x00,//] 61
- 0x00,0x00,0x04,0x02,0x02,0x02,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//^ 62
- 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,//_ 63
- 0x00,0x02,0x02,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//` 64
- 0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x19,0x24,0x22,0x22,0x22,0x3F,0x20,//a 65
- 0x08,0xF8,0x00,0x80,0x80,0x00,0x00,0x00,0x00,0x3F,0x11,0x20,0x20,0x11,0x0E,0x00,//b 66
- 0x00,0x00,0x00,0x80,0x80,0x80,0x00,0x00,0x00,0x0E,0x11,0x20,0x20,0x20,0x11,0x00,//c 67
- 0x00,0x00,0x00,0x80,0x80,0x88,0xF8,0x00,0x00,0x0E,0x11,0x20,0x20,0x10,0x3F,0x20,//d 68
- 0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x1F,0x22,0x22,0x22,0x22,0x13,0x00,//e 69
- 0x00,0x80,0x80,0xF0,0x88,0x88,0x88,0x18,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//f 70
- 0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x6B,0x94,0x94,0x94,0x93,0x60,0x00,//g 71
- 0x08,0xF8,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20,//h 72
- 0x00,0x80,0x98,0x98,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//i 73
- 0x00,0x00,0x00,0x80,0x98,0x98,0x00,0x00,0x00,0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,//j 74
- 0x08,0xF8,0x00,0x00,0x80,0x80,0x80,0x00,0x20,0x3F,0x24,0x02,0x2D,0x30,0x20,0x00,//k 75
- 0x00,0x08,0x08,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//l 76
- 0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x00,0x20,0x3F,0x20,0x00,0x3F,0x20,0x00,0x3F,//m 77
- 0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20,//n 78
- 0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00,//o 79
- 0x80,0x80,0x00,0x80,0x80,0x00,0x00,0x00,0x80,0xFF,0xA1,0x20,0x20,0x11,0x0E,0x00,//p 80
- 0x00,0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x0E,0x11,0x20,0x20,0xA0,0xFF,0x80,//q 81
- 0x80,0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x20,0x20,0x3F,0x21,0x20,0x00,0x01,0x00,//r 82
- 0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x33,0x24,0x24,0x24,0x24,0x19,0x00,//s 83
- 0x00,0x80,0x80,0xE0,0x80,0x80,0x00,0x00,0x00,0x00,0x00,0x1F,0x20,0x20,0x00,0x00,//t 84
- 0x80,0x80,0x00,0x00,0x00,0x80,0x80,0x00,0x00,0x1F,0x20,0x20,0x20,0x10,0x3F,0x20,//u 85
- 0x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,0x00,0x01,0x0E,0x30,0x08,0x06,0x01,0x00,//v 86
- 0x80,0x80,0x00,0x80,0x00,0x80,0x80,0x80,0x0F,0x30,0x0C,0x03,0x0C,0x30,0x0F,0x00,//w 87
- 0x00,0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x31,0x2E,0x0E,0x31,0x20,0x00,//x 88
- 0x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,0x80,0x81,0x8E,0x70,0x18,0x06,0x01,0x00,//y 89
- 0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x21,0x30,0x2C,0x22,0x21,0x30,0x00,//z 90
- 0x00,0x00,0x00,0x00,0x80,0x7C,0x02,0x02,0x00,0x00,0x00,0x00,0x00,0x3F,0x40,0x40,//{ 91
- 0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,//| 92
- 0x00,0x02,0x02,0x7C,0x80,0x00,0x00,0x00,0x00,0x40,0x40,0x3F,0x00,0x00,0x00,0x00,//} 93
- 0x00,0x06,0x01,0x01,0x02,0x02,0x04,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//~ 94
- };
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main.c
- #include "stm32f10x.h"
- #include "SysTick.h"
- #include "oled.h"
- int main(void)
- {
- ms_delay(1500);
- I2C_Configuration();
- OLED_Init();
- ms_delay(2000);
- OLED_Full(0XFF);
- ms_delay(2000);
- OLED_Full(0X00);
- ms_delay(2000);
- OLED_ShowStr(0,3," Hello world",1);
- OLED_ShowStr(0,4,"Hello world",2);
- while(1)
- {
-
- }
- }
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版权声明:@slow-walker
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