使用STM32F103 C8T6 驅(qū)動(dòng)0.96寸單色OLED顯示屏:
OLED顯示屏的驅(qū)動(dòng),在設(shè)計(jì)開發(fā)中OLED顯示屏十分常見,因此今日學(xué)習(xí)一下。一篇文章從程序到顯示都講通。
文章提供源碼、原理解釋、測(cè)試工程下載,測(cè)試效果圖展示。
?文章來(lái)源地址http://www.zghlxwxcb.cn/news/detail-658273.html
目錄
OLED驅(qū)動(dòng)原理—IIC通信:
SSD1306 單色 0.96 OLED 顯示屏特性
程序理解與設(shè)計(jì):
1.操作時(shí)序—寫命令、寫數(shù)據(jù):
二、清屏命令:
三、初始化SSD1306顯示:
四、開啟與關(guān)閉指令:
五、OLED坐標(biāo)設(shè)置:
六、常用ASCLL碼字符字庫(kù):
七、字符顯示函數(shù):
程序設(shè)計(jì):
測(cè)試效果:
測(cè)試工程下載:
OLED驅(qū)動(dòng)原理—IIC通信:
這里是基礎(chǔ)原理,可以大致瀏覽即可,有個(gè)基本印象:
下圖為 0.96寸單色OLED,他們有四個(gè)針腳:VCC GND SCK SDA?
?前倆個(gè)就是供電的,后倆個(gè)是IIC通信接口,與單片機(jī)通信。
SSD1306 單色 0.96 OLED 顯示屏特性
- OLED顯示屏可以從最大160度的各個(gè)角度觀看。
- 該顯示器支持 3v 和 5v 電源,這使得它可以與 3.3V 和 5V 邏輯一起工作。
- SSD1306驅(qū)動(dòng)程序及其庫(kù)使OLED可以通過(guò)簡(jiǎn)單的命令顯示字符和位圖。
- 不同顏色的 OLED 也可供選擇,甚至不同尺寸也可供選擇。
- 與 LCD 相比,OLED 顯示屏尺寸更小,顯示效果更好
0.96 寸OLED顯示屏所用的驅(qū)動(dòng)IC為SSD1306;
其具有內(nèi)部升壓功能;所以在設(shè)計(jì)的時(shí)候不需要再專一設(shè)計(jì)升壓電路;
當(dāng)然了本屏也可以選用外部升壓。
SSD1306的每頁(yè)包含了128個(gè)字節(jié),總共8頁(yè),這樣剛好是 128*64 的點(diǎn)陣大小。
由上圖可知,0.96寸OLED有八頁(yè),128列,每一頁(yè)又有8小行:
對(duì)于一個(gè)0.96寸OLED,有8頁(yè)(也可以稱為8個(gè)水平掃描線)和128列。通過(guò)8頁(yè)和128列,可以操作所有64x128個(gè)像素點(diǎn)。
第一步是控制頁(yè)數(shù):
OLED屏幕的每一頁(yè)都是由一組水平掃描線構(gòu)成的,每次只能顯示一頁(yè)。通過(guò)控制頁(yè)數(shù)的切換,我們可以在屏幕上顯示不同的內(nèi)容??偣灿?頁(yè),可以通過(guò)指令來(lái)切換到目標(biāo)頁(yè)。
第二步是控制列數(shù):
在每一頁(yè)上,OLED屏幕有128列。列數(shù)確定了水平方向的像素點(diǎn)位置。我們可以通過(guò)指令來(lái)選擇在特定頁(yè)上的目標(biāo)列。
這樣,我們可以通過(guò)控制頁(yè)數(shù)和列數(shù)的組合來(lái)操作到所有64x128個(gè)像素點(diǎn)??梢愿鶕?jù)需要在特定的頁(yè)和列上顯示圖形、文字或其他內(nèi)容。
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程序理解與設(shè)計(jì):
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1.操作時(shí)序—寫命令、寫數(shù)據(jù):
由上圖可知,在通過(guò)IIC嘗試控制OLED時(shí),有倆個(gè)主要的操作:1.寫數(shù)據(jù)0x40 ? 2.寫命令0x00
?因此寫指令與寫數(shù)據(jù)的操作過(guò)程完全一致,只是寫入指令與數(shù)據(jù)的寄存器不同,一個(gè)是0x00,一個(gè)是0x40,選擇好了寫入的寄存器是指令還是數(shù)據(jù)后,就能傳遞我們具體的指令或者數(shù)據(jù)了:
/**********************************************
// IIC Write Command
**********************************************/
void Write_IIC_Command(unsigned char IIC_Command)
{
IIC_Start();
Write_IIC_Byte(0x78); //Slave address,SA0=0
IIC_Wait_Ack();
Write_IIC_Byte(0x00); //write command
IIC_Wait_Ack();
Write_IIC_Byte(IIC_Command);
IIC_Wait_Ack();
IIC_Stop();
}
/**********************************************
// IIC Write Data
**********************************************/
void Write_IIC_Data(unsigned char IIC_Data)
{
IIC_Start();
Write_IIC_Byte(0x78); //D/C#=0; R/W#=0
IIC_Wait_Ack();
Write_IIC_Byte(0x40); //write data
IIC_Wait_Ack();
Write_IIC_Byte(IIC_Data);
IIC_Wait_Ack();
IIC_Stop();
}
二、清屏命令:
接下來(lái)講解一下清屏命令,從這個(gè)命令我們可以初步明白一下:寫命令與寫數(shù)據(jù)具體代表什么,以及8頁(yè),128列,究竟是怎么操作的:
首先是整了一個(gè)寫入函數(shù),這個(gè)函數(shù)沒有別的意思,就是整合了Write_IIC_Command()與Write_IIC_Data(),起到了有命令寫命令,有數(shù)據(jù)寫數(shù)據(jù)的效果,主要是方便后續(xù)程序編寫,不管寫數(shù)據(jù)還是命令,直接調(diào)用它就行了。
它有倆個(gè)參數(shù):第一個(gè)參數(shù)dat是數(shù)據(jù),第二個(gè)參數(shù)cmd就是選擇這個(gè)dat數(shù)據(jù)是寫入命令寄存器的還是寫入數(shù)據(jù)寄存器的。
期間還寫了倆個(gè)宏定義,用來(lái)提醒自己,這里的步驟是寫命令寄存器的還是寫數(shù)據(jù)寄存器的:
#define OLED_CMD 0 //寫命令
#define OLED_DATA 1 //寫數(shù)據(jù)
void OLED_WR_Byte(unsigned dat,unsigned cmd)
{
if(cmd)
{ Write_IIC_Data(dat);}
else
{ Write_IIC_Command(dat);}
}
//清屏函數(shù),清完屏,整個(gè)屏幕是黑色的!和沒點(diǎn)亮一樣!!!
void OLED_Clear(void)
{
u8 i,n;
for(i=0;i<8;i++)
{
OLED_WR_Byte (0xb0+i,OLED_CMD); //設(shè)置頁(yè)地址(0~7)
OLED_WR_Byte (0x00,OLED_CMD); //設(shè)置顯示位置—列低地址
OLED_WR_Byte (0x10,OLED_CMD); //設(shè)置顯示位置—列高地址
for(n=0;n<128;n++)OLED_WR_Byte(0,OLED_DATA);
} //更新顯示
}
我們可以看到,整個(gè)函數(shù)一進(jìn)入就是進(jìn)行一個(gè)8次的循環(huán),每次循環(huán)進(jìn)入:
首先就會(huì)先選擇哪一頁(yè)需要清空,而OLED共有八頁(yè),因此需要循環(huán)八次來(lái)選擇0~7這八個(gè)頁(yè)號(hào)~
其次選擇哪一列需要清空,因?yàn)檫@是個(gè)屏幕,我們使用平面直角坐標(biāo)系里確定一個(gè)點(diǎn)來(lái)理解,如果OLED是橫向顯示的,前面的頁(yè)就好比確定了Y坐標(biāo),這里的列就是確定了X坐標(biāo),這樣,先確定了Y,再內(nèi)套一個(gè)循環(huán)128次,依次選擇一列上的X進(jìn)行清空。
綜上:這個(gè)函數(shù)總共是8*128個(gè)循環(huán)操作,才使得OLED全部清空~~~
三、初始化SSD1306顯示:
這部分初始化分為單片機(jī)IIC引腳的初始化、以及對(duì)SSD1306寫入一些必要命令的初始化
在 單片機(jī)IIC引腳的初始化 方面不多說(shuō),而對(duì)SSD1306寫入一些必要命令方面,我們可以通過(guò)我的注釋看出,有對(duì)比度、反顯等可以設(shè)置,具體寫入什么進(jìn)行設(shè)置可以百度,我這配的都是正常的通用設(shè)置:這種寫命令,一般都是先寫寄存器,在寫數(shù)據(jù)設(shè)置:
//初始化SSD1306
void OLED_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure; //定義初始化結(jié)構(gòu)體
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE); //使能APB2端口時(shí)鐘
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6|GPIO_Pin_7; //初始化B6,B7
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; //推挽輸出
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; //速度50MHz
GPIO_Init(GPIOB, &GPIO_InitStructure); //初始化GPIOB
GPIO_SetBits(GPIOB,GPIO_Pin_6|GPIO_Pin_7);
delay_ms(100);
OLED_WR_Byte(0xAE,OLED_CMD);//--display off 關(guān)閉顯示屏
OLED_WR_Byte(0x00,OLED_CMD);//---set low column address 設(shè)置低列地址
OLED_WR_Byte(0x10,OLED_CMD);//---set high column address 設(shè)置高列地址
OLED_WR_Byte(0x40,OLED_CMD);//--set start line address 設(shè)置起始行地址
OLED_WR_Byte(0xB0,OLED_CMD);//--set page address 設(shè)置頁(yè)地址
OLED_WR_Byte(0x81,OLED_CMD); // contract control 設(shè)置對(duì)比度控制
OLED_WR_Byte(0xFF,OLED_CMD);//--128 對(duì)比度值設(shè)置為128
OLED_WR_Byte(0xA1,OLED_CMD);//set segment remap 設(shè)置段重映射
OLED_WR_Byte(0xA6,OLED_CMD);//--normal / reverse 設(shè)置正常顯示/反向顯示
OLED_WR_Byte(0xA8,OLED_CMD);//--set multiplex ratio(1 to 64) 設(shè)置多路復(fù)用比率(1到64)
OLED_WR_Byte(0x3F,OLED_CMD);//--1/32 duty 設(shè)置Duty值為1/32
OLED_WR_Byte(0xC8,OLED_CMD);//Com scan direction 設(shè)置COM掃描方向
OLED_WR_Byte(0xD3,OLED_CMD);//-set display offset 設(shè)置顯示偏移
OLED_WR_Byte(0x00,OLED_CMD);// 設(shè)置顯示起始行
OLED_WR_Byte(0xD5,OLED_CMD);//set osc division 設(shè)置振蕩器分頻
OLED_WR_Byte(0x80,OLED_CMD);// 設(shè)置振蕩器分頻值為80
OLED_WR_Byte(0xD8,OLED_CMD);//set area color mode off 設(shè)置區(qū)域顏色模式關(guān)閉
OLED_WR_Byte(0x05,OLED_CMD);// 設(shè)置區(qū)域顏色模式值為05
OLED_WR_Byte(0xD9,OLED_CMD);//Set Pre-Charge Period 設(shè)置預(yù)充電周期
OLED_WR_Byte(0xF1,OLED_CMD);// 設(shè)置預(yù)充電周期值為F1
OLED_WR_Byte(0xDA,OLED_CMD);//set com pin configuartion 設(shè)置COM引腳配置
OLED_WR_Byte(0x12,OLED_CMD);// 設(shè)置COM引腳配置值為12
OLED_WR_Byte(0xDB,OLED_CMD);//set Vcomh 設(shè)置Vcomh
OLED_WR_Byte(0x30,OLED_CMD);// 設(shè)置Vcomh值為30
OLED_WR_Byte(0x8D,OLED_CMD);//set charge pump enable 設(shè)置充電泵使能
OLED_WR_Byte(0x14,OLED_CMD);// 設(shè)置充電泵使能值為14
OLED_WR_Byte(0xAF,OLED_CMD);//--turn on oled panel 打開顯示屏
}
四、開啟與關(guān)閉指令:
這是OLED開啟與關(guān)閉的函數(shù),主要原理也是向它的寄存器寫數(shù)據(jù)命令,可以快捷開啟關(guān)閉OLED,一般程序初始化時(shí)會(huì)關(guān)閉OLED,防止亂顯示,初始化完成后打開即可:
有時(shí)開機(jī)刷新比較慢,像素可能會(huì)一行一行刷出來(lái),這時(shí)可以先調(diào)用 OLED_Display_Off(),在緊接著調(diào)用刷新顯示的函數(shù),然后在調(diào)用OLED_Display_On(),像素就不會(huì)一行一行刷出來(lái)了~~原理就是等他刷新顯示的函數(shù)循環(huán)加載完成了,再整個(gè)打開OLED:
//開啟OLED顯示
void OLED_Display_On(void)
{
OLED_WR_Byte(0X8D,OLED_CMD); //SET DCDC命令
OLED_WR_Byte(0X14,OLED_CMD); //DCDC ON
OLED_WR_Byte(0XAF,OLED_CMD); //DISPLAY ON
}
//關(guān)閉OLED顯示
void OLED_Display_Off(void)
{
OLED_WR_Byte(0X8D,OLED_CMD); //SET DCDC命令
OLED_WR_Byte(0X10,OLED_CMD); //DCDC OFF
OLED_WR_Byte(0XAE,OLED_CMD); //DISPLAY OFF
}
五、OLED坐標(biāo)設(shè)置:
這是設(shè)置OLED顯示繪制起點(diǎn)的函數(shù),每種文字,圖像都有占用的范圍,比如宋體漢字,每個(gè)字一般占用16*16像素,而字母可以占用更少的像素區(qū)域~~:
//坐標(biāo)設(shè)置
void OLED_Set_Pos(unsigned char x, unsigned char y)
{
OLED_WR_Byte(0xb0+y,OLED_CMD);
OLED_WR_Byte(((x&0xf0)>>4)|0x10,OLED_CMD);
OLED_WR_Byte((x&0x0f),OLED_CMD);
}
?如圖可以更直觀理解一個(gè)中文字是怎么點(diǎn)亮的,小框代表一個(gè)中文字需要占用的像素區(qū),大框就是OLED全部顯示區(qū),Y坐標(biāo)代表頁(yè),X坐標(biāo)代表列。
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六、常用ASCLL碼字符字庫(kù):
?這是常用ASCLL碼字符字庫(kù),分倆種大小:12*6以及16*8的字母:這個(gè)直接復(fù)制使用即可:
//常用ASCII表
//偏移量32
//ASCII字符集
//偏移量32
//大小:12*6
/************************************6*8的點(diǎn)陣************************************/
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
};
/****************************************8*16的點(diǎn)陣************************************/
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
};
七、字符顯示函數(shù):
?這是在指定位置顯示一個(gè)字符的函數(shù),X,Y是它的起始區(qū)域,chr就是該字符的ASCLL碼,Size是選擇它的顯示占用像素點(diǎn),16*8還是12*6(本質(zhì)上是引用六中的常用字庫(kù));
//在指定位置顯示一個(gè)字符,包括部分字符
//x:0~127
//y:0~63
//mode:0,反白顯示;1,正常顯示
//size:選擇字體 16/12
void OLED_ShowChar(u8 x,u8 y,u8 chr,u8 Char_Size)
{
unsigned char c=0,i=0;
c=chr-' ';//得到偏移后的值
if(x>Max_Column-1){x=0;y=y+2;}
if(Char_Size ==16)
{
OLED_Set_Pos(x,y);
for(i=0;i<8;i++)
OLED_WR_Byte(F8X16[c*16+i],OLED_DATA);
OLED_Set_Pos(x,y+1);
for(i=0;i<8;i++)
OLED_WR_Byte(F8X16[c*16+i+8],OLED_DATA);
}
else {
OLED_Set_Pos(x,y);
for(i=0;i<6;i++)
OLED_WR_Byte(F6x8[c][i],OLED_DATA);
}
}
程序設(shè)計(jì):
在坐標(biāo)(0,0)處打印一個(gè)大寫的A(16*8像素),
在坐標(biāo)(12,0)處打印一個(gè)小寫的b(12*6像素),
并全屏閃爍(每0.5秒)。
?
主函數(shù)代碼:
之前 其余函數(shù)代碼都一個(gè)個(gè)講了,因此這里只貼出主函數(shù)代碼:
#include "main.h"
int main(void)
{
init_ALL(); //初始化所有函數(shù)
while(1)
{
OLED_ShowChar(0,0,'A',16);
OLED_ShowChar(12,0,'b',12);
OLED_Display_On();
delay_ms(500);
OLED_Display_Off();
delay_ms(500);
}
}
//初始化所有函數(shù):
void init_ALL(void)
{
SysTick_Init(72); //初始化滴答計(jì)時(shí)器
// Timer2_Init(); //初始化定時(shí)器2
i2c_GPIO_Config(); //IIC初始化
OLED_Init(); //初始化OLED屏幕
OLED_Clear(); //清空屏幕數(shù)據(jù)
}
測(cè)試效果:
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測(cè)試工程下載:
https://download.csdn.net/download/qq_64257614/88232233?spm=1001.2014.3001.5503文章來(lái)源:http://www.zghlxwxcb.cn/news/detail-658273.html
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