STM32 硬件IIC OLED
目录
- OLED屏幕
- OLED屏幕特点
- OLED屏幕接线说明
- OLED屏幕显存
- OLED屏幕原理
- OLED屏幕常用指令
- OLED屏幕字模软件的使用
- 代码
-
- main.c
- oled.h
- oled.c
- codetab.h
- SysTick.h
- SysTick.c
- 遇到的问题
-
- 问题一，oled显示花屏
- 问题二，oled显示错误
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。
OLED屏幕特点
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
OLED屏幕接线说明
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。
OLED屏幕原理
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。
OLED屏幕常用指令
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。
OLED屏幕字模软件的使用
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“。
代码
main.c
#include "stm32f10x.h"
#include "SysTick.h"
#include "oled.h"
extern const unsigned char BMP2[];
int main()
{
unsigned char i = 0;
initSysTick();
I2C_Config();
OLED_Init();
delay_ms(2000);
OLED_Fill(0XFF); //ÆÁÄ»ÁÁ
delay_ms(2000);
OLED_Fill(0X00); //ÆÁÄ»Ãð
delay_ms(2000);
// OLED_ShowStr(0, 3, "Hello World", 1);
// OLED_ShowStr(0, 4, "Hello World", 2);
while (1)
{
for(i=0;i<3;i++)
{
OLED_ShowMouMou(i*16, 0, i);
}
delay_ms(2000);
//显示图片
OLED_DrawBMP(0, 0, 128, 8, (unsigned char *)BMP2);
delay_ms(2000);
}
}
oled.h
#ifndef _OLED_H_
#define _OLED_H_
#include "stm32f10x.h"
#define OLED_ADDRESS 0x78
void I2C_Config(void);
void I2C_WriteByte(uint8_t addr,uint8_t data);
void I2C_WriteCmd(unsigned char I2C_Command);
void I2C_WriteData(unsigned char I2C_Data);
void OLED_Init(void);
void OLED_SetPos(unsigned char x,unsigned char y);
void OLED_Fill(unsigned char Fill_Data);
void OLED_CLS(void);
void OLED_ON(void);
void OLED_OFF(void);
void OLED_ShowStr(unsigned char x,unsigned y,unsigned char ch[],unsigned TextSize);
void OLED_ShowCN(unsigned char x,unsigned y,unsigned char N);
void OLED_ShowMouMou(unsigned char x,unsigned char y,unsigned char N);
#endif
oled.c
#include "stm32f10x.h"
#include "oled.h"
#include "delay.h"
#include "codetab.h"
/**
*¹¦ÄÜ£ºI2CÅäÖÃ
*²ÎÊý£ºvoid
*·µ»ØÖµ£ºvoid
*/
void I2C_Config(void)
{
GPIO_InitTypeDef GPIO_initStruct;
I2C_InitTypeDef I2C_initStruct;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB , ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C1 , ENABLE);
//PB6 -- SCL PB7 -- SDA
GPIO_initStruct.GPIO_Mode = GPIO_Mode_AF_OD;
GPIO_initStruct.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7;
GPIO_initStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOB, &GPIO_initStruct);
I2C_DeInit(I2C1);
I2C_initStruct.I2C_Ack = I2C_Ack_Enable; //Ó¦´ðÊÇ·ñʹÄÜ
I2C_initStruct.I2C_AcknowledgedAddress = I2C_AcknowledgedAddress_7bit; //µØÖ·£¬Êý¾ÝλÊǶàÉÙ£¬ÓÐ7bitºÍ10bit
I2C_initStruct.I2C_ClockSpeed = 400000; //ʱÖÓËÙ¶È 400Kb
I2C_initStruct.I2C_DutyCycle = I2C_DutyCycle_2; // 2:1 »òÕß16:9¶¼ÐÐ
I2C_initStruct.I2C_Mode = I2C_Mode_I2C; //ģʽI2Cģʽ
I2C_initStruct.I2C_OwnAddress1 = 0x30; //Ö÷»úµØÖ·£¬0x30Ëæ±ã¸øµÄ
I2C_Init(I2C1, &I2C_initStruct);
I2C_Cmd(I2C1, ENABLE);
}
/**
*¹¦ÄÜ£ºI2Cд×Ö½Ú
*²ÎÊý£ºaddr µØÖ·£¬data Êý¾Ý
*·µ»ØÖµ£ºvoid
*/
/* ΪɶÏÂÃæûEV8_2¾ÍÖ±½Ó¹Ø±ÕÁË£¬ÓÐwhileÑ»·»áµÈ´ýдÍ꣬ËùÒÔû±ØÒª */
void I2C_WriteByte(uint8_t addr,uint8_t data)
{
while( I2C_GetFlagStatus(I2C1, I2C_FLAG_BUSY)); //¼ì²éI2C×ÜÏßÊÇ·ñ·±Ã¦
I2C_GenerateSTART( I2C1, ENABLE); //¿ªÆôI2C1
while( !I2C_CheckEvent( I2C1 , I2C_EVENT_MASTER_MODE_SELECT )); //EV5 Ö÷ģʽ
I2C_Send7bitAddress(I2C1, OLED_ADDRESS , I2C_Direction_Transmitter ); //·¢ËÍÆ÷¼þµØÖ·
while( !I2C_CheckEvent( I2C1 , I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED )); //EV6
I2C_SendData( I2C1 , addr ); //¼Ä´æÆ÷µØÖ·
while( !I2C_CheckEvent( I2C1 , I2C_EVENT_MASTER_BYTE_TRANSMITTING )); //EV8
I2C_SendData( I2C1 , data ); //Òª·¢Ë͵ÄÊý¾Ý
while( !I2C_CheckEvent( I2C1 , I2C_EVENT_MASTER_BYTE_TRANSMITTING )); //EV8
I2C_GenerateSTOP( I2C1, ENABLE ); //¹Ø±ÕI2C×ÜÏß
}
/**
*¹¦ÄÜ£ºÐ´ÃüÁî
*²ÎÊý£ºI2C_Command ÐèҪдÈëµÄÃüÁî
*·µ»ØÖµ£ºvoid
*/
void WriteCmd(unsigned char I2C_Command)
{
I2C_WriteByte(0x00,I2C_Command);
}
/**
*¹¦ÄÜ£ºÐ´Êý¾Ý
*²ÎÊý£ºI2C_Data ÐèҪдÈëµÄÊý¾Ý
*·µ»ØÖµ£ºvoid
*/
void WriteData(unsigned char I2C_Data)
{
I2C_WriteByte(0x40,I2C_Data);
}
/**
*¹¦ÄÜ£º³õʼ»¯OLED
*²ÎÊý£ºvoid
*·µ»ØÖµ£ºvoid
*/
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
}
/**
*¹¦ÄÜ£ºÉèÖÃ×ø±ê
*²ÎÊý£ºx xÖᣬy yÖá
*·µ»ØÖµ£ºvoid
*/
void OLED_SetPos(unsigned char x,unsigned char y)
{
WriteCmd(0xb0 + y);
WriteCmd((x&0xf0)>>4|0x10);
WriteCmd((x&0x0f)|0x01);
}
/**
*¹¦ÄÜ£ºÈ«ÆÁÌî³ä
*²ÎÊý£ºFill_Data ÐèÒªÌî³äµÄÊý¾Ý
*·µ»ØÖµ£ºvoid
*/
void OLED_Fill(unsigned char Fill_Data)
{
unsigned char n;
unsigned char m;
for(m=0;m<8;m++)
{
WriteCmd(0xb0 + m);
WriteCmd(0x00);
WriteCmd(0x10);
for(n=0;n<128;n++)
{
WriteData(Fill_Data);
}
}
}
/**
*¹¦ÄÜ£ºÇåÆÁ
*²ÎÊý£ºvoid
*·µ»ØÖµ£ºvoid
*/
void OLED_CLS(void)
{
OLED_Fill(0x00);
}
/**
*¹¦ÄÜ£º¿ªÆôOLED
*²ÎÊý£ºvoid
*·µ»ØÖµ£ºvoid
*/
void OLED_ON(void)
{
WriteCmd(0x8D); //ÉèÖõçºÉ±Ã
WriteCmd(0x14); //¿ªÆôµçºÉ±Ã
WriteCmd(0xAF); //¿ªÆôÏÔʾ
}
/**
*¹¦ÄÜ£º¹Ø±ÕOLED
*²ÎÊý£ºvoid
*·µ»ØÖµ£ºvoid
*/
void OLED_OFF(void)
{
WriteCmd(0x8D); //ÉèÖõçºÉ±Ã
WriteCmd(0x10); //¹Ø±ÕµçºÉ±Ã
WriteCmd(0xAE); //¹Ø±ÕÏÔʾ
}
void OLED_ShowStr(unsigned char x,unsigned y,unsigned char ch[],unsigned TextSize)
{
unsigned char c = 0;
unsigned char i = 0;
unsigned char j = 0;
switch(TextSize) //Ñ¡Ôñģʽ
{
case 1:
{
while(ch[j] != '\0') //ÅжÏÊÇ·ñµ½´ï×îºóһλ
{
c = ch[j] - 32; //´óСдת»»
if(x > 126) //ÅжÏÆÁÄ»ÊÇ·ñ·ÅµÃÏÂ,OLEDÊÇ128*8×Ö½Ú
{
x = 0;
y++;
}
OLED_SetPos(x,y);//ÉèÖÃ×ø±ê
for(i=0;i<6;i++)
{
WriteData(F6x8[c][i]);
}
x+=6;
j++;
}
}break;
case 2:
{
while(ch[j] != '\0') //ÅжÏÊÇ·ñµ½´ï×îºóһλ
{
c = ch[j] - 32; //´óСдת»»
if(x > 120) //ÅжÏÆÁÄ»ÊÇ·ñ·ÅµÃÏÂ,OLEDÊÇ128*8×Ö½Ú
{
x = 0;
y++;
}
OLED_SetPos(x,y); //ÉèÖÃ×ø±ê
for(i=0;i<8;i++) //ÒòΪÊÇ16½øÖƵÄËùÒÔ·ÖΪÁ½¸ö8λÀ´Ð´£¬ÕâÊÇÉϰ벿·Ö
{
WriteData(F8X16[c*16+i]);
}
OLED_SetPos(x,y+1); //ÉèÖÃ×ø±ê Èç¹ûÕâÀïÉèÖõÄÊÇy²»ÊÇy+1»áµ¼ÖÂÏÔʾµÄ×Ö·û´®Ö»ÏÔʾһ°ë
for(i=0;i<8;i++) //Ìøתµ½ÏÂÒ»Ò³£¬ÕâÊÇÏ°벿·Ö
{
WriteData(F8X16[c*16+i+8]);
}
x+=8;
j++;
}
}break;
}
}
void OLED_ShowCN(unsigned char x,unsigned y,unsigned char N)
{
unsigned char i;
unsigned int addr = 32*N;
OLED_SetPos(x,y);
for(i=0;i<16;i++)
{
WriteData(F16X16[addr]);
addr += 1;
}
OLED_SetPos(x,y+1);
for(i=0;i<16;i++)
{
WriteData(F16X16[addr]);
addr += 1;
}
}
void OLED_ShowMouMou(unsigned char x,unsigned char y,unsigned char N)
{
unsigned char i;
unsigned int addr = 32*N;
OLED_SetPos(x,y);
for(i=0;i<16;i++)
{
WriteData(MouMou[addr]);
addr += 1;
}
OLED_SetPos(x,y+1);
for(i=0;i<16;i++)
{
WriteData(MouMou[addr]);
addr += 1;
}
}
codetab.h
//unsigned char F16X16[] =
//{
// 0x10,0x60,0x02,0x8C,0x00,0x00,0xFE,0x92,0x92,0x92,0x92,0x92,0xFE,0x00,0x00,0x00,
// 0x04,0x04,0x7E,0x01,0x40,0x7E,0x42,0x42,0x7E,0x42,0x7E,0x42,0x42,0x7E,0x40,0x00,/*"ζÈ",0*/
// 0x00,0x00,0xFC,0x24,0x24,0x24,0xFC,0x25,0x26,0x24,0xFC,0x24,0x24,0x24,0x04,0x00,
// 0x40,0x30,0x8F,0x80,0x84,0x4C,0x55,0x25,0x25,0x25,0x55,0x4C,0x80,0x80,0x80,0x00,/*"ʪ¶È",1*/
//};
unsigned char F16X16[] =
{
0x00,0xFC,0x04,0x04,0xFC,0x00,0x10,0xD8,0x14,0x13,0xF0,0x14,0x18,0x30,0x00,0x00,
0x00,0x0F,0x04,0x04,0x0F,0x08,0x0A,0x09,0x09,0x09,0xFF,0x09,0x09,0x09,0x08,0x00,/*"ßè",0*/
0x00,0xFC,0x04,0x04,0xFC,0x00,0x10,0xD8,0x14,0x13,0xF0,0x14,0x18,0x30,0x00,0x00,
0x00,0x0F,0x04,0x04,0x0F,0x08,0x0A,0x09,0x09,0x09,0xFF,0x09,0x09,0x09,0x08,0x00,/*"ßè",1*/
};
unsigned char MouMou[] =
{ 0x00,0xFC,0x04,0x04,0xFC,0x00,0x10,0xD8,0x14,0x13,0xF0,0x14,0x18,0x30,0x00,0x00,
0x00,0x0F,0x04,0x04,0x0F,0x08,0x0A,0x09,0x09,0x09,0xFF,0x09,0x09,0x09,0x08,0x00,/*"ßè",0*/
0x00,0xFC,0x04,0x04,0xFC,0x00,0x10,0xD8,0x14,0x13,0xF0,0x14,0x18,0x30,0x00,0x00,
0x00,0x0F,0x04,0x04,0x0F,0x08,0x0A,0x09,0x09,0x09,0xFF,0x09,0x09,0x09,0x08,0x00,/*"ßè",1*/
0x00,0xFC,0x04,0x04,0xFC,0x00,0x10,0xD8,0x14,0x13,0xF0,0x14,0x18,0x30,0x00,0x00,
0x00,0x0F,0x04,0x04,0x0F,0x08,0x0A,0x09,0x09,0x09,0xFF,0x09,0x09,0x09,0x08,0x00,/*"ßè",2*/};
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
};
unsigned char BMP1[] =
{
0X32,0X01,0X00,0X80,0X00,0X3B,
0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,
0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,
0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,
0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,
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0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,
0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,
0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,
0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,
0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,
};
SysTick.h
#include "stm32f10x.h"
void ms_delay(uint32_t ms);
void us_delay(uint32_t us);
SysTick.c
#include "stm32f10x.h"
#include "SysTick.h"
/*
ϵͳ¶¨Ê±Æ÷Ìص㣺
Ö»Äܵݼõ£¬Èç¹û¶¨ÒåµÄÊÇ72000
ÄǾʹÓ72000¿ªÊ¼µÝ¼õµ½0£¬ÎªÒ»¸öÖÜÆÚ
ËùÒÔÖ»ÐèÒªÅжÏÊÇ·ñ¼õµ½1
ÈçºÎÅжϣ¿
¿´COUNTFLAG¼Ä´æÆ÷£¬Ò²¾ÍÊÇSysTick->CTRL
*/
void ms_delay(uint32_t ms)
{
uint32_t i;
SysTick_Config(72000);//Ñ»·Ò»´Î1ms
for(i=0;i<ms;i++)//Ҫѻ·¶àÉÙms
{
while( !((SysTick->CTRL)&(1<<16)) );//ÅжÏSysTickÊÇ·ñµ½0£¬µ½0¸ÃλΪ1
//!(1&1)Ìø³öÑ»·
//Ϊʲô×óÒÆ16λÄØ£¬ÒòΪCTRLÊÇ16λµÄ?
//¿´¿ØÖƼ°×´Ì¬¼Ä´æÆ÷µÄͼдÁË¡£
}
SysTick->CTRL &=~ SysTick_CTRL_ENABLE_Msk;
}
void us_delay(uint32_t us)
{
uint32_t i;
SysTick_Config(72);//Ñ»·Ò»´Î1us
for(i=0;i<us;i++)//Ҫѻ·¶àÉÙus
{
while( !((SysTick->CTRL)&(1<<16)) );
}
SysTick->CTRL &=~ SysTick_CTRL_ENABLE_Msk;
}
遇到的问题
问题一，oled显示花屏
看下图，oled初始化的时候出现的
两个延时函数，第一个不会花屏，第二个延时函数会花屏，具体原因不清楚。
问题二，oled显示错误
因为对代码不熟悉，想让他打印三个字，而不是两个字，我仿写了个OLED_ShowMouMou(如下图),然后发现为啥我显示了三个字，还多显示了三个哞字的上班部分，第三个哞字的上半部分乱码。
后面我试了试四个for然后发现，第二行下班部分就补齐了，显示了六个字，因为一个汉字需要16*16两行，那么只需要两个for，我当时以为for跟字数有关，所以导致了显示问题。
看下图字库
可以发现一个字两行，一行是1616，一行有16列，没个都是16进制数，所以一行是1616
