工程建立参考之前的帖子。不一样的是要用到I2C的初始化代码：
其他代码如下：
main.c
// *****************************************************************************
int main(void)
{
OLED_Init();
OLED_CLear(0);
GUI_ShowString(32,30,(uint8_t *)"HELLO EEPW",16,10);
OLED_Display();
return 0;
}
两个头文件如下
oled_user.h:
#include "i2c.h" #define u8 uint8_t #define u32 uint32_t #define SSD1306_ADDR 0x3C // OLED的I2C地址（禁止修改） #define COM 0x00 // OLED 指令（禁止修改） #define DAT 0x40 // OLED 数据（禁止修改） #define OLED_PAGE_SIZE 8 #define XLevelL 0x00 #define XLevelH 0x10 #define YLevel 0xB0 #define Brightness 0xFF #define SSD1306_WIDTH 128 #define SSD1306_HEIGHT 64 int WriteCmd(unsigned char I2C_Command);//写命令 int WriteDat(unsigned char I2C_Data);//写数据 void OLED_Init(void);//初始化 void OLED_Display(void); void OLED_CLear(unsigned char clear_data); void OLED_ShowChar(uint8_t x,uint8_t y,uint8_t chr,uint8_t Char_Size,uint8_t mode); void GUI_ShowString(uint8_t x,uint8_t y,uint8_t *chr,uint8_t Char_Size,uint8_t mode);
oled_fornts.h:
/************************************6*8的点阵************************************/
const unsigned char Font6x8[95][6] = {
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // ' '
{0x00, 0x00, 0x5F, 0x00, 0x00, 0x00}, // '!'
{0x00, 0x07, 0x00, 0x07, 0x00, 0x00}, // '"'
{0x14, 0x7F, 0x14, 0x7F, 0x14, 0x00}, // '#'
{0x24, 0x2A, 0x7F, 0x2A, 0x12, 0x00}, // '$'
{0x23, 0x13, 0x08, 0x64, 0x62, 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, 0x50, 0x30, 0x00, 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, 0x00}, // '0'
{0x00, 0x42, 0x7F, 0x40, 0x00, 0x00}, // '1'
{0x42, 0x61, 0x51, 0x49, 0x46, 0x00}, // '2'
{0x21, 0x41, 0x45, 0x4B, 0x31, 0x00}, // '3'
{0x18, 0x14, 0x12, 0x7F, 0x10, 0x00}, // '4'
{0x27, 0x45, 0x45, 0x45, 0x39, 0x00}, // '5'
{0x3C, 0x4A, 0x49, 0x49, 0x30, 0x00}, // '6'
{0x01, 0x71, 0x09, 0x05, 0x03, 0x00}, // '7'
{0x36, 0x49, 0x49, 0x49, 0x36, 0x00}, // '8'
{0x06, 0x49, 0x49, 0x29, 0x1E, 0x00}, // '9'
{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, 0x79, 0x41, 0x3E, 0x00}, // '@'
{0x7E, 0x11, 0x11, 0x11, 0x7E, 0x00}, // 'A'
{0x7F, 0x49, 0x49, 0x49, 0x36, 0x00}, // 'B'
{0x3E, 0x41, 0x41, 0x41, 0x22, 0x00}, // 'C'
{0x7F, 0x41, 0x41, 0x22, 0x1C, 0x00}, // 'D'
{0x7F, 0x49, 0x49, 0x49, 0x41, 0x00}, // 'E'
{0x7F, 0x09, 0x09, 0x09, 0x01, 0x00}, // 'F'
{0x3E, 0x41, 0x49, 0x49, 0x7A, 0x00}, // 'G'
{0x7F, 0x08, 0x08, 0x08, 0x7F, 0x00}, // 'H'
{0x00, 0x41, 0x7F, 0x41, 0x00, 0x00}, // 'I'
{0x20, 0x40, 0x41, 0x3F, 0x01, 0x00}, // 'J'
{0x7F, 0x08, 0x14, 0x22, 0x41, 0x00}, // 'K'
{0x7F, 0x40, 0x40, 0x40, 0x40, 0x00}, // 'L'
{0x7F, 0x02, 0x0C, 0x02, 0x7F, 0x00}, // 'M'
{0x7F, 0x04, 0x08, 0x10, 0x7F, 0x00}, // 'N'
{0x3E, 0x41, 0x41, 0x41, 0x3E, 0x00}, // 'O'
{0x7F, 0x09, 0x09, 0x09, 0x06, 0x00}, // 'P'
{0x3E, 0x41, 0x51, 0x21, 0x5E, 0x00}, // 'Q'
{0x7F, 0x09, 0x19, 0x29, 0x46, 0x00}, // 'R'
{0x46, 0x49, 0x49, 0x49, 0x31, 0x00}, // 'S'
{0x01, 0x01, 0x7F, 0x01, 0x01, 0x00}, // 'T'
{0x3F, 0x40, 0x40, 0x40, 0x3F, 0x00}, // 'U'
{0x1F, 0x20, 0x40, 0x20, 0x1F, 0x00}, // 'V'
{0x7F, 0x20, 0x18, 0x20, 0x7F, 0x00}, // 'W'
{0x63, 0x14, 0x08, 0x14, 0x63, 0x00}, // 'X'
{0x07, 0x08, 0x70, 0x08, 0x07, 0x00}, // 'Y'
{0x61, 0x51, 0x49, 0x45, 0x43, 0x00}, // 'Z'
{0x00, 0x7F, 0x41, 0x41, 0x00, 0x00}, // '['
{0x02, 0x04, 0x08, 0x10, 0x20, 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, 0x00}, // 'a'
{0x7F, 0x48, 0x44, 0x44, 0x38, 0x00}, // 'b'
{0x38, 0x44, 0x44, 0x44, 0x20, 0x00}, // 'c'
{0x38, 0x44, 0x44, 0x48, 0x7F, 0x00}, // 'd'
{0x38, 0x54, 0x54, 0x54, 0x18, 0x00}, // 'e'
{0x08, 0x7E, 0x09, 0x01, 0x02, 0x00}, // 'f'
{0x0C, 0x52, 0x52, 0x52, 0x3E, 0x00}, // 'g'
{0x7F, 0x08, 0x04, 0x04, 0x78, 0x00}, // 'h'
{0x00, 0x44, 0x7D, 0x40, 0x00, 0x00}, // 'i'
{0x20, 0x40, 0x44, 0x3D, 0x00, 0x00}, // 'j'
{0x7F, 0x10, 0x28, 0x44, 0x00, 0x00}, // 'k'
{0x00, 0x41, 0x7F, 0x40, 0x00, 0x00}, // 'l'
{0x7C, 0x04, 0x18, 0x04, 0x78, 0x00}, // 'm'
{0x7C, 0x08, 0x04, 0x04, 0x78, 0x00}, // 'n'
{0x38, 0x44, 0x44, 0x44, 0x38, 0x00}, // 'o'
{0x7C, 0x14, 0x14, 0x14, 0x08, 0x00}, // 'p'
{0x08, 0x14, 0x14, 0x18, 0x7C, 0x00}, // 'q'
{0x7C, 0x08, 0x04, 0x04, 0x08, 0x00}, // 'r'
{0x48, 0x54, 0x54, 0x54, 0x20, 0x00}, // 's'
{0x04, 0x3F, 0x44, 0x40, 0x20, 0x00}, // 't'
{0x3C, 0x40, 0x40, 0x20, 0x7C, 0x00}, // 'u'
{0x1C, 0x20, 0x40, 0x20, 0x1C, 0x00}, // 'v'
{0x3C, 0x40, 0x30, 0x40, 0x3C, 0x00}, // 'w'
{0x44, 0x28, 0x10, 0x28, 0x44, 0x00}, // 'x'
{0x0C, 0x50, 0x50, 0x50, 0x3C, 0x00}, // 'y'
{0x44, 0x64, 0x54, 0x4C, 0x44, 0x00}, // 'z'
{0x00, 0x08, 0x36, 0x41, 0x00, 0x00}, // '{'
{0x00, 0x00, 0x7F, 0x00, 0x00, 0x00}, // '|'
{0x00, 0x41, 0x36, 0x08, 0x00, 0x00}, // '}'
{0x10, 0x08, 0x08, 0x10, 0x08, 0x00}, // '~'
};
/****************************************8*16的点阵************************************/
const unsigned char Font8X16[]=
{
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,// 0
0x00,0x00,0x00,0x18,0x18,0x18,0x18,0x18,0x18,0x18,0x00,0x00,0x18,0x18,0x00,0x00,//! 1
0x00,0x12,0x36,0x24,0x48,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//" 2
0x00,0x00,0x00,0x24,0x24,0x24,0xFE,0x48,0x48,0x48,0xFE,0x48,0x48,0x48,0x00,0x00,//# 3
0x00,0x00,0x10,0x38,0x54,0x54,0x50,0x30,0x1C,0x14,0x14,0x54,0x54,0x38,0x10,0x10,//$ 4
0x00,0x00,0x00,0x44,0xA4,0xA8,0xA8,0xA8,0x54,0x1A,0x2A,0x2A,0x2A,0x44,0x00,0x00,//% 5
0x00,0x00,0x00,0x30,0x48,0x48,0x48,0x50,0x6E,0xA4,0x94,0x88,0x89,0x76,0x00,0x00,//& 6
0x00,0x60,0x60,0x20,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//' 7
0x00,0x02,0x04,0x08,0x08,0x10,0x10,0x10,0x10,0x10,0x10,0x08,0x08,0x04,0x02,0x00,//( 8
0x00,0x40,0x20,0x10,0x10,0x08,0x08,0x08,0x08,0x08,0x08,0x10,0x10,0x20,0x40,0x00,//) 9
0x00,0x00,0x00,0x00,0x10,0x10,0xD6,0x38,0x38,0xD6,0x10,0x10,0x00,0x00,0x00,0x00,//* 10
0x00,0x00,0x00,0x00,0x10,0x10,0x10,0x10,0xFE,0x10,0x10,0x10,0x10,0x00,0x00,0x00,//+ 11
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x60,0x60,0x20,0xC0,//, 12
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x7F,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//- 13
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x60,0x60,0x00,0x00,//. 14
0x00,0x00,0x01,0x02,0x02,0x04,0x04,0x08,0x08,0x10,0x10,0x20,0x20,0x40,0x40,0x00,/// 15
0x00,0x00,0x00,0x18,0x24,0x42,0x42,0x42,0x42,0x42,0x42,0x42,0x24,0x18,0x00,0x00,//0 16
0x00,0x00,0x00,0x10,0x70,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x7C,0x00,0x00,//1 17
0x00,0x00,0x00,0x3C,0x42,0x42,0x42,0x04,0x04,0x08,0x10,0x20,0x42,0x7E,0x00,0x00,//2 18
0x00,0x00,0x00,0x3C,0x42,0x42,0x04,0x18,0x04,0x02,0x02,0x42,0x44,0x38,0x00,0x00,//3 19
0x00,0x00,0x00,0x04,0x0C,0x14,0x24,0x24,0x44,0x44,0x7E,0x04,0x04,0x1E,0x00,0x00,//4 20
0x00,0x00,0x00,0x7E,0x40,0x40,0x40,0x58,0x64,0x02,0x02,0x42,0x44,0x38,0x00,0x00,//5 21
0x00,0x00,0x00,0x1C,0x24,0x40,0x40,0x58,0x64,0x42,0x42,0x42,0x24,0x18,0x00,0x00,//6 22
0x00,0x00,0x00,0x7E,0x42,0x44,0x08,0x08,0x10,0x10,0x10,0x10,0x10,0x10,0x00,0x00,//7 23
0x00,0x00,0x00,0x3C,0x42,0x42,0x42,0x24,0x18,0x24,0x42,0x42,0x42,0x3C,0x00,0x00,//8 24
0x00,0x00,0x00,0x18,0x24,0x42,0x42,0x42,0x26,0x1A,0x02,0x02,0x24,0x38,0x00,0x00,//9 25
0x00,0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x00,0x00,0x00,0x00,0x18,0x18,0x00,0x00,//: 26
0x00,0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x00,0x00,0x00,0x18,0x18,0x08,0x30,0x00,//; 27
0x00,0x00,0x00,0x02,0x04,0x08,0x10,0x20,0x40,0x20,0x10,0x08,0x04,0x02,0x00,0x00,//< 28
0x00,0x00,0x00,0x00,0x00,0x00,0xFE,0x00,0x00,0x00,0xFE,0x00,0x00,0x00,0x00,0x00,//= 29
0x00,0x00,0x00,0x40,0x20,0x10,0x08,0x04,0x02,0x04,0x08,0x10,0x20,0x40,0x00,0x00,//> 30
0x00,0x00,0x00,0x3C,0x42,0x42,0x62,0x02,0x04,0x08,0x08,0x00,0x18,0x18,0x00,0x00,//? 31
0x00,0x00,0x00,0x38,0x44,0x5A,0xAA,0xAA,0xAA,0xAA,0xB4,0x42,0x44,0x38,0x00,0x00,//@ 32
0x00,0x00,0x00,0x10,0x10,0x18,0x28,0x28,0x24,0x3C,0x44,0x42,0x42,0xE7,0x00,0x00,//A 33
0x00,0x00,0x00,0xF8,0x44,0x44,0x44,0x78,0x44,0x42,0x42,0x42,0x44,0xF8,0x00,0x00,//B 34
0x00,0x00,0x00,0x3E,0x42,0x42,0x80,0x80,0x80,0x80,0x80,0x42,0x44,0x38,0x00,0x00,//C 35
0x00,0x00,0x00,0xF8,0x44,0x42,0x42,0x42,0x42,0x42,0x42,0x42,0x44,0xF8,0x00,0x00,//D 36
0x00,0x00,0x00,0xFE,0x42,0x48,0x48,0x78,0x48,0x48,0x40,0x42,0x42,0xFE,0x00,0x00,//E 37
0x00,0x00,0x00,0xFE,0x42,0x48,0x48,0x78,0x48,0x48,0x40,0x40,0x40,0xE0,0x00,0x00,//F 38
0x00,0x00,0x00,0x3C,0x44,0x44,0x80,0x80,0x80,0x8E,0x84,0x44,0x44,0x38,0x00,0x00,//G 39
0x00,0x00,0x00,0xE7,0x42,0x42,0x42,0x42,0x7E,0x42,0x42,0x42,0x42,0xE7,0x00,0x00,//H 40
0x00,0x00,0x00,0x7C,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x7C,0x00,0x00,//I 41
0x00,0x00,0x00,0x3E,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x88,0xF0,//J 42
0x00,0x00,0x00,0xEE,0x44,0x48,0x50,0x70,0x50,0x48,0x48,0x44,0x44,0xEE,0x00,0x00,//K 43
0x00,0x00,0x00,0xE0,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x42,0xFE,0x00,0x00,//L 44
0x00,0x00,0x00,0xEE,0x6C,0x6C,0x6C,0x6C,0x54,0x54,0x54,0x54,0x54,0xD6,0x00,0x00,//M 45
0x00,0x00,0x00,0xC7,0x62,0x62,0x52,0x52,0x4A,0x4A,0x4A,0x46,0x46,0xE2,0x00,0x00,//N 46
0x00,0x00,0x00,0x38,0x44,0x82,0x82,0x82,0x82,0x82,0x82,0x82,0x44,0x38,0x00,0x00,//O 47
0x00,0x00,0x00,0xFC,0x42,0x42,0x42,0x42,0x7C,0x40,0x40,0x40,0x40,0xE0,0x00,0x00,//P 48
0x00,0x00,0x00,0x38,0x44,0x82,0x82,0x82,0x82,0x82,0xB2,0xCA,0x4C,0x38,0x06,0x00,//Q 49
0x00,0x00,0x00,0xF8,0x44,0x44,0x44,0x78,0x48,0x48,0x44,0x44,0x42,0xE3,0x00,0x00,//R 50
0x00,0x00,0x00,0x3E,0x42,0x42,0x40,0x20,0x18,0x04,0x02,0x42,0x42,0x7C,0x00,0x00,//S 51
0x00,0x00,0x00,0xFE,0x92,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x38,0x00,0x00,//T 52
0x00,0x00,0x00,0xE7,0x42,0x42,0x42,0x42,0x42,0x42,0x42,0x42,0x42,0x3C,0x00,0x00,//U 53
0x00,0x00,0x00,0xE7,0x42,0x42,0x44,0x24,0x24,0x28,0x28,0x18,0x10,0x10,0x00,0x00,//V 54
0x00,0x00,0x00,0xD6,0x92,0x92,0x92,0x92,0xAA,0xAA,0x6C,0x44,0x44,0x44,0x00,0x00,//W 55
0x00,0x00,0x00,0xE7,0x42,0x24,0x24,0x18,0x18,0x18,0x24,0x24,0x42,0xE7,0x00,0x00,//X 56
0x00,0x00,0x00,0xEE,0x44,0x44,0x28,0x28,0x10,0x10,0x10,0x10,0x10,0x38,0x00,0x00,//Y 57
0x00,0x00,0x00,0x7E,0x84,0x04,0x08,0x08,0x10,0x20,0x20,0x42,0x42,0xFC,0x00,0x00,//Z 58
0x00,0x1E,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x1E,0x00,//[ 59
0x00,0x00,0x40,0x40,0x20,0x20,0x10,0x10,0x08,0x04,0x04,0x02,0x02,0x02,0x01,0x01,//\ 60
0x00,0x78,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x78,0x00,//] 61
0x00,0x08,0x14,0x22,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//^ 62
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,//_ 63
0x00,0x60,0x10,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//` 64
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3C,0x42,0x1E,0x22,0x42,0x42,0x3F,0x00,0x00,//a 65
0x00,0x00,0x00,0xC0,0x40,0x40,0x40,0x58,0x64,0x42,0x42,0x42,0x64,0x58,0x00,0x00,//b 66
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1C,0x22,0x40,0x40,0x40,0x22,0x1C,0x00,0x00,//c 67
0x00,0x00,0x00,0x06,0x02,0x02,0x02,0x1E,0x22,0x42,0x42,0x42,0x26,0x1B,0x00,0x00,//d 68
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3C,0x42,0x7E,0x40,0x40,0x42,0x3C,0x00,0x00,//e 69
0x00,0x00,0x00,0x0F,0x11,0x10,0x10,0x7E,0x10,0x10,0x10,0x10,0x10,0x7C,0x00,0x00,//f 70
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3E,0x44,0x44,0x38,0x40,0x3C,0x42,0x42,0x3C,//g 71
0x00,0x00,0x00,0xC0,0x40,0x40,0x40,0x5C,0x62,0x42,0x42,0x42,0x42,0xE7,0x00,0x00,//h 72
0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x70,0x10,0x10,0x10,0x10,0x10,0x7C,0x00,0x00,//i 73
0x00,0x00,0x00,0x0C,0x0C,0x00,0x00,0x1C,0x04,0x04,0x04,0x04,0x04,0x04,0x44,0x78,//j 74
0x00,0x00,0x00,0xC0,0x40,0x40,0x40,0x4E,0x48,0x50,0x68,0x48,0x44,0xEE,0x00,0x00,//k 75
0x00,0x00,0x00,0x70,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x7C,0x00,0x00,//l 76
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xF6,0x49,0x49,0x49,0x49,0x49,0xED,0x00,0x00,//m 77
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xDC,0x62,0x42,0x42,0x42,0x42,0xE7,0x00,0x00,//n 78
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3C,0x42,0x42,0x42,0x42,0x42,0x3C,0x00,0x00,//o 79
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xD8,0x64,0x42,0x42,0x42,0x64,0x58,0x40,0xE0,//p 80
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1E,0x22,0x42,0x42,0x42,0x26,0x1A,0x02,0x07,//q 81
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xEE,0x32,0x20,0x20,0x20,0x20,0xF8,0x00,0x00,//r 82
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3E,0x42,0x40,0x3C,0x02,0x42,0x7C,0x00,0x00,//s 83
0x00,0x00,0x00,0x00,0x00,0x10,0x10,0x7C,0x10,0x10,0x10,0x10,0x10,0x0C,0x00,0x00,//t 84
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xC6,0x42,0x42,0x42,0x42,0x46,0x3B,0x00,0x00,//u 85
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xE7,0x42,0x24,0x24,0x28,0x10,0x10,0x00,0x00,//v 86
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xD7,0x92,0x92,0xAA,0xAA,0x44,0x44,0x00,0x00,//w 87
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x6E,0x24,0x18,0x18,0x18,0x24,0x76,0x00,0x00,//x 88
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xE7,0x42,0x24,0x24,0x28,0x18,0x10,0x10,0xE0,//y 89
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x7E,0x44,0x08,0x10,0x10,0x22,0x7E,0x00,0x00,//z 90
0x00,0x03,0x04,0x04,0x04,0x04,0x04,0x08,0x04,0x04,0x04,0x04,0x04,0x04,0x03,0x00,//{ 91
0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,//| 92
0x00,0x60,0x10,0x10,0x10,0x10,0x10,0x08,0x10,0x10,0x10,0x10,0x10,0x10,0x60,0x00,//} 93
0x00,0x00,0x00,0x00,0x00,0x00,0x20,0x52,0x0C,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//~ 94
};oled_user.c:
#define I2C_MASTER MXC_I2C1 // SCL P0_16; SDA P0_17
#define I2C_SCL_PIN 16
#define I2C_SDA_PIN 17
#define I2C_FREQ 100000 // 100kHZ
mxc_i2c_req_t req;
//OLED显存总共分为8页
//每页8行，一行128个像素点
//数组每个bit存储OLED每个像素点的颜色值(1-亮(白色),0-灭(黑色))
//每个数组元素表示1列8个像素点，一共128列
uint8_t Flash_OLED_Buffer[1025] = {0};
uint8_t * OLED_buffer = Flash_OLED_Buffer+1 ;
static void I2c_Init_Fun(void)
{
int error;
//Setup the I2CM
error = MXC_I2C_Init(I2C_MASTER, 1, 0);
if (error != E_NO_ERROR) {
printf("-->I2C Master Initialization failed, error:%d\n", error);
} else {
printf("\n-->I2C Master Initialization Complete\n");
}
printf("-->Scanning started\n");
MXC_I2C_SetFrequency(I2C_MASTER, I2C_FREQ);
req.i2c = I2C_MASTER;
req.addr = 0;
req.tx_buf = NULL;
req.tx_len = 0;
req.rx_buf = NULL;
req.rx_len = 0;
req.restart = 0;
req.callback = NULL;
uint8_t counter = 0;
for (uint8_t address = 8; address < 70; address++)
{
printf(".");
fflush(0);
req.addr = address;
if ((MXC_I2C_MasterTransaction(&req)) == 0)
{
printf("\nFound slave ID %03d; 0x%02X\n", address, address);
counter++;
}
MXC_Delay(MXC_DELAY_MSEC(200));
}
printf("\n-->Scan finished. %d devices found\n", counter);
printf("I2c_Init ok\n");
}
//写命令
int WriteCmd(unsigned char I2C_Command)
{
printf("WriteCmd data=%x\n",I2C_Command);
uint8_t buffer[2];
buffer[0] = COM;
buffer[1] = I2C_Command;
req.tx_buf = buffer;
req.i2c = I2C_MASTER; // 根据你的硬件选择
req.addr = SSD1306_ADDR;
req.tx_len = 2;
int ret = MXC_I2C_MasterTransaction(&req);
if (ret != 0)
{
printf("oled WriteCmd I2C Write failed, ret=%d\n", ret);
}
MXC_Delay(MXC_DELAY_MSEC(5)); // 给总线一些时间
return ret;
}
int WriteDat(unsigned char I2C_Data) //写数据
{
uint8_t buffer[2];
buffer[0] = DAT;
buffer[1] = I2C_Data;
req.tx_buf = buffer;
req.i2c = I2C_MASTER; // 根据你的硬件选择
req.addr = SSD1306_ADDR;
req.tx_len = 2;
int ret = MXC_I2C_MasterTransaction(&req);
if (ret != 0)
{
printf("oled WriteDat I2C Write failed ret=%d\n",ret);
}
MXC_Delay(MXC_DELAY_MSEC(5)); // 给总线一些时间
return ret;
}
void OLED_Init(void) {
I2c_Init_Fun();
WriteCmd(0xAE); // 关闭显示
WriteCmd(0x20); // 设置内存寻址模式
WriteCmd(0x00); // 水平寻址模式
WriteCmd(0xB0); // 设置页地址
WriteCmd(0xC8); // 设置扫描方向
WriteCmd(0x00); // 设置列地址低 4 位
WriteCmd(0x10); // 设置列地址高 4 位
WriteCmd(0x40); // 设置显示起始行
WriteCmd(0x81); // 设置对比度
WriteCmd(0xFF); // 最大对比度
WriteCmd(0xA1); // 设置段重映射
WriteCmd(0xA6); // 设置正常显示
WriteCmd(0xA8); // 设置多路复用率
WriteCmd(0x3F); // 1/64 多路复用
WriteCmd(0xA4); // 恢复整体显示
WriteCmd(0xD3); // 设置显示偏移
WriteCmd(0x00); // 无偏移
WriteCmd(0xD5); // 设置时钟分频比/振荡器频率
WriteCmd(0xF0); // 设置分频比
WriteCmd(0xD9); // 设置预充电周期
WriteCmd(0x22); // 设置预充电周期
WriteCmd(0xDA); // 设置 COM 引脚硬件配置
WriteCmd(0x12); // 设置 COM 引脚硬件配置
WriteCmd(0xDB); // 设置 VCOMH 取消选择级别
WriteCmd(0x20); // 设置 VCOMH 取消选择级别
WriteCmd(0x8D); // 设置电荷泵
WriteCmd(0x14); // 启用电荷泵
WriteCmd(0xAF); // 开启显示
printf("OLED_Init done\n");
}
void OLED_Set_Pos(unsigned char x, unsigned char y)
{
WriteCmd(YLevel+y/OLED_PAGE_SIZE);
WriteCmd(((x&0xf0)>>4)|0x10);
WriteCmd(x&0x0f);
}
void OLED_Display(void)
{
WriteCmd(0x21); // 设置列地址
WriteCmd(0x00); // 起始列地址
WriteCmd(SSD1306_WIDTH - 1); // 结束列地址
WriteCmd(0x22); // 设置页地址
WriteCmd(0x00); // 起始页地址
WriteCmd(OLED_PAGE_SIZE - 1); // 结束页地址
Flash_OLED_Buffer[0] = 0x40;
req.tx_buf = Flash_OLED_Buffer;
req.i2c = I2C_MASTER; // 根据你的硬件选择
req.addr = SSD1306_ADDR;
req.tx_len = 1025;
int ret = MXC_I2C_MasterTransaction(&req);
if (ret != 0)
{
printf("OLED_Display failed ret=%d\n",ret);
}
}
void OLED_CLear(unsigned char clear_data)
{
if(clear_data)
{
memset(OLED_buffer,0xff,SSD1306_WIDTH * OLED_PAGE_SIZE);
}
else
{
memset(OLED_buffer,0x00,SSD1306_WIDTH * OLED_PAGE_SIZE);
}
}
void OLED_Set_Pixel(unsigned char x, unsigned char y,unsigned char color)
{
if(color)
{
OLED_buffer[(y/OLED_PAGE_SIZE)*SSD1306_WIDTH+x]|= (1<<(y%OLED_PAGE_SIZE))&0xff;
}
else
{
OLED_buffer[(y/OLED_PAGE_SIZE)*SSD1306_WIDTH+x]&= ~((1<<(y%OLED_PAGE_SIZE))&0xff);
}
}
void OLED_ShowChar(uint8_t x,uint8_t y,uint8_t chr,uint8_t Char_Size,uint8_t mode)
{
unsigned char c=0,i=0,tmp,j=0;
c=chr-' ';//得到偏移后的值
if(x>SSD1306_WIDTH-1)
{
x=0;
y=y+2;
}
if(Char_Size ==16) {
for(i=0;i<16;i++) {
if(mode) {
tmp = Font8X16[c*16+i];
} else {
tmp = ~(Font8X16[c*16+i]);
}
for(j=0;j<8;j++) {
if(tmp&(0x80>>j)) {
OLED_Set_Pixel(x+j, y+i,1);
} else {
OLED_Set_Pixel(x+j, y+i,0);
}
}
}
}
else if(Char_Size==8)
{
for(i=0;i<8;i++) {
if(mode) {
tmp = Font6x8[c][i];
} else {
tmp = ~(Font6x8[c][i]);
}
for(j=0;j<8;j++) {
if(tmp&(0x80>>j)) {
OLED_Set_Pixel(x+j, y+i,1);
} else {
OLED_Set_Pixel(x+j, y+i,0);
}
}
}
}
else
{
return;
}
}
void GUI_ShowString(uint8_t x,uint8_t y,uint8_t *chr,uint8_t Char_Size,uint8_t mode)
{
unsigned char j=0,csize;
if(Char_Size == 16) {
csize = Char_Size/2;
} else if(Char_Size == 8) {
csize = Char_Size/2+2;
} else {
return;
}
while (chr[j]!='\0') {
OLED_ShowChar(x,y,chr[j],Char_Size,mode);
x+=csize;
if(x>120) {
x=0;
y+=Char_Size;
}
j++;
}
}编译、烧录程序后如图显示：
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