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I2C_硬件I2C1 控制0.96寸OLED显示

news 2026/5/14 15:40:50

一、硬件

使用STM32F103ZET6 硬件I2C1控制0.96寸oled。
从机地址：0x78
oled自带上拉电阻
接线：
供电3.3V(3.3V~5V均可)
SCL – PB6
SDA – PB7
这里和GPIO模拟I2C的区别是不需要人为实现I2C起始、停止、读写时序，只需要调用I2C_Init、I2C_GenerateSTART、I2C_SendData、I2C_GenerateSTOP等库函数即可，时序都是由I2C硬件完成的。
STM32硬件I2C如果不考虑性能问题，一般使用GPIO软件模拟I2C即可，STM32硬件I2C这里不多介绍。

二、工程实现

创建文件夹：
新建文件：
添加库文件：stm32f10x_i2c.c
添加文件到工程组、引入头文件路径
codetab.h文件存放字库及图片数据

代码
codetab.h字库及图片数据：

/************************************************************************************ * Description: * 1. 128*64点整OLED模块; * 2. 字表由打包资料中的“取字软件”计算得出; * 3. 取字方式 -- 共阴、列行式、逆向输出 * *************************************************************************************/ unsigned char F16x16[] = { 0x20,0x20,0x20,0x20,0x20,0x20,0x20,0xFF,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x00, 0x80,0x80,0x40,0x20,0x10,0x0C,0x03,0x00,0x03,0x0C,0x10,0x20,0x40,0x80,0x80,0x00,/* "大",0 宋体*/ 0x10,0x2C,0x24,0x24,0xA4,0xA4,0x65,0xA6,0x24,0x24,0x24,0x24,0xA4,0x34,0x0C,0x00, 0x40,0x49,0x49,0x29,0x24,0x14,0x52,0x89,0x7F,0x04,0x0A,0x11,0x10,0x20,0x20,0x00,/* "家",1 宋体*/ 0x10,0x10,0xF0,0x1F,0x10,0xF0,0x00,0x80,0x82,0x82,0xE2,0x92,0x8A,0x86,0x80,0x00, 0x40,0x22,0x15,0x08,0x16,0x61,0x00,0x00,0x40,0x80,0x7F,0x00,0x00,0x00,0x00,0x00,/* "好",2 宋体*/ 0x00,0x00,0xF0,0x18,0x2C,0x16,0x32,0x02,0x12,0x16,0x36,0x0C,0x18,0xF0,0x00,0x00, 0x00,0x00,0x07,0x08,0x10,0x26,0x4C,0x58,0x50,0x48,0x2E,0x12,0x08,0x07,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFC,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x70,0x71,0x70,0x00,0x00,0x00,0x00,0x00,0x00,0x00, }; /************************************6*8的点阵************************************/ 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的点阵************************************/ 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 }; /* 出厂自带音乐播放器图片 */ unsigned char BMP1[] = { 0x00,0x03,0x05,0x09,0x11,0xFF,0x11,0x89,0x05,0xC3,0x00,0xE0,0x00,0xF0,0x00,0xF8, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x44,0x28,0xFF,0x11,0xAA,0x44,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 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0x80,0xFF,0x80,0xEE,0xEE,0xEE,0xF5,0xFB,0xFF,0x9C,0xBE,0xB6,0xB6,0x88,0xFF,0x00, }; /* 64*64 小猫图片 */ unsigned char gImage[] = { 0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00, 0X00,0X00,0X00,0X00,0X00,0X00,0X20,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00, 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, 0X00,0X00,0X00,0X00,0X02,0X02,0X12,0X00,0X00,0X80,0X80,0X80,0X80,0X80,0X80,0X80, 0X80,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00, 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, 0XC0,0XE0,0XF0,0XF0,0XFC,0XFE,0XFE,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF, 0XFF,0XFF,0XFF,0XFE,0XFE,0XFE,0XFC,0XFC,0XF8,0XF8,0XF0,0XF0,0XE0,0XC0,0X80,0X00, 0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00, 0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0XE4,0XFF, 0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF, 0XFF,0X7E,0X7F,0X7F,0X7F,0X3F,0X3F,0X3F,0XBF,0XBF,0X3F,0X7F,0X7F,0XFF,0XFF,0XF8, 0XE0,0X80,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00, 0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X07,0XFF, 0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0X7F,0X3F,0X1F,0X87,0X83,0X81,0X83,0XC0,0XC4, 0XFC,0XFE,0XFE,0XFC,0XFE,0XFF,0XFE,0XC0,0XC5,0XC1,0XE1,0XE1,0XF8,0XFC,0XF8,0X00, 0XC0,0XC1,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00, 0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X07, 0X3F,0X7F,0X7F,0X1F,0XFF,0XFF,0X01,0XFE,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF, 0XFF,0X7F,0X3C,0XBC,0X88,0X98,0X3C,0X3F,0X7F,0XFF,0X7F,0XFF,0XD7,0X53,0X23,0XC4, 0XA7,0X33,0X07,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00, 0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00, 0X00,0X00,0XF1,0XFE,0XFD,0XF1,0XE7,0XE4,0XF9,0XFC,0XFF,0X9F,0X9F,0X9F,0X83,0X87, 0X8E,0X8E,0X07,0X03,0X01,0X01,0X01,0X00,0X00,0X00,0X00,0X01,0X04,0X01,0X00,0X01, 0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00, 0XC0,0XC0,0XE0,0XE0,0XF1,0XE1,0XE8,0XF0,0XF4,0XED,0XED,0XE5,0XE4,0XE4,0XE4,0XE4, 0XFC,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF, 0XFF,0XFF,0XFF,0XFF,0XFE,0XFF,0XFF,0XFF,0XFF,0XFC,0XFC,0XFE,0XFD,0XFE,0XF4,0XF9, 0XF9,0XFF,0XFC,0XF8,0X9F,0X86,0X8E,0X00,0X16,0X04,0X0F,0X04,0X00,0X00,0X00,0X00, };

oled_hw_i2c.h

#ifndef __OLED_HW_I2C_H__ #define __OLED_HW_I2C_H__ #include "system.h" #define OLED_ADDRESS 0x78 //通过调整0R电阻,屏可以0x78和0x7A两个地址 -- 默认0x78 void OLED_HW_I2C_Init(void); /* 这里也仅封装了写操作接口的封装 */ void I2C_WriteByte(uint8_t addr,uint8_t data); void WriteCmd(unsigned char I2C_Command); void WriteDat(unsigned char I2C_Data); 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 char y, unsigned char ch[], unsigned char TextSize); void OLED_ShowCN(unsigned char x, unsigned char y, unsigned char N); void OLED_DrawBMP(unsigned char x0,unsigned char y0,unsigned char x1,unsigned char y1,unsigned char BMP[]); #endif

oled_hw_i2c.c

/************************************************************************************ * File name: oled_hw_i2c.c * Project : NA * Processor: STM32F103ZET6 * Compiler : NA * * Author : voli.wu * Version: NA * Date : 2026.05.13 * Email : NA * Modification: NA * * Description:128*64点阵的OLED显示屏驱动文件，仅适用于惠特自动化(heltec.taobao.com)的SD1306驱动IIC通信方式显示屏 * * Others: NA * * Function List: * 1. void I2C_Configuration(void) -- 配置CPU的硬件I2C * 2. void I2C_WriteByte(uint8_t addr,uint8_t data) -- 向寄存器地址写一个byte的数据 * 3. void WriteCmd(unsigned char I2C_Command) -- 写命令 * 4. void WriteDat(unsigned char I2C_Data) -- 写数据 * 5. void OLED_Init(void) -- OLED屏初始化 * 6. void OLED_SetPos(unsigned char x, unsigned char y) -- 设置起始点坐标 * 7. void OLED_Fill(unsigned char fill_Data) -- 全屏填充 * 8. void OLED_CLS(void) -- 清屏 * 9. void OLED_ON(void) -- 唤醒 * 10. void OLED_OFF(void) -- 睡眠 * 11. void OLED_ShowStr(unsigned char x, unsigned char y, unsigned char ch[], unsigned char TextSize) -- 显示字符串(字体大小有6*8和8*16两种) * 12. void OLED_ShowCN(unsigned char x, unsigned char y, unsigned char N) -- 显示中文(中文需要先取模，然后放到codetab.h中) * 13. void OLED_DrawBMP(unsigned char x0,unsigned char y0,unsigned char x1,unsigned char y1,unsigned char BMP[]) -- BMP图片 * * History: NA; * *************************************************************************************/ #include "oled_hw_i2c.h" #include "codetab.h" //字库 #include "SysTick.h" //使用延时函数 //开始 → 等待总线空闲 → 发START → 发设备地址(写) → 发寄存器地址 → 发数据 → 发STOP → 结束 void I2C_WriteByte(uint8_t addr,uint8_t data) { while(I2C_GetFlagStatus(I2C1, I2C_FLAG_BUSY)); //总线忙标志位,如果总线忙就等待 I2C_GenerateSTART(I2C1, ENABLE); //开启I2C1 while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_MODE_SELECT)); /* 开启I2C1后，等待硬件确认 */ /* 如果从机地址有变化，这里需要修改 */ I2C_Send7bitAddress(I2C1, OLED_ADDRESS, I2C_Direction_Transmitter); //器件地址 -- 默认0x78；I2C_Direction_Transmitter：选择发送方向 while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED)); I2C_SendData(I2C1, addr); //寄存器地址 while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_TRANSMITTED)); I2C_SendData(I2C1, data); //发送数据 while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_TRANSMITTED)); I2C_GenerateSTOP(I2C1, ENABLE); //关闭I2C1总线 } void WriteCmd(unsigned char I2C_Command) //写命令 { I2C_WriteByte(0x00, I2C_Command); } void WriteDat(unsigned char I2C_Data) //写数据 { I2C_WriteByte(0x40, I2C_Data); } /* 在移植时，这里只需要关注具体使用哪个硬件I2C、配置时钟及初始化GPIO */ void OLED_HW_I2C_Init(void) { I2C_InitTypeDef I2C_InitStructure; GPIO_InitTypeDef GPIO_InitStructure; RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C1,ENABLE); //在使用GPIO软件模拟I2C时，不用开启I2C硬件时钟 RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB,ENABLE); /* PB6 -- SCL; PB7 -- SDA */ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6|GPIO_Pin_7; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_OD; //I2C必须开漏输出 GPIO_Init(GPIOB, &GPIO_InitStructure); /* 移植时，作为主机这些配置可不用修改 */ I2C_DeInit(I2C1); //将外设 I2Cx 寄存器重设为缺省值 I2C_InitStructure.I2C_Mode = I2C_Mode_I2C; //STM32作为主机，配置为该模式 I2C_InitStructure.I2C_DutyCycle = I2C_DutyCycle_2; //I2C_DutyCycle 用以设置 I2C 的占空比 I2C_InitStructure.I2C_OwnAddress1 = 0x30; //主机的I2C地址,随便写的 I2C_InitStructure.I2C_Ack = I2C_Ack_Enable; //使能应答（ACK） I2C_InitStructure.I2C_AcknowledgedAddress = I2C_AcknowledgedAddress_7bit; //I2C_AcknowledgedAddres 定义了应答 7 位地址还是 10 位地址 I2C_InitStructure.I2C_ClockSpeed = 400000; //400K; 该参数用来设置时钟频率，这个值不能高于 400KHz。 I2C_Init(I2C1, &I2C_InitStructure); I2C_Cmd(I2C1, ENABLE); //使能I2C外设 delay_ms(100); //这里的延时很重要 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); //亮度调节 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 } void OLED_SetPos(unsigned char x, unsigned char y) //设置起始点坐标 { WriteCmd(0xb0+y); WriteCmd(((x&0xf0)>>4)|0x10); WriteCmd((x&0x0f)|0x01); } void OLED_Fill(unsigned char fill_Data) //全屏填充 { unsigned char m,n; for(m=0;m<8;m++) { WriteCmd(0xb0+m); //page0-page1 WriteCmd(0x00); //low column start address WriteCmd(0x10); //high column start address for(n=0;n<128;n++) { WriteDat(fill_Data); } } } void OLED_CLS(void) //清屏 { OLED_Fill(0x00); } //-------------------------------------------------------------- // Prototype : void OLED_ON(void) // Calls : // Parameters : none // Description : 将OLED从休眠中唤醒 //-------------------------------------------------------------- void OLED_ON(void) { WriteCmd(0X8D); //设置电荷泵 WriteCmd(0X14); //开启电荷泵 WriteCmd(0XAF); //OLED唤醒 } //-------------------------------------------------------------- // Prototype : void OLED_OFF(void) // Calls : // Parameters : none // Description : 让OLED休眠 -- 休眠模式下,OLED功耗不到10uA //-------------------------------------------------------------- void OLED_OFF(void) { WriteCmd(0X8D); //设置电荷泵 WriteCmd(0X10); //关闭电荷泵 WriteCmd(0XAE); //OLED休眠 } //-------------------------------------------------------------- // Prototype : void OLED_ShowChar(unsigned char x, unsigned char y, unsigned char ch[], unsigned char TextSize) // Calls : // Parameters : x,y -- 起始点坐标(x:0~127, y:0~7); ch[] -- 要显示的字符串; TextSize -- 字符大小(1:6*8 ; 2:8*16) // Description : 显示codetab.h中的ASCII字符,有6*8和8*16可选择 //-------------------------------------------------------------- void OLED_ShowStr(unsigned char x, unsigned char y, unsigned char ch[], unsigned char TextSize) { unsigned char c = 0,i = 0,j = 0; switch(TextSize) { 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++) WriteDat(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++) WriteDat(F8X16[c*16+i]); OLED_SetPos(x,y+1); for(i=0;i<8;i++) WriteDat(F8X16[c*16+i+8]); x += 8; j++; } }break; } } //-------------------------------------------------------------- // Prototype : void OLED_ShowCN(unsigned char x, unsigned char y, unsigned char N) // Calls : // Parameters : x,y -- 起始点坐标(x:0~127, y:0~7); N:汉字在codetab.h中的索引 // Description : 显示codetab.h中的汉字,16*16点阵 //-------------------------------------------------------------- void OLED_ShowCN(unsigned char x, unsigned char y, unsigned char N) { unsigned char wm=0; unsigned int adder=32*N; OLED_SetPos(x , y); for(wm = 0;wm < 16;wm++) { WriteDat(F16x16[adder]); adder += 1; } OLED_SetPos(x,y + 1); for(wm = 0;wm < 16;wm++) { WriteDat(F16x16[adder]); adder += 1; } } //-------------------------------------------------------------- // Prototype : void OLED_DrawBMP(unsigned char x0,unsigned char y0,unsigned char x1,unsigned char y1,unsigned char BMP[]); // Calls : // Parameters : x0,y0 -- 起始点坐标(x0:0~127, y0:0~7); x1,y1 -- 起点对角线(结束点)的坐标(x1:1~128,y1:1~8) // Description : 显示BMP位图 //-------------------------------------------------------------- void OLED_DrawBMP(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++) { WriteDat(BMP[j++]); } } }

main.c

/* 1.该例程在oled_hw_i2c.c中未完全和iic的时序相关代码解耦，iic起始、停止等时序逻辑也集成在该文件中。 2.如果在项目中需要用到0.96 oled，需要把“OLED_HW_I2C”文件夹拷贝到对应工程下，头文件只需要修改“oled_hw_i2c.h”即可. 3.如果需要更改其他硬件I2C,需要修改oled_hw_i2c.c文件 4.oled初始化：OLED_HW_I2C_Init 5.目前对于oled的操作函数没有oled.c中丰富，一般使用GPIO模拟I2C，该例程就不多做介绍 6. */ #include "system.h" //已经包含了"stm32f10x.h" 以及定义了位带操作的宏，后续只包含该头文件就可以了 #include "SysTick.h" //使用delay_ms和delay_us #include "oled_hw_i2c.h" int main() { extern const unsigned char BMP1[]; extern const unsigned char gImage[]; SysTick_Init(72); //72为SYSCLK delay_ms延时函数需要使用 NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2); //设置中断分组2:2 在使用中断回调函数时都需要调用, 这里虽然没有使用中断，但还是留着 OLED_HW_I2C_Init(); while(1) { OLED_Fill(0xFF); //全屏点亮 delay_ms(1000); OLED_Fill(0x00); //全屏灭 delay_ms(1000); OLED_ShowStr(0,3," hello! hello!",1); //测试6*8字符 OLED_ShowStr(0,4," are you ok?",2); //测试8*16字符 delay_ms(1000); delay_ms(1000); OLED_CLS(); //清屏 OLED_OFF(); //测试OLED休眠 delay_ms(1000); OLED_ON(); //测试OLED休眠后唤醒 OLED_CLS(); //清屏 OLED_DrawBMP(32,0,96,8,(unsigned char *)gImage); //测试BMP位图显示 delay_ms(1000); delay_ms(1000); } }