一.IIC時序的理解

作為一個非常重要的通信協(xié)議，網(wǎng)上已有很多詳細(xì)的講解，此處不多贅述，只說一下我自己的理解。

IIC并非是一成不變的，具體需要發(fā)送的次數(shù)是由所使用的硬件模塊決定的。以我所使用的ssd1306來說，一個完整的數(shù)據(jù)發(fā)送，由開頭、發(fā)送設(shè)備地址、發(fā)送偏移地址、發(fā)送數(shù)據(jù)、結(jié)束組成，其中設(shè)備地址、偏移地址和數(shù)據(jù)，格式是相同的，本質(zhì)上都是一次數(shù)據(jù)發(fā)送，只不過根據(jù)所使用的硬件模塊不同，叫法不同。

下圖為一個完整的發(fā)送環(huán)節(jié)，包括開始標(biāo)志、三個數(shù)據(jù)的發(fā)送、結(jié)束標(biāo)志。綠色的是開始標(biāo)志；然后進(jìn)行一次數(shù)據(jù)的發(fā)送，我們將這個數(shù)據(jù)叫做設(shè)備地址；再進(jìn)行一次數(shù)據(jù)的發(fā)送，我們將這個數(shù)據(jù)叫做偏移地址；在進(jìn)行一次數(shù)據(jù)的發(fā)送，這是你想要往地址中寫入的數(shù)據(jù)；最后是是結(jié)束標(biāo)志。

所以說，通信協(xié)議就是主從間數(shù)據(jù)發(fā)送的格式約定，它規(guī)定了兩器件通信的數(shù)據(jù)發(fā)送接收格式是怎么樣的，但是對于具體的硬件并沒有規(guī)定數(shù)據(jù)需要發(fā)送幾次。這與你所使用的硬件模塊是息息相關(guān)，例如有的模塊的IIC接口約定只需要發(fā)設(shè)備地址和寫入的數(shù)據(jù)就行，有的約定需要發(fā)設(shè)備地址和好幾個數(shù)據(jù)才行，不能混作一起討論。

二.stm32c6t6的硬件IIC接口的使用

提前說明，根據(jù)一些大佬的說明，stm32的硬件IIC是有一些問題的，這些問題是由標(biāo)準(zhǔn)庫產(chǎn)生的，但是作為一個單片機(jī)愛好者，不進(jìn)行復(fù)雜的項目，基本的實(shí)現(xiàn)是沒有問題的。
對于ssd1306驅(qū)動的0.96寸oled，它約定的IIC一次完整的需要發(fā)送三個數(shù)據(jù)，第一個是設(shè)備地址0x78，這是固定的；第二個是0x00或者是0x40，如果第二個發(fā)送0x40，代表是要向oled寫數(shù)據(jù)，如果第二個寫入0x00，代表寫入的是命令，這是硬件實(shí)現(xiàn)的，本質(zhì)上都是1byte數(shù)據(jù)的發(fā)送，只是我們給他的名字不同；第三個就是要寫入的數(shù)據(jù)或者是命令。

oled.c

#include "oled.h" #include "oled_font.h" #include "delay.h"// IIC的初始化 void IIC_init(){I2C_InitTypeDef I2C_InitStructure;GPIO_InitTypeDef GPIO_InitStructure;// 使用硬件IIC，肯定要使能I2C時鐘。IO口作為輸出，也肯定要使能IO口時鐘。I2C使用的是IO口的復(fù)用功能，所以肯定需要使能復(fù)用時鐘RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C1, ENABLE);RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);// 接下來肯定是對結(jié)構(gòu)體的初始化I2C_DeInit(I2C1);I2C_InitStructure.I2C_Mode = I2C_Mode_I2C;I2C_InitStructure.I2C_Ack = I2C_Ack_Enable;I2C_InitStructure.I2C_DutyCycle = I2C_DutyCycle_2;I2C_InitStructure.I2C_OwnAddress1 = 0x78;I2C_InitStructure.I2C_ClockSpeed = 50000;I2C_InitStructure.I2C_AcknowledgedAddress = I2C_AcknowledgedAddress_7bit;I2C_Init(I2C1, &I2C_InitStructure);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;GPIO_Init(GPIOB, &GPIO_InitStructure);// 使能IICI2C_Cmd(I2C1, ENABLE); }// 寫數(shù)據(jù)，發(fā)送(0x78, 0x40, data) void IIC_WriteData(u8 data){u16 timeout = 1000;I2C_GenerateSTART(I2C1, ENABLE);while(!I2C_CheckEvent(I2C1,I2C_EVENT_MASTER_MODE_SELECT)){if((timeout--)==0){break;}} timeout=1000;// 庫函數(shù)，發(fā)送器件地址I2C_Send7bitAddress(I2C1, 0x78, I2C_Direction_Transmitter);while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED)){if((timeout--)==0){break;}} timeout=1000;I2C_SendData(I2C1, 0x40);while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_TRANSMITTED)){if((timeout--)==0){break;}} timeout=1000;I2C_SendData(I2C1, data);while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_TRANSMITTED)){if((timeout--)==0){break;}} timeout=1000;I2C_GenerateSTOP(I2C1, ENABLE); }// 寫命令，發(fā)送(0x78, 0x00, cmd) void IIC_WriteCmd(u8 cmd){u16 timeout = 1000;I2C_GenerateSTART(I2C1, ENABLE);while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_MODE_SELECT)){if((timeout--)==0){break;}} timeout=1000;I2C_Send7bitAddress(I2C1, 0x78, I2C_Direction_Transmitter);while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED)){if((timeout--)==0){break;}} timeout=1000;I2C_SendData(I2C1, 0x00);while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_TRANSMITTED)){if((timeout--)==0){break;}} timeout=1000;I2C_SendData(I2C1, cmd);while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_TRANSMITTED)){if((timeout--)==0){break;}} timeout=1000;I2C_GenerateSTOP(I2C1, ENABLE); }// OLED的清屏 void OLED_Clear(void) { u8 i,n; for(i=0;i<8;i++) { IIC_WriteCmd(0xb0+i); IIC_WriteCmd(0x00); IIC_WriteCmd(0x10); for(n=0;n<128;n++)IIC_WriteData(0); } }// 設(shè)置要寫入的開始坐標(biāo)，在后面會有說明 void SetPos(u8 x, u8 y){IIC_WriteCmd(0xb0+y);IIC_WriteCmd(((x&0xf0)>>4)|0x10);IIC_WriteCmd(x&0x0f); }// Show void OLED_ShowChar(u8 x, u8 y, u8 c, u8 size){unsigned char q = 0, i = 0;q = c - ' ';if(x > 127){x = 0;y = y + 2;}if(size == 16){SetPos(x, y);for(i = 0; i < 8; i++){IIC_WriteData(F8X16[q*16+i]);}SetPos(x, y+1);for(i = 0; i < 8; i++){IIC_WriteData(F8X16[q*16+i+8]);}}else{SetPos(x, y);for(i = 0; i < 6; i++){IIC_WriteData(F6x8[q][i]);}} }u32 oled_pow(u8 m,u8 n) {u32 result=1; while(n--)result*=m; return result; } void OLED_ShowNum(u8 x, u8 y, u8 num, u8 len, u8 size){u8 t,temp;u8 enshow=0; for(t=0;t<len;t++){temp=(num/oled_pow(10,len-t-1))%10;if(enshow==0&&t<(len-1)){if(temp==0){OLED_ShowChar(x+(size/2)*t,y,' ',size);continue;}else{enshow=1; } }OLED_ShowChar(x+(size/2)*t,y,temp+'0',size); } }void OLED_ShowString(u8 x, u8 y, u8 *chr, u8 Char_Size){unsigned char j=0;while (chr[j]!='\0'){ OLED_ShowChar(x,y,chr[j],Char_Size);x+=8;if(x>120){x=0;y+=2;}j++;} }// 0.96寸OLED的功能還是很強(qiáng)大的，可以通過寫命令，也就是向0x00偏移地址中寫數(shù)據(jù)實(shí)現(xiàn)不同的功能 // 對OLED進(jìn)行一些功能配置 void OLED_Init(){IIC_init();delay_ms(800);IIC_WriteCmd(0xAE);//--display offIIC_WriteCmd(0x00);//---set low column addressIIC_WriteCmd(0x10);//---set high column addressIIC_WriteCmd(0x40);//--set start line address IIC_WriteCmd(0xB0);//--set page addressIIC_WriteCmd(0x81); // contract controlIIC_WriteCmd(0xFF);//--128 IIC_WriteCmd(0xA1);//set segment remap IIC_WriteCmd(0xA6);//--normal / reverseIIC_WriteCmd(0xA8);//--set multiplex ratio(1 to 64)IIC_WriteCmd(0x3F);//--1/32 dutyIIC_WriteCmd(0xC8);//Com scan directionIIC_WriteCmd(0xD3);//-set display offsetIIC_WriteCmd(0x00);//IIC_WriteCmd(0xD5);//set osc divisionIIC_WriteCmd(0x80);//IIC_WriteCmd(0xD8);//set area color mode offIIC_WriteCmd(0x05);//IIC_WriteCmd(0xD9);//Set Pre-Charge PeriodIIC_WriteCmd(0xF1);//IIC_WriteCmd(0xDA);//set com pin configuartionIIC_WriteCmd(0x12);//IIC_WriteCmd(0xDB);//set VcomhIIC_WriteCmd(0x30);//IIC_WriteCmd(0x8D);//set charge pump enableIIC_WriteCmd(0x14);//IIC_WriteCmd(0xAF);//--turn on oled panel }

oled.c就是所有的函數(shù)。此時可能有人要問了，你不是說發(fā)送的設(shè)備地址本質(zhì)上還是數(shù)據(jù)么，為什么要用I2C_Send7bitAddress(I2C1, 0x78, I2C_Direction_Transmitter)函數(shù)，而后面兩個數(shù)據(jù)用的是I2C_SendData()。實(shí)際上經(jīng)過測試，將其替換為I2C_SendData()是完全可以的，這也就說明，IIC是只認(rèn)數(shù)據(jù)的，根本不知道這叫什么。但是具體這兩個函數(shù)有什么不同，替換后會有什么影響，以我的水平并不知道。

oled.h

#ifndef __OLED_H_ #define __OLED_H_ #include "sys.h"void IIC_Init(); void OLED_Init(); void OLED_ShowString(u8 x,u8 y,u8 *chr,u8 Char_Size); void OLED_ShowNum(u8 x, u8 y, u8 num, u8 len, u8 size); void OLED_ShowChar(u8 x, u8 y, u8 c, u8 size); void OLED_Clear(void);#endif

oled_font.h

#ifndef __OLED_FRONT_H_ #define __OLED_FRONT_H_ #include "sys.h"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???************************************/ const unsigned char F8X16[]= {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,// 00x00,0x00,0x00,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x33,0x30,0x00,0x00,0x00,//! 10x00,0x10,0x0C,0x06,0x10,0x0C,0x06,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//" 20x40,0xC0,0x78,0x40,0xC0,0x78,0x40,0x00,0x04,0x3F,0x04,0x04,0x3F,0x04,0x04,0x00,//# 30x00,0x70,0x88,0xFC,0x08,0x30,0x00,0x00,0x00,0x18,0x20,0xFF,0x21,0x1E,0x00,0x00,//$ 40xF0,0x08,0xF0,0x00,0xE0,0x18,0x00,0x00,0x00,0x21,0x1C,0x03,0x1E,0x21,0x1E,0x00,//% 50x00,0xF0,0x08,0x88,0x70,0x00,0x00,0x00,0x1E,0x21,0x23,0x24,0x19,0x27,0x21,0x10,//& 60x10,0x16,0x0E,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//' 70x00,0x00,0x00,0xE0,0x18,0x04,0x02,0x00,0x00,0x00,0x00,0x07,0x18,0x20,0x40,0x00,//( 80x00,0x02,0x04,0x18,0xE0,0x00,0x00,0x00,0x00,0x40,0x20,0x18,0x07,0x00,0x00,0x00,//) 90x40,0x40,0x80,0xF0,0x80,0x40,0x40,0x00,0x02,0x02,0x01,0x0F,0x01,0x02,0x02,0x00,//* 100x00,0x00,0x00,0xF0,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x1F,0x01,0x01,0x01,0x00,//+ 110x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xB0,0x70,0x00,0x00,0x00,0x00,0x00,//, 120x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01,//- 130x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,0x00,0x00,//. 140x00,0x00,0x00,0x00,0x80,0x60,0x18,0x04,0x00,0x60,0x18,0x06,0x01,0x00,0x00,0x00,/// 150x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x0F,0x10,0x20,0x20,0x10,0x0F,0x00,//0 160x00,0x10,0x10,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//1 170x00,0x70,0x08,0x08,0x08,0x88,0x70,0x00,0x00,0x30,0x28,0x24,0x22,0x21,0x30,0x00,//2 180x00,0x30,0x08,0x88,0x88,0x48,0x30,0x00,0x00,0x18,0x20,0x20,0x20,0x11,0x0E,0x00,//3 190x00,0x00,0xC0,0x20,0x10,0xF8,0x00,0x00,0x00,0x07,0x04,0x24,0x24,0x3F,0x24,0x00,//4 200x00,0xF8,0x08,0x88,0x88,0x08,0x08,0x00,0x00,0x19,0x21,0x20,0x20,0x11,0x0E,0x00,//5 210x00,0xE0,0x10,0x88,0x88,0x18,0x00,0x00,0x00,0x0F,0x11,0x20,0x20,0x11,0x0E,0x00,//6 220x00,0x38,0x08,0x08,0xC8,0x38,0x08,0x00,0x00,0x00,0x00,0x3F,0x00,0x00,0x00,0x00,//7 230x00,0x70,0x88,0x08,0x08,0x88,0x70,0x00,0x00,0x1C,0x22,0x21,0x21,0x22,0x1C,0x00,//8 240x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x00,0x31,0x22,0x22,0x11,0x0F,0x00,//9 250x00,0x00,0x00,0xC0,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,//: 260x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x60,0x00,0x00,0x00,0x00,//; 270x00,0x00,0x80,0x40,0x20,0x10,0x08,0x00,0x00,0x01,0x02,0x04,0x08,0x10,0x20,0x00,//< 280x40,0x40,0x40,0x40,0x40,0x40,0x40,0x00,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x00,//= 290x00,0x08,0x10,0x20,0x40,0x80,0x00,0x00,0x00,0x20,0x10,0x08,0x04,0x02,0x01,0x00,//> 300x00,0x70,0x48,0x08,0x08,0x08,0xF0,0x00,0x00,0x00,0x00,0x30,0x36,0x01,0x00,0x00,//? 310xC0,0x30,0xC8,0x28,0xE8,0x10,0xE0,0x00,0x07,0x18,0x27,0x24,0x23,0x14,0x0B,0x00,//@ 320x00,0x00,0xC0,0x38,0xE0,0x00,0x00,0x00,0x20,0x3C,0x23,0x02,0x02,0x27,0x38,0x20,//A 330x08,0xF8,0x88,0x88,0x88,0x70,0x00,0x00,0x20,0x3F,0x20,0x20,0x20,0x11,0x0E,0x00,//B 340xC0,0x30,0x08,0x08,0x08,0x08,0x38,0x00,0x07,0x18,0x20,0x20,0x20,0x10,0x08,0x00,//C 350x08,0xF8,0x08,0x08,0x08,0x10,0xE0,0x00,0x20,0x3F,0x20,0x20,0x20,0x10,0x0F,0x00,//D 360x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,0x20,0x3F,0x20,0x20,0x23,0x20,0x18,0x00,//E 370x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,0x20,0x3F,0x20,0x00,0x03,0x00,0x00,0x00,//F 380xC0,0x30,0x08,0x08,0x08,0x38,0x00,0x00,0x07,0x18,0x20,0x20,0x22,0x1E,0x02,0x00,//G 390x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,0x20,0x3F,0x21,0x01,0x01,0x21,0x3F,0x20,//H 400x00,0x08,0x08,0xF8,0x08,0x08,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//I 410x00,0x00,0x08,0x08,0xF8,0x08,0x08,0x00,0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,0x00,//J 420x08,0xF8,0x88,0xC0,0x28,0x18,0x08,0x00,0x20,0x3F,0x20,0x01,0x26,0x38,0x20,0x00,//K 430x08,0xF8,0x08,0x00,0x00,0x00,0x00,0x00,0x20,0x3F,0x20,0x20,0x20,0x20,0x30,0x00,//L 440x08,0xF8,0xF8,0x00,0xF8,0xF8,0x08,0x00,0x20,0x3F,0x00,0x3F,0x00,0x3F,0x20,0x00,//M 450x08,0xF8,0x30,0xC0,0x00,0x08,0xF8,0x08,0x20,0x3F,0x20,0x00,0x07,0x18,0x3F,0x00,//N 460xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,0x0F,0x10,0x20,0x20,0x20,0x10,0x0F,0x00,//O 470x08,0xF8,0x08,0x08,0x08,0x08,0xF0,0x00,0x20,0x3F,0x21,0x01,0x01,0x01,0x00,0x00,//P 480xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,0x0F,0x18,0x24,0x24,0x38,0x50,0x4F,0x00,//Q 490x08,0xF8,0x88,0x88,0x88,0x88,0x70,0x00,0x20,0x3F,0x20,0x00,0x03,0x0C,0x30,0x20,//R 500x00,0x70,0x88,0x08,0x08,0x08,0x38,0x00,0x00,0x38,0x20,0x21,0x21,0x22,0x1C,0x00,//S 510x18,0x08,0x08,0xF8,0x08,0x08,0x18,0x00,0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00,//T 520x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00,//U 530x08,0x78,0x88,0x00,0x00,0xC8,0x38,0x08,0x00,0x00,0x07,0x38,0x0E,0x01,0x00,0x00,//V 540xF8,0x08,0x00,0xF8,0x00,0x08,0xF8,0x00,0x03,0x3C,0x07,0x00,0x07,0x3C,0x03,0x00,//W 550x08,0x18,0x68,0x80,0x80,0x68,0x18,0x08,0x20,0x30,0x2C,0x03,0x03,0x2C,0x30,0x20,//X 560x08,0x38,0xC8,0x00,0xC8,0x38,0x08,0x00,0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00,//Y 570x10,0x08,0x08,0x08,0xC8,0x38,0x08,0x00,0x20,0x38,0x26,0x21,0x20,0x20,0x18,0x00,//Z 580x00,0x00,0x00,0xFE,0x02,0x02,0x02,0x00,0x00,0x00,0x00,0x7F,0x40,0x40,0x40,0x00,//[ 590x00,0x0C,0x30,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x06,0x38,0xC0,0x00,//\ 600x00,0x02,0x02,0x02,0xFE,0x00,0x00,0x00,0x00,0x40,0x40,0x40,0x7F,0x00,0x00,0x00,//] 610x00,0x00,0x04,0x02,0x02,0x02,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//^ 620x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,//_ 630x00,0x02,0x02,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//` 640x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x19,0x24,0x22,0x22,0x22,0x3F,0x20,//a 650x08,0xF8,0x00,0x80,0x80,0x00,0x00,0x00,0x00,0x3F,0x11,0x20,0x20,0x11,0x0E,0x00,//b 660x00,0x00,0x00,0x80,0x80,0x80,0x00,0x00,0x00,0x0E,0x11,0x20,0x20,0x20,0x11,0x00,//c 670x00,0x00,0x00,0x80,0x80,0x88,0xF8,0x00,0x00,0x0E,0x11,0x20,0x20,0x10,0x3F,0x20,//d 680x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x1F,0x22,0x22,0x22,0x22,0x13,0x00,//e 690x00,0x80,0x80,0xF0,0x88,0x88,0x88,0x18,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//f 700x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x6B,0x94,0x94,0x94,0x93,0x60,0x00,//g 710x08,0xF8,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20,//h 720x00,0x80,0x98,0x98,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//i 730x00,0x00,0x00,0x80,0x98,0x98,0x00,0x00,0x00,0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,//j 740x08,0xF8,0x00,0x00,0x80,0x80,0x80,0x00,0x20,0x3F,0x24,0x02,0x2D,0x30,0x20,0x00,//k 750x00,0x08,0x08,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//l 760x80,0x80,0x80,0x80,0x80,0x80,0x80,0x00,0x20,0x3F,0x20,0x00,0x3F,0x20,0x00,0x3F,//m 770x80,0x80,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20,//n 780x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00,//o 790x80,0x80,0x00,0x80,0x80,0x00,0x00,0x00,0x80,0xFF,0xA1,0x20,0x20,0x11,0x0E,0x00,//p 800x00,0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x0E,0x11,0x20,0x20,0xA0,0xFF,0x80,//q 810x80,0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x20,0x20,0x3F,0x21,0x20,0x00,0x01,0x00,//r 820x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x33,0x24,0x24,0x24,0x24,0x19,0x00,//s 830x00,0x80,0x80,0xE0,0x80,0x80,0x00,0x00,0x00,0x00,0x00,0x1F,0x20,0x20,0x00,0x00,//t 840x80,0x80,0x00,0x00,0x00,0x80,0x80,0x00,0x00,0x1F,0x20,0x20,0x20,0x10,0x3F,0x20,//u 850x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,0x00,0x01,0x0E,0x30,0x08,0x06,0x01,0x00,//v 860x80,0x80,0x00,0x80,0x00,0x80,0x80,0x80,0x0F,0x30,0x0C,0x03,0x0C,0x30,0x0F,0x00,//w 870x00,0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x31,0x2E,0x0E,0x31,0x20,0x00,//x 880x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,0x80,0x81,0x8E,0x70,0x18,0x06,0x01,0x00,//y 890x00,0x80,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x21,0x30,0x2C,0x22,0x21,0x30,0x00,//z 900x00,0x00,0x00,0x00,0x80,0x7C,0x02,0x02,0x00,0x00,0x00,0x00,0x00,0x3F,0x40,0x40,//{ 910x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,//| 920x00,0x02,0x02,0x7C,0x80,0x00,0x00,0x00,0x00,0x40,0x40,0x3F,0x00,0x00,0x00,0x00,//} 930x00,0x06,0x01,0x01,0x02,0x02,0x04,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//~ 94 };#endif

三.0.96寸OLED的使用

0.96寸OLED有三種模式，水平尋址、垂直尋址和頁尋址，此次我們使用就是頁尋址。
此oled的分辨率為128*64，也就是說橫著有128個像素，豎著有64個像素。在頁尋址模式中，橫著的128個像素是獨(dú)立的，豎著的64個像素分為8頁，我們只能同時向每一頁的每一列的8個像素中寫入8位數(shù)據(jù)。

例如我們要從屏幕的左上角開始寫，那么坐標(biāo)為(0, 0)。同理，如果坐標(biāo)為(27, 4)，那么就說明，我們是從第5頁，第28列的這個8*1的矩陣的第一個像素開始寫的，也就是橫著的第28個像素，豎著的第33個像素開始。

總結(jié)

以上是生活随笔為你收集整理的stm32c6t6硬件iic接口的使用--以0.96寸oled为例的全部內(nèi)容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網(wǎng)站內(nèi)容還不錯，歡迎將生活随笔推薦給好友。