MSP430学习笔记（四）丨I2C通信（MSP430F5529驱动OLED显示屏）_msp430的软件iic通信控制ole

uint8_t USCI_B_I2C_masterIsStopSent(uint16_t baseAddress);

// 指示是否已发送起始位 uint8_t USCI_B_I2C_masterIsStartSent(uint16_t baseAddress);

// 主模块用于启动起始位的函数 void USCI_B_I2C_masterSendStart(uint16_t baseAddress);

// 启用单独的I2C中断源 void USCI_B_I2C_enableInterrupt(uint16_t baseAddress, uint8_t mask);

// 禁用单独的I2C中断源 void USCI_B_I2C_disableInterrupt(uint16_t baseAddress, uint8_t mask);

// 清除I2C中断源 void USCI_B_I2C_clearInterrupt(uint16_t baseAddress, uint8_t mask);

// 获取当前I2C中断状态 uint8_t USCI_B_I2C_getInterruptStatus(uint16_t baseAddress, uint8_t mask);

// 从主模块向从模块发送单个字节 void USCI_B_I2C_masterSendSingleByte(uint16_t baseAddress, uint8_t txData);

// 从主模块向从模块发送单个字节，并带有超时功能 bool USCI_B_I2C_masterSendSingleByteWithTimeout(uint16_t baseAddress, uint8_t txData, uint32_t timeout);

// 从主模块启动多字节传输到从模块 void USCI_B_I2C_masterSendMultiByteStart(uint16_t baseAddress, uint8_t txData);

// 从主模块启动多字节传输到从模块，并带有超时功能 bool USCI_B_I2C_masterSendMultiByteStartWithTimeout(uint16_t baseAddress, uint8_t txData, uint32_t timeout);

// 从主模块继续多字节传输到从模块 void USCI_B_I2C_masterSendMultiByteNext(uint16_t baseAddress, uint8_t txData);

// 从主模块继续多字节传输到从模块，并带有超时功能 bool USCI_B_I2C_masterSendMultiByteNextWithTimeout(uint16_t baseAddress, uint8_t txData, uint32_t timeout);

// 从主模块完成多字节传输到从模块 void USCI_B_I2C_masterSendMultiByteFinish(uint16_t baseAddress, uint8_t txData);

// 从主模块完成多字节传输到从模块，并带有超时功能 bool USCI_B_I2C_masterSendMultiByteFinishWithTimeout(uint16_t baseAddress, uint8_t txData, uint32_t timeout);

// 从主模块发送停止位以结束多字节传输到从模块 void USCI_B_I2C_masterSendMultiByteStop(uint16_t baseAddress);

// 从主模块发送停止位以结束多字节传输到从模块，并带有超时功能 bool USCI_B_I2C_masterSendMultiByteStopWithTimeout(uint16_t baseAddress, uint32_t timeout);

// 从主模块开始多字节接收 void USCI_B_I2C_masterReceiveMultiByteStart(uint16_t baseAddress);

// 从主模块逐个字节开始多字节接收 uint8_t USCI_B_I2C_masterReceiveMultiByteNext(uint16_t baseAddress);

// 从主模块完成多字节接收 uint8_t USCI_B_I2C_masterReceiveMultiByteFinish(uint16_t baseAddress);

// 从主模块完成多字节接收，并带有超时功能 bool USCI_B_I2C_masterReceiveMultiByteFinishWithTimeout(uint16_t baseAddress, uint8_t *rxData, uint32_t timeout);

// 从主模块发送停止位以结束多字节接收 void USCI_B_I2C_masterReceiveMultiByteStop(uint16_t baseAddress);

// 从主模块开始单字节接收 void USCI_B_I2C_masterReceiveSingleStart(uint16_t baseAddress);

// 从主模块开始单字节接收，并带有超时功能 bool USCI_B_I2C_masterReceiveSingleStartWithTimeout(uint16_t baseAddress, uint32_t timeout);

// 从I2C主模块接收已发送到其的字节 uint8_t USCI_B_I2C_masterReceiveSingle(uint16_t baseAddress);

// 返回用于DMA模块的I2C接收缓冲区的地址 uint32_t USCI_B_I2C_getReceiveBufferAddressForDMA(uint16_t baseAddress);

// 返回用于DMA模块的I2C发送缓冲区的地址 uint32_t USCI_B_I2C_getTransmitBufferAddressForDMA(uint16_t baseAddress);


## 三、OLED驱动代码


* `OLED.h`

/* * OLED.h * * Created on: 2023年7月12日 * Author: Include everything */

#ifndef HARDWARE_OLED_H_ #define HARDWARE_OLED_H_

void OLED_Init(void); void OLED_Clear(void); void OLED_ShowChar(uint8_t Line, uint8_t Column, char Char); void OLED_ShowString(uint8_t Line, uint8_t Column, char *String); void OLED_ShowNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length); void OLED_ShowSignedNum(uint8_t Line, uint8_t Column, int32_t Number, uint8_t Length); void OLED_ShowHexNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length); void OLED_ShowBinNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length);

#endif /* HARDWARE_OLED_H_ */


* `OLED_Font.h`

/* * OLED_Font.h * * Created on: 2023年7月12日 * Author: Include everything */

#ifndef HARDWARE_OLED_FONT_H_ #define HARDWARE_OLED_FONT_H_

/*OLED字模库，宽8像素，高16像素*/ const uint8_t OLED_F8x16[][16]= { 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

};

#endif /* HARDWARE_OLED_FONT_H_ */


* `OLED.c`

/* * OLED.c * * Created on: 2023年7月12日 * Author: Include everything */

#include <driverlib.h> #include "OLED_Font.h"

//#define I2C_USCI_IV UCB0IV

static uint8_t LastByteFlag = 0; static uint8_t I2C_Tx_BufData = 0; // 数据缓冲字节，供中断函数使用

/*引脚初始化*/ void OLED_I2C_Init(void) { GPIO_setAsPeripheralModuleFunctionOutputPin(GPIO_PORT_P3, GPIO_PIN0 | GPIO_PIN1);

USCI_B_I2C_initMasterParam USCI_B_I2C_InitStructure;

USCI_B_I2C_InitStructure.dataRate = USCI_B_I2C_SET_DATA_RATE_400KBPS;
USCI_B_I2C_InitStructure.i2cClk = UCS\_getSMCLK();
USCI_B_I2C_InitStructure.selectClockSource = USCI_B_I2C_CLOCKSOURCE_SMCLK;

USCI\_B\_I2C\_initMaster(USCI_B0_BASE, &USCI_B_I2C_InitStructure);

// 设置从机地址，之后的时序中不需要再发送从机地址
USCI\_B\_I2C\_setSlaveAddress(USCI_B0_BASE, 0x78 >> 1);

USCI\_B\_I2C\_setMode(USCI_B0_BASE, USCI_B_I2C_TRANSMIT_MODE);
USCI\_B\_I2C\_enable(USCI_B0_BASE);

// 使能传送中断，用来接收从机的响应信号
USCI\_B\_I2C\_clearInterrupt(USCI_B0_BASE, USCI_B_I2C_TRANSMIT_INTERRUPT);
USCI\_B\_I2C\_enableInterrupt(USCI_B0_BASE, USCI_B_I2C_TRANSMIT_INTERRUPT);

}

/** * @brief I2C发送一个字节 * @param Byte 要发送的一个字节 * @retval 无 */ void OLED_I2C_SendByte(uint8_t Byte) { while (USCI_B_I2C_isBusBusy(USCI_B0_BASE));

USCI\_B\_I2C\_masterSendSingleByte(USCI_B0_BASE, Byte);

// 等待中断响应
\_\_bis\_SR\_register(GIE + LPM0_bits);
\_\_no\_operation();

}

/** * @brief OLED写命令 * @param Command 要写入的命令 * @retval 无 */ void OLED_WriteCommand(uint8_t Command) { while (USCI_B_I2C_isBusBusy(USCI_B0_BASE));

LastByteFlag = 0;
I2C_Tx_BufData = Command;
USCI\_B\_I2C\_masterSendMultiByteStart(USCI_B0_BASE, 0x00);

// 等待中断响应
\_\_bis\_SR\_register(GIE + LPM0_bits);
\_\_no\_operation();

}

/** * @brief OLED写数据 * @param Data 要写入的数据 * @retval 无 */ void OLED_WriteData(uint8_t Data) { while (USCI_B_I2C_isBusBusy(USCI_B0_BASE));

LastByteFlag = 0;
I2C_Tx_BufData = Data;
USCI\_B\_I2C\_masterSendMultiByteStart(USCI_B0_BASE, 0x40);

// 等待中断响应
\_\_bis\_SR\_register(GIE + LPM0_bits);
\_\_no\_operation();

}

/** * @brief OLED设置光标位置 * @param Y 以左上角为原点，向下方向的坐标，范围：0~~7 * @param X 以左上角为原点，向右方向的坐标，范围：0~~127 * @retval 无 */ void OLED_SetCursor(uint8_t Y, uint8_t X) { OLED_WriteCommand(0xB0 | Y); //设置Y位置 OLED_WriteCommand(0x10 | ((X & 0xF0) >> 4)); //设置X位置高4位 OLED_WriteCommand(0x00 | (X & 0x0F)); //设置X位置低4位 }

/** * @brief OLED清屏 * @param 无 * @retval 无 */ void OLED_Clear(void) { uint8_t i, j; for (j = 0; j < 8; j++) { OLED_SetCursor(j, 0); for(i = 0; i < 128; i++) { OLED_WriteData(0x00); } } }

/** * @brief OLED显示一个字符 * @param Line 行位置，范围：1~~4 * @param Column 列位置，范围：1~~16 * @param Char 要显示的一个字符，范围：ASCII可见字符 * @retval 无 */ void OLED_ShowChar(uint8_t Line, uint8_t Column, char Char) { uint8_t i; OLED_SetCursor((Line - 1) * 2, (Column - 1) * 8); //设置光标位置在上半部分 for (i = 0; i < 8; i++) { OLED_WriteData(OLED_F8x16[Char - ' '][i]); //显示上半部分内容 } OLED_SetCursor((Line - 1) * 2 + 1, (Column - 1) * 8); //设置光标位置在下半部分 for (i = 0; i < 8; i++) { OLED_WriteData(OLED_F8x16[Char - ' '][i + 8]); //显示下半部分内容 } }

/** * @brief OLED显示字符串 * @param Line 起始行位置，范围：1~~4 * @param Column 起始列位置，范围：1~~16 * @param String 要显示的字符串，范围：ASCII可见字符 * @retval 无 */ void OLED_ShowString(uint8_t Line, uint8_t Column, char *String) { uint8_t i; for (i = 0; String[i] != '\0'; i++) { OLED_ShowChar(Line, Column + i, String[i]); } }

/** * @brief OLED次方函数 * @retval 返回值等于X的Y次方 */ uint32_t OLED_Pow(uint32_t X, uint32_t Y) { uint32_t Result = 1; while (Y--) { Result *= X; } return Result; }

/** * @brief OLED显示数字（十进制，正数） * @param Line 起始行位置，范围：1~~4 * @param Column 起始列位置，范围：1~~16 * @param Number 要显示的数字，范围：0~~4294967295 * @param Length 要显示数字的长度，范围：1~~10 * @retval 无 */ void OLED_ShowNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length) { uint8_t i; for (i = 0; i < Length; i++) { OLED_ShowChar(Line, Column + i, Number / OLED_Pow(10, Length - i - 1) % 10 + '0'); } }

/** * @brief OLED显示数字（十进制，带符号数） * @param Line 起始行位置，范围：1~~4 * @param Column 起始列位置，范围：1~~16 * @param Number 要显示的数字，范围：-2147483648~~2147483647 * @param Length 要显示数字的长度，范围：1~~10 * @retval 无 */ void OLED_ShowSignedNum(uint8_t Line, uint8_t Column, int32_t Number, uint8_t Length) { uint8_t i; uint32_t Number1; if (Number >= 0) { OLED_ShowChar(Line, Column, '+'); Number1 = Number; } else { OLED_ShowChar(Line, Column, '-'); Number1 = -Number; } for (i = 0; i < Length; i++) { OLED_ShowChar(Line, Column + i + 1, Number1 / OLED_Pow(10, Length - i - 1) % 10 + '0'); } }

/** * @brief OLED显示数字（十六进制，正数） * @param Line 起始行位置，范围：1~~4 * @param Column 起始列位置，范围：1~~16 * @param Number 要显示的数字，范围：0~~0xFFFFFFFF * @param Length 要显示数字的长度，范围：1~~8 * @retval 无 */ void OLED_ShowHexNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length) { uint8_t i, SingleNumber; for (i = 0; i < Length; i++) { SingleNumber = Number / OLED_Pow(16, Length - i - 1) % 16; if (SingleNumber < 10) { OLED_ShowChar(Line, Column + i, SingleNumber + '0'); } else { OLED_ShowChar(Line, Column + i, SingleNumber - 10 + 'A'); } } }

/** * @brief OLED显示数字（二进制，正数） * @param Line 起始行位置，范围：1~~4 * @param Column 起始列位置，范围：1~~16 * @param Number 要显示的数字，范围：0~~1111 1111 1111 1111 * @param Length 要显示数字的长度，范围：1~~16 * @retval 无 */ void OLED_ShowBinNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length) { uint8_t i; for (i = 0; i < Length; i++) { OLED_ShowChar(Line, Column + i, Number / OLED_Pow(2, Length - i - 1) % 2 + '0'); } }

/** * @brief OLED初始化 * @param 无 * @retval 无 */ void OLED_Init(void) { uint32_t i, j;

for (i = 0; i < 1000; i++)          //上电延时
{
    for (j = 0; j < 1000; j++);
}

OLED\_I2C\_Init();            //端口初始化

OLED\_WriteCommand(0xAE);    //关闭显示

OLED\_WriteCommand(0xD5);    //设置显示时钟分频比/振荡器频率
OLED\_WriteCommand(0x80);

OLED\_WriteCommand(0xA8);    //设置多路复用率
OLED\_WriteCommand(0x3F);

OLED\_WriteCommand(0xD3);    //设置显示偏移
OLED\_WriteCommand(0x00);

OLED\_WriteCommand(0x40);    //设置显示开始行

OLED\_WriteCommand(0xA1);    //设置左右方向，0xA1正常 0xA0左右反置

OLED\_WriteCommand(0xC8);    //设置上下方向，0xC8正常 0xC0上下反置

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