基于8051内核单片机模拟IIC驱动OLED的记录
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iic.h
#ifndef __IIC_H__
#define __IIC_H__
#include "CM9T83XX.h"
#include "common.h"
#define SCL PB0
#define SDA PB1
void Dri_IIC_Start();
void Dri_IIC_Stop();
void Dri_IIC_SendByte(u8 byte);
u8 Dri_IIC_ReceiveByte();
void Dri_IIC_SendAck(bit ack);
bit Dri_IIC_ReceiveAck();
#endif
iic.c
#include "iic.h"
#include <intrins.h>
bdata u8 bit_byte;
sbit msb_bit = bit_byte ^ 7;
void Dri_IIC_Start()
{
SCL = 1;
SDA = 1;
SDA = 0;
SCL = 0;
}
void Dri_IIC_Stop()
{
SDA = 0;
SCL = 1;
SDA = 1;
}
void Dri_IIC_SendByte(u8 byte)
{
u8 i;
bit_byte = byte;
for (i = 0; i < 8; i++) {
SDA = msb_bit;
bit_byte <<= 1;
SCL = 1;
SCL = 0;
}
}
u8 Dri_IIC_ReceiveByte()
{
u8 byte = 0;
u8 i;
SDA = 1;
for (i = 0; i < 8; i++) {
SCL = 1;
byte = (byte << 1) | SDA;
SCL = 0;
}
return byte;
}
void Dri_IIC_SendAck(bit ack)
{
SDA = ack;
SCL = 1;
SCL = 0;
}
bit Dri_IIC_ReceiveAck()
{
bit ack;
SDA = 1;
SCL = 1;
ack = SDA;
SCL = 0;
return ack;
}
oled.h
#ifndef __OLED_H__
#define __OLED_H__
#include "common.h"
#define DEV_ADDR 0x78
#define DATA_MODE 0x40
#define CMD_MODE 0x00
void Int_OLED_WriteData(u8 bytes[], u8 length);
void Int_OLED_WriteCmd(u8 bytes[], u8 length);
void Int_OLED_Init();
void Int_OLED_Clear();
/**
* @brief 在指定位置（x,y）显示字符串
*
* @param x 横坐标
* @param y 纵坐标
* @param str 待展示字符串
*/
void Int_OLED_ShowStr(u8 x, u8 y, u8 *str);
/**
* @brief 在指定位置(x,y)显示数字
*
* @param x 横坐标
* @param y 纵坐标
* @param num 待展示数字
*/
void Int_OLED_ShowNum(u8 x, u8 y, long int num);
#endif
oled.c
#include "oled.h"
#include "iic.h"
#include <STDIO.H>
code const u8 Int_OLED_Font[][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
};
void Int_OLED_WriteData(u8 bytes[], u8 length)
{
u8 i;
Dri_IIC_Start();
Dri_IIC_SendByte(DEV_ADDR);
Dri_IIC_ReceiveAck();
Dri_IIC_SendByte(DATA_MODE);
Dri_IIC_ReceiveAck();
for (i = 0; i < length; i++) {
Dri_IIC_SendByte(bytes[i]);
Dri_IIC_ReceiveAck();
}
Dri_IIC_Stop();
}
void Int_OLED_WriteCmd(u8 bytes[], u8 length)
{
u8 i;
Dri_IIC_Start();
Dri_IIC_SendByte(DEV_ADDR);
Dri_IIC_ReceiveAck();
Dri_IIC_SendByte(CMD_MODE);
Dri_IIC_ReceiveAck();
for (i = 0; i < length; i++) {
Dri_IIC_SendByte(bytes[i]);
Dri_IIC_ReceiveAck();
}
Dri_IIC_Stop();
}
void Int_OLED_Init()
{
u8 cmd_bytes[6];
// 关闭屏幕
cmd_bytes[0] = 0xAE;
// 行重映射
cmd_bytes[1] = 0xC8;
// 列重映射
cmd_bytes[2] = 0xA1;
// 电荷泵
cmd_bytes[3] = 0x8D;
cmd_bytes[4] = 0x14;
// 开启屏幕
cmd_bytes[5] = 0xAF;
Int_OLED_WriteCmd(cmd_bytes, 6);
}
void Int_OLED_Clear()
{
u8 cmd_bytes[2];
u8 data_bytes[8] = {0};
u16 i;
cmd_bytes[0] = 0x20;
cmd_bytes[1] = 0x00;
Int_OLED_WriteCmd(cmd_bytes, 2);
Dri_IIC_Start();
Dri_IIC_SendByte(DEV_ADDR);
Dri_IIC_ReceiveAck();
Dri_IIC_SendByte(DATA_MODE);
Dri_IIC_ReceiveAck();
for (i = 0; i < 128 * 8; i++) {
Dri_IIC_SendByte(0x00);
Dri_IIC_ReceiveAck();
}
Dri_IIC_Stop();
}
/**
* @brief 设置指针
*
* @param page [0-7]
* @param column [0-127]
*/
void Int_OLED_SetPointer(u8 page, u8 column)
{
u8 cmd_bytes[3];
// 页地址
cmd_bytes[0] = 0xB0 | page;
// 列地址
cmd_bytes[1] = 0x0F & column;
cmd_bytes[2] = 0x10 | (column >> 4);
Int_OLED_WriteCmd(cmd_bytes, 3);
}
void Int_OLED_ShowStr(u8 x, u8 y, u8 *str)
{
u8 i;
// 设置寻址模式——页寻址
u8 cmd_bytes[2];
cmd_bytes[0] = 0x20;
cmd_bytes[1] = 0x02;
Int_OLED_WriteCmd(cmd_bytes, 2);
// 写上半部分
// 设置起始位置
Int_OLED_SetPointer(2 * y, 8 * x);
// 写入显示数据
for (i = 0; str[i] != 0 && i < 16 - x; i++) {
Int_OLED_WriteData(Int_OLED_Font[str[i] - 32], 8);
}
// 写下半部分
// 设置起始位置
Int_OLED_SetPointer(2 * y + 1, 8 * x);
// 写入显示数据
for (i = 0; str[i] != 0 && i < 16 - x; i++) {
Int_OLED_WriteData(Int_OLED_Font[str[i] - 32] + 8, 8);
}
}
// void Int_OLED_ShowNum(u8 x, u8 y, long int num)
// {
// char str[12];
// sprintf(str, "%ld", num);
// Int_OLED_ShowStr(x, y, str);
// }
void Int_OLED_ShowNum(u8 x, u8 y, long int num)
{
// 12345
char str[12];
long int tmp = 1;
u8 i = 0;
if (num < 0) {
str[i++] = '-';
num = -num;
}
while (num / tmp >= 10) {
tmp *= 10;
}
while (tmp > 0) {
str[i++] = num / tmp + '0';
num %= tmp;
tmp /= 10;
}
str[i] = 0;
Int_OLED_ShowStr(x, y, str);
}
使用
Int_OLED_Init();
Int_OLED_Clear();
Int_OLED_ShowStr(0, 0, "Hello World!");
Int_OLED_ShowNum(0, 1, -12345678);