mirror of
https://github.com/Jimmy-Bots/Short-Term.git
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251 lines
6.7 KiB
C
251 lines
6.7 KiB
C
/************************************************************************************
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* Copyright (c), 2013, HelTec Automatic Technology co.,LTD.
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* All rights reserved.
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*
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* Http: www.heltec.cn
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* Email: cn.heltec@gmail.com
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* WebShop: heltec.taobao.com
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*
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* File name: LQ12864.h
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* Project : OLED
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* Processor: STC89C52
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* Compiler : Keil C51 Compiler
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*
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* Author : 小林
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* Version: 1.00
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* Date : 2013.8.8
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* Email : hello14blog@gmail.com
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* Modification: none
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*
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* Description:128*64点整OLED模块驱动文件，仅适用heltec.taobao.com所售产品
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*
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* Others: none;
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*
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* Function List:
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*
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* 1. void delay(unsigned int z) -- 延时函数,毫秒
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* 2. void IIC_Start() -- 开启I2C总线
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* 3. void IIC_Stop() -- 关闭I2C总线
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* 4. void Write_IIC_Byte(unsigned char IIC_Byte) -- 通过I2C总线写一个byte的数据
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* 5. void OLED_WrDat(unsigned char dat) -- 向OLED屏写数据
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* 6. void OLED_WrCmd(unsigned char cmd) -- 向OLED屏写命令
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* 7. void OLED_Set_Pos(unsigned char x, unsigned char y) -- 设置显示坐标
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* 8. void OLED_Fill(unsigned char bmp_dat) -- 全屏显示(显示BMP图片时才会用到此功能)
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* 9. void OLED_CLS(void) -- 复位/清屏
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* 10. void OLED_Init(void) -- OLED屏初始化程序，此函数应在操作屏幕之前最先调用
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* 11. void OLED_P6x8Str(unsigned char x, y,unsigned char ch[]) -- 6x8点整，用于显示ASCII码的最小阵列，不太清晰
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* 12. void OLED_P8x16Str(unsigned char x, y,unsigned char ch[]) -- 8x16点整，用于显示ASCII码，非常清晰
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* 13.void OLED_P16x16Ch(unsigned char x, y, N) -- 16x16点整，用于显示汉字的最小阵列，可设置各种字体、加粗、倾斜、下划线等
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* 14.void Draw_BMP(unsigned char x0, y0,x1, y1,unsigned char BMP[]) -- 将128x64像素的BMP位图在取字软件中算出字表，然后复制到codetab中，此函数调用即可
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*
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* History: none;
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*
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*************************************************************************************/
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#include "reg52.h"
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// ------------------------------------------------------------
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// IO口模拟I2C通信
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// SCL接P1^3
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// SDA接P1^2
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// ------------------------------------------------------------
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sbit SCL=P1^3; //串行时钟
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sbit SDA=P1^4; //串行数据
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#define high 1
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#define low 0
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#define Brightness 0xCF
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#define X_WIDTH 128
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#define Y_WIDTH 64
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/*********************OLED驱动程序用的延时程序************************************/
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void delay(unsigned int z)
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{
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unsigned int x,y;
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for(x=z;x>0;x--)
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for(y=125;y>0;y--);
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}
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/**********************************************
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//IIC Start
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**********************************************/
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void IIC_Start()
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{
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SCL = high;
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SDA = high;
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SDA = low;
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SCL = low;
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}
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/**********************************************
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//IIC Stop
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**********************************************/
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void IIC_Stop()
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{
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SCL = low;
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SDA = low;
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SCL = high;
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SDA = high;
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}
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/**********************************************
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// 通过I2C总线写一个字节
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**********************************************/
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void Write_IIC_Byte(unsigned char IIC_Byte)
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{
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unsigned char i;
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for(i=0;i<8;i++)
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{
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if(IIC_Byte & 0x80)
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SDA=high;
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else
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SDA=low;
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SCL=high; //wait for replying //write the data to e2prom
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SCL=low;
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IIC_Byte<<=1;
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}
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SDA=1;
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SCL=1;
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SCL=0;
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}
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/*********************OLED写数据************************************/
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void OLED_WrDat(unsigned char IIC_Data)
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{
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IIC_Start();
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Write_IIC_Byte(0x78);
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Write_IIC_Byte(0x40); //write data
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Write_IIC_Byte(IIC_Data);
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IIC_Stop();
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}
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/*********************OLED写命令************************************/
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void OLED_WrCmd(unsigned char IIC_Command)
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{
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IIC_Start();
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Write_IIC_Byte(0x78); //Slave address,SA0=0
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Write_IIC_Byte(0x00); //write command
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Write_IIC_Byte(IIC_Command);
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IIC_Stop();
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}
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/*********************OLED 设置坐标************************************/
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void OLED_Set_Pos(unsigned char x, unsigned char y)
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{
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OLED_WrCmd(0xb0+y);
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OLED_WrCmd(((x&0xf0)>>4)|0x10);
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OLED_WrCmd((x&0x0f)|0x01);
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}
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/*********************OLED全屏************************************/
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void OLED_Fill(unsigned char bmp_dat)
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{
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unsigned char y,x;
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for(y=0;y<8;y++)
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{
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OLED_WrCmd(0xb0+y);
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OLED_WrCmd(0x01);
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OLED_WrCmd(0x10);
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for(x=0;x<X_WIDTH;x++)
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OLED_WrDat(bmp_dat);
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}
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}
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/*********************OLED复位************************************/
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void OLED_CLS(void)
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{
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unsigned char y,x;
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for(y=0;y<8;y++)
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{
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OLED_WrCmd(0xb0+y);
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OLED_WrCmd(0x01);
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OLED_WrCmd(0x10);
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for(x=0;x<X_WIDTH;x++)
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OLED_WrDat(0);
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}
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}
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void OLED_P16x16(unsigned char x, y, N)
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{
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unsigned char wm=0;
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unsigned int adder=32*N;
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OLED_Set_Pos(x , y);
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for(wm = 0;wm < 16;wm++)
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{
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OLED_WrDat(F16x16[adder]);
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adder += 1;
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}
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OLED_Set_Pos(x,y + 1);
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for(wm = 0;wm < 16;wm++)
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{
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OLED_WrDat(F16x16[adder]);
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adder += 1;
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}
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}
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void OLED_P16(unsigned char x, y, N)
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{
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unsigned char wm=0;
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unsigned int adder=32*N;
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OLED_Set_Pos(x , y);
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for(wm = 0;wm < 16;wm++)
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{
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OLED_WrDat(F16[adder]);
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adder += 1;
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}
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OLED_Set_Pos(x,y + 1);
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for(wm = 0;wm < 16;wm++)
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{
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OLED_WrDat(F16[adder]);
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adder += 1;
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}
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}
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/*********************OLED初始化************************************/
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void OLED_Init(void)
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{
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delay(500);//初始化之前的延时很重要！
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OLED_WrCmd(0xae);//--turn off oled panel
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OLED_WrCmd(0x00);//---set low column address
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OLED_WrCmd(0x10);//---set high column address
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OLED_WrCmd(0x40);//--set start line address Set Mapping RAM Display Start Line (0x00~0x3F)
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OLED_WrCmd(0x81);//--set contrast control register
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OLED_WrCmd(Brightness); // Set SEG Output Current Brightness
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OLED_WrCmd(0xa1);//--Set SEG/Column Mapping 0xa0左右反置 0xa1正常
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OLED_WrCmd(0xc8);//Set COM/Row Scan Direction 0xc0上下反置 0xc8正常
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OLED_WrCmd(0xa6);//--set normal display
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OLED_WrCmd(0xa8);//--set multiplex ratio(1 to 64)
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OLED_WrCmd(0x3f);//--1/64 duty
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OLED_WrCmd(0xd3);//-set display offset Shift Mapping RAM Counter (0x00~0x3F)
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OLED_WrCmd(0x00);//-not offset
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OLED_WrCmd(0xd5);//--set display clock divide ratio/oscillator frequency
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OLED_WrCmd(0x80);//--set divide ratio, Set Clock as 100 Frames/Sec
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OLED_WrCmd(0xd9);//--set pre-charge period
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OLED_WrCmd(0xf1);//Set Pre-Charge as 15 Clocks & Discharge as 1 Clock
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OLED_WrCmd(0xda);//--set com pins hardware configuration
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OLED_WrCmd(0x12);
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OLED_WrCmd(0xdb);//--set vcomh
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OLED_WrCmd(0x40);//Set VCOM Deselect Level
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OLED_WrCmd(0x20);//-Set Page Addressing Mode (0x00/0x01/0x02)
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OLED_WrCmd(0x02);//
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OLED_WrCmd(0x8d);//--set Charge Pump enable/disable
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OLED_WrCmd(0x14);//--set(0x10) disable
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OLED_WrCmd(0xa4);// Disable Entire Display On (0xa4/0xa5)
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OLED_WrCmd(0xa6);// Disable Inverse Display On (0xa6/a7)
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OLED_WrCmd(0xaf);//--turn on oled panel
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OLED_Fill(0x00); //初始清屏
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OLED_Set_Pos(0,0);
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}
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void OLED_P8x16Str(unsigned char x, y,unsigned char ch[])
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{
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unsigned char c=0,i=0,j=0;
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while (ch[j]!='\0')
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{
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c =ch[j]-32;
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if(x>120){x=0;y++;}
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OLED_Set_Pos(x,y);
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for(i=0;i<8;i++)
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OLED_WrDat(F8X16[c*16+i]);
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OLED_Set_Pos(x,y+1);
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for(i=0;i<8;i++)
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OLED_WrDat(F8X16[c*16+i+8]);
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x+=8;
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j++;
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}
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} |