423 lines
8.8 KiB
C
423 lines
8.8 KiB
C
//////////////////////////////////////////////////////////////////////////////////
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//本程序只供学习使用，未经作者许可，不得用于其它任何用途
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//中景园电子
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//店铺地址：http://shop73023976.taobao.com/?spm=2013.1.0.0.M4PqC2
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//
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// 文 件 名 : main.c
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// 版 本 号 : v2.0
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// 作 者 : HuangKai
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// 生成日期 : 2014-0101
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// 最近修改 :
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// 功能描述 : OLED 4接口演示例程(51系列)
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// 说明:
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// ----------------------------------------------------------------
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// GND 电源地
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// VCC 接5V或3.3v电源
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// D0 P1^0（SCL）
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// D1 P1^1（SDA）
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// RES 接P12
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// DC 接P13
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// CS 接P14
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// ----------------------------------------------------------------
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// 修改历史 :
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// 日 期 :
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// 作 者 : HuangKai
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// 修改内容 : 创建文件
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//版权所有，盗版必究。
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//Copyright(C) 中景园电子2014/3/16
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//All rights reserved
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//******************************************************************************/。
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#include "oled.h"
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//#include "stdlib.h"
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#include "oledfont.h"
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//#include "delay.h"
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//OLED的显存
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//存放格式如下.
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//[0]0 1 2 3 ... 127
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//[1]0 1 2 3 ... 127
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//[2]0 1 2 3 ... 127
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//[3]0 1 2 3 ... 127
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//[4]0 1 2 3 ... 127
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//[5]0 1 2 3 ... 127
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//[6]0 1 2 3 ... 127
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//[7]0 1 2 3 ... 127
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void delay_ms(unsigned int ms)
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{
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unsigned int a;
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while(ms)
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{
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a=1800;
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while(a--);
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ms--;
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}
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return;
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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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OLED_SCLK_Set() ;
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OLED_SDIN_Set();
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OLED_SDIN_Clr();
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OLED_SCLK_Clr();
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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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OLED_SCLK_Set() ;
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// OLED_SCLK_Clr();
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OLED_SDIN_Clr();
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OLED_SDIN_Set();
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}
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void IIC_Wait_Ack()
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{
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//GPIOB->CRH &= 0XFFF0FFFF; //设置PB12为上拉输入模式
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//GPIOB->CRH |= 0x00080000;
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// OLED_SDA = 1;
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// delay_us(1);
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//OLED_SCL = 1;
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//delay_us(50000);
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/* while(1)
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{
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if(!OLED_SDA) //判断是否接收到OLED 应答信号
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{
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//GPIOB->CRH &= 0XFFF0FFFF; //设置PB12为通用推免输出模式
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//GPIOB->CRH |= 0x00030000;
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return;
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}
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}
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*/
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OLED_SCLK_Set() ;
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OLED_SCLK_Clr();
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}
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/**********************************************
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// IIC Write byte
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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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unsigned char m,da;
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da=IIC_Byte;
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OLED_SCLK_Clr();
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for(i=0;i<8;i++)
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{
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m=da;
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// OLED_SCLK_Clr();
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m=m&0x80;
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if(m==0x80)
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{OLED_SDIN_Set();}
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else OLED_SDIN_Clr();
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da=da<<1;
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OLED_SCLK_Set();
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OLED_SCLK_Clr();
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}
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}
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/**********************************************
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// IIC Write Command
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**********************************************/
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void Write_IIC_Command(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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IIC_Wait_Ack();
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Write_IIC_Byte(0x00); //write command
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IIC_Wait_Ack();
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Write_IIC_Byte(IIC_Command);
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IIC_Wait_Ack();
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IIC_Stop();
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}
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/**********************************************
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// IIC Write Data
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**********************************************/
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void Write_IIC_Data(unsigned char IIC_Data)
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{
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IIC_Start();
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Write_IIC_Byte(0x78); //D/C#=0; R/W#=0
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IIC_Wait_Ack();
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Write_IIC_Byte(0x40); //write data
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IIC_Wait_Ack();
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Write_IIC_Byte(IIC_Data);
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IIC_Wait_Ack();
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IIC_Stop();
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}
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void OLED_WR_Byte(unsigned dat,unsigned cmd)
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{
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if(cmd)
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{
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Write_IIC_Data(dat);
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}
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else {
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Write_IIC_Command(dat);
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}
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}
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/********************************************
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// fill_Picture
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********************************************/
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void fill_picture(unsigned char fill_Data)
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{
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unsigned char m,n;
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for(m=0;m<8;m++)
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{
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OLED_WR_Byte(0xb0+m,0); //page0-page1
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OLED_WR_Byte(0x02,0); //low column start address
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OLED_WR_Byte(0x10,0); //high column start address
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for(n=0;n<128;n++)
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{
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OLED_WR_Byte(fill_Data,1);
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}
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}
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}
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/***********************Delay****************************************/
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void Delay_50ms(unsigned int Del_50ms)
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{
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unsigned int m;
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for(;Del_50ms>0;Del_50ms--)
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for(m=6245;m>0;m--);
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}
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void Delay_1ms(unsigned int Del_1ms)
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{
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unsigned char j;
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while(Del_1ms--)
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{
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for(j=0;j<123;j++);
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}
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}
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//坐标设置
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void OLED_Set_Pos(unsigned char x, unsigned char y)
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{
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OLED_WR_Byte(0xb0+y,OLED_CMD);
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OLED_WR_Byte((((x+2)&0xf0)>>4)|0x10,OLED_CMD);
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OLED_WR_Byte(((x+2)&0x0f),OLED_CMD);
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}
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//开启OLED显示
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void OLED_Display_On(void)
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{
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OLED_WR_Byte(0X8D,OLED_CMD); //SET DCDC命令
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OLED_WR_Byte(0X14,OLED_CMD); //DCDC ON
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OLED_WR_Byte(0XAF,OLED_CMD); //DISPLAY ON
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}
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//关闭OLED显示
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void OLED_Display_Off(void)
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{
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OLED_WR_Byte(0X8D,OLED_CMD); //SET DCDC命令
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OLED_WR_Byte(0X10,OLED_CMD); //DCDC OFF
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OLED_WR_Byte(0XAE,OLED_CMD); //DISPLAY OFF
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}
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//清屏函数,清完屏,整个屏幕是黑色的!和没点亮一样!!!
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void OLED_Clear(void)
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{
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u8 i,n;
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for(i=0;i<8;i++)
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{
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OLED_WR_Byte (0xb0+i,OLED_CMD); //设置页地址（0~7）
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OLED_WR_Byte (0x02,OLED_CMD); //设置显示位置—列低地址
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OLED_WR_Byte (0x10,OLED_CMD); //设置显示位置—列高地址
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for(n=0;n<128;n++)OLED_WR_Byte(0,OLED_DATA);
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} //更新显示
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}
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void OLED_On(void)
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{
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u8 i,n;
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for(i=0;i<8;i++)
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{
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OLED_WR_Byte (0xb0+i,OLED_CMD); //设置页地址（0~7）
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OLED_WR_Byte (0x02,OLED_CMD); //设置显示位置—列低地址
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OLED_WR_Byte (0x10,OLED_CMD); //设置显示位置—列高地址
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for(n=0;n<128;n++)OLED_WR_Byte(1,OLED_DATA);
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} //更新显示
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}
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//在指定位置显示一个字符,包括部分字符
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//x:0~127
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//y:0~63
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//mode:0,反白显示;1,正常显示
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//size:选择字体 16/12
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void OLED_ShowChar(u8 x,u8 y,u8 chr,u8 Char_Size)
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{
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unsigned char c=0,i=0;
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c=chr-' ';//得到偏移后的值
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if(x>Max_Column-1){x=0;y=y+2;}
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if(Char_Size ==16)
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{
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OLED_Set_Pos(x,y);
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for(i=0;i<8;i++)
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OLED_WR_Byte(F8X16[c*16+i],OLED_DATA);
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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_WR_Byte(F8X16[c*16+i+8],OLED_DATA);
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}
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else {
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OLED_Set_Pos(x,y);
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for(i=0;i<6;i++)
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OLED_WR_Byte(F6x8[c][i],OLED_DATA);
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}
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}
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//m^n函数
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u32 oled_pow(u8 m,u8 n)
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{
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u32 result=1;
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while(n--)result*=m;
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return result;
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}
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//显示2个数字
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//x,y :起点坐标
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//len :数字的位数
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//size:字体大小
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//mode:模式 0,填充模式;1,叠加模式
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//num:数值(0~4294967295);
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void OLED_ShowNum(u8 x,u8 y,u32 num,u8 len,u8 size2)
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{
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u8 t,temp;
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u8 enshow=0;
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for(t=0;t<len;t++)
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{
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temp=(num/oled_pow(10,len-t-1))%10;
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if(enshow==0&&t<(len-1))
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{
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if(temp==0)
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{
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OLED_ShowChar(x+(size2/2)*t,y,' ',size2);
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continue;
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}else enshow=1;
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}
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OLED_ShowChar(x+(size2/2)*t,y,temp+'0',size2);
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}
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}
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//显示一个字符号串
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void OLED_ShowString(u8 x,u8 y,u8 *chr,u8 Char_Size)
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{
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unsigned char j=0;
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while (chr[j]!='\0')
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{ OLED_ShowChar(x,y,chr[j],Char_Size);
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x+=8;
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if(x>120){x=0;y+=2;}
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j++;
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}
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}
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//显示汉字
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void OLED_ShowCHinese(u8 x,u8 y,u8 no)
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{
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u8 t,adder=0;
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OLED_Set_Pos(x,y);
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for(t=0;t<16;t++)
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{
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OLED_WR_Byte(Hzk[2*no][t],OLED_DATA);
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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(t=0;t<16;t++)
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{
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OLED_WR_Byte(Hzk[2*no+1][t],OLED_DATA);
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adder+=1;
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}
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}
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/***********功能描述：显示显示BMP图片128×64起始点坐标(x,y),x的范围0～127，y为页的范围0～7*****************/
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void OLED_DrawBMP(unsigned char x0, unsigned char y0,unsigned char x1, unsigned char y1,unsigned char BMP[])
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{
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unsigned int j=0;
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unsigned char x,y;
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if(y1%8==0) y=y1/8;
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else y=y1/8+1;
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for(y=y0;y<y1;y++)
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{
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OLED_Set_Pos(x0,y);
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for(x=x0;x<x1;x++)
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{
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OLED_WR_Byte(BMP[j++],OLED_DATA);
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}
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}
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}
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//初始化SSD1306
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void OLED_Init(void)
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{
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OLED_WR_Byte(0xAE,OLED_CMD);//--display off
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OLED_WR_Byte(0x02,OLED_CMD);//---set low column address
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OLED_WR_Byte(0x10,OLED_CMD);//---set high column address
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OLED_WR_Byte(0x40,OLED_CMD);//--set start line address
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OLED_WR_Byte(0xB0,OLED_CMD);//--set page address
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OLED_WR_Byte(0x81,OLED_CMD); // contract control
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OLED_WR_Byte(0xFF,OLED_CMD);//--128
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OLED_WR_Byte(0xA1,OLED_CMD);//set segment remap
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OLED_WR_Byte(0xA6,OLED_CMD);//--normal / reverse
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OLED_WR_Byte(0xA8,OLED_CMD);//--set multiplex ratio(1 to 64)
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OLED_WR_Byte(0x3F,OLED_CMD);//--1/32 duty
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OLED_WR_Byte(0xC8,OLED_CMD);//Com scan direction
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OLED_WR_Byte(0xD3,OLED_CMD);//-set display offset
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OLED_WR_Byte(0x00,OLED_CMD);//
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OLED_WR_Byte(0xD5,OLED_CMD);//set osc division
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OLED_WR_Byte(0x80,OLED_CMD);//
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OLED_WR_Byte(0xD8,OLED_CMD);//set area color mode off
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OLED_WR_Byte(0x05,OLED_CMD);//
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OLED_WR_Byte(0xD9,OLED_CMD);//Set Pre-Charge Period
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OLED_WR_Byte(0xF1,OLED_CMD);//
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OLED_WR_Byte(0xDA,OLED_CMD);//set com pin configuartion
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OLED_WR_Byte(0x12,OLED_CMD);//
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OLED_WR_Byte(0xDB,OLED_CMD);//set Vcomh
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OLED_WR_Byte(0x30,OLED_CMD);//
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OLED_WR_Byte(0x8D,OLED_CMD);//set charge pump enable
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OLED_WR_Byte(0x14,OLED_CMD);//
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OLED_WR_Byte(0xAF,OLED_CMD);//--turn on oled panel
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}
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