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/**
---------------------------------------------------------------------
**
** This device driver was created by
** 8-Bit Single-Chip Microcontrollers
**
** Copyright(C) visionox display Corporation 2002 - 2009
** All rights reserved by Kunshan visionox display Corporation.
**
** This program should be used on your own responsibility.
**
** Filename : SSD1305_Init.c
** Abstract : This file implements device driver for Initial SSD1306 IC function.
**
** Device : STC89LE516RD
**
** Compiler : KEIL uVision2
**
** Module
**
** Dot Matrix: 128*64
**
** Display Color:
**
** Driver IC:
**
** Edit :
**
** Creation date:
---------------------------------------------------------------------
**/
//
//
/****************************包含頭文件***************************/
#include "reg52.h"
#include "intrins.h"
#include "IC.h"
#include "Delay.h"
#define Slave_Address 0x78 //0X3C 部分IIC主控會自動左移一位地址
#define OP_Data 0x40
#define OP_Command 0x00
//
//
#define Interface_IIC //定義通信方式接口8080、IIC、SPI
//
//
void Clear_Screen();
#ifdef Interface_8080
/**********************************************
//
//寫命令函數
**********************************************/
//
//
void Write_Command(uchar command)
{
CS=low;
DC=low;
WR=low;
_nop_();_nop_();
P0=command;
WR=high;
_nop_();_nop_();
CS=high;
}
//
//
//
/**********************************************
//
//寫數據函數
//
**********************************************/
//
//
void Write_Data(uchar date)
{
CS=low;
DC=high;
WR=low;
_nop_();_nop_();
P0=date;
WR=high;
_nop_();_nop_();
CS=high;
}
#endif
#ifdef Interface_IIC
/**********************************************
//
//IIC通信開始函數
//
**********************************************/
void IC_IIC_Start()
{
SDA = high;
SCL = high;
_nop_();
SDA = low;
_nop_();_nop_();
SCL = low;
}
/**********************************************
//
//IIC通信停止函數
//
**********************************************/
void IC_IIC_Stop()
{
SDA = low;
_nop_();
SCL = high;
_nop_();_nop_();
SDA = high;
}
/**********************************************
//
//向IIC寫數據函數
//返回值為acknowledgement位信號
//
**********************************************/
bit Write_IIC_Data(uchar Data)
{
unsigned char i;
bit Ack_Bit; //應答信號
for(i = 0; i < 8; i++)
{
SDA = (bit)(Data & 0x80);
_nop_();
SCL = high;
_nop_();_nop_();
SCL = low;
Data = _crol_(Data,1);
}
SDA = high; //釋放IIC SDA總線為主器件接收從器件產生應答信號
_nop_();_nop_();
SCL = high; //第9個時鐘周期
_nop_();_nop_();
Ack_Bit = SDA; //讀取應答信號
SCL = low;
return Ack_Bit;
}
/**********************************************
//
//寫命令函數
**********************************************/
//
//
void Write_Command(uchar command)
{
IC_IIC_Start();
Write_IIC_Data(Slave_Address); //Salve Adress
Write_IIC_Data(OP_Command); //寫命令
Write_IIC_Data(command);
IC_IIC_Stop();
}
/**********************************************
//
//寫數據函數
//
**********************************************/
//
//
void Write_Data(uchar date)
{
IC_IIC_Start();
Write_IIC_Data(Slave_Address); //Salve Adress
Write_IIC_Data(OP_Data); //寫數據
Write_IIC_Data(date);
IC_IIC_Stop();
}
#endif
#ifdef Interface_SPI
/**********************************************
//
//寫命令函數
**********************************************/
//
//
void Write_Command(uchar command)
{
uchar i,value;
value = command;
CS = low;
DC = low;
for(i=0;i<8;i++)
{
SCL = low;
_nop_(); _nop_();
if(value & 0x80) SI = high;
else SI = low;
SCL = high;
_nop_(); _nop_();
value = _crol_(value, 1);
}
CS = high;
}
//
//
/**********************************************
//
//寫命令函數
**********************************************/
//
//
void Write_Data(uchar date)
{
uchar i,value;
value = date;
CS = low;
DC = high;
for(i=0;i<8;i++)
{
SCL = low;
_nop_(); _nop_();
if(value & 0x80) SI = high;
else SI = low;
SCL = high;
_nop_(); _nop_();
value = _crol_(value, 1);
}
CS = high;
}
#endif
/******************************************************
//
//復位IC函數
//
******************************************************/
//
//
void Reset_IC()
{
Delay_Ms(10);
RES = low;
Delay_Ms(50);
RES = high;
Delay_Ms(100);
}
/******************************************************
//
//初始化IC函數
//
******************************************************/
void init_ic()
{
Write_Command(0xAE); //Set Display Off
Write_Command(0xD5); //Display divide ratio/osc. freq. mode
Write_Command(0x80); //
Write_Command(0xA8); //Multiplex ration mode:63
Write_Command(0x3F);
Write_Command(0xD3); //Set Display Offset
Write_Command(0x00);
Write_Command(0x40); //Set Display Start Line
Write_Command(0xAD); //DC-DC Control Mode Set
Write_Command(0x8B); //8A:External 8b:Built-in DC-DC is used
Write_Command(0x32); //Set Pump voltage value
Write_Command(0xA1); //Segment Remap
Write_Command(0xC8); //Set COM Output Scan Direction
Write_Command(0xDA); //Common pads hardware: alternative
Write_Command(0x12);
Write_Command(0x81); //Contrast control
Write_Command(0x40);
Write_Command(0xD9); //Set pre-charge period
Write_Command(0x1F);
Write_Command(0xDB); //VCOM deselect level mode
Write_Command(0x40);
Write_Command(0xA4); //Set Entire Display On/Off
Write_Command(0xA6); //Set Normal Display
Clear_Screen();
Write_Command(0xAF); //Set Display On
}
}
}
}
void Clear_Screen()
{
uchar page_number,column_number;
for(page_number=0;page_number<8;page_number++)
{
Write_Command(0xb0+page_number);
Write_Command(0x10);
Write_Command(0x02);
for(column_number=0;column_number<128;column_number++)
{
Write_Data(0x00);
}
}
}
void All_Screen()
{
uchar page_number,column_number;
for(page_number=0;page_number<8;page_number++)
{
Write_Command(0xb0+page_number);
Write_Command(0x10);
Write_Command(0x02);
for(column_number=0;column_number<128;column_number++)
{
Write_Data(0xFF);
}
}
}
void main()
{
Reset_IC();
init_ic();
All_Screen();
}

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