📄 c8051f330_camera.c
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/*******************************************************************************
* Copyright (C) 2010 - All Rights Reserved
*
* 软件作者: 骑飞家族
* 版权所有: 骑飞电子
* 创建日期: 2010年6月10日
* 软件历史: 2010年11月2日修改
* Version: 1.0
* Demo 淘宝地址：http://store.taobao.com/shop/view_shop.htm?asker=wangwang&shop_nick=qifeidianzi
**********************************************************************************************************************************************
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**********************************************************************************************************************************************/
#include <c8051f330.h>
#include <english_16x8.h>
///////////////////////////////////////////////////////
#define BLACK 0x0000
#define BLUE 0x001F
#define RED 0xF800
#define GREEN 0x07E0
#define CYAN 0x07FF
#define MAGENTA 0xF81F
#define YELLOW 0xFFE0
#define WHITE 0xFFFF
#define AM 011
#define TIME 100
#define SDA_IN() {P0MDOUT= 0X00;}
#define SDA_OUT() {P0MDOUT= 0XFF;}
//iic example transplant
#define SYSCLK 24500000
#define SMB_FREQUENCY 50000
#define WRITE 0x00
#define READ 0x01
#define EEPROM_ADDR 0x42
#define SMB_MTSTA 0xE0
#define SMB_MTDB 0xC0
#define SMB_MRDB 0x80
unsigned char* pSMB_DATA_IN;
unsigned char SMB_SINGLEBYTE_OUT;
unsigned char* pSMB_DATA_OUT;
unsigned char SMB_DATA_LEN;
unsigned char WORD_ADDR;
unsigned char TARGET;
bit SMB_BUSY=0;
bit SMB_RW;
bit SMB_SENDWORDADDR;
bit SMB_RANDOMREAD;
bit SMB_ACKPOLL;
unsigned char FAIL = 0;
unsigned long NUM_ERRORS;
sfr16 TMR3RL = 0x92;
sfr16 TMR3 = 0x94;
sbit Tft_RS_PIN=P0^6;
sbit Tft_WR_PIN=P0^7;
sbit Tft_RST_PIN=P0^4;
sbit I2C_SDA=P0^0;
sbit I2C_SCL=P0^1;
sbit Cmos_VSYNC=P0^5;
sbit Cmos_CS_PIN=P0^2;
sbit WR_CONTROL_PIN=P0^3;
void Ext_Interrupt_Init (void);
void Tft_Init(void);
void TftClear(unsigned int Color);
void Tft_WR_DATA16(unsigned int inputdata);
void TftWrite16(unsigned int index);
void TftWrite(unsigned int index,unsigned int inputdata);
void TftWR_Str(unsigned int x,unsigned int y,unsigned char *s,unsigned int color,unsigned int xcolor);
void TftWR_SingleStr(unsigned char inputdata,unsigned int color,unsigned int xcolor);
void Tft_SetBackground(unsigned int StartX,unsigned int StartY,unsigned int LongX,unsigned int LongY);
void Tft_SetCursor(unsigned int Xpos, unsigned int Ypos);
unsigned char WrCmos7670(unsigned char RegAddress, unsigned char RegData);
unsigned char RdCmos7670Reg(unsigned char RegAddress, unsigned char *RegData);
void Cmos7670_Size(unsigned int Startx,unsigned int Starty,unsigned int width,unsigned int height);
void my_delay_ms(unsigned int time);
unsigned char Cmos7670_init(void);
void Set_Cmos7670Reg(void);
void delay_us(unsigned int time);
void delay_ms(unsigned int time);
void delay( unsigned long cnt);
///////////////////////////////////////////
void InitI2C(void);
void SMBus_Init (void);
void OSCILLATOR_Init (void);
void Port_Init(void);
void Timer1_Init (void);
void Timer3_Init (void);
void SMBus_ISR (void);
void Timer3_ISR (void);
void SMB_Write (void);
void SMB_Read (void);
void main(void)
{
PCA0MD &= ~0x40;
OSCILLATOR_Init();
Port_Init();
Timer1_Init ();
Timer3_Init ();
SMBus_Init ();
WR_CONTROL_PIN=1;
Tft_Init( );
TftClear(BLACK);
TftWR_Str(60,70,"C8051F330 Camera",RED,BLACK);
TftWR_Str(60,100,"QI FEI DIAN ZI VER1.0",RED,BLACK);
TftWR_Str(60,130,"OV7670 Initializing......",RED,BLACK);
delay_ms(3000);
EIE1 |= 0x01;
EA = 1;
while(1!=Cmos7670_init());
delay_ms(3000);
TftClear(BLACK);
TftWR_Str(60,110,"OV7670 Init SUCCESS! ",RED,BLACK);
delay_ms(5000);
TftClear(BLACK);
Ext_Interrupt_Init( );
EA = 1;
while(1);
}
void SMBus_Init (void)
{
SMB0CF = 0x5D;
SMB0CF |= 0x80;
}
void Timer1_Init (void)
{
#if ((SYSCLK/SMB_FREQUENCY/3) < 255)
#define SCALE 1
CKCON |= 0x08;
#elif ((SYSCLK/SMB_FREQUENCY/4/3) < 255)
#define SCALE 4
CKCON |= 0x01;
CKCON &= ~0x0A;
#endif
TMOD = 0x20;
TH1 = -(SYSCLK/SMB_FREQUENCY/SCALE/3);
TL1 = TH1;
TR1 = 1;
}
void Timer3_Init (void)
{
TMR3CN = 0x00;
CKCON &= ~0x40;
TMR3RL = -(SYSCLK/12/40);
TMR3 = TMR3RL;
EIE1 |= 0x80;
TMR3CN |= 0x04;
}
void OSCILLATOR_Init (void)
{
OSCICN = 0x83;
RSTSRC = 0x04;
}
void SMB_Write (void)
{
while (SMB_BUSY);
SMB_BUSY = 1;
SMB_RW = 0;
STA = 1;
}
void SMB_Read (void)
{
while (SMB_BUSY);
SMB_BUSY = 1;
SMB_RW = 1;
STA = 1;
while (SMB_BUSY);
}
void Port_Init(void)
{
P0MDIN = 0xFF;
P1MDIN = 0XFF;
P0MDOUT= 0XFC;
P1MDOUT= 0XFF;
P0SKIP = 0X00;
P1SKIP = 0X00;
XBR0 = 0x04;
XBR1 = 0x40;
P0 = 0xFF;
}
void Ext_Interrupt_Init (void)
{
IT01CF = 0x0d;
IT0=1;
IE = 0x01;
}
void INT0_ISR (void) interrupt 0
{
EA=0;
IE0=0;
P0MDOUT= 0xff;
WR_CONTROL_PIN=1;
Cmos_CS_PIN=1;
TftWrite(0x0020,0x0000);
TftWrite(0x0021,0x013f);
TftWrite(0x0050,0x00);
TftWrite(0x0051,239);
TftWrite(0x0052,0x00);
TftWrite(0x0053,319);
TftWrite(0x0003,0x1018);
TftWrite16(0x0022);
Tft_RS_PIN=1;
Tft_WR_PIN=0;
WR_CONTROL_PIN=0;
Cmos_CS_PIN=0;
EA=1;
}
void SMBus_ISR (void) interrupt 7
{
static char i;
static bit SEND_START = 0;
switch (SMB0CN & 0xF0)
{
case SMB_MTSTA:
SMB0DAT = TARGET;
SMB0DAT &= 0xFE;
SMB0DAT |= SMB_RW;
STA = 0;
i = 0;
break;
case SMB_MTDB:
if (ACK)
{
if (SEND_START)
{
STA = 1;
SEND_START = 0;
break;
}
if(SMB_SENDWORDADDR)
{
SMB_SENDWORDADDR = 0;
SMB0DAT = WORD_ADDR;
if (SMB_RANDOMREAD)
{
SEND_START = 1;
SMB_RW = READ;
}
break;
}
if (SMB_RW==WRITE)
{
if (i < SMB_DATA_LEN)
{
SMB0DAT = *pSMB_DATA_OUT;
pSMB_DATA_OUT++;
i++;
}
else
{
STO = 1;
SMB_BUSY = 0;
}
}
else {}
}
else
{
if(SMB_ACKPOLL)
{
STA = 1;
}
else
{
FAIL = 1;
}
}
break;
case SMB_MRDB:
if ( i < SMB_DATA_LEN )
{
*pSMB_DATA_IN = SMB0DAT;
pSMB_DATA_IN++;
i++;
ACK = 1;
}
if (i == SMB_DATA_LEN)
{
SMB_BUSY = 0;
ACK = 0;
STO = 1;
}
break;
default:
FAIL = 1;
break;
}
if (FAIL)
{
SMB0CF &= ~0x80;
SMB0CF |= 0x80;
STA = 0;
STO = 0;
ACK = 0;
SMB_BUSY = 0;
//FAIL = 0;
}
SI = 0;
}
void Timer3_ISR (void) interrupt 14
{
SMB0CF &= ~0x80;
SMB0CF |= 0x80;
TMR3CN &= ~0x80;
STA = 0;
SMB_BUSY = 0;
}
void Tft_Init(void)
{
Tft_RST_PIN=1;
delay_ms(10);
Tft_RST_PIN=0;
delay_ms(10);
Tft_RST_PIN=1;
delay_ms(150);
TftWrite(0x00e5, 0x8000);
TftWrite(0x0000, 0x0001);
TftWrite(0x0001, 0x0100);
TftWrite(0x0002, 0x0700);
#if AM==000
TftWrite(0x0003,0x1000);
#elif AM==001
TftWrite(0x0003,0x1008);
#elif AM==010
TftWrite(0x0003,0x1010);
#elif AM==011
TftWrite(0x0003,0x1018);
#elif AM==100
TftWrite(0x0003,0x1020);
#elif AM==101
TftWrite(0x0003,0x1028);
#elif AM==110
TftWrite(0x0003,0x1030);
#elif AM==111
TftWrite(0x0003,0x1038);
#endif
TftWrite(0x0004, 0x0000);
TftWrite(0x0008, 0x0202);
TftWrite(0x0009, 0x0000);
TftWrite(0x000A, 0x0000);
TftWrite(0x000C, 0x0000);
TftWrite(0x000D, 0x0000);
TftWrite(0x000F, 0x0000);
TftWrite(0x0010, 0x0000);
TftWrite(0x0011, 0x0007);
TftWrite(0x0012, 0x0000);
TftWrite(0x0013, 0x0000);
delay_ms(1000);
TftWrite(0x0010, 0x17B0);
TftWrite(0x0011, 0x0007);
delay_ms(1000);
TftWrite(0x0012, 0x013A);
delay_ms(1000);
TftWrite(0x0013, 0x1A00);
TftWrite(0x0029, 0x000c);
delay_ms(1000);
TftWrite(0x0030, 0x0000);
TftWrite(0x0031, 0x0505);
TftWrite(0x0032, 0x0004);
TftWrite(0x0035, 0x0006);
TftWrite(0x0036, 0x0707);
TftWrite(0x0037, 0x0105);
TftWrite(0x0038, 0x0002);
TftWrite(0x0039, 0x0707);
TftWrite(0x003C, 0x0704);
TftWrite(0x003D, 0x0807);
TftWrite(0x0050, 0x0000);
TftWrite(0x0051, 0x00EF);
TftWrite(0x0052, 0x0000);
TftWrite(0x0053, 0x013F);
TftWrite(0x0060, 0x2700);
TftWrite(0x0061, 0x0001);
TftWrite(0x006A, 0x0000);
#if AM==000
TftWrite(0x0020,0x00ef);
TftWrite(0x0021,0x013f);
#elif AM==001
TftWrite(0x0020,0x00ef);
TftWrite(0x0021,0x013f);
#elif AM==010
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