main.c

STM32+ov7670

#include <stm32f10x_lib.h>
#include "sys.h"
#include "delay.h"	
#include "led.h" 
#include "lcd.h"	   

# include "LCD_GUI.h"
# include "LCD_Driver.h"

# include "usart.h"
# include "MyUSART.h"

# include "ov7670.h"
# include "FIFO.h"

//Mini STM32开发板范例代码10
//TFTLCD显示 实验
extern unsigned char VsyncCnt;			//场同步标志							

int main(void)
{		

	u32 i = 0;
	u16 j = 0;
	u16 temp = 0;
	u16 data = 0;
	
	u16 buffer[240] = {0};
	
	u16 t = 0;
	Stm32_Clock_Init(9);//系统时钟设置
	delay_init(72);		//延时初始化
	uart_init(72, 38400);
	//LED_Init();
	
	//Config2401();
	//SetRxMode();
	
	
	//LCD_Clear(1234) ;	
	//LCD_LED_ON;	
	
	//OV7670_init();	
	
	FIFO_PortInit();
	FIFO_WRST_L;						//写指针复位,开始往FIFO写入数据		
	Delay_nUS(100);
	FIFO_WRST_H;
	
	FIFO_RRST_L;						//写指针复位,开始往FIFO写入数据		
	Delay_nUS(100);
	FIFO_RRST_H;
	
	LCD_DriverInit();
	LCD_Clear(1234) ;
	
	EXTIX_Init();	
	while(1)
	{
		if(OV7670_init())
		{
			break;
		}
	}
	
	while(0)
	{
		LCD_Fill(0, 0, 25, 80, 0x1234);
		for(i = 0; i < 100; i ++)
		{
			LCD_DrawPoint(i, i, 0x5678);
		}
	}	
	FIFO_OE_L;
	while(1)
	{
		if(1)//
		{	
			if(VsyncCnt == 2)
			{
											//0地址读数据,硬件已将OE和RE连在一起
				LCD_SetWindow(0, 0, X_END, Y_END);
				LCD_WriteGRAM_EN();
				
				t = 0;
				for(i = 0; i < 240; i ++)	//QVGA格式,240行;每行320个点		
				{
					for(j = 0; j < 320; j ++)
					{
						FIFO_RCLK_L;
						__nop();
						__nop();
						FIFO_RCLK_H;
						__nop();
						__nop();
						data = FIFO_DATA_PIN;
						data <<= 8;			//先读高位							

						FIFO_RCLK_L;
						__nop();
						__nop();
						FIFO_RCLK_H;
						__nop();
						__nop();
						//Delay_nUS(1);
						temp = FIFO_DATA_PIN;//再读低位							
						
						data |= temp ;
						
						LCD_DATA_OUT(data);	//显示读到的数据(RGB565)			
					}
				}
				LCD_WR_END();
				
				FIFO_RRST_L;				//读指针复位						
				
				FIFO_RCLK_L;				//至少需要一个时钟周期的跳变才能复位
				FIFO_RCLK_H;
				FIFO_RCLK_L;				//至少需要一个时钟周期的跳变才能复位
				FIFO_RCLK_H;
				
				FIFO_RRST_H;
				
				FIFO_WEN_L;					//按照手册上说明,复位时WEN要置高,但 
				FIFO_WRST_L;				//MCU的WEN和HREF是做与非逻辑后再输入								
				__nop();					//到AL422B的,所以MCU的WEN置低则输出到422的WEN一定为低
				__nop();					//写指针复位需要一定的延时			
				FIFO_WRST_H;
				VsyncCnt = 0;				//开始下一帧数据采集				
			}
		}
	}  
}