ov9640.c

ssd192X_LPC2210_V2.0 LPC2210的16位数据口控制SSD1926

#include "ssd192X.h"
#include "i2c.h"
#include "ov9640.h"

#if (OV9640_MODE==OV9640_QVGA)
int CAM_WIDTH=320;
int CAM_HEIGHT=240;
#else
int CAM_WIDTH=1280;
int CAM_HEIGHT=960;
#endif

int CAM_FRAME_RATE=30;

void cam_hw_init(void)
{
	I2C i2c;

	SSD_REGWB(REG_VCLK_CONFIG_0,0x00);  // Cam running rate
	SSD_REGWB(REG_VCLK_CONFIG_1,0x07);

	// Reset HV7131
	
	SSD_REGWB(REG_DV_ENB,0x00);	// ENB_DV = 1)= RESET_DV = 1
	SSD_REGWB(REG_DV_ENB,0x01);	// ENB_DV = 1)= RESET_DV = 0
	SSD_REGWB(REG_DV_ENB,0x00);	// ENB_DV = 1)= RESET_DV = 1

	i2c.deviceID=I2C_DEVICE_ID;
	i2c.bitRate=1;
  	ssd192X_i2c_init(&i2c);

	//Mode
	ssd192X_i2c_writeb(&i2c, 0x12, OV9640_MODE);
	
	//Set YUV format
//	ssd192X_i2c_writeb(&i2c, 0x3a, 0x08);

}

void cam_hw_still(void)
{
#if 0
	I2C i2c;
	
	i2c.deviceID=I2C_DEVICE_ID;
	i2c.bitRate=1;
	ssd192X_i2c_init(&i2c);

	ssd192X_i2c_writew(&i2c, 0x0e, CAM_WIDTH);
	ssd192X_i2c_writew(&i2c, 0x0c, CAM_HEIGHT);

	//set window start position and size
	ssd192X_i2c_writew(&i2c, 0x08, 240);
	ssd192X_i2c_writew(&i2c, 0x0a, 180);
#endif

	// bt656 / field stuff select
	SSD_REGWB(REG_DV_TV_0,0x12);
	SSD_REGWB(REG_DV_TV_1,0x00);
	SSD_REGWB(REG_DV_TV_2,0x04);
	
	SSD_REGWW(REG_DV_NFRAME_POS_0, 0x0002);
	SSD_REGWW(REG_DV_HORI_PERIOD_0, CAM_WIDTH);
	SSD_REGWB(REG_DV_FRAME_PULSE_WIDTH, 0x08);
}