adv7179_reset.c

BF561采集PAL制图像

#include "main.h"

/********************************************************************************/
/***** Reset_ADV7179()														*****/
/***** Resets the Video encoder through PF14								*****/
/********************************************************************************/


// specific defines for this module. Not used anywhere else
#define ADV7171_RESET_bit 14   				// ADV7179 /reset = PF14

#define ADV7171_Reset_Delay   0x0000ffff    	// For reset pulse length
#define ADV7171_IDENT_W	0x54

void Reset_ADV7171(void )
{ long delay_time;

	// configure RESET flag as output
	*pFIO0_DIR |= (1 << ADV7171_RESET_bit);
	ssync();

	// generate reset pulse
	*pFIO0_FLAG_C = (1 << ADV7171_RESET_bit);	// clear bit to reset ADV7179 
	ssync();

	for (delay_time = 0; delay_time < ADV7171_Reset_Delay; delay_time++)
			asm("nop;");
	*pFIO0_FLAG_S = (1 << ADV7171_RESET_bit);	// set bit to re-enable ADV7179 
	ssync();

	for (delay_time = 0; delay_time < ADV7171_Reset_Delay; delay_time++)
			asm("nop;");

	}
bool Init_ADV7171(bool ISPAL)
{
	    if (!I2C_Init(0x54)) return false;
	    if (!I2C_Write7170(0x05, 0x00)) return false; 
	    if (!I2C_Write7170(0x10, 0x01)) return false; // Mode Register 1
		if (!I2C_Write7170(0x00, 0x02)) return false; // Mode Register 2
		if (!I2C_Write7170(0x00, 0x03)) return false; // Mode Register 3
		if (!I2C_Write7170(0x00, 0x04)) return false; // Mode Register 4
		if (!I2C_Write7170(0x00, 0x07)) return false; // Timing Register 0
		if (!I2C_Write7170(0x00, 0x08)) return false; //有修改 Timing Register 1
		if (!I2C_Write7170(0xCB, 0x09)) return false; // Subcarrier Frequency Register 0
		if (!I2C_Write7170(0x8A, 0x0A)) return false; // Subcarrier Frequency Register 1
		if (!I2C_Write7170(0x09, 0x0B)) return false; // Subcarrier Frequency Register 2
		if (!I2C_Write7170(0x2A, 0x0C)) return false; // Subcarrier Frequency Register 3
		if (!I2C_Write7170(0x00, 0x0D)) return false; // Subcarrier Phase Register
		if (!I2C_Write7170(0x00, 0x0E)) return false; // Closed Captioning Ext Register 0
		if (!I2C_Write7170(0x00, 0x0F)) return false; // Closed Captioning Ext Register 1
		if (!I2C_Write7170(0x00, 0x10)) return false; // Closed Captioning Register 0
		if (!I2C_Write7170(0x00, 0x11)) return false; // Closed Captioning Register 1
		if (!I2C_Write7170(0x00, 0x12)) return false; // Pedestal Control Register 0
	    if (!I2C_Write7170(0x00, 0x13)) return false; // Pedestal Control Register 1
		if (!I2C_Write7170(0x00, 0x14)) return false; // Pedestal Control Register 2
		if (!I2C_Write7170(0x00, 0x15)) return false; // Pedestal Control Register 3
		if (!I2C_Write7170(0x00, 0x16)) return false; // CGMS_WSS Reg 0
		if (!I2C_Write7170(0x00, 0x17)) return false; // CGMS_WSS Reg 1
		if (!I2C_Write7170(0x00, 0x18)) return false; // CGMS_WSS Reg 2
		if (!I2C_Write7170(0x00, 0x19)) return false; // Teletext Request Control Register

		
		if (!I2C_Write7170(0x00, 0x0f)) return false; // Closed Captioning Register 0
		if (!I2C_Write7170(0x00, 0x11)) return false; // Closed Captioning Register 1
		if (!I2C_Write7170(0x00, 0x12)) return false; // Pedestal Control Register 0
	    if (!I2C_Write7170(0x00, 0x13)) return false; // Pedestal Control Register 1
		if (!I2C_Write7170(0x00, 0x14)) return false; // Pedestal Control Register 2
		if (!I2C_Write7170(0x00, 0x15)) return false; // Pedestal Control Register 3
		if (!I2C_Write7170(0x00, 0x16)) return false; // CGMS_WSS Reg 0
		if (!I2C_Write7170(0x00, 0x17)) return false; // CGMS_WSS Reg 1
		if (!I2C_Write7170(0x00, 0x18)) return false; // CGMS_WSS Reg 2
		if (!I2C_Write7170(0x00, 0x19)) return false;
		return true;
	
		}