//================================================================================================
void UTL012dac( int a, int b, int c, int d , int sw) // D/A OUTPUT
//================================================================================================
{
int i;

	if( sw ){

		RS_write_hex16( a );	RS_print( "," );
		RS_write_hex16( b );	RS_print( "," );
		RS_write_hex16( c );	RS_print( "," );
		RS_write_hex16( d );
		RS_print( "\n" );
	}

	p1_0 = 0; // FDACLK  
	p1_6 = 0; // FDACS    /* Port P16 bit */

	
	for( i = 0; i< 16/*bit*/; i++){
		p0_7 = ((a & 0x8000) ? 1 : 0);	// CH1
		a = a<<1;
		p0_2 = ((b & 0x8000) ? 1 : 0);	// CH2
		b = b<<1;				
		p1_1 = ((c & 0x8000) ? 1 : 0);	// CH3
		c = c<<1;				
		p1_3 = ((d & 0x8000) ? 1 : 0);	// CH4
		d = d<<1;	
					
		p1_0 = 1; p1_0 = 0; // FDACLK  

	}
	p1_6 = 1; // FDACS    /* Port P16 bit */

	
}