dc.asm

此源代码用于电力电子逆变器的同步锁相实现

			.def   DC_INIT
			.def   DC_MAIN 
			.def   DC_ref
			.def   DC_zhi
			
DC_ref		.usect "dc",1
DC_sf		.usect "dc",1
DC_jishu	.usect "dc",1
DC_pian		.usect "dc",1
DC_fin		.usect "dc",1
DC_zhi		.usect "dc",1


DC_INIT:
		LDP		#DC_ref
		SPLK	#3700,DC_ref
		SPLK	#1,DC_sf
		SPLK	#0,DC_jishu
		SPLK	#50,DC_pian
		SPLK	#1100,DC_fin
		RET
		
DC_MAIN: 
		SETC	SXM
		LDP		#DC_ref
		LACC	DC_sf
		BCND	DC_P1,EQ
		NOP
		LACC	DC_zhi
		SUB		DC_ref  
		ABS
		SUB		DC_pian
		BCND	DC_P1,GEQ
		LACC	DC_jishu
		ADD		#1
		SACL	DC_jishu
		SUB		#1000 
		BCND	DC_P1,LT
		SPLK	#0,DC_jishu
		LACC	DC_ref
		SUB		#100
		SACL	DC_ref
		SUB		DC_fin
		BCND	DC_P1,GEQ
		NOP
		SPLK	#0,DC_sf
		NOP
DC_P1	NOP
		NOP
		RET