data_log.asm

此源代码用于电力电子逆变器的同步锁相实现

;====================================================================================
; File Name:	Data_log.asm
; Module Name: 	DATA_LOG					      
;
; Initialization Routine: DATA_LOG_INIT
;
; Description:	Stores the realtime values of two user selectable s/w 
;		variables in the external data RAM provided on the 24x/24xx
;		EVM. Two s/w variables are selected by configuring two 
;		module inputs, dlog_iptr1 and dlog_iptr2, point to the 
;		address of the two variables. The starting addresses of the 
;		two RAM locations, where the data values are stored, are set 
;		to 8000h and 8400h. Each section allows logging of 400 data 
;		values.
;
;				|~~~~~~~~~~~~~~~~~~~~~~~|	  
;	dlog_iptr1	o------>|		  	|
;   	dlog_iptr2    	o------>|    DATA_LOG/ Data RAM |
;   	 		o------>|		     	|
;				|_______________________|	   
;
;
; Target dependency:	C2xx core only
;
;===========================================================================
;Module definitions for external reference.
		.def		DATA_LOG, DATA_LOG_INIT		;function call
		.def		input1,input2,input3,input4
;		.def        dlog_iptr2, dlog_iptr3,	dlog_iptr4		;Inputs
;===========================================================================
		.include	x24x_app.h

address1		.usect "table1",1000
address2		.usect "table2",1000
address3		.usect "table3",1000
;address4		.usect "table4",1000 
start_adr	.usect "data_log",1
length  	.usect "data_log",1
counter 	.usect "data_log",1
input1  	.usect "data_log",1
input2  	.usect "data_log",1
input3  	.usect "data_log",1 
input4  	.usect "data_log",1 
gezhi		.usect "data_log",1      ;ge duo shao ge dian 
									 ;chuan yi ci shu 
;-----------------------------------------------------------------------------
DATA_LOG_INIT:
;-----------------------------------------------------------------------------
		LDP		#length
		SPLK	#0,input1 
		SPLK	#0,input2
		SPLK	#0,input3
		SPLK	#0,input4
		SPLK	#0,counter
		SPLK	#1000,length
		SPLK	#11110,start_adr 
		SPLK	#0,gezhi
		LAR		AR3,#address1
		LAR		AR4,#address2
		LAR		AR5,#address3
	;	LAR		AR6,#address4
		
		
		RET

;---------------------------------------------------------------------------------
DATA_LOG:
;---------------------------------------------------------------------------------
		LDP		#gezhi
		LACC	gezhi
		ADD		#1
		SACL	gezhi
		SUB		#0 ;ge duo shao ge zhi lai cun shu 
		BCND	P1, LT  
		NOP
		SPLK	#0,gezhi
		LDP		#counter
		LACC	counter
		ADD		#1
		SACL	counter
		SUB		start_adr
		BCND	P1,LT
		NOP
		NOP
		SUB		length
		BCND	P2,GEQ
		MAR		*,AR3
	    LACC	input1
	    SACL	*+
	    NOP
	    NOP
		MAR		*,AR4
	    LACC	input2
	    SACL	*+ 
	    NOP
	    NOP
		MAR		*,AR5
	    LACC	input3
	    SACL	*+  
	    NOP
	    NOP
	;	MAR		*,AR6
	 ;   LACC	input4
	 ;   SACL	*+
		B		P1
P2		NOP
		NOP
		SUB		length
		BCND	P1,LT
		LACC	counter
		SUB		length
		SACL	counter
P1		NOP
		
		
		RET