main.s

周立功 214x pack 配套光盘

;/****************************************Copyright (c)**************************************************
;**                               Guangzou ZLG-MCU Development Co.,LTD.
;**                                      graduate school
;**                                 http://www.zlgmcu.com
;**
;**--------------File Info-------------------------------------------------------------------------------
;** File name:			main.s
;** Last modified Date:  2004-09-16
;** Last Version:		1.0
;** Descriptions:		The main() function example template
;**
;**------------------------------------------------------------------------------------------------------
;** Created by:			Chenmingji
;** Created date:		2004-09-16
;** Version:				1.0
;** Descriptions:		The original version
;**
;**------------------------------------------------------------------------------------------------------
;** Modified by:
;** Modified date:
;** Version:
;** Descriptions:
;**
;********************************************************************************************************/
		    INCLUDE		LPC214x.INC			; Include the head file 引入头文件
		    
;声明MAIN函数
;Export MAIN functon
    EXPORT  MAIN                            ;MAIN Function主程序
    AREA    example,CODE,READONLY
    ENTRY
    CODE32
    
MAIN
	LDR		R0, =0xE01FC1A0    		;/* 寄存器地址－使能快速端口 */
	MOV		R1, #0x01
	STR		R1, [R0]           		;/* 使能快速端口0 	*/
	LDR		R1, =0xFFFFFFFF
	LDR		R0, =0x3FFFC000     	;/* 快速端口0的方向 	*/
	STR		R1, [R0]
	LDR		R0, =0xE0028018     	;/* 慢速端口1的方向 	*/
	STR		R1, [R0]		
	LDR		R0, =0x3FFFC018      	;/* FIO0SET - 快速端口0寄存器 	*/
	LDR		R1, =0x3FFFC01C      	;/* FIO0CLR - 快速端口0寄存器 	*/
	LDR		R2, =0xC0010000     	;/* 选择快速端口0.16用于触发 	*/
	LDR		R3, =0xE0028014     	;/* IO1SET - 慢速端口1寄存器 	*/
	LDR		R4, =0xE002801C     	;/* IO1CLR - 慢速端口1寄存器 	*/
	LDR		R5, =0x00100000      	;/* 选择慢速端口1.20用于触发 	*/
LOOP
	;/*在快速端口上生成2个脉冲*/
	STR		R2,[R0]
	STR		R2,[R1]
	STR		R2,[R0]
	STR		R2,[R1]

	;/*在慢速端口上生成2个脉冲*/
	STR		R5,[R3]
	STR		R5,[R4]
	STR		R5,[R3]
	STR		R5,[R4]
;LOOP
	B  		LOOP
		
	END