eeprom.s

来自「433M收发,内有PCB(用99打开),源程序ICC打开,用了IC发送和三极管两」· S 代码 · 共 88 行

	.module eeprom.c
	.area text(rom, con, rel)
	.dbfile E:\abol\file\EMD\programme\EM-PB-2129\eeprom.c
	.dbfunc e EEPROM_write _EEPROM_write fV
;         ucdata -> R18
;      uiaddress -> R16
	.even
_EEPROM_write::
	.dbline -1
	.dbline 15
; 
; /* 文件名称：main.c  主函数								*/
; /* 编译：ICC-AVR application builder					*/
; 
; 
; 
; #include <iot13v.h>
; #include <macros.h>
; #include "eeprom.h"
; 
; 
; 
; /*		EEPROM 写入	*/	
; void EEPROM_write(unsigned char uiaddress,unsigned char ucdata)
; {
	.dbline 16
;  WDR();
	wdr
L2:
	.dbline 17
L3:
	.dbline 17
;  while(EECR&(1<<EEWE)); /*等待上一次写操作结束*/
	sbic 0x1c,1
	rjmp L2
	.dbline 18
;  EEAR=uiaddress; /*设置地址寄存器*/
	out 0x1e,R16
	.dbline 19
;  EEDR=ucdata;
	out 0x1d,R18
	.dbline 20
;  EECR|=(1<<EEMWE);
	sbi 0x1c,2
	.dbline 21
;  EECR|=(1<<EEWE); /*置位EEMWE 置位EEWE以启动写操作*/
	sbi 0x1c,1
	.dbline -2
L1:
	.dbline 0 ; func end
	ret
	.dbsym r ucdata 18 c
	.dbsym r uiaddress 16 c
	.dbend
	.dbfunc e EEPROM_read _EEPROM_read fc
;      uiaddress -> R16
	.even
_EEPROM_read::
	.dbline -1
	.dbline 26
; }
; 
; /*      EEPROM 读取     */
; unsigned char EEPROM_read(unsigned char uiaddress)
; {
L6:
	.dbline 27
L7:
	.dbline 27
;    while(EECR&(1<<EEWE));  /*等待上一次写操作结束*/
	sbic 0x1c,1
	rjmp L6
	.dbline 28
;    EEAR=uiaddress;    /*设置地址寄存器*/
	out 0x1e,R16
	.dbline 29
; 	EECR|=(1<<EERE);	/*置位EEMWE 置位EEWE以启动读操作*/ 
	sbi 0x1c,0
	.dbline 30
; 	return EEDR;	/*自数据存贮器返回数据*/
	in R16,0x1d
	.dbline -2
L5:
	.dbline 0 ; func end
	ret
	.dbsym r uiaddress 16 c
	.dbend