?? delay.s
字號:
.module delay.c
.area text(rom, con, rel)
.dbfile E:\新建文件夾\conter_icc\cfile\delay.c
.dbfunc e delay_1us _delay_1us fV
.even
_delay_1us::
.dbline -1
.dbline 5
; #define DELAY_C
; #include "includes.h"
; #define XTAL 4 //晶振頻率,單位MHz
; void delay_1us(void) //1us延時函數
; {
.dbline 6
; asm("nop");
nop
.dbline -2
L1:
.dbline 0 ; func end
ret
.dbend
.dbfunc e delay_nus _delay_nus fV
; i -> R20,R21
; n -> R10,R11
.even
_delay_nus::
xcall push_xgset300C
movw R10,R16
.dbline -1
.dbline 10
; }
;
; void delay_nus(unsigned int n) //N us延時函數
; {
.dbline 11
; unsigned int i=0;
.dbline 12
; for (i=0;i<n;i++)
clr R20
clr R21
xjmp L6
L3:
.dbline 13
; delay_1us();
xcall _delay_1us
L4:
.dbline 12
subi R20,255 ; offset = 1
sbci R21,255
L6:
.dbline 12
cp R20,R10
cpc R21,R11
brlo L3
X0:
.dbline -2
L2:
.dbline 0 ; func end
xjmp pop_xgset300C
.dbsym r i 20 i
.dbsym r n 10 i
.dbend
.dbfunc e delay_1ms _delay_1ms fV
; i -> R16,R17
.even
_delay_1ms::
.dbline -1
.dbline 17
; }
;
; void delay_1ms(void) //1ms延時函數
; {
.dbline 19
; unsigned int i;
; for (i=0;i<(unsigned int)(XTAL*143-2);i++);
clr R16
clr R17
xjmp L11
L8:
.dbline 19
L9:
.dbline 19
subi R16,255 ; offset = 1
sbci R17,255
L11:
.dbline 19
ldi R24,570
ldi R25,2
cp R16,R24
cpc R17,R25
brlo L8
X1:
.dbline -2
L7:
.dbline 0 ; func end
ret
.dbsym r i 16 i
.dbend
.dbfunc e delay_nms _delay_nms fV
; i -> R20,R21
; n -> R10,R11
.even
_delay_nms::
xcall push_xgset300C
movw R10,R16
.dbline -1
.dbline 23
; }
;
; void delay_nms(unsigned int n) //N ms延時函數
; {
.dbline 24
; unsigned int i=0;
.dbline 25
; for (i=0;i<n;i++)
clr R20
clr R21
xjmp L16
L13:
.dbline 26
; {
.dbline 27
; delay_1ms();
xcall _delay_1ms
.dbline 28
; }
L14:
.dbline 25
subi R20,255 ; offset = 1
sbci R21,255
L16:
.dbline 25
cp R20,R10
cpc R21,R11
brlo L13
X2:
.dbline -2
L12:
.dbline 0 ; func end
xjmp pop_xgset300C
.dbsym r i 20 i
.dbsym r n 10 i
.dbend
; }
;
;
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -