View Full Version : Code cho pic 16f877a-quét 8 Led đơn
kenvinlam
13-05-2011, 11:02 AM
Em mới học về pic. Bác nào biết code quét 8 led đơn chạy đuổi nhau dùng MPLAB cho em xin được không! Em nghiên cứu hoài ma không ra.
kqha1025
14-05-2011, 03:47 PM
Em mới học về pic. Bác nào biết code quét 8 led đơn chạy đuổi nhau dùng MPLAB cho em xin được không! Em nghiên cứu hoài ma không ra.
Cái này đơn giản, mình nghĩ bạn nên tự làm như sau:
Bạn đọc file định nghĩa chân cẳng cho em pic mà bạn định dùng, sau đó bạn xem 1 ví dụ trong phần exsample của phần mềm ấy xem cấu trúc 1 chương trình như thế nào. Sau đó bạn tự code 1 ví dụ là chạy, đảm bảo bạn biết được nhiều thứ hơn đấy.
Chúc bạn thành công.
thanhute
15-05-2011, 06:22 PM
bạn nên viết code rồi mô phỏng trên protues để thấy rõ ràng hơn, mới đầu học nên những bài như ded đơn bạn nên học thật kỹ để hiểu sâu về lập trình cho PIC sau đó bạn đi lên những ứng dụng cao hơn sẽ rất dễ dàng. Mình gửi cho bạn code theo yêu cầu của bạn, bạn hãy tham khảo nhé. Chúc bạn thành công.
Link dowload: http://www.mediafire.com/?vmd00u1k3a1s010
kenvinlam
21-05-2011, 12:42 AM
Cam on cac anh nha! Nhung hinh nhu doan code tren co mot chut sai sot. Anh thanhute xem lai thu di
222222222
31-10-2011, 02:32 PM
Em mới học về pic. Bác nào biết code quét 8 led đơn chạy đuổi nhau dùng MPLAB cho em xin được không! Em nghiên cứu hoài ma không ra.
PROCESSOR P16F877A
INCLUDE <P16F877A.INC>
_CONFIG H'3F10'
ORG 0X0000
GOTO START
START BSF STATUS,5
CLRF TRISB
BCF STATUS,5
CLRF PORTB
LOOP MOVLW B'00000001'
MOVWF PORTB
CALL DELAY2
MOVLW B'00000010'
MOVWF PORTB
CALL DELAY2
MOVLW B'00000100'
MOVWF PORTB
CALL DELAY2
MOVLW B'00001000'
MOVWF PORTB
CALL DELAY2
MOVLW B'00010000'
MOVWF PORTB
CALL DELAY2
MOVLW B'00100000'
MOVWF PORTB
CALL DELAY2
MOVLW B'01000000'
MOVWF PORTB
CALL DELAY2
MOVLW B'10000000'
MOVWF PORTB
CALL DELAY2
GOTO LOOP
DELAY1 MOVLW .166
MOVLW 20H
LOOP1 DECFSZ 20H
GOTO LOOP1
RETURN
DELAY2 MOVLW .40
MOVWF 21H
LOOP2 CALL DELAY1
DECFSZ 21H
GOTO LOOP2
RETURN
END
ngoài ra bạn có thể dùng kĩ thuật bảng
hcmut.khoamaisi
03-11-2011, 11:49 AM
PROCESSOR P16F877A
INCLUDE <P16F877A.INC>
_CONFIG H'3F10'
ORG 0X0000
GOTO START
START BSF STATUS,5
CLRF TRISB
BCF STATUS,5
CLRF PORTB
LOOP MOVLW B'00000001'
MOVWF PORTB
CALL DELAY2
MOVLW B'00000010'
MOVWF PORTB
CALL DELAY2
MOVLW B'00000100'
MOVWF PORTB
CALL DELAY2
MOVLW B'00001000'
MOVWF PORTB
CALL DELAY2
MOVLW B'00010000'
MOVWF PORTB
CALL DELAY2
MOVLW B'00100000'
MOVWF PORTB
CALL DELAY2
MOVLW B'01000000'
MOVWF PORTB
CALL DELAY2
MOVLW B'10000000'
MOVWF PORTB
CALL DELAY2
GOTO LOOP
DELAY1 MOVLW .166
MOVLW 20H
LOOP1 DECFSZ 20H
GOTO LOOP1
RETURN
DELAY2 MOVLW .40
MOVWF 21H
LOOP2 CALL DELAY1
DECFSZ 21H
GOTO LOOP2
RETURN
END
ngoài ra bạn có thể dùng kĩ thuật bảng
Bạn có sơ đồ mach lun không :D
ladykiller
21-11-2011, 01:04 AM
chạy led đơn ở portb tích cực mức thấp tổng hợp 10 kiểu chạy, bạn có thể tham khảo
PROCESSOR 16F877A
#INCLUDE<P16F877A.INC>
DEM1 EQU 20H
DEM2 EQU 21H
__CONFIG _CP_OFF & _WDT_OFF & _BODEN_OFF & _PWRTE_ON & _XT_OSC & _WRT_OFF & _LVP_OFF & _CPD_OFF
ORG 0000H
BCF STATUS,6
BSF STATUS,5
CLRF TRISB
BCF STATUS,5
CLRF PORTB
MAIN
CHAY0
MOVLW B'01111111'
MOVWF PORTB
CALL DELAY
MOVLW B'10111111'
MOVWF PORTB
CALL DELAY
MOVLW B'11011111'
MOVWF PORTB
CALL DELAY
MOVLW B'11101111'
MOVWF PORTB
CALL DELAY
MOVLW B'11110111'
MOVWF PORTB
CALL DELAY
MOVLW B'11111011'
MOVWF PORTB
CALL DELAY
MOVLW B'11111101'
MOVWF PORTB
CALL DELAY
MOVLW B'11111101'
MOVWF PORTB
CALL DELAY
MOVLW B'11111110'
MOVWF PORTB
CALL DELAY
MOVLW B'11111101'
MOVWF PORTB
CALL DELAY
MOVLW B'11111011'
MOVWF PORTB
CALL DELAY
MOVLW B'11110111'
MOVWF PORTB
CALL DELAY
MOVLW B'11101111'
MOVWF PORTB
CALL DELAY
MOVLW B'11011111'
MOVWF PORTB
CALL DELAY
MOVLW B'10111111'
MOVWF PORTB
CALL DELAY
MOVLW B'01111111'
MOVWF PORTB
CALL DELAY
MOVLW B'10111111'
MOVWF PORTB
CALL DELAY
MOVLW B'11011111'
MOVWF PORTB
CALL DELAY
MOVLW B'11101111'
MOVWF PORTB
CALL DELAY
MOVLW B'11110111'
MOVWF PORTB
CALL DELAY
MOVLW B'11111011'
MOVWF PORTB
CALL DELAY
MOVLW B'11111101'
MOVWF PORTB
CALL DELAY
MOVLW B'11111101'
MOVWF PORTB
CALL DELAY
MOVLW B'11111110'
MOVWF PORTB
CALL DELAY
MOVLW B'11111101'
MOVWF PORTB
CALL DELAY
MOVLW B'11111011'
MOVWF PORTB
CALL DELAY
MOVLW B'11110111'
MOVWF PORTB
CALL DELAY
MOVLW B'11101111'
MOVWF PORTB
CALL DELAY
MOVLW B'11011111'
MOVWF PORTB
CALL DELAY
MOVLW B'10111111'
MOVWF PORTB
CALL DELAY
CHAY1
MOVLW B'00000000'
MOVWF PORTB
CALL DELAY
MOVLW B'10000000'
MOVWF PORTB
CALL DELAY
MOVLW B'11000000'
MOVWF PORTB
CALL DELAY
MOVLW B'11100000'
MOVWF PORTB
CALL DELAY
MOVLW B'11110000'
MOVWF PORTB
CALL DELAY
MOVLW B'11111000'
MOVWF PORTB
CALL DELAY
MOVLW B'11111100'
MOVWF PORTB
CALL DELAY
MOVLW B'11111110'
MOVWF PORTB
CALL DELAY
MOVLW B'11111111'
MOVWF PORTB
CALL DELAY
MOVLW B'11111110'
MOVWF PORTB
CALL DELAY
MOVLW B'11111100'
MOVWF PORTB
CALL DELAY
MOVLW B'11111000'
MOVWF PORTB
CALL DELAY
MOVLW B'11110000'
MOVWF PORTB
CALL DELAY
MOVLW B'11100000'
MOVWF PORTB
CALL DELAY
MOVLW B'11000000'
MOVWF PORTB
CALL DELAY
MOVLW B'10000000'
MOVWF PORTB
CALL DELAY
MOVLW B'00000000'
MOVWF PORTB
CALL DELAY
MOVLW B'10000000'
MOVWF PORTB
CALL DELAY
MOVLW B'11000000'
MOVWF PORTB
CALL DELAY
MOVLW B'11100000'
MOVWF PORTB
CALL DELAY
MOVLW B'11110000'
MOVWF PORTB
CALL DELAY
MOVLW B'11111000'
MOVWF PORTB
CALL DELAY
MOVLW B'11111100'
MOVWF PORTB
CALL DELAY
MOVLW B'11111110'
MOVWF PORTB
CALL DELAY
MOVLW B'11111111'
MOVWF PORTB
CALL DELAY
MOVLW B'11111110'
MOVWF PORTB
CALL DELAY
MOVLW B'11111100'
MOVWF PORTB
CALL DELAY
MOVLW B'11111000'
MOVWF PORTB
CALL DELAY
MOVLW B'11110000'
MOVWF PORTB
CALL DELAY
MOVLW B'11100000'
MOVWF PORTB
CALL DELAY
MOVLW B'11000000'
MOVWF PORTB
CALL DELAY
MOVLW B'10000000'
MOVWF PORTB
CALL DELAY
MOVLW B'00000000'
MOVWF PORTB
CALL DELAY
MOVLW B'00000001'
MOVWF PORTB
CALL DELAY
MOVLW B'00000011'
MOVWF PORTB
CALL DELAY
MOVLW B'00000111'
MOVWF PORTB
CALL DELAY
MOVLW B'00001111'
MOVWF PORTB
CALL DELAY
MOVLW B'00011111'
MOVWF PORTB
CALL DELAY
MOVLW B'00111111'
MOVWF PORTB
CALL DELAY
MOVLW B'01111111'
MOVWF PORTB
CALL DELAY
MOVLW B'11111111'
MOVWF PORTB
CALL DELAY
MOVLW B'01111111'
MOVWF PORTB
CALL DELAY
MOVLW B'00111111'
MOVWF PORTB
CALL DELAY
MOVLW B'00011111'
MOVWF PORTB
CALL DELAY
MOVLW B'00001111'
MOVWF PORTB
CALL DELAY
MOVLW B'00000111'
MOVWF PORTB
CALL DELAY
MOVLW B'00000011'
MOVWF PORTB
CALL DELAY
MOVLW B'00000001'
MOVWF PORTB
CALL DELAY
MOVLW B'00000000'
MOVWF PORTB
CALL DELAY
MOVLW B'00000001'
MOVWF PORTB
CALL DELAY
MOVLW B'00000011'
MOVWF PORTB
CALL DELAY
MOVLW B'00000111'
MOVWF PORTB
CALL DELAY
MOVLW B'00001111'
MOVWF PORTB
CALL DELAY
MOVLW B'00011111'
MOVWF PORTB
CALL DELAY
MOVLW B'00111111'
MOVWF PORTB
CALL DELAY
MOVLW B'01111111'
MOVWF PORTB
CALL DELAY
MOVLW B'11111111'
MOVWF PORTB
CALL DELAY
MOVLW B'01111111'
MOVWF PORTB
CALL DELAY
MOVLW B'00111111'
MOVWF PORTB
CALL DELAY
MOVLW B'00011111'
MOVWF PORTB
CALL DELAY
MOVLW B'00001111'
MOVWF PORTB
CALL DELAY
MOVLW B'00000111'
MOVWF PORTB
CALL DELAY
MOVLW B'00000011'
MOVWF PORTB
CALL DELAY
MOVLW B'00000001'
MOVWF PORTB
CALL DELAY
MOVLW B'00000000'
MOVWF PORTB
CALL DELAY
CHAY2
MOVLW B'10101010'
MOVWF PORTB
CALL DELAY
MOVLW B'01010101'
MOVWF PORTB
CALL DELAY
MOVLW B'10101010'
MOVWF PORTB
CALL DELAY
MOVLW B'01010101'
MOVWF PORTB
CALL DELAY
MOVLW B'10101010'
MOVWF PORTB
CALL DELAY
MOVLW B'01010101'
MOVWF PORTB
CALL DELAY
MOVLW B'10101010'
MOVWF PORTB
CALL DELAY
MOVLW B'01010101'
MOVWF PORTB
CALL DELAY
CHAY3
MOVLW B'11111111'
MOVWF PORTB
CALL DELAY
CALL DELAY
MOVLW B'00000000'
MOVWF PORTB
CALL DELAY
CALL DELAY
MOVLW B'11111111'
MOVWF PORTB
CALL DELAY
CALL DELAY
MOVLW B'00000000'
MOVWF PORTB
CALL DELAY
CALL DELAY
MOVLW B'11111111'
MOVWF PORTB
CALL DELAY
CALL DELAY
MOVLW B'00000000'
MOVWF PORTB
CALL DELAY
CALL DELAY
MOVLW B'11111111'
MOVWF PORTB
CALL DELAY
CALL DELAY
CHAY4
MOVLW B'10000000'
MOVWF PORTB
CALL DELAY
MOVLW B'01000000'
MOVWF PORTB
CALL DELAY
MOVLW B'00100000'
MOVWF PORTB
CALL DELAY
MOVLW B'00010000'
MOVWF PORTB
CALL DELAY
MOVLW B'00001000'
MOVWF PORTB
CALL DELAY
MOVLW B'00000100'
MOVWF PORTB
CALL DELAY
MOVLW B'00000010'
MOVWF PORTB
CALL DELAY
MOVLW B'00000001'
MOVWF PORTB
CALL DELAY
MOVLW B'00000010'
MOVWF PORTB
CALL DELAY
MOVLW B'00000100'
MOVWF PORTB
CALL DELAY
MOVLW B'00001000'
MOVWF PORTB
CALL DELAY
MOVLW B'00010000'
MOVWF PORTB
CALL DELAY
MOVLW B'00100000'
MOVWF PORTB
CALL DELAY
MOVLW B'01000000'
MOVWF PORTB
CALL DELAY
MOVLW B'10000000'
MOVWF PORTB
CALL DELAY
CHAY5
MOVLW B'11111111'
MOVWF PORTB
CALL DELAY
CALL DELAY
MOVLW B'11100111'
MOVWF PORTB
CALL DELAY
MOVLW B'11000011'
MOVWF PORTB
CALL DELAY
MOVLW B'10000001'
MOVWF PORTB
CALL DELAY
MOVLW B'00000000'
MOVWF PORTB
CALL DELAY
MOVLW B'10000001'
MOVWF PORTB
CALL DELAY
MOVLW B'11000011'
MOVWF PORTB
CALL DELAY
MOVLW B'11100111'
MOVWF PORTB
CALL DELAY
MOVLW B'11111111'
MOVWF PORTB
CALL DELAY
CALL DELAY
CHAY6
MOVLW B'01111110'
MOVWF PORTB
CALL DELAY
MOVLW B'00111100'
MOVWF PORTB
CALL DELAY
MOVLW B'00011000'
MOVWF PORTB
CALL DELAY
MOVLW B'00000000'
MOVWF PORTB
CALL DELAY
MOVLW B'00011000'
MOVWF PORTB
CALL DELAY
MOVLW B'00111100'
MOVWF PORTB
CALL DELAY
MOVLW B'01111110'
MOVWF PORTB
CALL DELAY
MOVLW B'11111111'
MOVWF PORTB
CALL DELAY
CALL DELAY
CHAY7
MOVLW B'00111111'
MOVWF PORTB
CALL DELAY
MOVLW B'10011111'
MOVWF PORTB
CALL DELAY
MOVLW B'11001111'
MOVWF PORTB
CALL DELAY
MOVLW B'11100111'
MOVWF PORTB
CALL DELAY
MOVLW B'11110011'
MOVWF PORTB
CALL DELAY
MOVLW B'11111001'
MOVWF PORTB
CALL DELAY
MOVLW B'11111100'
MOVWF PORTB
CALL DELAY
MOVLW B'11111001'
MOVWF PORTB
CALL DELAY
MOVLW B'11110011'
MOVWF PORTB
CALL DELAY
MOVLW B'11100111'
MOVWF PORTB
CALL DELAY
MOVLW B'11001111'
MOVWF PORTB
CALL DELAY
MOVLW B'10011111'
MOVWF PORTB
CALL DELAY
MOVLW B'00111111'
MOVWF PORTB
CALL DELAY
MOVLW B'11111111'
MOVWF PORTB
CALL DELAY
CHAY8
MOVLW B'01111111'
MOVWF PORTB
CALL DELAY
MOVLW B'10111111'
MOVWF PORTB
CALL DELAY
MOVLW B'11011111'
MOVWF PORTB
CALL DELAY
MOVLW B'11101111'
MOVWF PORTB
CALL DELAY
MOVLW B'11110111'
MOVWF PORTB
CALL DELAY
MOVLW B'11111011'
MOVWF PORTB
CALL DELAY
MOVLW B'11111101'
MOVWF PORTB
CALL DELAY
MOVLW B'11111101'
MOVWF PORTB
CALL DELAY
MOVLW B'11111110'
MOVWF PORTB
CALL DELAY
MOVLW B'01111110'
MOVWF PORTB
CALL DELAY
MOVLW B'10111110'
MOVWF PORTB
CALL DELAY
MOVLW B'11011110'
MOVWF PORTB
CALL DELAY
MOVLW B'11101110'
MOVWF PORTB
CALL DELAY
MOVLW B'11110110'
MOVWF PORTB
CALL DELAY
MOVLW B'11111010'
MOVWF PORTB
CALL DELAY
MOVLW B'11111100'
MOVWF PORTB
CALL DELAY
MOVLW B'01111100'
MOVWF PORTB
CALL DELAY
MOVLW B'10111100'
MOVWF PORTB
CALL DELAY
MOVLW B'11011100'
MOVWF PORTB
CALL DELAY
MOVLW B'11101100'
MOVWF PORTB
CALL DELAY
MOVLW B'11110100'
MOVWF PORTB
CALL DELAY
MOVLW B'11111000'
MOVWF PORTB
CALL DELAY
MOVLW B'01111000'
MOVWF PORTB
CALL DELAY
MOVLW B'10111000'
MOVWF PORTB
CALL DELAY
MOVLW B'11011000'
MOVWF PORTB
CALL DELAY
MOVLW B'11101000'
MOVWF PORTB
CALL DELAY
MOVLW B'11110000'
MOVWF PORTB
CALL DELAY
MOVLW B'01110000'
MOVWF PORTB
CALL DELAY
MOVLW B'10110000'
MOVWF PORTB
CALL DELAY
MOVLW B'11010000'
MOVWF PORTB
CALL DELAY
MOVLW B'11100000'
MOVWF PORTB
CALL DELAY
MOVLW B'01100000'
MOVWF PORTB
CALL DELAY
MOVLW B'10100000'
MOVWF PORTB
CALL DELAY
MOVLW B'11000000'
MOVWF PORTB
CALL DELAY
MOVLW B'01000000'
MOVWF PORTB
CALL DELAY
MOVLW B'10000000'
MOVWF PORTB
CALL DELAY
MOVLW B'00000000'
MOVWF PORTB
CALL DELAY
CHAY9
MOVLW B'11111111'
MOVWF PORTB
CALL DELAY
CALL DELAY
MOVLW B'00000000'
MOVWF PORTB
CALL DELAY
CALL DELAY
MOVLW B'11111111'
MOVWF PORTB
CALL DELAY
CALL DELAY
MOVLW B'00000000'
MOVWF PORTB
CALL DELAY
CALL DELAY
MOVLW B'11111111'
MOVWF PORTB
CALL DELAY
CALL DELAY
MOVLW B'00000000'
MOVWF PORTB
CALL DELAY
CALL DELAY
MOVLW B'11111111'
MOVWF PORTB
CALL DELAY
CALL DELAY
GOTO MAIN
DELAY
MOVLW D'200'
MOVWF DEM1
LOOP
DECFSZ DEM1
GOTO LOOP1
GOTO THOAT
LOOP1
MOVLW D'250'
MOVWF DEM2
LOOP3
DECFSZ DEM2
GOTO LOOP3
GOTO LOOP
THOAT
NOP
RETURN
RETURN
END
ladykiller
21-11-2011, 01:08 AM
eo ui post xong mới thấy chương trình mình dài quá @@ bạn thích sử dụng kiểu chạy nào thì cắt 1 đoạn đó thôi là được :)
chúc thành công
DunLop
29-02-2012, 02:20 PM
bạn ơi, có thuật toán nào gọn hơn ko...kiểu này thì đơn giản, nhưng ông thầy mình kêu thi ko cho làm kiểu này, mình nghĩ mãi ko ra..
ví dụ như là cho 1 con led chạy từ 1 đến 8 rồi sáng tám
chạy tiếp từ đense 7 rồi sáng 7....cứ chạy đến khi sáng led thứ 1 rồi ngược lại.
nhưng ko dùng thuật toán chỉ mov như của bạn nhé..:D
bạn giúp mình với...thanks
ladykiller
11-03-2012, 11:16 PM
he he gọn hơn thì dùng bảng ( hay mảng) ak, tại tưởng bạn mới tiếp cận nên dùng cái cơ bản :))
thongdtvtk7a
12-03-2012, 12:48 AM
#include <16F877A.h>
void main()
{
int k,i,p,t;
Set_tris_b(0);
while(1){
//sang ,tat
{ output_b(0x00); delay_ms(300);
output_b(0xFF); delay_ms(300);
}
//chay tu trai qua phai
for(k=0x01;k<0x100;k<<=1)
{output_b(k); delay_ms(300);}
//chay tu phai qua trai
for(k=0x80;k>0;k>>=1){output_b(k); delay_ms(300);}
//chay tu giua ra ngoai
for(p=0x08,t=0x10;p>0;p>>=1){output_b(p|t);delay_ms(300); t<<=1; }
//chay tu giua vao trong
for(p=0x80,t=0x01;p>0;p>>=1){output_b(p|t);delay_ms(300); t<<=1; }
//chay sang dan tu phai qua trai va nguoc lai
k=0x00;
for(i=0x01;i<0x100;i<<=1){k=k+i; {output_b(k);delay_ms(300); }}
for(i=0x80;i>0;i<<=1);{k=k-i; {output_b(k);delay_ms(300);}}
}
}
ladykiller
13-03-2012, 03:52 PM
#include <16F877A.h>
void main()
{
int k,i,p,t;
Set_tris_b(0);
while(1){
//sang ,tat
{ output_b(0x00); delay_ms(300);
output_b(0xFF); delay_ms(300);
}
//chay tu trai qua phai
for(k=0x01;k<0x100;k<<=1)
{output_b(k); delay_ms(300);}
//chay tu phai qua trai
for(k=0x80;k>0;k>>=1){output_b(k); delay_ms(300);}
//chay tu giua ra ngoai
for(p=0x08,t=0x10;p>0;p>>=1){output_b(p|t);delay_ms(300); t<<=1; }
//chay tu giua vao trong
for(p=0x80,t=0x01;p>0;p>>=1){output_b(p|t);delay_ms(300); t<<=1; }
//chay sang dan tu phai qua trai va nguoc lai
k=0x00;
for(i=0x01;i<0x100;i<<=1){k=k+i; {output_b(k);delay_ms(300); }}
for(i=0x80;i>0;i<<=1);{k=k-i; {output_b(k);delay_ms(300);}}
}
}
ở đây là MPASM dùng C thì bạn sang bên kia :))
lazy115
15-11-2012, 08:09 PM
có thể dùng code ngắn hơn bằng lệnh RCF hay RRF
youaremylife
16-11-2012, 03:01 AM
Dùng các hàm logic dịch quay vòng là xong thôi vừa gọn đẹp vừa tiết kiệm bộ nhớ
hoangminhac
18-12-2012, 04:40 PM
mô phỏng bằng proteus như thế nào các bác nhỉ? muốn nạp cho con PIC16F877A hình như phải tạo đc 1 file .hex nhưng mình ko biết tạo bằng cách nào. mong các bác giúp cho nhé. thanks :X
toan_320.vn
22-09-2013, 10:21 AM
có thể dùng code ngắn hơn bằng lệnh RCF hay RRF
bác có thể nói rõ hơn được không, cho một ví dụ xem răng bác, tks bác nhìu!!!!
phankieu32k0515
22-09-2013, 01:10 PM
#include <16F877A.h>
void main()
{
int k,i,p,t;
Set_tris_b(0);
while(1){
//sang ,tat
{ output_b(0x00); delay_ms(300);
output_b(0xFF); delay_ms(300);
}
//chay tu trai qua phai
for(k=0x01;k<0x100;k<<=1)
{output_b(k); delay_ms(300);}
//chay tu phai qua trai
for(k=0x80;k>0;k>>=1){output_b(k); delay_ms(300);}
//chay tu giua ra ngoai
for(p=0x08,t=0x10;p>0;p>>=1){output_b(p|t);delay_ms(300); t<<=1; }
//chay tu giua vao trong
for(p=0x80,t=0x01;p>0;p>>=1){output_b(p|t);delay_ms(300); t<<=1; }
//chay sang dan tu phai qua trai va nguoc lai
k=0x00;
for(i=0x01;i<0x100;i<<=1){k=k+i; {output_b(k);delay_ms(300); }}
for(i=0x80;i>0;i<<=1);{k=k-i; {output_b(k);delay_ms(300);}}
}
}
có ccs không sư huynh
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