# Led traffic light Simulation

Source: Internet
Author: User

Is my circuit diagram

Below are four programs I write with two different languages and two different latencies, but I don't know what time to ask during simulation (I haven't solved it yet)

A loop assembly delay

Code:
1. Org 0100 h; reserved space
2. Main:
3. Loop: mov P0, # 0xf3h;
4. Acall dtime
5. MoV r0, #5; What are the functions of these statements? Make things yellow, North and South Red
6. Loop1:
7. MoV P0, # 0f5h
8. Acall dtime1
9. MoV P0, # 0f7h
10. Acall dtime1
11. Djnz r0, loop1
12. MoV P0, # 0deh; North-South green light, East-West red light
13. Acall dtime
14. MoV r0, #5
15. Loop2: mov P0, # 0eeh; flashing yellow light in north and south, east/west red light
16. Acall dtime1
17. MoV P0, # 0feh
18. Acall dtime1
19. Djnz r0, loop2
20. JMP Loop
21. Dtime:; latency
22. MoV R5, #60
23. X: mov R7, #200.
24. Del1: mov R6, #248.
25. NOP
26. Del2: djnz R6, del2
27. Djnz R7, del1
28. Djnz R5, X
29. RET;
30. Dtime1: mov R5, #5
31. X1: mov R7, #200; latency
32. Del3: mov R6, #248.
33. NOP
34. Del4: djnz R6, del4
35. Djnz R7, del3
36. Djnz R5, X1
37. RET;
38. End

Two types: interruption implementation delay Compilation

Code:
1. Org 0100 h; reserved space
2. Start:
3. Loop: mov P0, # 11110011b; what is the role of the two statements? Let the lights of the east place shine on the north and south
4. Acall dtime
5. MoV r0, #5; What are the functions of these statements? Make things yellow, North and South Red
6. Loop1:
7. MoV P0, # 0f5h
8. Acall dtime1
9. MoV P0, # 0f7h
10. Acall dtime1
11. Djnz r0, loop1
12. MoV P0, # 0deh; North-South green light, East-West red light
13. Acall dtime
14. MoV r0, #5
15. Loop2: mov P0, # 0eeh; flashing yellow light in north and south, east/west red light
16. Acall dtime1
17. MoV P0, # 0feh
18. Acall dtime1
19. Djnz r0, loop2
20. JMP Loop
21. Dtime1:; latency
22. MoV tmod, #01 H
23. MoV th0, # 3ch
24. MoV tl0, # 0b0h
25. MoV R6, #50
26. SETB tr0
27. WM: JBC tf0, next1
28. Ajmp Wm
29. Next1: djnz R6, next2
30. RET
31. Next2: mov th0, # 3ch
32. MoV tl0, # 0b0h
33. Ajmp Wm
34. RET;
35. Dtime: mov tmod, #01 H
36. MoV th0, # 3ch
37. MoV tl0, # 0b0h
38. MoV R6, #100.
39. MoV R7, #6
40. SETB tr0
41. LM: JBC tf0, next
42. Ajmp LM
43. Next: djnz R6, next4
44. Djnz R7, next3
45. Ajmp JS
46. Next3: mov R6, #100.
47. Next4: mov th0, # 3ch
48. MoV tl0, # 0b0h
49. Ajmp LM
50. JS: Ret
51. End

Three types: Keil C loop delay

Code:
1. # Include <at89x51. h>
2. Char C, X;
3. Bit F;
4. Char sum = 0;
5. Xhd ();
6. Dtime (unsigned int I)
7. {Unsigned char J;
8. While (I --)
9. {For (j = 120; j> 0; j --);}
10. }
11. Main ()
12. {Tmod = 0x01;
13. Th0 = (65536-50000)/256;
14. Tl0 = (65536-50000) % 256;
15. Ea = 1;
16. Et0 = 1;
17. Tr0 = 1;
18. P0 = 0xff;
19. Xhd ();
20. }
21. Xhd ()
22. {While (1)
23. {
24. P0 = 0xf3;
25. Dtime (600 );
26. For (x = 0; x <3; X ++)
27. {
28. P0 = 0xf5;
29. Dtime (150 );
30. P0 = 0xf7;
31. Dtime (150 );
32. }
33. P0 = 0xde;
34. Dtime (600 );
35. For (x = 0; x <3; X ++)
36. {
37. P0 = 0xEE;
38. Dtime (150 );
39. P0 = 0xfe;
40. Dtime (150 );
41. }
42. }
43. }

4: delay of Keil C interrupt

Code:
1. # Include <at89x51. h>
2. Char C, X, R;
3. Bit F;
4. Char sum = 0;
5. Xhd ();
6. Main ()
7. {Tmod = 0x01;
8. Th0 = (65536-50000)/256;
9. Tl0 = (65536-50000) % 256;
10. Ea = 1;
11. Et0 = 1;
12. Tr0 = 1;
13. P0 = 0xff;
14. Xhd ();
15. }
16. Void T () interrupt 1 using 1
17. {Th0 = (65536-50000)/256;
18. Tl0 = (65536-50000) % 256;
19. C ++;
20. If (C = r)
21. {C = 0;
22. F = 1;
23. }
24. }
25. Xhd ()
26. {While (1)
27. {
28. R = 20; p0 = 0xf3;
29. While (sum <10)
30. {While (! F );
31. F = 0;
32. Sum ++;
33. }
34. Sum = 0;
35. For (x = 0; x <3; X ++)
36. {
37. R = 8; p0 = 0xf5;
38. While (sum <1)
39. {While (! F );
40. F = 0;
41. Sum ++;
42. }
43. Sum = 0;
44. P0 = 0xf7;
45. R = 8;
46. While (sum <1)
47. {While (! F );
48. F = 0;
49. Sum ++;
50. }
51. Sum = 0;
52. }
53. R = 20; p0 = 0xde;
54. While (sum <10)
55. {While (! F );
56. F = 0;
57. Sum ++;
58. }
59. Sum = 0;
60. For (x = 0; x <3; X ++)
61. {
62. R = 8; p0 = 0xEE;
63. While (sum <1)
64. {While (! F );
65. F = 0;
66. Sum ++;
67. }
68. Sum = 0;
69. R = 8; p0 = 0xf3;
70. While (sum <1)
71. {While (! F );
72. F = 0;
73. Sum ++;
74. }
75. Sum = 0;
76. }
77. }
78. }

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