设计一个流水灯电路（用32个LED组成个环形） 设计一个流水灯电路（用32个LED组成个环形）
\u8bbe\u8ba1\u4e00\u4e2a\u6d41\u6c34\u706f\u63a7\u5236\u7535\u8def\u6709\u4ec0\u4e48\u8981\u6c42\uff1f;
ORG 0000H
LJMP MAIN
MAIN:
MOV TMOD, #01H
MOV TH0, #(65536 - 62500) / 256
MOV TL0, #(65536 - 62500) MOD 256
SETB TR0
M_LOOP:
MOV A, #127
MOV R3, #0
OUT:
MOV P1, A
INC R3
CJNE R3, #60, NEXT ;\u4e0d\u523060, \u5c31\u53bb\u6d41\u6c34
CPL F0 ;\u5230\u4e86, \u5c31\u6539\u53d8\u65b9\u5411
SJMP M_LOOP ;\u4ece\u5934\u5f00\u59cb
;----------------------------------
NEXT:
MOV R2, #16
WAIT:
JNB TF0, $
MOV TH0, #(65536 - 62500) / 256
MOV TL0, #(65536 - 62500) MOD 256
CLR TF0
DJNZ R2, WAIT ;\u4e0d\u5230\u4e00\u79d2\u5c31\u8f6c\u79fb
JB F0, LLL ;\u9009\u62e9\u5de6\u53f3\u65b9\u5411
RR A
SJMP OUT
LLL:
RL A
SJMP OUT
END
\u4e0a\u8ff0\u7a0b\u5e8f\u5df2\u7ecf\u5f97\u5230\u9a8c\u8bc1\u3002
\u8bf7\u770b\u9644\u56fe, \u6709\u7528 Multisim 11 \u4eff\u771f\u8fc7\u4e86, 100% \u7b26\u5408\u4f60\u7684\u529f\u80fd\u8981\u6c42,\u786e\u5b9a\u53ef\u884c
\u6240\u6709 TTL \u7684\u7535\u6e90\u811a(VCC \u548c Ground)\u90fd\u6ca1\u753b\u51fa\u6765, \u90fd\u8981\u63a5\u5230,\u5426\u5219\u5b9e\u505a\u4e0d\u4f1a\u52a8\u4f5c
1. LM555CM \u4ea7\u751f\u4e00\u4e2a 1Hz \u7684 clock, \u5360\u7a7a\u6bd4\u662f 0.674.
2. \u5f00\u673a\u65f6, R35 \u548c C3, \u4f1a\u590d\u4f4d\u6574\u4e2a\u7cfb\u7edf, LED \u4e00\u5b9a\u4f1a\u5148\u6b63\u8f6c
3. \u5f00\u673a\u65f6, \u7b2c\u4e00\u8ba1\u6570\u5668 U14/74HC193 \u4f1a\u5148\u4ece 0 \u4e0a\u6570\u5230 15 (\u5b8c\u6210\u6b63\u8f6c\u529f\u80fd), \u518d\u4ece 15 \u4e0b\u6570\u5230 0 (\u5b8c\u6210\u53cd\u8f6c\u529f\u80fd)
4. U3/74154 \u548c U12/74154 \u662f Demultiplexer, \u4f1a\u628a U14/74HC193 \u7684\u8f93\u51fa, \u70b9\u4eae\u76f8\u5e94\u7684 LED
5. U14/74HC193 \u4e0b\u6570\u5230 0 \u65f6, \u4f1a\u89e6\u53d1 D FlipFlop U16B/74HC74, \u4f1a\u5173\u95ed U3/74154 \u548c U12/74154 \u7684\u8f93\u51fa, \u540c\u65f6\u4e5f\u4f1a\u542f\u52a8\u7b2c\u4e8c\u8ba1\u6570\u5668 U18/74HC193, \u4f1a\u4ece 0 \u4e0a\u6570\u5230 15 (\u5b8c\u6210\u4eae\u706d\u4ea4\u66ff\u529f\u80fd)
6. \u5f53\u7b2c\u4e8c\u8ba1\u6570\u5668 U18/74HC193 \u4e0a\u6570\u5230 15 \u65f6, \u4f1a\u590d\u4f4d\u6574\u4e2a\u7cfb\u7edf
其实就是16个灯轮流亮。用计数器和译码器何尝不可以。
用4017数字电路
这个我来帮助你!!!
呵呵
用单片机很容易就解决了，555还要计算电阻和电容来确定定时的问题，我不太会
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