本帖最后由 whsbk 于 2016-10-22 14:09 编辑
看便宜买了个2453bg数码管,结果找不到正确管脚图,用线一根根测出来,和大家分享。
单点不亮,时钟点亮
B
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A| G |C
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F| |D
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E
G C B A F E D
14 13 12 11 10 9 8 //位选,高电平有效
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1 2 3 4 5 6 7
空 段1 段2 段3 段4 点负 点正
用P3.0 ~ P3.6接14至8真值表如下:
unsigned char code numtab[10]=
{0x7E,0x06,0x6D,0x4F,0x17,0x5B,0x7B,0x0E,0x7F,0x5f};
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