40 lines
658 B
C
40 lines
658 B
C
#include "Key.h"
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unsigned char Key_Read()
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{
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unsigned char temp = 0;
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ET0 = 0;
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P44 = 0;
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P42 = 1;
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P35 = 1;
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if (P33 == 0)
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temp = 4;
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if (P32 == 0)
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temp = 5;
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if (P31 == 0)
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temp = 6;
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if (P30 == 0)
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temp = 7;
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P44 = 1;
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P42 = 0;
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P35 = 1;
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if (P33 == 0)
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temp = 8;
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if (P32 == 0)
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temp = 9;
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if (P31 == 0)
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temp = 10;
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if (P30 == 0)
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temp = 11;
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P44 = 1;
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P42 = 1;
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P35 = 0;
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if (P33 == 0)
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temp = 12;
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if (P32 == 0)
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temp = 13;
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if (P31 == 0)
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temp = 14;
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if (P30 == 0)
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temp = 15;
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return temp;
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} |