89 lines
1006 B
C
89 lines
1006 B
C
#include <reg52.h>
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#include "display.h"
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#include "delay.h"
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// DB P1
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// CTL P3
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sbit RS = P2 ^ 0;
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sbit RW = P2 ^ 1;
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sbit E = P2 ^ 2;
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sbit CSA = P2 ^ 4;
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sbit CSB = P2 ^ 5;
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void write()
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{
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RW = 0;
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E = 0;
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E = 1;
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delay(2);
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E = 0;
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}
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void clear()
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{
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unsigned int i, j;
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CSA = 1;
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CSB = 0;
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for(i = 0; i < 8; i++)
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{
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RS = 0;
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RW = 0;
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P1 = 0xb8 + i;
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write();
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P1 = 0X40;
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write();
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for(j = 0; j < 64; j++)
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{
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RS = 1;
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RW = 0;
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P1 = 0x00;;
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write();
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}
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}
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CSA = 0;
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CSB = 1;
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for(i = 0; i < 8; i++)
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{
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RS = 0;
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RW = 0;
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P1 = 0xb8 + i;
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write();
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P1 = 0X40;
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write();
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for(j = 0; j < 64; j++)
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{
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RS = 1;
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RW = 0;
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P1 = 0x00;
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write();
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}
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}
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}
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void displayInit()
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{
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E = 0;
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RS = 1;
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CSA = 1;
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CSB = 0;
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RS = 0;
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P1 = 0X3F;
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write();
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CSA = 0;
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CSB = 1;
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RS = 0;
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P1 = 0X3F;
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write();
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}
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