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justhomework/MCU/MCU_REAL _FINAL/display.c

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2022-05-19 13:07:52 +00:00
#include <reg52.h>
#include "display.h"
#include "delay.h"
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// DB P1
// CTL P3
sbit RS = P2 ^ 0;
sbit RW = P2 ^ 1;
sbit E = P2 ^ 2;
sbit CSA = P2 ^ 4;
sbit CSB = P2 ^ 5;
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void write()
{
RW = 0;
E = 0;
E = 1;
delay(2);
E = 0;
}
void clear()
{
unsigned int i, j;
CSA = 1;
CSB = 0;
for(i = 0; i < 8; i++)
{
RS = 0;
RW = 0;
P1 = 0xb8 + i;
write();
P1 = 0X40;
write();
for(j = 0; j < 64; j++)
{
RS = 1;
RW = 0;
P1 = 0x00;;
write();
}
}
CSA = 0;
CSB = 1;
for(i = 0; i < 8; i++)
{
RS = 0;
RW = 0;
P1 = 0xb8 + i;
write();
P1 = 0X40;
write();
for(j = 0; j < 64; j++)
{
RS = 1;
RW = 0;
P1 = 0x00;
write();
}
}
}
void miniclear()
{
unsigned int i, j;
CSA = 1;
CSB = 0;
for(i = 0; i < 2; i++)
{
RS = 0;
RW = 0;
P1 = 0xb8 + i;
write();
P1 = 0X40;
write();
for(j = 0; j < 64; j++)
{
RS = 1;
RW = 0;
P1 = 0x00;;
write();
}
}
CSA = 0;
CSB = 1;
for(i = 0; i < 2; i++)
{
RS = 0;
RW = 0;
P1 = 0xb8 + i;
write();
P1 = 0X40;
write();
for(j = 0; j < 64; j++)
{
RS = 1;
RW = 0;
P1 = 0x00;
write();
}
}
}
void displayInit()
{
E = 0;
RS = 1;
CSA = 1;
CSB = 0;
RS = 0;
P1 = 0X3F;
write();
CSA = 0;
CSB = 1;
RS = 0;
P1 = 0X3F;
write();
}
void test()
{
unsigned int i, j;
CSA = 1;
CSB = 0;
for(i = 0; i < 8; i++)
{
RS = 0;
RW = 0;
P1 = 0xb8 + i;
write();
P1 = 0X40;
write();
for(j = 0; j < 64; j++)
{
RS = 1;
RW = 0;
P1 = 0x55;
write();
}
}
CSA = 0;
CSB = 1;
for(i = 0; i < 8; i++)
{
RS = 0;
RW = 0;
P1 = 0xb8 + i;
write();
P1 = 0X40;
write();
for(j = 0; j < 64; j++)
{
RS = 1;
RW = 0;
P1 = 0x55;;
write();
}
}
}