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justhomework/MCU/MCU_7 _LCD12864/display.c

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#include <reg52.h>
#include "display.h"
#include "delay.h"
// DB P1
// CTL P3
sbit RS = P3 ^ 0;
sbit RW = P3 ^ 1;
sbit E = P3 ^ 2;
sbit CSA = P3 ^ 4;
sbit CSB = P3 ^ 5;
const unsigned char Z[] =
{
0x10, 0x60, 0x02, 0x0C, 0xC0, 0x04, 0x04, 0x04, 0x04, 0xFC, 0x04, 0x04, 0x04, 0x04, 0x00, 0x00,
0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00,
0x20, 0x24, 0x24, 0xA4, 0xFE, 0x23, 0x22, 0x20, 0x00, 0xF8, 0x08, 0x08, 0x08, 0xF8, 0x00, 0x00,
};
const unsigned char Z2[] =
{
0x04, 0x04, 0x7C, 0x03, 0x20, 0x20, 0x20, 0x20, 0x20, 0x3F, 0x20, 0x20, 0x20, 0x20, 0x20, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x10, 0x08, 0x06, 0x01, 0xFF, 0x01, 0x06, 0x00, 0x00, 0x3F, 0x10, 0x10, 0x10, 0x3F, 0x00, 0x00
};
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void write()
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{
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RW = 0;
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E = 0;
E = 1;
delay(2);
E = 0;
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}
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void writeData(unsigned char d)
{
RS = 1;
RW = 0;
P1 = d;
}
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void setCommand(unsigned char d)
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{
RS = 0;
RW = 0;
P1 = d;
}
void setPage(unsigned char p)
{
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setCommand(0xb8 + p);
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}
void setLine(unsigned char p)
{
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setCommand(0xc0 + p);
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}
void setY(unsigned char p)
{
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setCommand(0x40 + p);
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}
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void name(unsigned int line)
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{
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unsigned char l = line % 128;
unsigned int j;
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for(j = l; j < l + 48; j++)
{
if(j < 64)
{
CSA = 1;
CSB = 0;
RS = 0;
RW = 0;
P1 = 0xb8 + 0;
write();
P1 = 0X40 + j;
write(); //ҳ0<D2B3><30>j<EFBFBD><6A>A
RS = 1;
RW = 0;
P1 = Z[j - l];
write();
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RS = 0;
RW = 0;
P1 = 0xb8 + 1;
write();
P1 = 0X40 + j;
write(); //ҳ1<D2B3><31>j<EFBFBD><6A>A
RS = 1;
RW = 0;
P1 = Z2[j - l];
write();
}
else if(j < 128)
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{
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CSA = 0;
CSB = 1;
RS = 0;
RW = 0;
P1 = 0xb8 + 0;
write();
P1 = 0X40 + j - 63;
write(); //ҳ0<D2B3><30>j-63<36><33>B
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RS = 1;
RW = 0;
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P1 = Z[j - l];
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write();
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RS = 0;
RW = 0;
P1 = 0xb8 + 1;
write();
P1 = 0X40 + j - 63;
write(); //ҳ1<D2B3><31>j-63<36><33>B
RS = 1;
RW = 0;
P1 = Z2[j - l];
write();
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}
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else
{
CSA = 1;
CSB = 0;
RS = 0;
RW = 0;
P1 = 0xb8 + 0;
write();
P1 = 0X40 + j - 127;
write(); //ҳ0<D2B3><30>j-127<32><37>A
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RS = 1;
RW = 0;
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P1 = Z[j - l];
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write();
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RS = 0;
RW = 0;
P1 = 0xb8 + 1;
write();
P1 = 0X40 + j - 127;
write(); //ҳ1<D2B3><31>j-127<32><37>A
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RS = 1;
RW = 0;
P1 = Z2[j - l];
write();
}
}
}
void clear()
{
unsigned int i, j;
CSA = 1;
CSB = 0;
for(i = 0; i < 8; i++)
{
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RS = 0;
RW = 0;
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P1 = 0xb8 + i;
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write();
P1 = 0X40;
write();
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for(j = 0; j < 64; j++)
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{
RS = 1;
RW = 0;
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P1 = 0x00;;
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write();
}
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}
CSA = 0;
CSB = 1;
for(i = 0; i < 8; i++)
{
RS = 0;
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RW = 0;
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P1 = 0xb8 + i;
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write();
P1 = 0X40;
write();
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for(j = 0; j < 64; j++)
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{
RS = 1;
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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void miniclear()
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{
unsigned int i, j;
CSA = 1;
CSB = 0;
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for(i = 0; i < 2; i++)
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{
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;
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for(i = 0; i < 2; i++)
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{
RS = 0;
RW = 0;
P1 = 0xb8 + i;
write();
P1 = 0X40;
write();
for(j = 0; j < 64; j++)
{
RS = 1;
RW = 0;
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P1 = 0x00;
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write();
}
}
}
void init()
{
E = 0;
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RS = 1;
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CSA = 1;
CSB = 0;
RS = 0;
P1 = 0X3F;
write();
CSA = 0;
CSB = 1;
RS = 0;
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P1 = 0X3F;
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write();
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}
void test()
{
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unsigned int i, j;
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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();
}
}
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}