/*======================================================================================*/
/* ST7032 Test Code              */
/* SLC1602I Test Code             */
/* Shenzhen Surenoo Technology Co.,Ltd.   www.surenoo.com */
/*======================================================================================*/
#include <reg51.H>
sbit cs1=P3^2;
sbit reset=P1^1;
sbit rs=P310;
sbit sclk=P1^2;
sbit sid=P1^3;
sbit key=P2^0;
#define uchar unsigned char
#define uint unsigned int
/*======================================================================================*/
char code CGRAM_code[]={
0x1f,0x1f,0x1f,0x1f,0x1f,0x1f,0x1f,0x1f,
0x1f,0x11,0x11,0x11,0x11,0x11,0x11,0x1f,
0x1f,0x00,0x1f,0x00,0x1f,0x00,0x1f,0x00,
0x00,0x1f,0x00,0x1f,0x00,0x1f,0x00,0x1f,
0x0a,0x0a,0x0a,0x0a,0x0a,0x0a,0x0a,0x0a,
0x15,0x15,0x15,0x15,0x15,0x15,0x15,0x15,
0x0f,0x09,0x0f,0x09,0x0f,0x09,0x11,0x00,
0x08,0x0f,0x12,0x0f,0x0a,0x1f,0x02,0x02,
};
char code CGRAM[]=
{0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07};
char code japanese1[]=
{0xb0,0xb1,0xb2,0xb3,0xb4,0xb5,};
char code japanese2[]=
{0xb6,0xb7,0xb8,0xb9,0xba,0xbb,};
/*长一点的延时*/
void delay(int i)
{
int j,k;
for(j=0;j<i;j++)
for(k=0;k<110;k++);
}
/*短一点的延时*/
void delay_us(int i)
{
int j,k;
for(j=0;j<i;j++)
for(k=0;k<1;k++);
}
/*等待一个按键（P2.0 口与 GND 之间）*/
void waitkey()
{
repeat:
if (P2&0x01) goto repeat;
else delay(500);
if (P2&0x01) goto repeat;
else;
delay(400);
}
/*写指令到 LCD 模块*/
void transfer_command(int data1)
{
char i;
cs1=0;
rs=0;
for(i=0;i<8;i++)
{
sclk=0;
if(data1&0x80) sid=1;
else sid=0;
sclk=1;
delay_us(5);
data1=data1<<=1;
}
cs1=1;
}
/*写数据到 LCD 模块*/
void transfer_data(int data1)
{
char i;
cs1=0;
rs=1;
for(i=0;i<8;i++)
{
sclk=0;
if(data1&0x80) sid=1;
else sid=0;
sclk=1;
delay_us(5);
data1=data1<<=1;
}
cs1=1;
}
/*初始化 LCD MODULE*/
void initial_lcd()
{
transfer_command(0x38);  /*function select*/
transfer_command(0x01);  /*clear screen*/
delay(5);
transfer_command(0x06);  /*setdisplay mode*/
delay(5);
transfer_command(0x0c);  /*turn on display*/
delay(5);
transfer_command(0x39);  /*extension instruction*/
transfer_command(0x1c);  //
delay(5);
transfer_command(0x6d);  //
delay(5);
transfer_command(0x55);  //粗调对比度,范围 0x54-0x57
delay(5);
transfer_command(0x7a);  //微调对比度,范围 0x70-0x7f
delay(5);
}
void write_CGRAM()
{
int i;
transfer_command(0x38);  /*extension instruction*/
transfer_command(0x40);   //set position
for(i=0;i<64;i++)
{
transfer_data(CGRAM_code[i]);
}
}
/*在指定行和列位置显示指定的字母、数字（5*7 点阵的）*/
void disp_char(int line,int column,char code *dp)
{
int i;
transfer_command(0x80+(line-1)*0x40+(column-1));   //set position
for(i=0;i<16;i++)
{
transfer_data(*dp);
dp++;
}
}
/*在指定行和列位置显示指定的字母、数字（5*7 点阵的）*/
void disp_CGRAM()
{
int i,j;
for(j=0;j<8;j++)
{
transfer_command(0x80);   //set position
for(i=0;i<16;i++)
{
transfer_data(CGRAM[j]);
}
transfer_command(0xc0);   //set position
for(i=0;i<16;i++)
{
transfer_data(CGRAM[j]);
}
waitkey();
}
}

/*Main Code*/
void main(void)
{
reset =0;
delay(20);
reset =1;
delay(100);
initial_lcd();
write_CGRAM();
while(1)
{
disp_char(1,1,"**SLC1602I-FPW**"); /*在第 1 行，第 1 列，显示字符。。。。*/
disp_char(2,1,"*Character COG**"); /*在第 2 行，第 1 列，显示字符。。。。*/
waitkey();
disp_char(1,1,japanese1); /*在第 2 行，第 1 列，显示字符。。。。*/
disp_char(2,1,japanese2); /*在第 2 行，第 1 列，显示字符。。。。*/
waitkey();
disp_char(1,1,"SURLCD 1602I-FPW"); /*在第 1 行，第 1 列，显示字符。。。。*/
disp_char(2,1,"*2018/01/02 COG**"); /*在第 2 行，第 1 列，显示字符。。。。*/
waitkey();
disp_char(1,1,"*0123456789 123*"); /*在第 1 行，第 1 列，显示字符。。。。*/
disp_char(2,1,"*Characters COG*"); /*在第 2 行，第 1 列，显示字符。。。。*/
waitkey();
disp_char(1,1,"*##############*"); /*在第 1 行，第 1 列，显示字符。。。。*/
disp_char(2,1,"*86+13631524276*"); /*在第 2 行，第 1 列，显示字符。。。。*/

waitkey();
disp_CGRAM();
waitkey();
}
}