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#include "12864.h"
GPIO_InitTypeDef GPIO_InitStructure;
void Delay(__IO uint32_t nCount)
{
for(; nCount != 0; nCount--);
}
void send_dat(unsigned char dat)
{
unsigned char i;
//GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
for(i=0;i<8;i++)
{
if((dat&0x80)==0x80) SID_1;
if((dat&0x80)==0x00) SID_0;
CLK_0;
Delay(35);
CLK_1;
dat<<=1;
}
}
unsigned char get_byte()
{
unsigned char i,temp1=0,temp2=0;
//GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
for(i=0;i<8;i++)
{
temp1=temp1<<1;
CLK_0;
Delay(25);
CLK_1;
Delay(20);
CLK_0;
if(GPIO_ReadOutputDataBit(GPIOE,GPIO_Pin_3)) temp1++;
}
for(i=0;i<8;i++)
{
temp2=temp2<<1;
CLK_0;
Delay(25);
CLK_1;
Delay(25);
CLK_0;
if(GPIO_ReadOutputDataBit(GPIOE,GPIO_Pin_3)) temp2++;
}
//GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
return ((0xf0&temp1)+(0x0f&temp2));
}
void check_busy()
{
do
{
send_dat(0xfc);
}
while((get_byte()&0x8000)==0x8000);
}
void send_cmd(unsigned char cmd)
{
check_busy();
send_dat(0xf8); //
send_dat(cmd&0xf0); //
send_dat((cmd&0x0f)<<4); //
}
void write_char(unsigned char dat)
{
check_busy();
send_dat(0xfa);//rw=0;rs=1
send_dat(dat&0xf0);
send_dat((dat&0x0f)<<4);
}
void lcd_clear() //清除顯示
{
send_cmd(0x01);
}
void lcd_pos(unsigned char y_add , unsigned char x_add)
{
switch(y_add)
{
case 1:
send_cmd(0X80|x_add);break;
case 2:
send_cmd(0X90|x_add);break;
case 3:
send_cmd(0X88|x_add);break;
case 4:
send_cmd(0X98|x_add);break;
default:break;
}
}
void lcd_wstr(unsigned char y_add , unsigned char x_add , unsigned char *str) //
{
unsigned char i;
lcd_pos(y_add , x_add);
for(i=0;str[i]!='\0';i++)
{
write_char(str[i]);
}
}
void write_figer(unsigned char y_add , unsigned char x_add , unsigned int figer)//在任何位置寫數(shù)字
{
unsigned char d[5],i,j;
lcd_pos(y_add , x_add);
d[4]=figer%10;
d[3]=figer%100/10;
d[2]=figer%1000/100;
d[1]=figer%10000/1000;
d[0]=figer/10000;
for(i=0;i<5;i++)
{
if(d[i]!=0)break;
}
if(i==5)i--;
if(i==4)send_dat(0x30);//數(shù)據(jù)裝完，準(zhǔn)備發(fā)送
for(j=i;j<5;j++)
{
send_dat(d[j]|0x30);//取得的數(shù)字加上0x30也即得到該數(shù)字的ASCII碼，再將該數(shù)字發(fā)送去顯示
}
}
void lcd_init() //
{
Delay(0xfff);
send_cmd(0x30);
send_cmd(0x0C);//0000,1100 整體顯示，游標(biāo)off，游標(biāo)位置off
send_cmd(0x01);//0000,0001 清DDRAM
send_cmd(0x02);//0000,0010 DDRAM地址歸位
send_cmd(0x80);//1000,0000 設(shè)定DDRAM 7位地址000，0000到地址計(jì)數(shù)器A
}
/******************* (C) COPYRIGHT 2011 奮斗STM32 *****END OF FILE****/

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