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STM32+12864串行字符串顯示工程
0.jpg (51.25 KB, 下載次數(shù): 30)
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2018-12-9 01:00 上傳
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2018-12-9 01:01 上傳
單片機源程序如下:
- #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-數(shù)組
- {
- 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，準備發(fā)送
- for(j=i;j<5;j++)
- {
- ……………………
- …………限于本文篇幅 余下代碼請從51黑下載附件…………
所有資料51hei提供下載:
12864串行-stm32.rar
(435.68 KB, 下載次數(shù): 50)
2018-12-9 01:01 上傳
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