求大神對(duì)以下單片機(jī)源代碼做出闡述,目前我還看不懂

ID:839900 · 發(fā)表于 2020-11-12 17:28

/*************** writer:shopping.w ******************/
#include <reg52.h>
#define uint unsigned int
#define uchar unsigned char
uchar Receive_Buffer[101];
uchar Buf_Index = 0;
uchar code DSY_CODE[]=
{
0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x00
};
void Delay(uint x)
{
uchar i;
while(x--)
{
for(i=0;i<120;i++);
}
}
void main()
{
uchar i;
P0 = 0x00;
Receive_Buffer[0]=i;
SCON = 0x50;
TMOD = 0x20;
PCON = 0x00;
TH1 = 0xfd;
TL1 = 0xfd;
EA = 1;
EX0 = 1;
IT0 = 1;
ES = 1;
IP = 0x01;
TR1 = 1;
while(1)
{
for(i=0;i<100;i++)
{
if(Receive_Buffer[i]==-1)
break;
P0 = DSY_CODE[Receive_Buffer[i]];
Delay(200);
}
Delay(200);
}
}
void Serial_INT() interrupt 4
{
uchar c;
if(RI==0)
return;
ES = 0;
RI = 0;
c = SBUF;
if(c>='0' && c<='9')
{
Receive_Buffer[Buf_Index]=c-'0';
Receive_Buffer[Buf_Index+1]=-1;
Buf_Index = (Buf_Index+1)%100;
}
ES = 1;
}
void EX_INT0() interrupt 0
{
uchar *s = ("Receiving From 8051...\r\n");
uchar i = 0;
while(s[i]!='\0')
{
SBUF = s[i];
while(TI == 0);
TI = 0;
i++;
}
}

復(fù)制代碼

ID:278840 · 發(fā)表于 2020-11-12 18:08

/*************** writer:shopping.w ******************/
#include <reg52.h>//頭文件
#define uint unsigned int//宏定義無符號(hào)整型變量
#define uchar unsigned char//宏定義無符號(hào)字符型變量
uchar Receive_Buffer[101];//定義一個(gè)接收緩存數(shù)組
uchar Buf_Index = 0;//定義一個(gè)無符號(hào)字符型變量
uchar code DSY_CODE[]=
{
0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x00
};//共陰極數(shù)碼管編碼值
void Delay(uint x)//延時(shí)函數(shù)
{
uchar i;
while(x--)
{
for(i=0;i<120;i++);
}
}
void main()//主函數(shù)
{
uchar i;//定義一個(gè)無符號(hào)字符型變量
P0 = 0x00;//初始化P0口，賦值為0，輸出低電平
Receive_Buffer[0]=i;//初始化數(shù)組0的值
SCON = 0x50;//單片機(jī)寄存器設(shè)置
TMOD = 0x20;//
PCON = 0x00;//
TH1 = 0xfd;//計(jì)數(shù)器初始化高八位
TL1 = 0xfd;//低八位
EA = 1;//開總中斷
EX0 = 1;//開外部中斷
IT0 = 1;//啟動(dòng)定時(shí)器中斷
ES = 1;//啟動(dòng)外部中斷
IP = 0x01;
TR1 = 1;//啟動(dòng)定時(shí)器1
while(1)//循環(huán)
{
for(i=0;i<100;i++)
{
if(Receive_Buffer[i]==-1)
break;
P0 = DSY_CODE[Receive_Buffer[i]];
Delay(200);
}
Delay(200);
}
}
void Serial_INT() interrupt 4
{
uchar c;
if(RI==0)
return;
ES = 0;
RI = 0;
c = SBUF;
if(c>='0' && c<='9')
{
Receive_Buffer[Buf_Index]=c-'0';
Receive_Buffer[Buf_Index+1]=-1;
Buf_Index = (Buf_Index+1)%100;
}
ES = 1;
}
void EX_INT0() interrupt 0
{
uchar *s = ("Receiving From 8051...\r\n");
uchar i = 0;
while(s[i]!='\0')
{
SBUF = s[i];
while(TI == 0);
TI = 0;
i++;
}
}

復(fù)制代碼

ID:278840 · 發(fā)表于 2020-11-12 18:10

void Serial_INT() interrupt 4//定時(shí)器1中斷服務(wù)函數(shù)
{
uchar c;
if(RI==0)
return;
ES = 0;
RI = 0;
c = SBUF;
if(c>='0' && c<='9')
{
Receive_Buffer[Buf_Index]=c-'0';
Receive_Buffer[Buf_Index+1]=-1;
Buf_Index = (Buf_Index+1)%100;
}
ES = 1;
}
void EX_INT0() interrupt 0//外部中斷函數(shù)
{
uchar *s = ("Receiving From 8051...\r\n");
uchar i = 0;
while(s[i]!='\0')
{
SBUF = s[i];
while(TI == 0);
TI = 0;
i++;
}
}

復(fù)制代碼

ID:235200 · 發(fā)表于 2020-11-12 18:14

該程序是接收串口發(fā)送來的100個(gè)數(shù)據(jù)，接收后在P0口的數(shù)碼管上顯示接收來的數(shù)據(jù)（數(shù)據(jù)只限0-9的數(shù)字）

ID:313791 · 發(fā)表于 2020-11-12 18:18

就是從串口接受數(shù)據(jù)然后顯示出來，不難的！

ID:687694 · 發(fā)表于 2020-11-12 18:29

此程序可用串口中斷接收串口發(fā)送來的數(shù)字0~9，并將數(shù)字保存在數(shù)組中，數(shù)組能保存最近100個(gè)數(shù)據(jù)，超過時(shí)從最早的數(shù)據(jù)開始依次替換。主程序會(huì)循環(huán)將收到數(shù)字按照查表法轉(zhuǎn)換成段碼輸出在P0口，如果數(shù)據(jù)總數(shù)不到100個(gè)則以當(dāng)前數(shù)據(jù)尾數(shù)-1結(jié)束，并重啟循環(huán)顯示。此程序有外部中斷INT0，當(dāng)外部中斷觸發(fā)則向串口發(fā)送“Receiving From 8051...\r\n”

ID:842763 · 發(fā)表于 2020-11-12 21:04

就是從串口接受數(shù)據(jù)然后顯示出來，接收串口發(fā)送來的100個(gè)數(shù)據(jù)，接收后在P0口的數(shù)碼管上顯示接收來的數(shù)據(jù)

帳號(hào)		自動(dòng)登錄	找回密碼
密碼			立即注冊(cè)


10 黑幣	回復(fù)本帖可獲得 5 黑幣獎(jiǎng)勵(lì)! 每人限 1 次(中獎(jiǎng)概率 50%)

久久久久久久999_99精品久久精品一区二区爱城_成人欧美一区二区三区在线播放_国产精品日本一区二区不卡视频_国产午夜视频_欧美精品在线观看免费

求大神對(duì)以下單片機(jī)源代碼做出闡述,目前我還看不懂