單片機(jī)串口以16進(jìn)制發(fā)送0-65535間的數(shù),單片機(jī)收到后在數(shù)碼管上顯示

1、/160-65535(數(shù)碼管上動(dòng)態(tài)顯示出來，波特率自定。/選擇單片機(jī)串口方式 1 時(shí)，有效數(shù)據(jù)位只有 8 位（二進(jìn)制）65535 轉(zhuǎn)化為二進(jìn)16（164都是二位十六進(jìn)制數(shù)發(fā)送的。由于這些原因，我們需要分兩次傳送數(shù)據(jù)。先傳16#include#define uchar unsigned #define uint unsigned int uint a1,a2,num;uchar num1,flag;sbit dula=P26;/申明U1鎖存器的鎖存sbit wela=P27;/申明U2鎖存器的鎖存uchar code table= 0 x3f,0 x06,0 x5b,0 x4f, 0 x66,0

2、 x6d,0 x7d,0 x07, 0 x7f,0 x6f,0 x77,0 x7c, 0 x39,0 x5e,0 x79,0 x71;void delay(uint xms)uint i,j;for(i=xms;i0;i-)/i=xmsxmsfor(j=110;j0;j-);void display(uint value)/顯示子函數(shù)uchar wan,qian,bai,shi,ge;/wan=value/10000;qian=value%10000/1000; bai=value%1000/100; shi=value%100/10; ge=value%10;dula=1; P0=table

3、wan; dula=0; P0=0 xff; wela=1;P0=0 xfe; wela=0; delay(2);dula=1; P0=tableqian; dula=0; P0=0 xff; wela=1; P0=0 xfd; wela=0; delay(2);dula=1; P0=tablebai; dula=0; P0=0 xff; wela=1; P0=0 xfb; wela=0; delay(2);dula=1; P0=tableshi; dula=0; P0=0 xff; wela=1; P0=0 xf7;wela=0; delay(2);dula=1; P0=tablege; d

4、ula=0; P0=0 xff; wela=1; P0=0 xef; wela=0; delay(2);void init()/初始化函數(shù)TMOD=0 x20;/1TH1=0 xfd;TL1=0 xfd;TR1=1;SM0=0;SM1=1;REN=1;EA=1;ES=1;void main()init(); while(1)display(num);void ser() interrupt 4/串口中斷函數(shù)num1+;/num1if(num1=1)/num1=1,也就是傳送數(shù)據(jù)的前兩位a1=SBUF;/a1RI=0;/RI0if(num1=2)/num1=2,也就是傳送數(shù)據(jù)的后兩位a2=SBUF;/a2num=(a18)|a2;/a1num出，通過或運(yùn)算將 a2 儲(chǔ)存在 num 的最低