problem description
when I use the serial port assistant, I originally want to send when I receive 0X4a, but I can only send it when I receive 0Xaa, and it is also garbled.
the environmental background of the problems and what methods you have tried
is a problem when using serial port to communicate. It is found that only by entering aa can the sending operation be performed
related codes
/ / Please paste the code text below (do not replace the code with pictures)
< H1 > include < reg52.h > < / H1 > < H1 > define uint unsigned int < / H1 > < H1 > define uchar unsigned charu < / H1 > char sbuf b; / an is used to fetch the value in sbuf, b is used to determine whether to send data
void UartInit ();
void shu ();
uchar hello [] = {0X48Power0X450X4cPower0X4cPower0X4cPower0X4F0X0X0a}; / / send out the text "hello!" Where 0X0d void UartInit 0X0a is a newline operation
void UartInit ()
{
TMOD=0X20;
TH1=0Xfa; //960012M
TL1=0Xfa;
TR1=1;
SCON=0X50;
PCON|=0X80;
EA=1;
ES=1;}
void shu ()
{
uchar i;
for(i=0;i<8;iPP)
{
SBUF=hello[i];
while(!TI); TI=0;
}}
void main ()
{
P0=0X00;
b=0;
UartInit();
while(1)
{
if(b==1)
{shu();b=0;}
}}
void zhongduan () interrupt 4
{
if(RI)
{
RI=0;
a=SBUF;
if(a==0X4a)b=1;
}}
what result do you expect? What is the error message actually seen?
I hope that when the serial assistant enters aa, the computer will display "Hello!"
however, all I received was a pile of garbled codes