How to set Uart2 ?

Alan,

Thanks for your suggestion.

I found the key to my problem. There are no fault with my code. But the hardware didn't set the RI2 and TI2 with 1 after receive and transmit a char. So the chip are waiting for set. So it had no result from uart2.

Do you have some suggestion about this question.

Thank you again.

Alan,

Thanks for your suggestion.

I found the key to my problem. There are no fault with my code. But the hardware didn't set the RI2 and TI2 with 1 after receive and transmit a char. So the chip are waiting for set. So it had no result from uart2.

Do you have some suggestion about this question.

Thank you again.

Do you have some suggestion about this question?


I am not sure what this question is. Apparently you have already concluded that your problem was due to a hardware failure. In that case, I will be very interested to know your diagnostic procedure.

For example:

   for(i=48;i<58;i++)  putchar(i);
   

Here is what I would do:

TI2=0;         //Just in case TI2 has been set..
for (i=48; i<58; i++) 
{
   SBUF2=i;    //Not sure if SBUF2 is the right
               //symbol name. Could be S2BUF?
   while(!TI2) //TI2 will be set by hardware
   {           //upon completion of one byte
   }
   TI2=0;
}

I tried, but not successful.

If you set TI2 to 1 by software. It passed.

So sth wrong with the hardware. I believe it.

Thank you for your help.

By the way, Which country are you in?