how can the sbuf register be told to send a string that is received?
because you have still not understood that SBUF is only a single byte (in each direction).
You are trying to run before you have learned to walk You are trying to walk before you have learned to crawl
There are no shortcuts, sorry.
I know that 'read' is a 4 letter word and am thus sorry to use it, but the only way you will get anywhere is by reading "the bible" more than once. Then read the tutorials here and at http://www.8052.com and then and only then try coding something. Posting questions based on yout total lack of understanding will not get you anywhere.
Erik
"the only way you will get anywhere is by reading "the bible" more than once. Then read the tutorials here and at http://www.8052.com and then and only then try coding something."
Unfortunately not.
That will give you sufficient understanding of the 8051 - but you also need a basic understanding of the 'C' programming language.
So, in addition to the above, you will also need a 'C' textbook.
yes