Problem SBUF 8051

Hello everybody. I'm french, so sorry for my english. First, thanks for all gentlemens who will help me. I follow a formation about programmation microcontroleur 8051's family. First...
Problem SBUF 8051

Hello everybody. I'm french, so sorry for my english. First, thanks for all gentlemens who will help me. I follow a formation about programmation microcontroleur 8051's family. First...
Need help in serial programming using SBUF register !!!!

Actually I want to transmit 3 bits serially using AT89C51 micro-controller. I have written the code in ".c" file, using c programming trying to transmit the bits serially using SBUF register. ...
Need help in serial programming using SBUF register !!!!

Actually I want to transmit 3 bits serially using AT89C51 micro-controller. I have written the code in ".c" file, using c programming trying to transmit the bits serially using SBUF register. ...
I can't read the SBUF. The local variable don't receive the value of the SBUF. Thank you very much f

void getSBUF() interrupt 4 using 1 { char temp = 1; temp = SBUF; RI = 0; }