Dealing with recieved data from RS232

[jet_pack234]

Hi,

Thanks to the help I got from this forum I have successfully managed to communicate via a 16F628 pic to my PC with RS232. I can now transmit data and read it using hyperterminal. The next thing I want to do is transmit data from PC to PIC. I can easily use VB to send data. The thing is how does the PIC present the data it has recieved? Say I sent a chracter to the PIC via RS232, where can it be read on the PIC. Does the UART put it in a register somewhere? If so what is the command to read the register?

Many thanks
Matt

[Sherpa Doug]

Just like you can use putc() to send a character, you use getch() to receive a character. Note that by default getch() will wait for the character. If no character arrives it will wait forever. So call kbhit() first to see if there is a character to be received.

Read about getch() and kbhit() and many of your quaestion will be answered.

Sherpa Doug

[younus_noman]

I am trying to receive data serially over RS-232 through LAB VIEW.

Lab view sends 3 bytes plus a termination character (0D ) at the end to PIC16f876 controller. Some how i am not able to read that termination character (0D) using getc().

Is it necessary for me to send a carriage return and a line feed at the end to read the 4th termination character?

Any ideas?

Noman Younus

[Mark]

Nope, getc() should read it just fine. You might have a problem if you were using gets() though.