Asynchronous Serial Routine

cfernandez · Joined: 18 Oct 2003 Posts: 145

Hi,

I have some problems with the software uart and I want to use other routine that CCS, somebody write serial routine for no UART ports ?.

Is possible that post this?

Thank you very much!!

rwyoung · Joined: 12 Nov 2003 Posts: 563 Location: Lawrence, KS USA

Go look at http://www.piclist.com/techref/microchip/rs232.htm. Probably all in assembly but from that you can either work backwards or re-code as in-line.

Also http://www.pic101.com/mcgahee/ is well worth a visit. Fr. Tom McGahee has a very well documented set of RS232 functions.
_________________
Rob Young
The Screw-Up Fairy may just visit you but he has crashed on my couch for the last month!

Freddie · Joined: 06 Sep 2003 Posts: 49

In CCS you can use any pin as a serial port, regardless if that pin has a hardware UART port on it. It works great. I use it all the time..

Look in the manual, but you want to do something like this:

PCM programmer · Joined: 06 Sep 2003 Posts: 21708

He doesn't want to use the CCS library code:

Ttelmah · Guest

Though it would be interesting to know 'why not' The CCS code, except for a few problems on specific chips/versions, is pretty good.

Best Wishes

Freddie · Joined: 06 Sep 2003 Posts: 49

Oh, I see.

If you don't want to use the built-in CCS serial routines, and have not found anything else yet, you could use Peter Anderson's serial routines.

You have to purchase his PIC Routine Library (wich is excellent BTW) at:
http://www.phanderson.com/PIC/PICC/pic_c_routines.html

Here is a sample program that uses his routines:
http://www.phanderson.com/PIC/PICC/CCS_PCM/lcd_f84.html

Hope this help. Very Happy