Two serial links to PIC with only 1 USART

Z

Zaeed

New Member

• Apr 27, 2009

• #1

Hi, I have a PIC18F4520 which has only 1 usart.
I currently have a ID-12 RFID Reader connected to the RX pin which i use to read the RFID and perform some actions. But now I want to be able to write to the PIC via RS232, and strike a problem that I cannot use both RS232 and the RFID reader.

Does anyone know how I can resolve this issue.

Using a different PIC is not an option.

 

blueroomelectronics

Well-Known Member

• Apr 27, 2009

• #2

Software UART.

 

Z

Zaeed

New Member

• Apr 27, 2009

• #3

Care to expand on that?

 

blueroomelectronics

Well-Known Member

• Apr 27, 2009

• #4

What compiler are you using?

 

Z

Zaeed

New Member

• Apr 27, 2009

• #5

HiTech C18

 

blueroomelectronics

Well-Known Member

• Apr 27, 2009

• #6

Try this thread
https://www.electro-tech-online.com/threads/grr-cant-find-a-software-usart.88223/

 

Last edited by a moderator: Jul 7, 2010

Z

Zaeed

New Member

• Apr 27, 2009

• #7

That link just says Page not found

 

Z

Zaeed

New Member

• Apr 27, 2009

• #8

nvm, found the post..

thanks

 

blueroomelectronics

Well-Known Member

• Apr 27, 2009

• #9

Try this.
https://www.microchipc.com/HiTechCFAQ/index.php#_Toc475127535[/FONT