Module GPRS: CMUX fonction

Status
Not open for further replies.
A

alcaza

Newbie level 1
Joined
May 26, 2011
Messages
1
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,287
Hello evryone!!
I use a module GPRS (wismo228) to tranmit data. This module is on serie with pic24. I want to send AT commande and Data at the same time. This fonctionality is only possible by using the CMUX fonction. But i don't know how to implemant this cmux fonction in the pic. Does anyone can help me for that?
Thank
 

Hi, you have to enable the multiplexer mode by sending "at+cmux=0\r" to the modem.
Then, the gsm0710 protocol stack (which you have to code) will take care of the encapsulation.
https://www.3gpp.org/ftp/Specs/html-info/0710.htm
Finally, in your main program you open two channels, one for the AT commands and one for the data.
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…