Re: 4G/5G modem supported by Zephyr or not?


Michael Scott
 

Hello Shlomi,

If the modem had a physical interface which supported the PPP protocol you could in theory create a new: modem_iface_ppp.c file which managed it (as opposed to using the current UART-based modem_iface_uart.c file).  Did you have an example product?

It looks like the current Zephyr PPP support is implemented as an L2 layer.

So it might be that if your product supports PPP natively, you would skip the modem_context driver entirely and use the PPP L2 layer for connectivity.

- Mike

On 9/19/19 1:47 PM, Shlomi Vaknin wrote:
Is there a way to connect the ppp protocol to the modem context and work with this network interface instead of the stack that is built in the modem?


‫בתאריך יום ד׳, 18 בספט׳ 2019 ב-18:00 מאת ‪Michael Scott‬‏ <‪mike@...‬‏>:‬

Hello Liang,

On 9/17/19 8:47 PM, liang ding wrote:

Hi, there,

I am wondering if 4G/5G modem is supported by Zephyr? Or any plan to support 4G/5G modem in Zephyr in a future?

I gave a presentation at Embedded Linux Conference about this exact subject.

Slides: https://static.sched.com/hosted_files/ossna19/61/AT-based%20Modem%20Support%20in%20the%20Zephyr%20Project.pdf
Video: https://vimeo.com/ondemand/ossna2019/357948854?autoplay=1

- Mike

 

B.R.

Liang

 

-- 
Michael Scott
Embedded Software Engineer at Foundries.io
"microPlatforms™ for Connected Products"
E: mike@...
W: https://www.foundries.io
-- 
Michael Scott
Embedded Software Engineer at Foundries.io
"microPlatforms™ for Connected Products"
E: mike@...
W: https://www.foundries.io

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