Understand lwIP and PPP protocol

[Khanajkmal]

I am Working on Quectel EC200U(GSM) usb + rt1170 (m7) 

i successfully send the AT command to  EC200U and got (OK) msg from that over USB.

next i am going to work on lwIP + PPP protocol . 

i need to know what to do next , i dint know anything about lwip or ppp protocol.

[Omar_Anguiano · Accepted solution]

Hello
I hope you are well.

These resources can be helpful to become familiar with lwip:
Brief Introduction to LwIP stack in MCUXpresso SDK - NXP Community
lwIP Wiki | Fandom

Best regards,
Omar

[Khanajkmal]

is there any example code for ppp protocol with lwip stack ?

or any document for ppp + lwip in imxrt1170

[Omar_Anguiano]

Unfortunately, we don't have this specific example.
However, I consider that these examples might be helpful as a starting point: 
lwIP: PPP netif (nongnu.org)
PPP | lwIP Wiki | Fandom

Best regards,
Omar