Is SDK example code lwip_usb_dhcp support cdc-ecm or wwan?

[niclee0213]

As in the question, we refer to the sample code of the SDK package => evkmimxrt1060_lwip_dhcp_usb_bm. The USB tethering is already work under RNDIS protocol.

However, our 4g LTE devices currently is only support two protocol WWAN and cdc-ecm, does lwip support cdc-ecm or WWAN right now? Or any example code we can refer? Is cdc-ecm implemented?  thanks.

https://community.nxp.com/t5/Kinetis-Microcontrollers/USB-tethering-host-RNDIS-protocol-implementati... 

[nxf56274]

Hi,

Thank you for your interest in the NXP MIMXRT Product, I would like to provide service for you.

 We do not have the example about the cdc-ecm. But I found someone implemented the cdc-ecm on stm32. Maybe you can refer this,

Wish it helps you!
If you still have questions about it, please kindly let me know.

[niclee0213]

Thank you for your reply. 

We are looking the USB host implemented sample code for CDC-ECM, you provide stm32 sample code seems USB device implemented, are there differences in implementation actually?

[nxf56274]

Hi,

这个移植重要的主要是32和rt硬件部分异同，要把32的硬件初始化改成rt的。然后就是协议栈，你得找到cdc的业务代码，看看它到底是怎么运作的，是否能移植到rt上