LPC MicrocontrollersのトピックRe: USB tethering (USB Host RNDIS and LwIP) using LPC55

USB tethering (USB Host RNDIS and LwIP) using LPC55

Michael_25 — Mon, 11 Jan 2021 19:54:26 GMT

Dear,

I'm working on a product using a LPC55S69 running with FreeRTOS, AWS IoT and lwip IP stack. Now I would like to connect the board to internet using an Android phone with USB connection tethering. I think the USB Host CDC RNDIS example from the SDK middleware library is the good starting point.

Is there any example of how to connect LwIP to USB Host CDC RNDIS library for LPC55?

I've heard about an example called "usb_ethernetif_freertos.c" but not sure it will be compatible. (https://community.nxp.com/t5/Kinetis-Microcontrollers/LwIP-and-USB-device/td-p/1194463)

Thanks in advance and bests regards,

Michael

Re: USB tethering (USB Host RNDIS and LwIP) using LPC55

ZhangJennie — Tue, 12 Jan 2021 07:22:43 GMT

Hi,

It's possible but there is no demo for LPC55.

We have lwip_dhcp_usb demo under LPC54xxx SDK and imx RT SDK. This demo describes how to use the USB Host RNDIS & LWIP to access the internet via a Android cellphone which turns on the USB tethering function.

You can refer it and porting it to LPC55.

Have a nice day,

Jun Zhang

Re: USB tethering (USB Host RNDIS and LwIP) using LPC55

andarm — Tue, 24 Aug 2021 03:39:09 GMT

Do you have the demo for USB RNDIS slave for PC ?