USB to Ethernet (not vidio)

Roman Krasnoperov

Hello! I hav a question. I need to make a converter USB to Enhernet, how to do it in a minimum of time and with minimal code? How can I do it better: used TivaWare ->driverlib and combine emac.c with usb.c, or used TivaWare -> examples -> boards ->dk-tm4c129x enet_io combine with usb_dev/_host? Maybe somebody has an example of such a program? I will be very grateful! This is my first project on TI microcontrollers.

over 9 years ago

0 Amit Ashara over 9 years ago

TI__Guru**** 244400 points

Hello Roman

There is no code for USB to Ethernet in TivaWare. And if it is your first code, then I would recommend going through the examples for USB and Ethernet as to how they work, before integrating the two.

Regards
Amit

0 Roman Krasnoperov over 9 years ago in reply to Amit Ashara

Prodigy 80 points

Hello! Thank you for your answer! And wich of examples me should used: enet_io or enet_uip? I need to receive data through usb and transmit it to the Ethernet.

0 Amit Ashara over 9 years ago in reply to Roman Krasnoperov

TI__Guru**** 244400 points

Hello Roman,

Where do you plan to put the data from Ethernet? A web page hosted by the MCU or a IoT server?

Regards
Amit

0 f. m. over 9 years ago

Guru 11940 points

Maybe somebody has an example of such a program?

There is such a protocol what most commercial USB-to-Ethernet adapters implement, named RNDIS. It is Microsoft proprietary, so you will most probably not get it for free.

This is my first project on TI microcontrollers.

And not to mention, such an endeavor is not really a project for a starter.

0 Roman Krasnoperov over 9 years ago in reply to Amit Ashara

Prodigy 80 points

Data will be sent to the server and the server can also send data to usb device.

0 Roman Krasnoperov over 9 years ago in reply to Amit Ashara

Prodigy 80 points

Оr do I disassemble an example of "tcpEcho" on data reception unit and data transmission unit?

0 Amit Ashara over 9 years ago in reply to Roman Krasnoperov

TI__Guru**** 244400 points

Hello Roman,

tcpEcho will not be an ideal project. I would suggest enet_lwip. But as f.m. said, it is not an easy project for starters.

Regards
Amit

0 Roman Krasnoperov over 9 years ago in reply to Amit Ashara

Prodigy 80 points

I know that this is not easy, but I have experience in prorgramming on AVR microcontrollers. I looked enet_lwip, it is more suitable for my project, thanks!

0 f. m. over 9 years ago in reply to Roman Krasnoperov

Guru 11940 points

Pushing arbitrary data (i.e. not bound to any protocol) between Ethernet and USB shouldn't be too difficult. I think there are several (different) examples available.

A fitting title for such an application would be "gateway". Perhaps you try a search for such example applications for a Cortex M (not bound to Tiva). Combining application logic from one and low-level driver code from another application is often less effort than writing yourself ...

0 Amit Ashara over 9 years ago in reply to f. m.

TI__Guru**** 244400 points

Hello fm

The serial to ethernet TI reference design would be a good starting point.

Regards
Amit

0 Roman Krasnoperov over 9 years ago in reply to Amit Ashara

Prodigy 80 points

Hello! I opened the project "serial to ethernet", but it does not compile. I put ")" in different places, but it still does not compile. Where the error can be here?

0 Roman Krasnoperov over 9 years ago in reply to Roman Krasnoperov

Prodigy 80 points

and if I comment out the block, it still shows that there is an error

0 Amit Ashara over 9 years ago in reply to Roman Krasnoperov

TI__Guru**** 244400 points

Hello Romanov

Can you paste the section of log which shows the error. May be I need to download the same and check as well.

Regards
Amit

0 Amit Ashara over 9 years ago in reply to Roman Krasnoperov

TI__Guru**** 244400 points

Hello Roman,

In the file FreeRTOSConfig.h

replace the line

#define configMAX_PRIORITIES ( ( unsigned portBASE_TYPE ) 16 )

with

#define configMAX_PRIORITIES ( 16 )

Regards,
Amit

0 Sai Reddy over 9 years ago in reply to Amit Ashara

TI__Mastermind 22580 points

If using the Serial to Ethernet application with TivaWare 2.1.2 or later, please follow the modification in the following forum post to compile.
e2e.ti.com/.../522950

These modifications are required as the TivaWare v2.1.2 and above have a new version of FreeRTOS.

Thanks,
Sai

Arm-based microcontrollers

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USB to Ethernet (not vidio)