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RJ45-sized Linux networking server goes IPv6

linuxgizmos.com

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Re: RJ45-sized Linux networking server goes IPv6

#21

Post by joezydeco »

tlarkworthy wrote: post #20
joezydeco wrote: post #19

Earlier quoted context omitted.

I've had good success with the NXP LPC178x series. Cortex M3 with onboard Flash and SRAM. Ethernet is onboard and easy to attach with a simple PHY, also works well with extenral SDRAM and expanded Flash.

yeah I also used that a while ago, but I don't think I can fit an ethernet client for Robotic Operating System on it. Doesn't appear straight forward anyway:- http://mbed.org/forum/bugs-suggestions/topic/2662/?page=1#co... Hmm, that Xport product is £50 from mouser. Not bad

I don't quite understand mbed. It seems...toylike. I've been using ucLinux for 1788-based stuff. You get the full stack with that.

The other option is something like the TI CC3000, a serially driven wifi module. Adafruit just launched a cheap breakout module.

http://www.adafruit.com/products/1469

Re: RJ45-sized Linux networking server goes IPv6

#22

Post by tlarkworthy »

joezydeco wrote: post #21
tlarkworthy wrote: post #20

Earlier quoted context omitted.

yeah I also used that a while ago, but I don't think I can fit an ethernet client for Robotic Operating System on it. Doesn't appear straight forward anyway:- http://mbed.org/forum/bugs-suggestions/topic/2662/?page=1#co... Hmm, that Xport product is £50 from mouser. Not bad

I don't quite understand mbed. It seems...toylike. I've been using ucLinux for 1788-based stuff. You get the full stack with that. The other option is something like the TI CC3000, a serially driven wifi module. Adafruit just launched a cheap breakout module. http://www.adafruit.com/products/1469

everything we do is in volumes of 1. What is the dev board you use? Mbed is quite convenient for us doing random 1 offs.

EDIT: also can't find evidence of a ROS client working on ucLinux :(

Re: RJ45-sized Linux networking server goes IPv6

#23

Post by pmorici »

nicholassmith wrote: post #7

Out of curiousity does anyone use any of these style devices? And if so what for?

I've used one of these before. They are useful for attaching serial devices to an Ethernet network. It's a lot cheaper and easier than trying to put a PC with enough serial ports near every device you need to talk to. The ones I worked with were part of a radio modem sold by MaxStream, now part of Digi International.

Re: RJ45-sized Linux networking server goes IPv6

#26

Post by analog31 »

nicholassmith wrote: post #7

Out of curiousity does anyone use any of these style devices? And if so what for?

I use microcontrollers for prototyping and proof-of-concept work. Often I combine multiple devices into a system that I can control from a PC. It's been my experience that dropping in a something-to-serial converter is 100x easier than trying to install and understand a communication protocol "stack," even if the code and documentation is supplied by the chip vendor.

I tend to use little USB-to-serial breakout boards, but I'd do the same with RJ45 if I needed that interface.

Once something of mine is ready to commercialize, it gets handed over to professional developers who tend to prefer the built-in firmware based approach, but they end up spending a lot of time debugging those interfaces.

Re: RJ45-sized Linux networking server goes IPv6

#27

Post by joezydeco »

tlarkworthy wrote: post #22
joezydeco wrote: post #21

Earlier quoted context omitted.

I don't quite understand mbed. It seems...toylike. I've been using ucLinux for 1788-based stuff. You get the full stack with that. The other option is something like the TI CC3000, a serially driven wifi module. Adafruit just launched a cheap breakout module. http://www.adafruit.com/products/1469

everything we do is in volumes of 1. What is the dev board you use? Mbed is quite convenient for us doing random 1 offs. EDIT: also can't find evidence of a ROS client working on ucLinux :(

For LPC I've prototyped on boards from Future Designs, like this one:

http://www.teamfdi.com/development-tools-kits/products/1/DK-...

Re: RJ45-sized Linux networking server goes IPv6

#28

Post by ghshephard »

splitbrain wrote: post #10

Isn't IPv6 a feature of the Linux networking stack? Shouldn't everything that runs Linux be IPv6 capable? Or is there some IPv6 stuff implemented in hardware here?

The author writing this article picked up something nonsensical - the entire second half suggested they knew little to nothing about the IPv6 protocol, and this devices implications for such, including statements like, " formally launched in June 2012. "

Re: RJ45-sized Linux networking server goes IPv6

#29

Post by csmuk »

pmorici wrote: post #23
nicholassmith wrote: post #7

Out of curiousity does anyone use any of these style devices? And if so what for?

I've used one of these before. They are useful for attaching serial devices to an Ethernet network. It's a lot cheaper and easier than trying to put a PC with enough serial ports near every device you need to talk to. The ones I worked with were part of a radio modem sold by MaxStream, now part of Digi International.

We used dedicated terminal servers for this function years ago. No PC required. DEC and Allied Telesis made them. Now I feel old.
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