Internet connection for AVR

Go To Last Post
7 posts / 0 new
Author
Message
#1
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

HI,

I would like to know your experience with internet connections. I know very little of the matter and am looking at this line of internet chip.

http://www.connectone.com/

I was also looking at the wiznet chip too, but for some reason appears to be more difficult to implement... .in part because of they expect a royalty on their core

Quote:
WIZnet delivers iinchip core database in the net-list form along with evaluation board, software, full training, and technical support. We don't provide RTL code. The licensing policy is usually based on initial fee and per-unit royalty. We can answer in detail after the NDA agreement.

http://www.iinchip.com/

Patrick

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

If I were starting on the project today, I would at least seriously consider the Lantronix Xport.

http://www.lantronix.com/device-...

Lee

You can put lipstick on a pig, but it is still a pig.

I've never met a pig I didn't like, as long as you have some salt and pepper.

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

For the wiznet chip it's possible to use a module like the NM7000A. With the socket API for the W3100A chip a simple startup application is not that difficult. And it is a little bit cheaper than Xport.

Regards,
Christian

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

I'm in the middle of a project that uses the XPort right now. I have to say I am impressed by the features and capabilities.

Anyone looking at them may or may not be digging deep enough to need the development kit but I recommend it. When you get under the hood of those XPorts, they are pretty amazing.

Please note - this post may not present all information available on a subject.

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

I read the user's manual for the ichip:
iM560UC-EM iM560UC-EM Embedded iModem 56,000 bps 50-2043-02
and for USD 140.00 seems like a painless way to implement a 15kb web server, in addition to all the other protocols allowing for remote data exchange and application updates in the device.

Thanks for your comments.

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

i am currently developing a application with needs internet access over GPRS. we are using connectone's IChip series. you can use either its socket interface or what they call 'serial net'. it transparently forwards the serial datastream to a predefined ip:port.

remco

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

@remco

the serial net protocol caught my attention as a novel way of data exchange - are you using that protocol? if so, why did you chose it?

I see that in 2003, Atmel and Wiznet developed and ethernet solution...

http://www.beyondlogic.org/ether...

Quote:
WIZnet Inc. and Atmel Corporation has forged a strategic partnership to develop and co-market Internet connectivity solutions. As part of this agreement WIZnet will manufacture OEM products around Atmel’s AVR microcontrollers. Both have agreed to move in the direction of system-on-chip (SoC) which will see WIZnet’s TCP/IP hardwired technology be integrated with Atmel’s MCU cores. Outcome? An AVR with \ hardware TCP/IP stack and ethernet in the one chip. . . .

Quote:
The @Web SEG32 gateway module combines Atmel’s AT89C51RC2 MCU with WIZnet’s W3100A hardwired embedded Internet TCP/IP chip. The module provides real-time data processing by hardware stack protocol, without the need for RTOS or changing application software. It has a single RS232 port and 10/100 Base-T Ethernet network interface and through the W3100A chip provides four concurrent channels giving 115 Kbps per channel.

@Web TCP/IP Solutions with Atmel’s C51 Flash Microcontrollers
By Etienne Beneteau, Microcontroller Marketing Manager
http://www.atmel.com/dyn/resourc...