Discussion:
Embedded system with 8 each ethernet and serial ports?
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randyest
2007-05-20 22:40:08 UTC
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I've succeeded in simulating my intended system in Labview and I'm very happy with the results.  It's a basic data logger/monitor for 8 ethernet and 8 serial sevices (simultaneously.)  However, now I'm having trouble finding an embedded system (not a PC with a load of PCI I/O cards) that can provide the needed ports.  I like the BlackFin evaluation board on ni.com, but it looks like ethernet and serial ports max out at 2 each, even with daughter cards added on.
 
Does anyone have any suggestions of a Labview-friendly eval board with a CPU, some memory, and 8 each ethernet and serial ports?  Performance requirements are very low (10/100 ethernet max, 56k serial half-duplex.)
 
Alternately, is there any way to add serial and ethernet hubs/switches to the BlackFin eval board?
 
Thanks for any suggestions,
Randy
 
randyest
2007-05-24 00:40:11 UTC
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Michael,
 
Thanks for the reply.  I know it is a bit of a tall order, but futher research seems to indicate it's possible with minor changes/addons and no full-custom board required.  As you suggested, a hub (preferably a switch for my application) can handle 8 ethernet ports, and the SPI interface on the Blackfin eval board should be pretty easy to interface to a 8-way serial interface controller (8x UART).  I even found a device that connects 8 serial ports of data into a single ethernet interface, which is interesting, but maybe a challenge to make drivers to manage it (most I've found are designed for Windows or Linux.)
 
I have a lot of leads on many products, and I still have a lot of work to do to analyze and sort out the pros and cons of each.  If there is interest, I'll post my comparions and conclusions here in a week or two once I complete my research.
 
Thanks again, and best regards,
Randy

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