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Raspberry Compute Module IO Board

Former Member

I am currently working on a IO board development and would like to know if a LAN7500 chip can take place of the LAN9512 from the Model B/B+? My reasoning is that I would like to have a product that can support 10/100/1000 internet speeds where it is available. Any help is greatly appreciated.

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  • 0 in reply to clem57

    Well actually it would be  a bit like having  a switch between two computers where one uses 100Mbit Ethernet and the other uses 1Gbit. In this case the LANxxx chip will be buffering the data but the OP won't gain any great advanatge (if any) in throughput and will have the disadvantage of cutting himself off from any community support for the existing and normal solution. It sounds  a bad plan to me.

     

    @Cody  - it looks to me as if you have neither experience or test gear - in which case your only chance of making the the high speed stuff work is to copy exactly the RPIi breakout board for the tracking of high speed signals. (ie - if they use 0..5 oz copper tracks 0.2mm wide, 0.5mm apart separated from a ground plane by xmm of FR4 board then you must too.) The problem you will find is that they don't give you a step by step guide. You may get lucky but this is more a case of trying to fly before you can walk !

     

    Why are you using the compute board at all - isn't there any easier way of getting where you want be ?

     

    MK