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Picozed and high speed data acquisition

Former Member

Hello.
This looks like a very interesting product.
I look forward to seeing the hardware documentation guides, tutorials etc. when they are available.
I am interested in high speed data acquisition and using for example a quad or octal (12, 14 or 16 bit) ADC with sampling rates of 65 MSPS or more /channel, with serial LVDS output. There are ADC eval boards available from Texas instruments and Linear Technology with high speed Samtec connectors. How easy would it be to interface these eval boards to the Picozed board? Perhaps it may be necesary to design an interface board between the two? I have seen FMC adapter boards from TI which work with their high speed ADC eval boards. This would only really be relevant for interfacing the ADC to the FMC connector on the Picozed carrier board. Is this the only solution? Thanks in advance.
Regards,
Will.

  • 0

    I took a quick look at the TI FMC adapter board and it looks like it would work interfacing to the PicoZed Carrier Card. The FMC connection on the PicoZed Carrier Card is a LPC (Low Pin Count) FMC implementation.

     

    You will need to use some sort of carrier or interface card to connect to the PicoZed in any case  as all of the PicoZed interfaces, including ethernet, usb-uart, and even power, are connected via the three JX microheaders. One option would be to design your own custom carrier card to interface directly between the PicoZed and your ADC eval board. You could also use a MicroZed FMC Carrier Card if you don't need any of the connections on the PicoZed JX3 connector.

     

    -Gary

  • 0 in reply to Former Member

    Thanks Graham.
    So the picozed board can be used with the microzed carrier card? Interesting idea. But then without JX3 that would mean no usb or ethernet connectivity, correct? Ideally I would like to have multiple Picozed boards and to somehow have each board synchronously sampling (acquiring data) and sending this data to a mini-itx board with hard disk or disk array (RAID0). Easiest method of connecting all the boards together would be I guess ethernet and a network switch. Would be good if it was possible to do this and use the picozed modules as a standalone boards. As this is realistically not possible without the carrier board for reasons previously discussed, the solution is to have each picozed board connected to a PCIe carrier board, that fits in a PC . It's a larger and more costly solution  but should work. Apart from the SoC's available for the picozed, are there any other main component/functional differences between it and the microzed board?
    Thanks in advance.

    W.

  • 0

    No worries on the name, I have been called much worse:-)

     

    Yes, the PicoZed JX1 and JX2 connectors are compatible with the MicroZed, so you can use MicroZed Carrier cards but with the limitations mentioned. You could add your own ethernet phy via EMIO/PL connections from the JX1/JX2 microheaders, but no USB.

     

    The main differences between the MicroZed and PicoZed are the removal of the ethernet, usb, power connectors, microSD card socket, etc. from the PicoZed to save cost and area/height for SOM applications on the assumption that the user would be creating their own carrier card. The PicoZed does add eMMC memory that the MicroZed does not have. And, the availability of four Zynq device options (7010, 7020, 7015, and 7030) with the same footprint, as well as the addition of high speed transceivers on the 7015 and 7030 based boards.

     

    -Gary

  • 0 in reply to Former Member

    Thanks Gary.
    With reference to an earlier post above, any thoughts Gary on the multiple PicoZed (or MicroZed) boards , and mini-ITX board interface?

    Will