Re: [Discuss-gnuradio] 16 digital I/O lines to control external devices like antenna switches

On 05/20/2010 10:45 PM, Marcus D. Leech wrote:
> On 05/21/2010 01:37 AM, Matt Ettus wrote:
>>
>>
>> Each daughterboard connector has 16 GPIOs. Some of them are used by
>> the daughterboards, but others are available for your use. On the
>> WBX, io_tx[14:8] are available for you to use, and they come to the
>> connector on the grand-daughterboard.
>>
>> If you need to synchronize the action of these pins precisely, the
>> bets way to do this is by modifying the FPGA. If you just need to
>> turn them on and off from software, you can do that with the API.
>>
>> Matt
>>
>>
> The schematic for WBX makes it look like a couple of the io_rx are
> available as well--are they not?
>
>

Yes, some others are available as well. You need to look at both the
wbx and grandaughterboard schematics.

Matt

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