[USRP-users] What is the battery pack voltage for E310, E312 and is required firmware update already available?

Martin usrp-users-list at olifantasia.com
Sat Oct 3 03:31:25 EDT 2015


Hi,

On 02-10-15 14:24, Sylvain Munaut wrote:
> Hi,
>
>>> Does this mean you can only install this firmware with a programmer,
>>> through jtag ?
>>>
>>> Or is there another way?
>>
>> The only way is via jtag.
>
> It's not technically JTAG it's more SPI, via the ISP protocol for AVR.
> But yeah, you need to open the E310 and physically connect to the ISP header.
>
> The main issue is that the header is 1.27 mm pitch pins and I could
> just not find any matching connectors for it. At least in
> 'wire-to-board' style.
> Samtec has one but it's impossible to buy. There are also some others
> but not in 3x2 configuration, only 5x2 and so they wouldn't fit as it.
>
> In the end I just connected to it using EZ-hooks, but it required
> taking it all appart (separate radio from main board) to have the
> clearance to place them.
>
> The SPI port is connected to the FPGA, so the only thing missing to
> make it programmable without a dedicated programmer is the ability to
> control the RESET line.

Thanks for the info, Sylvain.
I will get a AVR programmer and look for a connector.

Do you know the Samtec partnumber, so I have a starting point for my 
search for a connector.

Does anybody else (from Ettus) know which connector can be used for this ?

Cheers,

Martin

>
> Cheers,
>
>      Sylvain
>





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