Re: [Discuss-gnuradio] USRP B210 GPIO

[Martin Braun]

On 06.08.2015 08:20, Samith Abeywickrama wrote:
> Hi,
> 
> Thank you for your quick reply. I tried to used that UHD example  by
> doing several changes, but when I going to change data direction
> register (DDR) by "usrp->set_gpio_attr(gpio, "DDR", ddr, mask); "
> command. But I got following error massage,

What's the value of 'gpio'?

M


> 
> Error: LookupError: Path not found in tree: /mboards/0/gpio/DDR
> 
> I have Ver 6 USRP B210 green board and 3.8.005 UHD version. I am waiting
> for your help. Thank you in advance.
> 
> On Wed, Aug 5, 2015 at 11:02 PM, <address@hidden
> <mailto:address@hidden>> wrote:
> 
>     __
> 
>     The B2xx GPIO J504 GPIO has the same API as X3xx. 
> 
>      
> 
>      
> 
>      
> 
>     On 2015-08-05 13:26, Samith Abeywickrama wrote:
> 
>>     Hi, I want to control an antenna multiplxer via J504 gpio port.
>>     Actually I want to have logic 1 and logic 0 in order to switch the
>>     multiplxer. But it is difficult to find gpio example for B210. I
>>     have new version of b210 (green board) and 3.8.005 uhd version. I
>>     m very much thankful to if you can help me with gpio example.
>>     Ettus research says that B210 is supported for gpio in j504 port
>>     but in UHD there is only one example for x300.
>>
>>
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> 
> 
> 
> 
> -- 
> Best Regards!
> Samith
> 
> 
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