Re: [Discuss-gnuradio] UHD issues on Mac

[Matthias Wilhelm]

Am 15.05.2010 um 00:02 schrieb Josh Blum:

> I believe that i have got a few success emails with mac os. The errors dont 
> really make sense because its just userspace udp, which clearly works because 
> of the find devices. It may be an fpga timing issue.
> 
> I just pushed a bunch of new host code, and posted images .
> 
> Can you give it a try: 
> http://code.ettus.com/redmine/ettus/projects/public/wiki/U2binaries#UHD-Firmware-and-FPGA-Images
> 
> Let me know, thanks!
> -Josh
> 
> On 05/14/2010 09:54 AM, Matthias Wilhelm wrote:
>> Hi,
>> 
>> I'm currently trying the UHD driver on my macbook pro, with still very 
>> limited success. I have the newest git version of uhd and gr-uhd, checked 
>> out today.
>> 
>> $ uhd_find_devices
>> --------------------------------------------------
>> -- UHD Device 0
>> --------------------------------------------------
>> name: USRP2
>> addr: 192.168.10.2
>> 
>> which is good, but actually using a simple_source crashes in interesting 
>> ways.
>> 
>> When calling
>> u = uhd.simple_source("addr=192.168.10.2, recv_buff_size=3.5e6", 
>> uhd.io_type_t.COMPLEX_FLOAT32)
>> or
>> u = uhd.simple_source("addr=192.168.10.2", uhd.io_type_t.COMPLEX_FLOAT32)
>> 
>> I get the following:
>>> terminate called after throwing an instance of 'std::runtime_error'
>>>   what():  No devices found for ----->
>>> addr: 192.168.10.2
>>> recv_buff_size: 3.5e6   ## nothing here with second version
>>> 
>>> Abort trap
>> 
>> 
>> The attached log file is crash-all.log.
>> 
>> Just calling
>> u = uhd.simple_source("", uhd.io_type_t.COMPLEX_FLOAT32)
>> 
>> Gives:
>>> terminate called after throwing an instance of 'std::runtime_error'
>>>   what():  usrp2 no control response
>>> Abort trap
>> 
>> with log file in crash-none.log.
>> 
>> After each of the crashes, the uhd_find_devices still finds my USRP2, so the 
>> firmware/FPGA is still running strong. Pinging 192.168.10.2 results in 
>> request timeouts for icmp_seq. The firewall is turned off.
>> 
>> Am I getting it wrong here, how should the driver be used? Or are there some 
>> Mac-specific issues?
>> 
>> Thanks,
>> Matthias
>> 


Hi, 

its working on the Mac and Linux with the new firmware and FPGA code, i can 
generate a simple_source object now! But the samples I get don't seem right. 

I'm using the XCRV2450 dboard, it says RX 0x0061 and TX 0x0060. With the raw 
ethernet chain, I can receive WLAN signals, but with the UHD driver I see only 
noise, something very low in the FFT sink (around -110dB), no matter what gain 
or antenna ("", J1 or J2) I set. Its the same issue on Mac and Linux platforms.

But it seems that its almost working now... 
Matthias