Re: [Discuss-gnuradio] Testing

[Sara Chérif]

I think maybe there is something wrong in installation also , so I am reinstalling GNURADIO now.

I want to make OFDM system with some requirements on parameters. I don't know how to start . I think I must start by synchronization part as it is the most important part . So to understand how the synchronization is done in GNURADIO , I have to understand the c++ code of the synchronization blocks. But since I found the c++ codes difficult to me to understand and there are too many variables ( I am not new to c++, I used it for 5 years but some concepts like polymorphism are new to me ) , I decided to cout all variables in the hope that it helps me understanding .

Please , advise me if there is another method to understand the blocks. I wonder if I can enter my parameters directly in ofdm loopback example without understanding the code and then getting the system works fine during implementation using USRP.

2014-05-03 5:49 GMT+02:00 Sara Chérif <address@hidden>:

I think maybe there is something wrong in installation also , so I am reinstalling GNURADIO now.

I want to make OFDM system with some requirements on parameters. I don't know how to start . I think I must start by synchronization part as it is the most important part . So to understand how the synchronization is done in GNURADIO , I have to understand the c++ code of the synchronization blocks. But since I found the c++ codes difficult to me to understand and there are too many variables ( I am not new to c++, I used it for 5 years but some concepts like polymorphism are new to me ) , I decided to cout all variables in the hope that it helps me understanding .

Please , advise me if there is another method to understand the blocks. I wonder if I can enter my parameters directly in ofdm loopback example without understanding the code and then getting the system works fine during implementation using USRP.

2014-05-03 5:05 GMT+02:00 West, Nathan <address@hidden>:

On Fri, May 2, 2014 at 8:46 AM, Activecat <address@hidden> wrote:
>
> On Fri, May 2, 2014 at 5:57 PM, Sara Chérif <address@hidden> wrote:
>>
>> Here is the file . I wrote std::cout in the work() , why I don't see the
>> output from this file on terminal after rebuilding ?!
>
>
> It seems like the work() function is not called at all by the scheduler.
> Probably the ofdm sync block doesn't produce any output to feed into your
> custom block.
> I have not much idea beyond this.
> The std::cout in work() should show something if executed.
>
>

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Did you install the file after rebuilding it? That said, I don't know
what you're expecting to gain from this exercise. You're going to see
a bunch of numbers fly by really fast. Wouldn't plotting the output
with one of the waveform analysis tools be more useful?