Re: [Discuss-gnuradio] Where is the signal of incoming sample in FPGA?

2011-10-30 Thread xi yang
Hi, all, Can I add the FFT after the module fifo_to_gpmc? It gives an output EM_D(15:0) 16bits, an output of data_available. Thanks, Yooxi ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

[Discuss-gnuradio] Where is the signal of incoming sample in FPGA?

2011-10-29 Thread xi yang
Hi, All, We wrote codes for FFT in FPGA. In our codes, we start FFT when we get a START signal. Where can we connect this signal? How do we know that samples are incoming? There are lots of signals in u1e.v that look like having this function, such as input FPGA_RXD, input fpga_rxd1, input db_miso

Re: [Discuss-gnuradio] How can I build component usrp on E100?

2011-10-19 Thread xi yang
> On 19/10/2011 12:41 PM, xi yang wrote: > >> Hi, Marcus and Sean, >> >> I'm a little bit confused by the relationship between UHD and gnuradio. >> I thought we can use either UHD or gnuradio, just UHD provides some unique >> interfaces for the products fro

Re: [Discuss-gnuradio] How can I build component usrp on E100?

2011-10-19 Thread xi yang
able either. SO basically we have to wait for the next release? Thanks, Yooxi 2011/10/19 Marcus D. Leech > On 19/10/2011 11:36 AM, xi yang wrote: > > Hi, all, > > I have updated the kernel modules to 3.0.0 for my USRP E100. > UHD is successfully built and benchmark_rx_rate i

[Discuss-gnuradio] How can I build component usrp on E100?

2011-10-19 Thread xi yang
Hi, all, I have updated the kernel modules to 3.0.0 for my USRP E100. UHD is successfully built and benchmark_rx_rate in uhd/host/build/examples works. I further installed the gnuradio according to the usrpe1xx-FAQhttp://code.ettus.com/redmine/ettus/projects/usrpe1xx/wiki/FAQ $ git clone git://gn

Re: [Discuss-gnuradio] How to update FPGA in E100

2011-08-25 Thread xi yang
Hi, Philip, Thanks! If I got a USRP1, what files do I need to copy to /usr/share/uhd/images ? And that's it? No additional operations? Yooxi 2011/8/25 Philip Balister > On 08/25/2011 03:26 PM, xi yang wrote: > >> Hi, Nick, >> >> Thanks a lot! >> Do you kn

Re: [Discuss-gnuradio] How to update FPGA in E100

2011-08-25 Thread xi yang
ng is in the fpga/usrp2/top/E1x0 > directory. > > --n > > On Wed, Aug 24, 2011 at 9:30 PM, xi yang wrote: > >> Hi, all, >> >> We have made a FPGA FFT module. >> We downloaded the UHD source code from >> https://github.com/EttusResearch/UHD-Mirror/archi

[Discuss-gnuradio] How to update FPGA in E100

2011-08-24 Thread xi yang
Hi, all, We have made a FPGA FFT module. We downloaded the UHD source code from https://github.com/EttusResearch/UHD-Mirror/archives/master We modified the usrp_std.v under fpga/usrp1/toplevel/usrp_std/ to link our FFT module between rx_buffer and USB. We have successfully compiled the usrp_std.qp

Re: [Discuss-gnuradio] The format of I/Q sample

2011-08-15 Thread xi yang
? It's better if we can have a look at the conversion file. Thanks, Yooxi 2011/8/15 Tom Rondeau > On Mon, Aug 15, 2011 at 12:48 AM, xi yang wrote: > > Hi, all > > > > I want to use fpga to do FFT before the data are transmitted to usb. > > > > In FFT module

[Discuss-gnuradio] The format of I/Q sample

2011-08-14 Thread xi yang
Hi, all I want to use fpga to do FFT before the data are transmitted to usb. In FFT module, I used float point numbers to be its input. According to the IEEE Floating-Point Standard, a float point number is represented by 32 bits (bits 0 through 22 form the mantissa, bits 23 through 30 form the e