Re: [Discuss-gnuradio] saturation with multi_fft.py

[Eric Blossom]

On Mon, Oct 08, 2007 at 08:08:20PM -0400, address@hidden wrote:
> Just as an update, I downloaded revision 6599 and tried again, no change 
> in the result.  I then tried to compile usrp_std.qpf, and that did work; 
> it produced 11,496 total logic elements for a utilization of 95%, so I 
> think the Quartus software is working correctly.
> 
> >From this it would appear that usrp_multi needs to be updated?

Sounds that way.

I may just be missing a verilog file from the project file
usrp_multi.qsf.  Try adding the line below:

address@hidden usrp_std]$ grep cic_dec_shifter *
usrp_std.qsf:set_global_assignment -name VERILOG_FILE 
../../sdr_lib/cic_dec_shifter.v

Eric


> On Mon, 8 Oct 2007, address@hidden wrote:
> 
> >Ok, I installed the latest Quartus II ver. 7.2 software onto a virtualized 
> >WinXP guest hosted by a Linux x86_64 system running kvm/qemu.  I 
> >downloaded a recent revision of gnuradio (revision 6595) onto the host.
> >
> >I started Quartus, and using a samba connection between the virtual guest 
> >and the Linux host I opened the usrp_multi.qpf project file in: 
> >usrp/fpga/toplevel/usrp_multi
> >
> >Not knowing anything about Quartus, I took a guess and hit "Start 
> >Compilation" under the Processing menu.
> >
> >The compilation begins, a lot of green and blue lines go by including many 
> >"Elaborating entity...", but after a short while the compilation fails 
> >with an error:
> >
> >"Error: Node instance "cic_dec_shifter" instantiates undefined entity 
> >"cic_dec_shifter"
> >
> >The line just before this, says:
> >
> >"Info: Elaborating entity "sign_extend" for hierarchy 
> >"rx_chain:rx_chain_0|cic_decim:cic_decim_i_0|sign_extend:ext_input"
> >
> >Not sure what to do at this point....
> >
> >thanks,
> >eric