diff options
| author | nldudok1 <nldudok1@221aa14e-8319-0410-a670-987f0aec2ac5> | 2007-12-21 04:43:55 +0000 |
|---|---|---|
| committer | nldudok1 <nldudok1@221aa14e-8319-0410-a670-987f0aec2ac5> | 2007-12-21 04:43:55 +0000 |
| commit | 387d6d26a45e1ac037164eea875d87ffae0a1bac (patch) | |
| tree | 9d9b97acd341c3d23b29233d5979cefdedf694c1 /gr-utils/src/python/usrp_fft.py | |
| parent | 836d254439fb08c46edd6f020ab86bd02541baf1 (diff) | |
bugfix for low decimation rates (dec<8)
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@7236 221aa14e-8319-0410-a670-987f0aec2ac5
Diffstat (limited to 'gr-utils/src/python/usrp_fft.py')
| -rwxr-xr-x | gr-utils/src/python/usrp_fft.py | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/gr-utils/src/python/usrp_fft.py b/gr-utils/src/python/usrp_fft.py index 58da671472..c98f01eb48 100755 --- a/gr-utils/src/python/usrp_fft.py +++ b/gr-utils/src/python/usrp_fft.py @@ -69,6 +69,8 @@ class app_top_block(stdgui2.std_top_block): help="Enable waterfall display") parser.add_option("-8", "--width-8", action="store_true", default=False, help="Enable 8-bit samples across USB") + parser.add_option( "--no-hb", action="store_true", default=False, + help="don't use halfband filter in usrp") parser.add_option("-S", "--oscilloscope", action="store_true", default=False, help="Enable oscilloscope display") (options, args) = parser.parse_args() @@ -79,8 +81,17 @@ class app_top_block(stdgui2.std_top_block): self.show_debug_info = True # build the graph + if options.no_hb or (options.decim<8): + #Min decimation of this firmware is 4. + #contains 4 Rx paths without halfbands and 0 tx paths. + self.fpga_filename="std_4rx_0tx.rbf" + self.u = usrp.source_c(which=options.which, decim_rate=options.decim, fpga_filename=self.fpga_filename) + else: + #Min decimation of standard firmware is 8. + #standard fpga firmware "std_2rxhb_2tx.rbf" + #contains 2 Rx paths with halfband filters and 2 tx paths (the default) + self.u = usrp.source_c(which=options.which, decim_rate=options.decim) - self.u = usrp.source_c(which=options.which, decim_rate=options.decim) if options.rx_subdev_spec is None: options.rx_subdev_spec = pick_subdevice(self.u) self.u.set_mux(usrp.determine_rx_mux_value(self.u, options.rx_subdev_spec)) |