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| author | Josh Blum <josh@joshknows.com> | 2012-09-11 12:58:28 -0700 |
|---|---|---|
| committer | Josh Blum <josh@joshknows.com> | 2012-09-11 12:58:28 -0700 |
| commit | f969650555e1fbf87548d861e6b5126e8a641b3e (patch) | |
| tree | 5012700bb4a88b166fc9dad0bf827b98ae2e7b62 | |
| parent | 64d1553850fa729e3d4bf0a1d496c47316ac0c34 (diff) | |
| download | uhd-f969650555e1fbf87548d861e6b5126e8a641b3e.tar.gz uhd-f969650555e1fbf87548d861e6b5126e8a641b3e.tar.bz2 uhd-f969650555e1fbf87548d861e6b5126e8a641b3e.zip | |
usrp: fix rx dsp core scaling factor off by 2
The scale factor is a 18 bit number, this should be 1 << 17
| -rw-r--r-- | host/lib/usrp/cores/rx_dsp_core_200.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/host/lib/usrp/cores/rx_dsp_core_200.cpp b/host/lib/usrp/cores/rx_dsp_core_200.cpp index cf8db1927..a9b7d8672 100644 --- a/host/lib/usrp/cores/rx_dsp_core_200.cpp +++ b/host/lib/usrp/cores/rx_dsp_core_200.cpp @@ -184,7 +184,7 @@ public: } void update_scalar(void){ - const double target_scalar = (1 << 16)*_scaling_adjustment/_dsp_extra_scaling; + const double target_scalar = (1 << 17)*_scaling_adjustment/_dsp_extra_scaling; const boost::int32_t actual_scalar = boost::math::iround(target_scalar); _fxpt_scalar_correction = target_scalar/actual_scalar; //should be small _iface->poke32(REG_DSP_RX_SCALE_IQ, actual_scalar); |