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| author | Martin Braun <martin.braun@ettus.com> | 2015-01-27 09:12:54 +0100 |
|---|---|---|
| committer | Martin Braun <martin.braun@ettus.com> | 2015-01-27 09:12:54 +0100 |
| commit | 94e11cb457fc7cc9b5fa5259881ec5b729eff201 (patch) | |
| tree | 8437e1890af5fc959420e2a6cc651a85c538f31c /host/lib/usrp/common/ad9361_driver | |
| parent | 5047677c784077be82d11be26277260e6350a5bc (diff) | |
| parent | d238f12252870d73df125649d965edc2a05debf5 (diff) | |
| download | uhd-94e11cb457fc7cc9b5fa5259881ec5b729eff201.tar.gz uhd-94e11cb457fc7cc9b5fa5259881ec5b729eff201.tar.bz2 uhd-94e11cb457fc7cc9b5fa5259881ec5b729eff201.zip | |
Merge branch 'maint'
Conflicts:
host/docs/usrp_e3x0.dox
Diffstat (limited to 'host/lib/usrp/common/ad9361_driver')
| -rw-r--r-- | host/lib/usrp/common/ad9361_driver/ad9361_device.cpp | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/host/lib/usrp/common/ad9361_driver/ad9361_device.cpp b/host/lib/usrp/common/ad9361_driver/ad9361_device.cpp index 1d199cf0d..8ee7bf231 100644 --- a/host/lib/usrp/common/ad9361_driver/ad9361_device.cpp +++ b/host/lib/usrp/common/ad9361_driver/ad9361_device.cpp @@ -135,9 +135,15 @@ void ad9361_device_t::_program_fir_filter(direction_t direction, int num_taps, b _io_iface->poke8(base + 5, reg_numtaps | 0x1A); if (direction == RX) { _io_iface->poke8(base + 5, reg_numtaps | 0x18); + /* Rx Gain, set to prevent digital overflow/saturation in filters + 0:+6dB, 1:0dB, 2:-6dB, 3:-12dB + page 35 of UG-671 */ _io_iface->poke8(base + 6, 0x02); /* Also turn on -6dB Rx gain here, to stop filter overfow.*/ } else { - _io_iface->poke8(base + 5, reg_numtaps | 0x19); /* Also turn on -6dB Tx gain here, to stop filter overfow.*/ + /* Tx Gain. bit[0]. set to prevent digital overflow/saturation in filters + 0: 0dB, 1:-6dB + page 25 of UG-671 */ + _io_iface->poke8(base + 5, reg_numtaps | 0x18); } } |