diff options
| author | Steve Markgraf <steve@steve-m.de> | 2012-06-03 21:02:48 +0200 |
|---|---|---|
| committer | Steve Markgraf <steve@steve-m.de> | 2012-06-03 21:02:48 +0200 |
| commit | 9d58aec8cf9e711d927beccc51120648ed024d9f (patch) | |
| tree | 8ba8d12d887e7b9759af2122bbd4573544bd373c /src | |
| parent | 7bd3933c41b251a841915fd13107ec8391530998 (diff) | |
correctly clear DDC shift and if_freq registers
This fixes the 2 kHz LO shift.
Signed-off-by: Steve Markgraf <steve@steve-m.de>
Diffstat (limited to 'src')
| -rw-r--r-- | src/librtlsdr.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/librtlsdr.c b/src/librtlsdr.c index c138438..7c315c2 100644 --- a/src/librtlsdr.c +++ b/src/librtlsdr.c @@ -470,8 +470,9 @@ void rtlsdr_init_baseband(rtlsdr_dev_t *dev) rtlsdr_demod_write_reg(dev, 1, 0x15, 0x00, 1); rtlsdr_demod_write_reg(dev, 1, 0x16, 0x0000, 2); - /* set IF-frequency to 0 Hz */ - rtlsdr_demod_write_reg(dev, 1, 0x19, 0x0000, 2); + /* clear both DDC shift and IF frequency registers */ + for (i = 0; i < 6; i++) + rtlsdr_demod_write_reg(dev, 1, 0x16 + i, 0x00, 1); /* set FIR coefficients */ for (i = 0; i < sizeof (fir_coeff); i++) |