mirror/rtl-sdr-blog
1
0
Fork 0
mirror of https://github.com/rtlsdrblog/rtl-sdr-blog.git synced 2025-11-04 02:39:07 +01:00
Code Issues Actions Packages Projects Releases Wiki Activity

correctly clear DDC shift and if_freq registers

Browse Source 
This fixes the 2 kHz LO shift.

Signed-off-by: Steve Markgraf <steve@steve-m.de>
This commit is contained in:
Steve Markgraf
2012-06-03 21:02:48 +02:00
parent 7bd3933c41
commit 9d58aec8cf
1 changed files with 3 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
src/librtlsdr.c
View File

@@ -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++)