595 Commits

Author SHA1 Message Date
Peter
fed60c571c Update hackrf_transfer.c
Intro:
Some of the Hackrf board use a bad performance crystal, it will cause some program can't work---such as GNSS(GPS) simulation.  Most GPS receiver can capture the satellite
when the doppler within 10KHz, but 10ppm bias of the crystal will cause  15Khz doppler.  And my hackrf board uses a 16ppm crystal :(  normal
Of course, I can replace the crystal or use a external clock. But for most people, add a ppm correct function to hackrf_transfer is useful.
How to use:
1, measure your crystal's error
You can use a precision  counter to measure it.
Connect the hackrf's "clock out" to the counter, get the frequency Fh, then ,
ppm = (Fh - 10000000)/10 
 
You can use a standard clock source such as OCXO, TCXO, or Atom Clock, and a counter
to measure the crystal error too.

2, add an argument "-C ppm " when you use hackrf_transfer.

Eg. , your  crystal error is -8ppm ( In other words , your clock is slower than the standard clock), then you should add "-C -8" follow the hackrf_transfer command.

Hope you can understand my poor English:)

--------------------------
Thanks to Michael Ossmann;
Thanks to Jared Boone ;
Thanks to Benjamin Vernoux ;
Thanks to GPL.
2016-01-13 22:12:42 +08:00
Dominic Spill
fa6f29d742 Merge pull request #222 from skoslowski/c90_warning
Comment style fixup to prevent warning in c90 complier mode
2015-12-07 15:11:10 +07:00
Sebastian Koslowski
e480a28c0a Comment style fixup to prevent warning in c90 complier mode 2015-10-27 20:16:43 +01:00
Dominic Spill
a062596819 Default SPI flash read length to size of SPI flash
Fixes #214
2015-09-09 12:08:28 +01:00
Patrick C. F. Ernzer
f5a3692a66 rad1o USB idProduct cleanups
- udev rule should be lowercase (https://github.com/rad1o/f1rmware/pull/29)
- add entries for rad1o storage from https://github.com/rad1o/f1rmware/blob/master/smartflash/90-rad1o-flash.rules
- Rad1o -> rad1o
- hackrf.h was NOT adjusted to lowercase cc15
2015-08-25 12:13:47 +02:00
Dominic Spill
90e1653613 Update build instructions to include pkg-config 2015-07-25 09:45:50 +01:00
Dominic Spill
499c8bc09e Update build instructions to include pkg-config 2015-07-25 09:42:47 +01:00
Dominic Spill
059c1cc2a7 Move udev rule to libhackrf/ 2015-07-24 16:50:43 +01:00
Michael Ossmann
4da9400c5b cmake bug fix from roox 2015-07-24 09:16:15 -06:00
Michael Ossmann
c4450ad73f bumped .so and .pc version numbers to 0.4 2015-07-23 22:08:51 -06:00
Dominic Spill
bee85a6126 Merge pull request #201 from dominicgs/rad1o-support
Sort readme install instructions
2015-07-23 19:14:52 +01:00
Dominic Spill
512156de43 Sort readme install instructions 2015-07-23 19:12:40 +01:00
Michael Ossmann
8ddbfd92b5 Merge pull request #200 from dominicgs/rad1o-support
Support rad1o's PID
2015-07-21 16:40:58 -06:00
Dominic Spill
8cd0cf1b0e Use rad1o's PID 2015-07-21 17:01:07 +01:00
Michael Ossmann
a1cbec96c6 credit for lines of code belongs in commit log 2015-07-16 08:35:38 -06:00
Chris Kuethe
2f422bc33a allow user to specify frequencies in MHz and scientific notation 2015-07-10 11:59:28 -07:00
Jared Boone
8cfa81f40c Add hackrf_spiflash verbose option, make default not-verbose. 2015-07-10 10:32:55 -07:00
Michael Ossmann
078bd869eb Merge pull request #188 from scateu/master
Add file repeat TX mode [-R].
2015-07-08 16:12:24 -06:00
Michael Ossmann
7d7992d5d6 Merge pull request #177 from ckuethe/master
Explain which gain setting was unacceptable
2015-07-08 16:11:51 -06:00
Michael Ossmann
1f04cfd8e5 Merge pull request #173 from dominicgs/cmake_libusb
Fix discovery of libusb 1.0 for FreeBSD
2015-07-08 16:00:03 -06:00
Michael Ossmann
f54069ae82 Merge pull request #167 from cederom/master
Added FreeBSD support for HOST part.
2015-07-08 15:59:56 -06:00
Michael Ossmann
c6ca16c7a6 Merge pull request #161 from mrbubble62/patch-1
Update README.md with Visual Studio information
2015-07-08 15:45:00 -06:00
Peter Shipley
05416031c2 ChunkSize should be size entire file in bytes minus 8 bytes
Ref : https://ccrma.stanford.edu/courses/422/projects/WaveFormat/
2015-07-08 15:36:41 -06:00
Chris Kuethe
c0c8d619ab Merge branch 'master' of https://github.com/mossmann/hackrf 2015-07-08 11:44:33 -07:00
scateu
2ca87b942a Add file repeat TX mode [-R]. 2015-07-08 18:44:22 +08:00
Dominic Spill
ce9ad343e0 Fix issue #113 - CPLD update fails on Windows
Using the patch from @supersat
2015-07-06 21:25:01 +01:00
Dominic Spill
9cfa4048e9 Free config descriptor once we have the number of interfaces 2015-06-29 13:41:45 +01:00
Dominic Spill
f3a9e66924 Remove duplicate call to set configuration
+ tidy calls to libusb_close()
2015-06-29 13:08:41 +01:00
Dominic Spill
1acd6a6ad6 Fix GitHub issue #163 - Detach the kernel driver automatically 2015-06-26 17:50:27 +01:00
Chris Kuethe
edf8c23cfd Derp. That's what I get for hacking after bedtime... 2015-05-29 09:25:24 -07:00
Dominic Spill
a1b8535ac0 Merge pull request #158 from hessu/feature/multidev
Multiple device support - fixes issue #87
2015-05-29 17:13:03 +01:00
Chris Kuethe
94b37453b7 these don't need to be errors any more 2015-05-29 00:32:20 -07:00
Chris Kuethe
faddb1b320 squish invalid gain values to acceptable levels 2015-05-29 00:26:14 -07:00
Dominic Spill
8c8ce4d511 Merge pull request #176 from dominicgs/cmake_udev_group
Attempt to detect correct group for udev rule
2015-05-27 20:22:44 +01:00
Chris Kuethe
2570f35260 vga gain must be a multiple of 2, not 8
allow both args to be checked before bailing out
2015-05-25 17:38:24 -07:00
Chris Kuethe
ea46e4435b explain which gain setting was wrong
because sometimes you don't see your typos at 3am.
2015-05-25 17:31:53 -07:00
Heikki Hannikainen
3f523326fd Fix compiling on GCC 4.9 ('for' loop initial declarations not allowed with -std=gnu90) 2015-05-25 09:58:40 +03:00
Dominic Spill
a931b4b16d Merge pull request #164 from ckuethe/master
quick reminder of gain control mappings
2015-05-21 17:52:37 -07:00
Dominic Spill
d8ae5e37b0 Attempt to detect correct group for udev rule 2015-05-15 14:40:04 +01:00
Dominic Spill
de81c54e4e Fix discovery of libusb 1.0 for FreeBSD 2015-04-26 16:54:22 +01:00
Tomasz CEDRO
4dc991e79d Added information on FreeBSD build.
Signed-off-by: Tomasz CEDRO <CeDeROM@tlen.pl>
2015-04-08 03:33:41 +02:00
Tomasz CEDRO
4592d38871 Fixed pkgdata install path on FreeBSD.
Signed-off-by: Tomasz CEDRO <CeDeROM@tlen.pl>
2015-04-08 03:33:33 +02:00
Chris Kuethe
8f9db4456b quick reminder of gain control mappings
So that I don't have to keep googling for this every time I forget which
knob is which.

From http://nine.pairlist.net/pipermail/hackrf-dev/2014-March/000276.html
2015-04-04 12:55:54 -07:00
mrbubble62
19d22eb838 Update hackrf.c
Small change to allow build in Visual Studio 2012
2015-03-02 02:40:06 -05:00
mrbubble62
bc8d1d060c Update README.md 2015-03-02 02:32:54 -05:00
Heikki Hannikainen
7c95f8bb5f hackrf_init: only call libusb_init() once 2015-02-24 14:56:19 +02:00
Heikki Hannikainen
1fae679af3 device enumeration: Return usb_board_ids as an enum 2015-02-24 12:28:07 +02:00
Heikki Hannikainen
9b9466f02a libhackrf: The usb firmware reports board type as USB product id. Provide hackrf_usb_board_id_name() to decode that. 2015-02-24 12:15:05 +02:00
Heikki Hannikainen
c0b3638cce Do not break hackrf_open() API, provide a hackrf_open_by_serial() instead for the new functionality. 2015-02-24 07:43:45 +02:00
Heikki Hannikainen
893fef3fcf Bug fix, open the correct device in hackrf_device_list_open 2015-02-24 01:28:13 +02:00