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819 Commits

Author SHA1 Message Date
Jared Boone
b9f124850b Add buffer_t<float> type alias. 2016-01-11 16:10:48 -08:00
Jared Boone
5e917ebb2c Cache IIR filter state because compiler *sometimes* doesn't want to. 2016-01-11 15:44:42 -08:00
Jared Boone
e169a46367 Un-static squelch history. 2016-01-11 11:38:33 -08:00
Jared Boone
64966d4539 Fix NaNs coming out of angle_approx_0deg27(). 
Used in FM demodulator, was causing downstream problems when using the floating point values directly.
 2016-01-11 11:17:54 -08:00
Jared Boone
5a532f34a7 Remove extra buffer structs/copies. 2016-01-11 09:35:58 -08:00
Jared Boone
877a66ca78 Create AudioOutput singleton, from extracted BasebandProcessor code. 2016-01-10 20:25:24 -08:00
Jared Boone
364217a2b5 Rename IIR filter config variables. 2016-01-10 20:20:07 -08:00
Jared Boone
13d260f936 Add IIR passthrough filter config. 2016-01-10 20:18:12 -08:00
Jared Boone
5dac0bbe49 Squelch special case when threshold == 0, do not squelch. 2016-01-10 20:16:21 -08:00
Jared Boone
01df79641c Rename squelch algorithm variable for clarity. 
Helps to understand meaning of threshold.
 2016-01-10 20:14:26 -08:00
Jared Boone
6f00687d88 Add configure() for IIR filter. 2016-01-10 20:11:27 -08:00
Jared Boone
497adda390 IIR default constructor passes no audio. 
Debugging mechanism -- filter must be configured to pass audio.
 2016-01-10 20:11:05 -08:00
Jared Boone
172a6da36c Unconst IIR configuration and filter. 2016-01-10 20:06:58 -08:00
Jared Boone
eb5b2d7d30 Fix broken audio stats when audio is muted. 2016-01-10 11:34:06 -08:00
Jared Boone
4ea84301c6 For non-audio modes, don't bother muting audio. 
It's assumed base class will start with audio muted.
 2016-01-10 11:33:44 -08:00
Jared Boone
d6f797540d Remove baseband message from queue after it is processed. 
Application code can now wait on queue empty and know the baseband's state.
 2016-01-10 11:15:37 -08:00
Jared Boone
146caaab6f Consolidate baseband disable code. 2016-01-10 11:10:13 -08:00
Jared Boone
d9bfaaf805 Stop baseband streaming when switching radio configuration. 
Probably unnecessary, but feeling paranoid about changing sample rates while there's a processor actively handling samples, and potentially maxing out the M4 core.
 2016-01-10 11:01:54 -08:00
Jared Boone
136ba895ef Clear spectrum FIFO when streaming is stopped. 2016-01-10 11:00:09 -08:00
Jared Boone
62e5ec1dbb Postpone clearing channel_spectrum_request_update until finished with data in array. 
There was potential for new samples to be copied into array as the FFT and post-processing were occuring.
 2016-01-10 10:45:22 -08:00
Jared Boone
d821afc60d Spectrum streaming control, spectrum attributes back in each frame. 
TODO: This feels kinda complex, and there's some repeated Processor code that needs to be refactored into a base class.
 2016-01-10 10:42:20 -08:00
Jared Boone
0647f26707 Move SGPIO configuration and control to baseband firmware. 
Addresses long-standing and annoying bug where SGPIO DMA channel would not disable -- and not configure cleanly next time it was needed. My theory is that the DMA channel couldn't disable until it got a request from the peripheral, and sometimes the peripheral was disabled before that last request.

Anyway, the baseband firmware should control the SGPIO, methinks, despite the impact on baseband code size.
 2016-01-10 10:23:39 -08:00
Jared Boone
8fde4972b4 Methods to peek and skip messages in queue. 
Allows receiver to not consume a message until after it's handled. And that enables the transmitter to block until the queue is empty, knowing that when unblocked, all messages in queue have been handled.
 2016-01-10 10:15:25 -08:00
Jared Boone
c75c167c25 Rename GPDMA channel disable_force() to disable(). 
There was nothing particularly forceful about the disable_force() code. Whether it's a "forced" operation depends on what happens before and after (HALT and ACTIVE flags are involved in a smooth disabling of the channel).
 2016-01-10 10:11:16 -08:00
Jared Boone
43d6098c48 Move baseband_sgpio.* to common/. 
It'll soon be used by M4 code, not M0. SGPIO baseband streaming needs to be tightly controlled by... the baseband!
 2016-01-09 17:57:37 -08:00
Jared Boone
365c2ef946 Handle baseband::dma::wait_for_rx_buffer() returning empty buffer. 
Was technically OK before, because sample count was zero. But seems silly (and vaguely dangerous) to call all that code with a nullptr.
 2016-01-09 12:20:57 -08:00
Jared Boone
c3167ac27c Missing #includes. 2016-01-09 12:17:17 -08:00
Jared Boone
8fba47b7d8 FIFO in and out indices should be volatile. 
Later code revealed that the receiving core never notices (reads anew) the _in member variable when waiting for the FIFO to be empty (_in == _out).
 2016-01-07 10:53:27 -08:00
Jared Boone
7710b2d1fa ChannelSpectrumConfig message subsumes FIFONotify. 
Separate channel spectrum config from spectrum data. This will permit sending config info only when necessary.
Use type information of ChannelSpectrum to statically define number of FFT bins elsewhere.
TODO: Posting configuration message way too often. Fixing that is the next step.
 2016-01-06 12:10:30 -08:00
Jared Boone
ba33cc737d Transmit DisplayFrameSync message, handle in WaterfallSpectrum. 
More kludginess, especially around initialization and timing. But it addresses the flickering lines of pixels at the bottom of the waterfall scroll area!
 2016-01-06 11:36:57 -08:00
Jared Boone
aaa1bc3a09 Transmit ChannelSpectrum data through separate FIFO. 
Allows handling of data during LCD "vertical retrace", independent of other baseband->application messages. A bit kludgy still...
 2016-01-06 11:34:41 -08:00
Jared Boone
2cd28fcc0c Make FIFO::in() more consistent with other functions. 2016-01-06 11:04:25 -08:00
Jared Boone
4059e9cebe Reintroduce FIFO in/out for templated FIFO element type. 2016-01-06 11:01:02 -08:00
Jared Boone
b05923eab6 Change FIFO is_full() to make more sense. 2016-01-06 10:58:42 -08:00
Jared Boone
dcb2c46c57 Add wideband FM spectrum waterfall. 2016-01-04 17:27:18 -08:00
Jared Boone
36021689f9 Remove commented, dead code. 2016-01-04 15:42:19 -08:00
Jared Boone
73671ca5f6 Update sample rate and buffer size comments in execute() methods. 2016-01-04 15:41:49 -08:00
Jared Boone
c1e5577669 Eliminate duplicate code between event_m4.hpp, event.hpp. 
event.* is common code, _m0 and _m4 contain specific event mask definitions.
 2016-01-04 12:54:05 -08:00
Jared Boone
229c1e9a3c Move M4 MAPP IRQ handler to be with the event handler class. 
event.[ch]pp and event_m4.[ch]pp are looking almost the same now...
 2016-01-04 12:44:28 -08:00
Jared Boone
0fe5409357 Move M4TXEVENT interrupt control into event handler run(). 2016-01-04 12:15:35 -08:00
Jared Boone
69b258cc2b Consolidate event handler code, including IRQ. 2016-01-04 12:15:10 -08:00
Jared Boone
b058c0fe00 Consolidate M0-specific code. 2016-01-04 12:07:30 -08:00
Jared Boone
a27489eb21 Consolidating M4-specific saturation flag code. 2016-01-04 12:00:52 -08:00
Jared Boone
b42d3cc9d5 Move BasebandStatsCollector code into .cpp, as much as possible. 
Still have template for callback, but hopefully will mitigate bloat when BasebandStatsCollector is used in multiple places.
 2016-01-04 11:49:39 -08:00
Jared Boone
6d3cdb9bbf Separate template/callback code from method code. 
...for more small reductions in code size.
 2016-01-04 11:45:33 -08:00
Jared Boone
cd3a5afdb1 More templating elimination (MatchedFilter), some #include clean-up. 
592 bytes!
 2016-01-04 11:32:47 -08:00
Jared Boone
e6f69c90f2 Reduce inlining of FIR configuration due to templating. 
80 bytes!
 2016-01-04 11:20:28 -08:00
Jared Boone
359fb6f3c6 ...and more pass-by-reference. 
Another 176 bytes!
 2016-01-04 11:04:28 -08:00
Jared Boone
05a1c22426 More tweaks to pass buffers by reference. 
144 bytes less code!
 2016-01-04 11:00:17 -08:00
Jared Boone
778e2d2381 A little code consolidation -- M0APP IRQ. 2016-01-04 10:12:18 -08:00
Jared Boone
cd17f414b7 ChannelDecimator now unused, remove from Makefile, remove commented code. 2016-01-04 09:49:48 -08:00
Jared Boone
168bd02dea Move AudioStatsCollector code into .cpp. 2016-01-04 09:25:43 -08:00
Jared Boone
c5b234d9f6 Remove BasebandProcessor virtual method replaced by message. 2016-01-04 09:13:17 -08:00
Jared Boone
222b878629 Use BasebandProcessor::mute_audio(), remove I2S #include dependencies. 2016-01-04 09:07:07 -08:00
Jared Boone
ef6ae8ed94 Add mute_audio() function to baseband processor. 2016-01-04 09:06:17 -08:00
Jared Boone
8fb3ffaedc Reorder squelch code to group things a bit more logically. 2016-01-04 09:01:51 -08:00
Jared Boone
b0855b3c4d Pass buffers by reference to save significant text section code size. 
752 bytes!
 2016-01-03 23:09:06 -08:00
Jared Boone
b03da8d693 Fix calculation of work_audio_buffer item count. 2016-01-03 22:42:40 -08:00
Jared Boone
d9017530c6 Moved baseband temporary buffers back into class member variables. 
Significant performance hit when declaring on stack. C++ wants to initialize std::array or even raw array with element constructors, was resulting in ~7% CPU utilization, for a buffer that was immediately written over anyway.
 2016-01-03 22:31:44 -08:00
Jared Boone
5547782f5a Improve FFT twiddle factor precisions using Python SymPy. 
Python math, numpy, scipy produce values with significant rounding errors.
 2016-01-03 21:02:44 -08:00
Jared Boone
963b6e257a FFT twiddles can be used for all K <= table length. 
Change assert to allow FFTs < 8.
 2016-01-03 20:25:31 -08:00
Jared Boone
54e59cc224 Hard-code K=8 FFT twiddle constants for now. 
So low on baseband RAM! This eliminates the sin_f32() function and table, which is only used in the FFT, for the moment.
 2016-01-03 20:08:26 -08:00
Jared Boone
65dd385c94 Little FFT loop indexing tweak. 2016-01-03 17:47:08 -08:00
Jared Boone
78992c2f8d Adjust default FM squelch threshold. 2016-01-03 17:05:00 -08:00
Jared Boone
8adaddac5f Make FM squelch runtime-configurable. 2016-01-03 17:03:16 -08:00
Jared Boone
86cf967464 Simplify FM demodulator class. Remove duplicate code. 2016-01-03 16:58:36 -08:00
Jared Boone
10bce4b845 Clean up #includes. 2016-01-03 16:58:08 -08:00
Jared Boone
28be223ace Fix for merge-breakage. Argh. 2016-01-03 16:37:47 -08:00
Jared Boone
3f299c74c6 More old GCC fussiness fixes. 2016-01-03 16:32:45 -08:00
Jared Boone
62ee26e763 OK... Nuke list initializations. 2016-01-03 16:28:09 -08:00
Jared Boone
422f6c6960 Don't pass by reference in message constructors. 2016-01-03 16:21:17 -08:00
Jared Boone
b5aa2b205f Implement AMConfigureMessage from M0 to M4. 2016-01-03 14:31:39 -08:00
Jared Boone
f2f7032615 Wideband FM configuration messages from M0. 2016-01-03 13:38:55 -08:00
Jared Boone
317ec53638 Handle NBFM configuration message on M4 processor side. 2016-01-03 12:49:00 -08:00
Jared Boone
7496c2aced Send NBFM configuration message from M0 to M4. 2016-01-03 12:47:22 -08:00
Jared Boone
0497dbf62f NBFM configuration message. 
Allows changing NBFM filter configurations from M0.
 2016-01-03 12:46:21 -08:00
Jared Boone
a5012427d8 Remove little bit of dead code. 2016-01-03 12:45:34 -08:00
Jared Boone
c179b9e1cd Move FIR filter configs to common/, so M0 can use it. 
Planning to pass from M0 to M4 so M4 doesn't need to keep all these different filter configs in text section.
 2016-01-03 12:45:15 -08:00
Jared Boone
39ca6fec62 Transform update spectrum event into message. 2016-01-03 12:05:47 -08:00
Jared Boone
c9f9d97d07 Move BasebandConfiguration message handling into baseband thread. 2016-01-03 11:49:01 -08:00
Jared Boone
fd612dc207 Baseband: Pass unhandled messages to baseband thread, processor. 2016-01-02 22:59:31 -08:00
Jared Boone
07cd99d85d Removing baseband MessageHandlerMap. 
It's a bit heavy (362 bytes smaller with switch/case implementation), hard to access to add/remove handlers, doesn't bubble events like I'd like. (I'm going to bubble events to the baseband processor shortly.)
 2016-01-02 22:54:09 -08:00
Jared Boone
fea5dd536f Move baseband working buffers from member variables to stack. 
It's temporary, after all...
 2016-01-02 12:08:21 -08:00
Jared Boone
e7be7c5121 Comments about IFIR filter taps design parameters. 2016-01-02 10:49:37 -08:00
Jared Boone
410d4d7fc3 Use IFIR decimator for TPMS. 2016-01-02 10:42:40 -08:00
Jared Boone
e720bfb054 Use IFIR decimation for broadcast FM receiver. 2016-01-02 10:35:23 -08:00
Jared Boone
a02bfe55d0 Decimators for wider IFIR output bandwidth. 2016-01-02 10:34:17 -08:00
Jared Boone
096ebe47d8 Turn almost-zeros in TPMS matched filter to actual zeros. 2016-01-02 10:24:49 -08:00
Jared Boone
0e04939439 Broadcast FM de-emphasis using 75us time constant. 2016-01-01 20:56:30 -08:00
Jared Boone
2e90edbf39 Add 30Hz high-pass IIR filter for wideband FM. 2016-01-01 20:55:00 -08:00
Jared Boone
9a0fb2cab7 Rename IIR filter for 300Hz high-pass. 2016-01-01 20:53:11 -08:00
Jared Boone
ff05833b02 Use new decimation filters in AIS processor. 2016-01-01 13:20:02 -08:00
Jared Boone
316d5d433b Move IIR code into .cpp file. 
A few hundred more text section bytes saved.
 2015-12-31 10:52:28 -08:00
Jared Boone
9fb22dfd1f Reduce type size for int16_t squared values. 2015-12-31 10:09:42 -08:00
Jared Boone
ef37bbd851 Small FM squelch simplification. 2015-12-31 10:08:41 -08:00
Jared Boone
0962343190 Use decimation variable, not hard-coded value. 
Break in form from NBFM code.
 2015-12-30 12:20:25 -08:00
Jared Boone
7de80edcd3 Move baseband FIR filter defs to common file. 
They will likely be shared with multiple decimators/demodulators.
Also added normalized filter pass/stop values to each set of taps.
 2015-12-30 12:19:42 -08:00
Jared Boone
3db0820b54 Remove LOCATE_IN_RAM from DMA IRQ handler 
Not needed for M4, was causing code to be located in data RAM, and veneers to jump between code and data RAM. Reclaimed a few hundred bytes of code RAM.
 2015-12-29 11:24:23 -08:00
Jared Boone
bbfcca8ec0 Rebake of AM, NFM demodulators -- more flexible filtering/configuration. 
Also make SpectrumCollector dynamically configurable.
Add deemphasis filter to NFM.
 2015-12-29 11:02:07 -08:00
Jared Boone
df593c2f0f Run codec at 1 x baseband sample rate. Do not use CPLD decimator. 
Codec performance appears to be unaffected by <8MHz sample rate. Saves a bit of power, eliminates dependency on CPLD decimation feature.
 2015-12-29 10:55:55 -08:00
Jared Boone
549e5b9ddc Unrolled FIR filters for more flexible baseband filtering (using IFIR technique). 2015-12-29 10:48:29 -08:00
Jared Boone
87c9772128 More M4 instruction wrappers, with vector typed arguments. 2015-12-28 16:52:10 -08:00
Jared Boone
f74e6690cb Utilize class types for member variables -- slightly more generic. 2015-12-28 16:51:34 -08:00
Jared Boone
9505d367c3 Add SMMULR "intrinsic". 2015-12-28 16:50:01 -08:00
Jared Boone
90cd2a6794 Improve argument and retval types for my M4 SIMD intrinsics. 2015-12-28 16:49:31 -08:00
Jared Boone
8453741252 Saturate IIR filter output to int16_t. 2015-12-28 16:33:26 -08:00
Jared Boone
7ec1a1f85b Move comment about FM squelch IIR filter. 2015-12-28 16:24:43 -08:00
Jared Boone
ef7aeaafa9 Tweak (and document!) audio HPF IIR. 2015-12-28 16:01:26 -08:00
Jared Boone
4ee0385530 Add FM class default constructor. 
For classes that configure FM demodulation at runtime.
 2015-12-28 15:51:20 -08:00
Jared Boone
4910bacfa2 Un-comment angle_precise(). Not used, but no reason to comment out. 2015-12-28 15:50:19 -08:00
Jared Boone
49215c3ae6 Remove garbage DSP filter code. 2015-12-28 15:49:47 -08:00
Jared Boone
ccc3402869 Add complex32_t type. 2015-12-28 10:14:35 -08:00
Jared Boone
dc86db5b87 Reminder to my future self to not over-optimize complex conjugate multiply. 2015-12-28 10:12:40 -08:00
Jared Boone
b8726b6ecf Un-bitfield PinConfig, GCC 5 didn't like it. 
And GCC 4.9 was very touchy about it. Attempts to fix by other means broke MAX2837 register readback (but not writing?). It suggests there might be a deeper issue -- setup/hold timing?
 2015-12-24 10:36:26 -08:00
Jared Boone
5ace32a1ee Fix inaccurate comment. 2015-12-20 13:33:08 -08:00
Jared Boone
bddd26d557 Perform frequency-domain windowing of spectrum. 
Reduces sidelobes a bit, improves apparent resolution. Avoids windowing (more RAM and CPU) in baseband.
 2015-12-20 13:31:00 -08:00
Jared Boone
b38338efc0 Keep MAX2837 in standby so temperature can be read. 
I think this won't significantly impact power consumption.
 2015-12-17 20:59:21 -08:00
Jared Boone
1146d1fa06 Clean up temperature sensor rendering. 2015-12-17 20:36:58 -08:00
Jared Boone
188f692195 Center temperature graph in view. 2015-12-17 12:18:25 -08:00
Jared Boone
c3116eac63 Use reference to temperature logger, more concise. 2015-12-17 12:16:26 -08:00
Jared Boone
c92138f4b3 Extract calculation of temperature from raw sensor value. 2015-12-17 12:14:28 -08:00
Jared Boone
146a06b0d1 Method to read TemperatureLogger record capacity. 2015-12-17 12:12:22 -08:00
Jared Boone
17d405ccec Weird syntax burp on my part. 2015-12-17 10:30:40 -08:00
Jared Boone
b65cd72a68 Remove some pointless GCC-isms. 2015-12-17 10:12:03 -08:00
Jared Boone
3151100e50 Correct aesthetic typo in MAX2837 register defaults. 2015-12-16 22:37:55 -08:00
Jared Boone
86edf01def Quick and dirty temperature logger, debug view of temp vs. time. 2015-12-16 22:36:51 -08:00
Jared Boone
750506b33e Move more code from .hpp to .cpp. 2015-12-16 22:35:26 -08:00
Jared Boone
d34499d920 Remove ui::BasebandBandwidthField. 2015-12-16 22:29:29 -08:00
Jared Boone
5408eb1042 Nuke duplicate peripheral pointer constants for C++ 
Turns out the reinterpret_cast idiom is no longer kosher in the standard.
 2015-12-16 21:21:45 -08:00
Jared Boone
7a4604e24e Move code out of ui_spectrum.hpp. 2015-12-16 19:33:30 -08:00
Jared Boone
f204a58d24 WM8731 header clean-up. 2015-12-14 14:03:17 -08:00
Jared Boone
552bba47ea Move a lot of WM8731 functions to .cpp. 2015-12-14 13:57:45 -08:00
Jared Boone
fa3eaf0820 Disable audio codec wait-for-zero-crossing volume change mode. 
This may explain (now unreproduceable) issue where UI volume changes weren't always changing the gain on the audio codec.
 2015-12-14 12:26:41 -08:00
Jared Boone
4ce27f51d4 Add WM8731 registers view. 2015-12-14 12:09:31 -08:00
Jared Boone
24d60a11e3 Add WM8731.read() for cached values. 2015-12-14 12:09:01 -08:00
Jared Boone
ee3a77f32c Center RegistersWidget painting. 2015-12-14 11:47:43 -08:00
Jared Boone
56c3167156 Move RegistersWidget/Views methods to .cpp. 2015-12-14 11:30:24 -08:00
Jared Boone
2ee072aa7b Invert register number column colors in RegistersWidget. 2015-12-14 11:24:48 -08:00
Jared Boone
a340cbb74b Make NavigationView an implicit first argument to any instance pushed onto nav stack. 2015-12-14 11:18:59 -08:00
Jared Boone
0828c66b8a Move default constructor to .hpp. 2015-12-14 11:12:12 -08:00
Jared Boone
969d9bd070 Use std::unique_ptr inside NavigationView. 2015-12-14 11:11:49 -08:00
Jared Boone
18c4672ba2 Clean up navigation stack alloc/delete sequence. 2015-12-14 10:52:08 -08:00
Jared Boone
97f29f8336 Clean up UI navigation push constructor scheme. 2015-12-14 10:22:42 -08:00
Jared Boone
a1aa6ecdbf Eliminate per-device Views and RegisterWidgets, virtual methods. 
Nice code size improvement, despite supporting three device register sets instead of just one.
 2015-12-13 21:28:39 -08:00
Jared Boone
a0fbfcf6a2 Consolidate code and improve reuse between RegistersWidgets. 2015-12-13 13:22:09 -08:00
Jared Boone
94805285e2 Remove RegisterMap accessors. 2015-12-13 13:20:22 -08:00
Jared Boone
2fe1285c11 Un-inline register read/write functions. 2015-12-13 13:18:37 -08:00
Jared Boone
041e211841 Expose register read functions. 2015-12-13 13:18:05 -08:00
Jared Boone
74aa2112f4 Add Si5351C register view, make more space in all register views. 2015-12-13 12:34:51 -08:00
Jared Boone
5df1665994 Class divider comments. 2015-12-13 11:50:55 -08:00
Jared Boone
32108a8229 Field for register set name was too narrow. 2015-12-13 11:50:31 -08:00
Jared Boone
c7d49eb190 Expose MAX2837 registers, show registers in debug view. 2015-12-13 11:50:06 -08:00
Jared Boone
a6fbd1c5ef Make DebugRFFCView into generic RegistersView. 2015-12-13 11:48:39 -08:00
Jared Boone
9170c66bc0 Remove unused function declaration. 2015-12-12 11:37:59 -08:00
Jared Boone
b058d609eb Move packet timestamping into baseband. 
Now reads the RTC peripheral at the end of each received packet.
TODO: Improve resolution to milliseconds or better.
TODO: Work back from end of packet to compute timestamp for beginning of packet.
TODO: Reuse ChibiOS RTC code, which isn't used now because ChibiOS on M0 core is responsible for RTC configuration, and including ChibiOS RTC API on M4 will also try to initialize/manage the peripheral.
 2015-12-12 11:37:30 -08:00
Jared Boone
c825a027b2 Comments regarding threading concerns, future refactoring. 2015-12-11 17:29:58 -08:00
Jared Boone
d1637db2fc Reorder methods in source file to indicate call order. 2015-12-11 17:17:12 -08:00
Jared Boone
088f60f2bc Extract spectrum collector from BasebandProcessor. 
Code size improvement, and less confused classes. :-)
 2015-12-11 12:26:45 -08:00
Jared Boone
75b1cc25ff Missing lambda capture. 2015-12-10 21:21:42 -08:00
Jared Boone
211d1d19ea Move Thread WORKING_AREAs out of classes. 
Limited where and how you could instantiate the classes.
 2015-12-10 21:01:44 -08:00
Jared Boone
a3bab9126d Remove commented, dead code. 2015-12-10 20:13:27 -08:00
Jared Boone
ca7e0f1e20 Remove #include of ChibiOS test.h. 
Would be appropriate if writing a test case project. Someday...
 2015-12-10 18:28:19 -08:00
Jared Boone
d895a54078 Almost finished moving around baseband init/shutdown code. 2015-12-10 17:33:44 -08:00
Jared Boone
f90e5bab6b Push more init/shutdown code out of main(). 2015-12-10 17:29:16 -08:00
Jared Boone
f3979a1d65 Move event initialization code into EventDispatcher. 2015-12-10 17:25:55 -08:00
Jared Boone
95fe57c9aa Consolidate EventDispatcher client code. 2015-12-10 17:20:10 -08:00
Jared Boone
4b3fa25cef Move sending of ShutdownMessage into shutdown(). 
Crazy, I know.
 2015-12-10 17:19:18 -08:00
Jared Boone
6328efb70b Move more baseband main() code into EventDispatcher. 
EventDispatcher might be ripe for a refactor or rename.
 2015-12-10 17:10:28 -08:00
Jared Boone
818790e734 Move init/configure details into RSSI/BasebandThread classes. 2015-12-10 16:33:40 -08:00
Jared Boone
ed25f65e8b Move BasebandThread init into main(). 2015-12-10 16:29:50 -08:00
Jared Boone
13e4b41c1e Trivial clean-up. 2015-12-10 16:15:18 -08:00
Jared Boone
255c568f9e Make some Baseband/RSSIThread members private/const. 2015-12-10 16:14:30 -08:00
Jared Boone
ded33ebabd Extract RSSIThread to separate files. 2015-12-10 16:07:21 -08:00
Jared Boone
e998014e57 Extract BasebandThread, ThreadBase to separate files. 2015-12-10 15:53:54 -08:00
Jared Boone
2808efac4c Remove unused lambda captures. 2015-12-10 15:27:33 -08:00
Jared Boone
e8cf0b8de7 Clean up baseband/main.cpp #includes. 2015-12-10 15:22:20 -08:00
Jared Boone
a7afc58cf8 More consistent use of pass-by-ref, const in baseband code. 2015-12-10 15:18:02 -08:00
Jared Boone
82f367dfea Move code into BasebandThread. 2015-12-10 14:41:07 -08:00
Jared Boone
83bf2a9a36 Tweak BasebandConfiguration constructors to avoid surprise type conversions. 2015-12-10 14:40:48 -08:00
Jared Boone
f369885062 Extract processor factory function. 
A small code size reduction. I tried using std::unique_ptr, but code bloated between 150 and 400 bytes!
 2015-12-10 13:21:27 -08:00
Jared Boone
ef315f0d92 Const/pass-by-reference a bunch more baseband stuff. 2015-12-10 12:36:12 -08:00
Jared Boone
3ed77af0c1 BasebandProcessor: Streamline construction of some messages. 2015-12-10 12:25:11 -08:00
Jared Boone
77aceaaf56 More BasebandProcessor pass by reference. 2015-12-10 12:17:40 -08:00
Jared Boone
14f24d8584 Move BasebandProcessor message.push() from dedicated methods to existing lambdas. 2015-12-10 12:04:43 -08:00
Jared Boone
98abc4bba8 Create baseband statistics messages on stack. 
Code size shrank ~200 bytes with this change.
 2015-12-10 11:57:57 -08:00
Jared Boone
3bed016128 BasebandProcessor interface change to pass references, not copies. 2015-12-10 11:56:16 -08:00
Jared Boone
4d52f73f6a Move Manchester to common/. 2015-12-10 11:28:18 -08:00
Jared Boone
eb1402764e Move ERT packet type to its rightful place. 
No longer mixed up with Message types.
 2015-12-08 16:19:27 -08:00
Jared Boone
7de187e267 Move ERT, AIS packet code to common/. 2015-12-08 16:08:20 -08:00
Jared Boone
2e81d1f5b7 Separate ERT packet and UI code. 2015-12-08 16:04:48 -08:00
Jared Boone
644d3837ff Consolidate AIS Packet types. 2015-12-08 15:54:35 -08:00
Jared Boone
3e0acc9988 AIS-related namespace cleanup. 2015-12-08 15:53:17 -08:00
Jared Boone
37d7d5b273 Separate AIS packet and formatting code from app code. 2015-12-08 15:49:20 -08:00
Jared Boone
218d81fc60 Rename all the app .cpp/.hpp to have app name first. 
Larger refactoring of filenames and namespaces imminent!
 2015-12-08 15:28:33 -08:00
Jared Boone
d0d97e92cb Rename ::Packet to baseband::Packet. Remove IPC packet types. 2015-12-08 15:15:51 -08:00
Jared Boone
280acfd227 First commit of AIS data scroller. 
It's weird and buggy right now, but I think I can make it work sensibly.
 2015-12-08 14:16:36 -08:00
Jared Boone
90a7327cd5 Clean up FieldReader and BitRemap types. 2015-12-08 14:15:15 -08:00
Jared Boone
31fdf026f2 constexpr a bunch of stuff. 2015-12-08 13:47:52 -08:00
Jared Boone
0c1c0da8a5 AIS: More simplifying of packet length/validation code. 2015-12-08 13:38:40 -08:00
Jared Boone
af74daf092 AIS Packet refactor, consolidating duplicate packet length code. 2015-12-08 11:14:00 -08:00
Jared Boone
7cded79b59 Clean up CRC class/interface, make more like boost::crc_basic. 2015-12-08 10:35:54 -08:00
Jared Boone
c38beb70e5 Only show ERT packets that pass CRC check. 2015-12-07 15:35:24 -08:00
Jared Boone
b61ed7dce2 Clean up ERT CRC code, add IDM CRC checking. 2015-12-07 15:32:26 -08:00
Jared Boone
ee1eadce5b Fix incorrect ERT packet length(). 
Was returning number of symbols before Manchester decoding. Oops.
 2015-12-07 15:31:42 -08:00
Jared Boone
f1b45d4e7f Reinstate logging of ERT packets. 2015-12-07 15:31:01 -08:00
Jared Boone
a2df8ea599 Simplify excessively idiomatic C-ism. 2015-12-07 15:29:43 -08:00
Jared Boone
bd33e652ea Abstract packet type/implementation details. 2015-12-07 12:35:05 -08:00
Jared Boone
b9ea7fa786 ERT CRC checking for SCM packets. 
IDM coming as soon as I can address packet truncation...
 2015-12-07 12:27:09 -08:00
Jared Boone
1c01f54717 Widen ERT baseband filter to 2.5MHz. 
It appears this will not negatively impact the noise floor vs. benefit of receiving additional channels (0.2MHz spacing).
 2015-12-07 09:59:41 -08:00
Jared Boone
2d0052fb14 Generalize ERT offset tracking a little. 2015-12-07 09:58:08 -08:00
Jared Boone
b9643dc988 Clean up ERT packet type notation. 
Still not great, but at least repeated code is reduced.
 2015-12-06 15:47:04 -08:00
Jared Boone
9e004d4754 Move ERT packet type determination earlier. 
It'll eventually move into baseband.
 2015-12-06 15:36:23 -08:00
Jared Boone
2a55030d4e Use ert::Packet for basic packet decoding. 2015-12-06 15:32:21 -08:00
Jared Boone
51026609ce ert::Packet parser. 2015-12-06 15:31:17 -08:00
Jared Boone
5cfd44a546 Manchester decoded symbol operator| for accessing bit value. 2015-12-06 15:22:52 -08:00
Jared Boone
85ac3fa4ac Show selected item at bottom of visible list even if it should be off-screen. 
Not convinced this is the most intuitive approach, but it's better than before.
 2015-12-06 09:50:53 -08:00
Jared Boone
0f23736253 Whoops, don't match selected_key inside draw_entry. 2015-12-05 20:25:05 -08:00
Jared Boone
c4ad2ffe1b Extract AIS RecentEntry painting into separate method. 
Small steps in a larger refactor, and better selected-item-scrolls-off-the-bottom behavior.
 2015-12-05 20:15:30 -08:00
Jared Boone
8fce9378cc Extract entry list truncation. 2015-12-05 19:52:12 -08:00
Jared Boone
9791d64b50 AISView RecentEntry UI selection by encoder. 2015-12-05 14:24:41 -08:00
Jared Boone
27684069c5 Track when AISView has focus. 2015-12-05 14:23:53 -08:00
Jared Boone
1c191bcd4f Rename AISView::log to on_packet. 2015-12-05 14:22:35 -08:00
Jared Boone
64b9bfa35f Make MMSI-formatting function. 
Only render nine digits, left zero pad.
 2015-12-03 22:09:06 -08:00
Jared Boone
4205793b54 Clean up narrowing conversion warning. 2015-12-03 20:58:17 -08:00
Jared Boone
fbd077e91d Restore receiver mode when View is displayed. 
Needs refactor because on_modulation_changed() doesn't change the modulation so much as the "app" or receiver mode.
 2015-12-03 20:54:18 -08:00
Jared Boone
42d13e6713 ui::OptionsField match option value by ==, not >=. 
I think I used >= to match baseband filter bandwidth, but then the options would all have to be in increasing order to do the right thing, which is not what another developer would expect!
 2015-12-03 20:53:14 -08:00
Jared Boone
2a2e65abad Reserve length of AIS packet text std::string. 2015-12-03 20:34:30 -08:00
Jared Boone
3644bfd983 AISView displays list of most recent packets -- MMSI and name or call sign. 
Formerly scrolling console of packets.
 2015-12-03 20:34:02 -08:00
Jared Boone
0cad2847f8 LogFile pass references to reduce code size a bit. 
Apparently the compiler isn't optimizing away copies in places I thought it would.
 2015-12-03 14:08:06 -08:00
Jared Boone
bb3cb6f080 Push packet timestamping earlier in packet handling. 
Ideally, it'd get pushed back into baseband, and baseband would correct for the length of the packet (based on preamble/access code match timestamp minus preamble/access code duration) to give the exact time the packet started.
 2015-12-03 14:04:20 -08:00
Jared Boone
0909cdb31e AIS: Add MMSI type. 2015-12-02 22:39:05 -08:00
Jared Boone
ad22eab3d2 Fix ERT console lack of CRLF. 2015-12-02 14:12:35 -08:00
Jared Boone
bfcd25d857 LogFile puts timestamp before entry, CRLF after. 2015-12-02 14:05:25 -08:00
Jared Boone
76845c4335 Extract to_string_* functions from ui_widget. 2015-12-02 13:38:17 -08:00
Jared Boone
d8c59e2ce2 Zero pad years < 1000 to four digits. 2015-12-02 13:23:29 -08:00
Jared Boone
b8ee19f8e6 AIS: Large refactor to separate packet decode from UI/log formatting. 2015-12-02 12:16:39 -08:00
Jared Boone
4baf2a06f2 Move ais_baseband code to app_ais. 2015-12-02 09:31:14 -08:00
Jared Boone
57aed55cc7 Extract LogFile, add (dumb) logging to ERT, AIS apps. 2015-12-01 22:39:27 -08:00
Jared Boone
29f2d0e50a Move app_spectrum_analysis.hpp code to .cpp. 2015-12-01 22:07:17 -08:00
Jared Boone
d15afc9f7d Move app_analog_audio.hpp code to .cpp. 2015-12-01 22:04:04 -08:00
Jared Boone
11e8456da0 Move app_ert.hpp code to .cpp. 2015-12-01 21:59:47 -08:00
Jared Boone
4c3b557064 Move app_tpms.hpp code to .cpp. 2015-12-01 21:53:28 -08:00
Jared Boone
61dc25e132 Move more Manchester code from .hpp to .cpp. 2015-12-01 21:47:21 -08:00
Jared Boone
1aa1286ec1 Push app_ais.hpp code into .cpp. 2015-12-01 21:44:13 -08:00
Jared Boone
ac2b62a8a7 Extract "apps". 2015-12-01 21:30:52 -08:00
Jared Boone
519f8cfebc Extract Manchester decoder, formatter. 2015-12-01 21:28:53 -08:00
Jared Boone
9a5655ad0e Removed extra methods. 2015-12-01 21:27:51 -08:00
Jared Boone
eb10532931 Remove SD card statuc handler in ReceiverView. 
Wasn't doing anything useful, and probably won't.
 2015-12-01 21:27:14 -08:00
Jared Boone
e9bf500bfc Move ReceiverMode enum to receiver_model.hpp 2015-12-01 21:00:31 -08:00
Jared Boone
74d6518ea1 Rename AudioModel, AudioView to Analog*. 2015-12-01 20:55:36 -08:00
Jared Boone
c1d59b644d Move baseband configuration to receiver mode classes. 
Factor out the terrible switch() and clean up redundant code.
 2015-12-01 20:25:57 -08:00
Jared Boone
c0db15f3e5 Replace receiver mode ordinals with enum. 2015-12-01 19:52:48 -08:00
Jared Boone
f15716a06b Move TPMS logging to file into TPMSModel class. 2015-12-01 17:42:52 -08:00
Jared Boone
f49cdfdd99 Refactor digital mode handlers into Model and View classes. 2015-12-01 17:29:54 -08:00
Jared Boone
ec977ccd05 Implement console "\n" -> crlf() behavior. 2015-12-01 17:28:22 -08:00
Jared Boone
32319ddf9f Manchester decoder bounds checking. 
Return error symbol if reading past source data.
 2015-12-01 16:05:23 -08:00
Jared Boone
8461b0c94e Manchester formatting to next largest length in nibbles. 
Prior code insisted on next largest byte, for no good reason.
 2015-12-01 15:50:07 -08:00
Jared Boone
c657ee3558 Clean up handling of bool -> int. 
C++ standard says false -> 0, true -> 1.
 2015-12-01 15:45:59 -08:00
Jared Boone
641b972b3e Type and name clean-up of Manchester formatter. 2015-12-01 15:41:51 -08:00
Jared Boone
7b9ba696e5 Reserve strings length before formatting Manchester data. 2015-12-01 15:36:09 -08:00
Jared Boone
810c65dd9c Return Manchester formatted output in struct. 2015-12-01 15:31:59 -08:00
Jared Boone
d75f601b54 Manchester decoder into separate class. 
Now operates directly on data, doesn't make a new pair of data/error bitsets.
 2015-12-01 12:05:42 -08:00
Jared Boone
426295b93e Remove unnecessary Manchester decode operation. 2015-12-01 11:50:29 -08:00
Jared Boone
82ff45860e Add basic ERT (OOK) utility meter reception. 
Extracted the Manchester formatting function for use in ERT, now also returns an indication of bits in error.
 2015-12-01 11:24:48 -08:00
Jared Boone
0c36a74351 Add SD card status view to receiver UI. 2015-12-01 10:45:34 -08:00
Jared Boone
c70d95dcbe Remove SDCardStatusMessage, replace with Signal, extract to separate files. 2015-12-01 10:38:35 -08:00
Jared Boone
600295f0db Add Signal for callbacks within a process (code executing on one core). 2015-12-01 10:27:46 -08:00
Jared Boone
42104d217a Broaden SD card status detail in message. 2015-11-29 15:50:58 -08:00
Jared Boone
5928086fd9 Simplify SD card mount status code. 2015-11-29 15:37:24 -08:00
Jared Boone
435824e9b5 Clean up buffer_t constructors. 2015-11-20 11:21:31 -08:00
Jared Boone
d96379dc9c Remove extra semicolons. 2015-11-20 11:11:14 -08:00
Jared Boone
600a983d5c Clean up complex<int16_t> -> complex<float> casting. 2015-11-20 11:01:41 -08:00
Jared Boone
85e984ed3b Clean up complex<int8_t> -> complex<float> casting. 2015-11-19 12:42:35 -08:00
Jared Boone
060da5d227 Add ChannelDecimator decimate by 2 and no-shift options. 2015-11-19 12:24:20 -08:00
Jared Boone
ccd64f3cd9 Add function for c8->c16 decimate by two without fs/4 shift. 2015-11-19 12:20:20 -08:00
Jared Boone
8967f0eaa1 Move common matchers to PacketBuilder. 2015-11-16 10:33:50 -08:00
Jared Boone
9900c29283 Deepen BitPattern and BitHistory to 64 bits. 2015-11-16 10:33:08 -08:00
Jared Boone
4d6877ab15 Extract FieldReader to separate header so it can be reused. 2015-11-16 10:31:36 -08:00
Jared Boone
77199fb3dd Add sdcDisconnect() to avoid HackRF mode entry crash if SD card is connected. 2015-11-13 10:55:52 -08:00
Jared Boone
6f09cf21f8 Move sdcStop() call to have symmetry with sdcStart(). 2015-11-13 10:55:08 -08:00
Jared Boone
0a9da7a1d3 Store tuned frequency and modulation characteristics in TPMS log. 2015-11-11 11:56:50 -08:00
Jared Boone
8e4e33f74e Don't show TPMS Manchester errors on LCD, truncate data to not wrap. 2015-11-11 11:56:20 -08:00
Jared Boone
19f352fa13 Log TPMS Manchester encoding errors. 2015-11-11 11:19:17 -08:00
Jared Boone
1770dff522 Finish object-izing Baseband and RSSI threads. 2015-11-11 10:54:36 -08:00
Jared Boone
4f82524e77 Another default constructor. 2015-11-11 10:30:35 -08:00
Jared Boone
d9106b6f44 Start object-ization of RSSI thread. 2015-11-11 10:11:37 -08:00
Jared Boone
19c89def75 Start to object-ize the baseband thread function. 2015-11-11 10:02:06 -08:00
Jared Boone
2c64454172 More constructor style clean-up. 2015-11-11 09:35:28 -08:00
Jared Boone
d02698a6de Apparent bug where min/max aren't initialized from value inside the buffer bounds. 
The fix is less than ideal, it assumes that an incoming buffer length is always >= 1.
 2015-11-11 09:30:15 -08:00
Jared Boone
ebf103363c Constructor style clean-up. 2015-11-11 09:16:20 -08:00
Jared Boone
db416fd670 Basic TPMS logging to a SD card file. 2015-11-10 15:31:46 -08:00
Jared Boone
ed585d2c15 Enable FatFs string functions. 2015-11-10 15:30:43 -08:00
Jared Boone
987ea3555d SD card detection and filesystem mounting. 2015-11-10 15:24:42 -08:00
Jared Boone
9f6c495fef Add TPMS initial demodulator implementation. 
Right now, 2FSK, 19200 baud, +/-38400Hz deviation. No effort is made to check CRC/checksums or decode packets.
 2015-11-10 15:19:56 -08:00
Jared Boone
6cdef7026d Remove spectrum window-presum due to lack of code RAM. 2015-11-10 15:16:27 -08:00
Jared Boone
e6351ca066 Improve comment accuracy. 2015-11-10 15:11:19 -08:00
Jared Boone
99871dcb84 Move a few member variables to stack/constants. 2015-11-10 15:10:52 -08:00
Jared Boone
791b2a9762 Remove now-unused FSKConfiguration message. 2015-11-10 15:07:20 -08:00
Jared Boone
981c2fbfbd Complete FSKProcessor's trip to being AISProcessor. 2015-11-10 15:04:38 -08:00
Jared Boone
111a5f10c0 Add some baseband constructors. 
Some of them I think I took out earlier...
 2015-11-10 14:04:50 -08:00
Jared Boone
add6171410 Move BasebandStatistics from heap to stack. 2015-11-10 13:59:17 -08:00
Jared Boone
0789d50fdf Rework BitHistory, BitPattern, PacketBuilder. 
Templatize PacketBuilder to optionally bit unstuff, and have flexible packet termination behavior.
 2015-11-09 14:38:09 -08:00
Jared Boone
0b522abbc1 Rename AIS packet handler variables for consistency with spec. 2015-11-09 14:35:06 -08:00
Jared Boone
850c847bbf Trap attempts to register more than one message handler at a time. 2015-11-09 11:57:38 -08:00
Jared Boone
47a3ffb15a Insulate ui::Context a bit from its clients. 
Add accessor methods.
 2015-11-09 11:56:40 -08:00
Jared Boone
85383e488b std::fma not necessary with proper compiler options. 
std::fma isn't available on Ubuntu 15.04 arm-gcc, apparently. Hence my reviewing this code...
 2015-11-08 16:33:32 -08:00
Jared Boone
5dcca89172 FSKProcessor: remove separate channel filter. 
RRC filter alone will do the trick!
 2015-11-07 14:10:44 -08:00
Jared Boone
fc037c739a Comment about correct MatchedFilter usage. 
Because the filter expects a combined translate/rotate and low-pass filter in the taps, the taps must be a multiple of the translate sinusoid period.
 2015-11-07 11:27:31 -08:00
Jared Boone
9e694ce836 AIS decoding and really bad UI. 
The decoder needs a serious refactoring/decoupling.
The UI just dumps bits of the received packets into a console window, whcih scrolls too quickly in an AIS-dense area with a good antenna.
 2015-11-06 13:53:04 -08:00
Jared Boone
a366b3ac4f CRC class. 
Has some more efficient code, commented out because I was having trouble getting it to work. However, it may have been due to the particular data I was trying to decode and CRC-validate.
 2015-11-06 13:49:59 -08:00
Jared Boone
ae225e8c3b Further MatchedFilter optimization using algebraic identities and stuff. 
Can't stop premature optimization!!!
 2015-11-06 09:40:05 -08:00
Jared Boone
100761481e Fix inaccurate comment. 2015-11-06 09:40:05 -08:00
Jared Boone
3d5c8056d9 Premature optimization of MatchedFilter::shift_by_decimation_factor(). 2015-11-06 09:40:05 -08:00
Jared Boone
4afcc83873 Mark MatchedFilter::is_new_decimation_cycle() as const. 2015-11-06 09:40:05 -08:00
Jared Boone
3c33e20156 Rename MatchedFilter::decimation_factor. 2015-11-06 09:40:05 -08:00
Jared Boone
7a59823211 Stop computing channel spectrum during FSK demod. 
Data is unused, as screen is displaying decoded packets.
 2015-11-06 09:40:05 -08:00
Jared Boone
ddd34793a6 Default constructors and configure methods for baseband classes. 2015-11-06 09:40:05 -08:00
Jared Boone
5236a858d0 Change Field.read to const. 2015-11-06 09:40:04 -08:00
Jared Boone
a33aa26bf5 Change header guard name. 2015-11-06 09:40:04 -08:00
Jared Boone
51df92a05a Rename baseband_ais -> ais_baseband. 
So that ais_baseband and ais_application filenames can be sorted near each other.
 2015-11-06 09:40:04 -08:00
Jared Boone
26c23dc8a0 Use new FIR decimation in FSK demodulator. 
Reduces FIR calculation effort when output samples are skipped at FIR filter, not after.
 2015-11-06 09:40:04 -08:00
Jared Boone
86b068be62 Early calculation to reduce pressure on registers. 2015-11-06 09:40:04 -08:00
Jared Boone
a074e7d8d8 Remove commented code. 2015-11-06 09:40:04 -08:00
Jared Boone
424c0eac3f FIRAndDecimateBy2Complex: expose decimation_factor, bring work function into class. 2015-11-06 09:40:04 -08:00
Jared Boone
cde15e4271 Generalize fir_and_decimate_by_2_complex_fast. 
Permit decimation_factors other than 2.
Permit tap counts != 64 (but still must be multiple of 8).
Half the amount of tap memory required.
Performance is significantly degraded due to greater flexibility -- most likely due to separate sample buffer shift phase, instead of performing shift during output sample calculation.
 2015-11-06 09:40:04 -08:00
Jared Boone
be78ed657f Remove taps_count template arg for FIRAndDecimateBy2Complex. 
Use heap to allocate samples and taps buffers, so filters of different lengths can be supported.
 2015-11-06 09:40:04 -08:00
Jared Boone
0f73d6061a Remove old decimating FIR code. 2015-11-06 09:40:04 -08:00
Jared Boone
015e5516d5 Update/consolidate AIS RRC matched filter taps. 2015-11-06 09:40:04 -08:00
Jared Boone
be94c9fa9b Switching between waterfall and console mode. 
Also remove an unused Console constructor.
 2015-11-06 09:40:03 -08:00
Jared Boone
d0f35cf89d Rework spectrum/console UI clearing and resetting. 2015-11-06 09:40:03 -08:00
Jared Boone
dc30911e0f Check for widget != nullptr before add/remove child. 2015-11-06 09:40:03 -08:00
Jared Boone
dab801e167 AIS RX tweak of clock recovery constant for better performance. 2015-11-06 09:40:03 -08:00
Jared Boone
58b97dea68 AIS RX performance improved with 32-tap RRC. 2015-11-06 09:40:03 -08:00
Jared Boone
f82fd1f8d7 Tease apart utility.hpp, other header dependencies. 
Trying to get a host-testable FSK demodulator, and finding a lot of M4- and ChibiOS-specific code is getting included. Boo.
 2015-11-06 09:40:03 -08:00
Jared Boone
e049097f49 Remove spurious commented code. 2015-11-06 09:40:03 -08:00
Jared Boone
0a7ac153a7 AIS RRC taps updated, more precision, corrected frequency shift. 2015-11-06 09:40:03 -08:00
Jared Boone
338983e7ae Remove unused negative-shifted RRC filters. 2015-11-06 09:40:03 -08:00
Jared Boone
4aae77f565 MatchedFilter improvements 
Use single set of taps for positive and negative filters.
Reverse taps (since new samples are pushed into buffer from the high end).
Make complex multiply explicit to avoid fancy but irrelevant arithmetic checks.
Compute negative filter from conjugation of positive filter taps.
Move filter power and difference calculations into MatchedFilter.
 2015-11-06 09:40:03 -08:00
Jared Boone
ab28639a3d Use std::move to move samples in buffer. 
Yes, std::rotate works, but it's fancy and does unnecessary work.
 2015-11-06 09:40:02 -08:00
Jared Boone
4141d6fe0f Untemplate MatchedFilter, a different way. 2015-11-06 09:40:02 -08:00
Jared Boone
fe94cfa45a De-std::vector MatchedFilter, was chewing up far too much memory. 2015-11-06 09:40:02 -08:00
Jared Boone
3e9f0971e1 Assert that FSKConfiguration size is the same between application and baseband binaries. 2015-11-06 09:40:02 -08:00
Jared Boone
64ed539554 Change LinearResampler.advance to external use only. 2015-11-06 09:40:02 -08:00
Jared Boone
4ed385d15e Prioritize PacketBuilder found_end_flag() over packet_truncated(). 2015-11-06 09:40:02 -08:00
Jared Boone
c2e7f9a6f4 Shorten AIS training sequence match length. 2015-11-06 09:40:02 -08:00
Jared Boone
d92c962c0c Set MatchedFilter taps with separate method. 2015-11-06 09:40:02 -08:00
Jared Boone
8198db768d Move some MatchedFilter code to .cpp file. 2015-11-06 09:40:02 -08:00
Jared Boone
aff7865c61 Move (some) AIS bits to a separate file. 2015-11-06 09:40:02 -08:00
Jared Boone
7a5100baf1 Enlarge packet payload size 256 -> 1024 bits. 2015-11-06 09:40:01 -08:00
Jared Boone
68250b4d30 Expose weight() of FixedErrorFilter. 2015-11-06 09:40:01 -08:00