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
