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MMDVM
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37 Commits

Author SHA1 Message Date
Jonathan Naylor 81518bf74c Make AX.25, DMR, P25, NXDN and FM selectable at compile time. 2020-11-08 22:23:27 +00:00
Jonathan Naylor 2a001f491d Simplify the CTCSS and Noise Squelch decoders and logic. 2020-07-31 09:20:55 +01:00
Jonathan Naylor 435544f7a1 Add CTCSS hysteresis. 2020-05-12 13:55:30 +01:00
Geoffrey Merck 77e0deee76 Make whole FM chain RX level independant 2020-05-08 09:01:00 +02:00
Jonathan Naylor edddbedd4b Fix compilation issues. 2020-05-02 15:46:36 +01:00
Jonathan Naylor baa4f7aa4c Last minute tidy-ups. 2020-05-02 14:47:43 +01:00
Geoffrey Merck 0a5c496a3a Fix CTCSS value is different when using RXLevel 50 to 99 2020-05-01 17:56:45 +02:00
Jonathan Naylor d08a3690b0 Double the signal level to the CTCSS decoder. 2020-04-27 13:07:03 +01:00
Jonathan Naylor e8ed77241c Simplify the calculations. 2020-04-27 12:05:55 +01:00
Geoffrey Merck 4ffaa62855 Move division to CTCSSRX, change sample unscaling to 1/rxLevel 2020-04-27 11:16:06 +02:00
Geoffrey Merck 028d0cf609 Add q31_t cast 2020-04-26 12:38:23 +02:00
Geoffrey Merck 6824d5662a Remove dependency to IO in CTCSSRX 2020-04-26 12:24:05 +02:00
Geoffrey Merck 103116e410 Add debug essage when CTCSS status changes 2020-04-26 07:26:35 +02:00
Geoffrey Merck d973238596 CTCSS threshold is level agnostic, experimental 
(cherry picked from commit d2d50e21e1)
 2020-04-26 06:58:27 +02:00
Jonathan Naylor bd4096b6be
Revert "Make CTCSS threshold RXLevel and RXBoost agnostic" 2020-04-25 23:48:02 +01:00
Geoffrey Merck 23cf22d87d remove Debug info 2020-04-25 23:07:41 +02:00
Geoffrey Merck d2d50e21e1 CTCSS threshold is level agnostic, experimental 2020-04-25 22:12:16 +02:00
Jonathan Naylor 8c38fdb36d Clean out the CTCSS decoder coefficient before initialising. 2020-04-25 17:37:37 +01:00
Geoffrey Merck 0b27ec5443 Fix STM32F10X compile complaining about duplicate stuff 2020-04-25 08:05:31 +02:00
Jonathan Naylor 103d937152 Remove unneeded line. 2020-04-24 11:52:47 +01:00
Geoffrey Merck 22c40e1d96 Remove bit roation 2020-04-24 09:40:03 +02:00
Jonathan Naylor 7a75db2aeb Remove the bit shift of the sample. 2020-04-23 21:30:41 +01:00
Jonathan Naylor bf5ad25609 A working fixed point Goertzel based on simulations. 2020-04-23 12:36:34 +01:00
Jonathan Naylor 526a53cd8c Use fixed point for the Goertzel algorithm. 2020-04-22 17:40:01 +01:00
Jonathan Naylor 3f1f1d1586 Small tidy-ups. 2020-04-22 14:08:34 +01:00
Geoffrey Merck 63847ebe62 One loop to rule them all ! 
Change CFM::Samples and CFMCTCSSRX::process to be able to process all
stuff in one and only loop.
 2020-04-22 11:04:27 +02:00
Geoffrey Merck 8d340cbfba (almost) One loop to rule all the samples 
Avoid looping over and over the samples. One
 2020-04-21 20:38:02 +02:00
Geoffrey Merck 7befef2f4a Avoid looping samples 2 times, convert each sample on the fly 2020-04-21 18:41:27 +02:00
Jonathan Naylor ae58f8eb64 Don't square the threshold value. 2020-04-20 13:28:07 +01:00
Jonathan Naylor 1aef1a39f2 Revert the CTCSS decoder to floats. 2020-04-19 21:21:10 +01:00
Jonathan Naylor a310bf0547 Adjust the coefficients again. 2020-04-19 19:46:44 +01:00
Jonathan Naylor 6575cba982 Rescale the coefficient. 2020-04-19 17:59:04 +01:00
Jonathan Naylor a17bd9cc1d Don't scale up the sample values. 2020-04-19 17:37:24 +01:00
Jonathan Naylor f7e5c2436c Convert the Goertzel algorithm to Q15 and Q31. 2020-04-19 16:52:11 +01:00
Jonathan Naylor ebdba2bdb9 Convert to using floats. 2020-04-18 16:48:30 +01:00
Jonathan Naylor 6d5b864cba Start the Goertzel development. 2020-04-18 16:07:52 +01:00
Jonathan Naylor c55002534e Rename the Goertzel class to CTCSSRX. 2020-04-18 13:55:34 +01:00