131 commits

Author	SHA1	Message	Date
Geoffrey Merck	e91c4417cb	Handle incoming audio	2020-05-09 08:23:02 +02:00
Geoffrey Merck	ff3e6feeb6	Use more explicit names	2020-05-09 08:00:24 +02:00
Geoffrey Merck	0e2a83bc7b	Add incoming network data buffer	2020-05-09 07:57:45 +02:00
Geoffrey Merck	c0aad5effa	Add mising initilizer	2020-05-08 21:47:03 +02:00
Geoffrey Merck	e0234dfc00	Merge remote-tracking branch 'upstream/FM' into FM_Ext	2020-05-08 21:39:18 +02:00
Jonathan Naylor	e30eb3adaf	Reduce the output buffer loading.	2020-05-08 17:18:26 +01:00
Geoffrey Merck	e3a951b33b	Use pointer/masking/shifting for sample unpacking	2020-05-08 17:43:05 +02:00
Jonathan Naylor	9b0fed975c	Buffer output after adding some initial silence.	2020-05-08 15:48:03 +01:00
Jonathan Naylor	e7ff0d1898	Use const uint8_t instead of non-const.	2020-05-08 13:29:50 +01:00
Jonathan Naylor	880df2536d	Add audio packing code.	2020-05-08 12:30:15 +01:00
Geoffrey Merck	9afcf3acc9	Merge remote-tracking branch 'upstream/FM' into FM_Ext	2020-05-08 12:00:36 +02:00
Geoffrey Merck	feff1ee2c7	remove emphasis	2020-05-08 09:04:28 +02:00
Geoffrey Merck	77e0deee76	Make whole FM chain RX level independant	2020-05-08 09:01:00 +02:00
Jonathan Naylor	d7cd7096d0	Add the external audio state machine and the beginnings of the audio ... processing.	2020-05-07 22:39:17 +01:00
Jonathan Naylor	5d1b66dde3	Add the missing functions.	2020-05-07 22:07:58 +01:00
Jonathan Naylor	96364dc189	Add the external audio parameters.	2020-05-07 22:01:48 +01:00
Jonathan Naylor	eb9c0dfd93	Allow for the inversion of COS levels.	2020-05-06 11:34:04 +01:00
Geoffrey Merck	a4ddc2a060	Merge remote-tracking branch 'upstream/FM' into bugfix/STM32F1_POG	2020-05-05 11:02:27 +02:00
Geoffrey Merck	a938c8b708	Reduce buffer size	2020-05-05 10:48:44 +02:00
Jonathan Naylor	aa7a484c7a	Allow the start callsign to occur when the kerchunk timer has latched.	2020-05-04 22:18:51 +01:00
Jonathan Naylor	915be8c279	Calculate the AckMinTime accurately.	2020-05-04 22:06:57 +01:00
Jonathan Naylor	4feca3c5b7	Clock the timers seperately.	2020-05-03 13:08:33 +01:00
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
Jonathan Naylor	5b32fecc0a	Remove the pre- and de-emphasis and the downsampler.	2020-04-30 11:39:04 +01:00
Jonathan Naylor	cc785e3225	Revert "Change emphasis time constant to 750µS"	2020-04-30 11:23:19 +01:00
Geoffrey Merck	69e39e36b0	Change emphasis time constant to 750µS	2020-04-30 10:26:04 +02:00
Jonathan Naylor	b2f33fd4d2	Bump the version date.	2020-04-29 21:51:12 +01:00
Jonathan Naylor	200199c5d4	Reduce the CPU load slightly.	2020-04-29 20:59:48 +01:00
Geoffrey Merck	b23620ede3	Add de and pre emphasis	2020-04-29 20:42:20 +02:00
Geoffrey Merck	626a280d27	Add filter chrachertitics comment	2020-04-29 18:24:15 +02:00
Geoffrey Merck	4b267c2e1e	Move downsampling tap point	2020-04-28 22:35:06 +02:00
Geoffrey Merck	cf18f95a92	Add Downsampling	2020-04-28 21:37:06 +02:00
Jonathan Naylor	dac0f26e5d	Rename RXBoost to RFAudioBoost.	2020-04-28 14:43:40 +01:00
Jonathan Naylor	e8ed77241c	Simplify the calculations.	2020-04-27 12:05:55 +01:00
Geoffrey Merck	93a8e63233	Remove m_rxLevel	2020-04-27 11:26:19 +02:00
Geoffrey Merck	4ffaa62855	Move division to CTCSSRX, change sample unscaling to 1/rxLevel	2020-04-27 11:16:06 +02:00
Jonathan Naylor	f9530ee82a	Pass the RX level to the FM controller.	2020-04-26 22:01:11 +01:00
Geoffrey Merck	6824d5662a	Remove dependency to IO in CTCSSRX	2020-04-26 12:24:05 +02:00
Jonathan Naylor	b963b2b848	Add optional over deviation blanking.	2020-04-25 22:32:10 +01:00
Jonathan Naylor	4fe1c11250	Remove memory leak and other configuration funnies.	2020-04-25 17:29:10 +01:00
Jonathan Naylor	6ac6deba10	Add two more FM parameters.	2020-04-25 15:17:11 +01:00
Jonathan Naylor	33f88344c3	Run the holdoff timer permamnently.	2020-04-24 12:15:58 +01:00
Geoffrey Merck	2057ef5206	clean up	2020-04-24 09:40:06 +02:00
Geoffrey Merck	5c2659deaa	Add FM filtering	2020-04-24 09:40:06 +02:00
Geoffrey Merck	4f9d5a8c70	3rd order IIR	2020-04-24 09:40:06 +02:00
Geoffrey Merck	8ecd8b67f4	Using 2 stage IIR filter	2020-04-24 09:40:06 +02:00
Jonathan Naylor	f19009b132	Allow for two levels of the callsign.	2020-04-22 22:10:34 +01:00
Jonathan Naylor	57730d7f81	Implement an efficient FIR filter.	2020-04-22 14:37:23 +01:00
Jonathan Naylor	f936bc6fe8	Use a shorter filter.	2020-04-22 14:15:07 +01:00