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MMDVM
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95 Commits

Author SHA1 Message Date
Geoffrey Merck eac2aa4ac1 Write larger chunks of FM audio to the serial port 2020-05-11 19:02:08 +02:00
Jonathan Naylor 99b853a976 Stop the status timer when leaving TX. 2020-05-11 15:00:53 +01:00
Jonathan Naylor 4a5a260c28 Perform FM mode changing in a more conventional manner. 2020-05-11 13:15:13 +01:00
Jonathan Naylor 89458a2c93 Release to STATE_IDLE under simpler conditions. 2020-05-10 21:25:10 +01:00
Geoffrey Merck 36537c981c Write audio to serial port, blank to high audio, really ignore ext aduio when ext is disabled 2020-05-10 21:59:14 +02:00
Jonathan Naylor 3ad443dc2a Remove the delay when using COS. 2020-05-10 17:13:10 +01:00
Geoffrey Merck 0f51ddd0bd Fix repeater stuck on transmit 2020-05-10 17:18:59 +02:00
Geoffrey Merck 0e8fdb381a Fix State machine not changing state 2020-05-10 09:07:21 +02:00
Jonathan Naylor c04e207821 Insert the missing silence. 2020-05-09 13:10:02 +01:00
Jonathan Naylor 67e0bf02e2 Merge branch 'FM' into FM_Ext 2020-05-09 13:06:32 +01:00
Jonathan Naylor 3bb7cde322 Add input audio delay to match the CTCSS decoder results. 2020-05-09 13:01:02 +01:00
Jonathan Naylor fa29a27695 Ensure all output audio is flushed before leaving FM state. 2020-05-09 12:53:50 +01:00
Geoffrey Merck 05775f0bfa Add RingBuffer Template 2020-05-09 10:57:16 +02:00
Geoffrey Merck 5d45649096 Simplify code 2020-05-09 08:29:31 +02:00
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