16 Commits

Author	SHA1	Message	Date
Jake-B	fdaa602401	Very rough draft of DDS supporting the Arduio Zero and it's built-in DAC.	2015-08-16 20:17:36 -04:00
Stephen Olesen	4f1c863487	Default refclk now 9600, remove old table and serial debugging.	2015-07-13 18:50:48 -06:00
Stephen Olesen	9bcf52ec64	Update large DDS sine table to use signed integers.	2015-07-05 16:29:27 -06:00
Stephen Olesen	7131e46ff0	Allow refclkOffset to be set on the fly in DDS and the calibration tool.	2015-07-04 18:31:18 -06:00
Stephen Olesen	4af33167a0	Added Crystal Calibration sketch with simple Serial UI. Fixed ddsAccumulator_t type.	2015-07-04 14:13:45 -06:00
Stephen Olesen	acc4aebe03	Add calculators for frequency steps. Accumulator has a typedef now. Optimize tick.	2015-07-03 15:23:39 -06:00
Stephen Olesen	7db28bff0e	Change DDS to using signed integers to try to keep our DC bias averaged out.	2015-07-02 19:30:53 -06:00
Stephen Olesen	2152100873	Change amplitude scaling. Go back to refclk for ICR1. Added phase changes.	2015-07-02 18:04:12 -06:00
Stephen Olesen	429e645ad2	Example for AFSK sending (AX25 format) added. DDS updated to a slower clock rate again.	2015-07-01 20:30:49 -06:00
Stephen Olesen	660fe0c602	Corrected the duration calculation on fixed DDS length.	2015-07-01 18:05:17 -06:00
Stephen Olesen	120442533d	Added DDS sample. Fixed pin 11 PWM output, now default (3 works better).	2015-07-01 17:56:40 -06:00
Stephen Olesen	016ad2398a	Added a define to use pin 3 for PWM, instead of the new default pin 11.	2015-07-01 15:01:55 -06:00
Stephen Olesen	8f2115adbc	Add some comments.	2015-07-01 14:54:22 -06:00
Stephen Olesen	2f4d17e4ed	Fixed up the duration timers, clockTick needs a cleanup.	2015-07-01 14:42:20 -06:00
Stephen Olesen	31eb465ebf	Allow for high idle duty cycle when output is 'off', amplitude adjustments.	2015-07-01 14:27:10 -06:00
Stephen Olesen	1117542411	Created generic DDS class for tone generation, update AFSK to start the right timers.	2015-07-01 14:04:20 -06:00