Commit Graph

40 Commits

Author SHA1 Message Date
Scott Shawcroft 48b5f2a384
Initial work on SAMD 2020-03-13 11:16:41 -07:00
Dan Halbert b6206406de new pin validation routines; don't use mp_const_none if NULL will do 2020-02-28 23:43:04 -05:00
Thea Flowers 4b742f88d9
Fix spelling 2019-10-25 10:50:27 -07:00
Thea Flowers 4fdf518251
Track unadjusted PWM duty cycle to avoid accumulating conversion errors
Fixes #2086

When the frequency of a `PWMOut` is change it re-sets the PWM's duty cycle as
well, since the registers have to be re-calculated based on the new frequency.
Unfortunately, `common_hal_pulseio_pwmout_get_duty_cycle`
will return a value very close to, but not exactly, the value passed to `common_hal_pulseio_pwmout_set_duty_cycle`. If the frequency is modified
without the calling code also re-setting the duty cycle then the duty cycle
will decay over time. This fixes that problem by tracking the unadjusted duty
cycle and re-setting the duty cycle to that value when the frequency is changed.
2019-10-23 14:34:14 -07:00
Jeff Epler d9ee2d28a0 atmel-samd: Use RUN_BACKGROUND_TASKS 2019-08-11 08:53:02 -05:00
Dan Halbert cdd77b5972 remove CPy-specific EIC handlers from samd-peripherals 2019-04-04 16:04:11 -04:00
Dan Halbert 97140e6a62 wrong arg type for PWMOut variable_frequency 2019-03-12 21:28:30 -04:00
Dan Halbert 3c24e893e9 Fix SYNCBUSY loop typo. 2019-02-28 23:38:26 -05:00
Dan Halbert 808304e827 Use TCC LUPD lock when updating CCB 2019-02-28 19:53:35 -05:00
sommersoft 55e7c5a41b handle 'set_timer_handler' on this side, vs samd-periphs. 2019-02-19 20:18:21 -06:00
sommersoft dafc370d22 moves 'shared_timer_handler' back to atmel-samd from samd-peripherals 2019-02-16 19:54:16 -06:00
Scott Shawcroft 69bc5e189b
Rudamentary backlight support 2019-01-31 11:42:14 -08:00
Dan Halbert bc510e714f merge 3.0.2 to master 2018-09-18 15:38:12 -04:00
Dan Halbert c3918bae57 PWMOut was not claming channels on shared TCCs 2018-09-11 19:46:47 -04:00
Dan Halbert 9ea809bef7 add pin claiming to devices 2018-08-31 18:38:05 -04:00
Scott Shawcroft 933add6cd8
Support internationalisation. 2018-08-07 14:58:57 -07:00
Scott Shawcroft 168aa394db
Move pin struct to the peripherals library.
Its slimmed down by removing the qstr and bit packing TCC info.

The trinket m0 build actually grows by 20 bytes. The arduino zero
build shrinks by 188 bytes.
2018-08-02 13:59:05 -07:00
Scott Shawcroft a5e03b76a6 Split out the peripherals library in preparation of sharing with MakeCode. 2018-06-15 16:16:21 -07:00
Scott Shawcroft 8fb34a5846 Use bool not int. 2018-06-08 14:57:20 -07:00
Scott Shawcroft 2fbab8067a Prevent freezing USB during high frequency PulseIn.
We now track the last time the background task ran and bail on the
PulseIn if it starves the background work. In practice, this
happens after the numbers from pulsein are no longer accurate.

This also adjusts interrupt priorities so most are the lowest level
except for the tick and USB interrupts.

Fixes #516 and #876
2018-06-08 12:56:32 -07:00
Scott Shawcroft d0fb6e7a2f atmel-samd: Add rotary encoder support.
Fixes #283
2018-06-01 15:08:48 -07:00
Scott Shawcroft fd71e56891 atmel-samd: Re-org helper peripheral files into their own subdirectory.
Ideally in the future they won't depend on ASF4 or MicroPython.
2018-06-01 15:07:31 -07:00
Roy Hooper a0954b9e11 Fix for Issue #770 - Provide a better error message when timers are still available. 2018-05-14 13:52:32 -04:00
Jerry Needell fe738598da modify tick.c to simplify - remove interupt disable from common_hal_pulseio_pulsein_resume 2018-04-20 11:59:33 -04:00
Jerry Needell e09d95067c update tick.c (fix LOAD value) update PulseIn.c (do not enable interrupts for trigger_duration > 1000 2018-04-17 21:46:15 -04:00
Jerry Needell e55e06d501 modify tick.c to work when interrupts disabled - modify PulseIn.c to cast argument to common_hal_delay_us 2018-04-16 08:11:14 -04:00
Scott Shawcroft 28642ab10d Add audio output support!
This evolves the API from 2.x (and breaks it). Playback devices are now
separate from the samples themselves. This allows for greater playback
flexibility. Two sample sources are audioio.RawSample and audioio.WaveFile.
They can both be mono or stereo. They can be output to audioio.AudioOut or
audiobusio.I2SOut.

Internally, the dma tracking has changed from a TC counting block transfers
to an interrupt generated by the block event sent to the EVSYS. This reduces
the overhead of each DMA transfer so multiple can occure without using up TCs.

Fixes #652. Fixes #522. Huge progress on #263
2018-04-12 16:35:13 -07:00
Scott Shawcroft a2b18b75d4 Fix loops and comma style. 2018-02-16 10:05:28 -08:00
Scott Shawcroft 538081528d pulsein works on m0 2018-02-15 16:04:39 -08:00
Scott Shawcroft fcde138ea3 pulsein works on m4 2018-02-15 15:12:58 -08:00
Scott Shawcroft 07230f2637 pulsein compiles but doesn't work 2018-02-14 16:59:04 -08:00
Scott Shawcroft c7af17525b m4 pulseout works 2018-02-14 11:38:52 -08:00
Scott Shawcroft 6a7d889dd4 m0 pulseout works. Factored out shared timer code. 2018-02-13 18:17:20 -08:00
Scott Shawcroft 8479eef578 m0 tc and tcc work 2018-02-13 16:44:04 -08:00
Scott Shawcroft 6c3075bec6 m4 tc and tcc works. multi-tcc channels ok too. 2018-02-13 14:22:55 -08:00
Scott Shawcroft cc616aea4e m4 tc output works. Watch out for the PAC! 2018-02-12 23:41:26 -08:00
Scott Shawcroft 0397202288 m4 compiles, pwmout implemented but TC0 (A1) doesn't run 2018-02-09 17:21:06 -08:00
Scott Shawcroft 0398f308fa m4 compiles, pwmout implemented 2018-02-09 16:37:27 -08:00
Scott Shawcroft 190e7d629e WIP 2018-02-09 16:37:27 -08:00
Scott Shawcroft 73c15dcf8b Merge commit 'f869d6b2e339c04469c6c9ea3fb2fabd7bbb2d8c' into nrf2_merge
This is prep for merging in the NRF5 pull request.
2017-10-24 22:31:16 -07:00