Scott Shawcroft
07a8899c72
Support M4
2018-06-08 12:56:32 -07:00
Scott Shawcroft
2fbab8067a
Prevent freezing USB during high frequency PulseIn.
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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
9920f0a5de
atmel-samd: Make ticks more atomic.
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Always use current_tick when sub millisecond precision is required.
Otherwise getting the ms/us to correspond is tricky.
2018-06-01 15:08:52 -07:00
Jerry Needell
bef05ffbf1
cleanup in tick.c
2018-04-20 15:23:03 -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
16bb40b110
modify tic.c to chec if interrupts are enabled, rename us_between_ticks to us until_next_tick
2018-04-19 22:25:48 -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
3177e10e9e
atmel-samd: Add samd21 neopixel support.
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Also, fix and enable the status neopixel.
Fixes #264
2017-10-31 22:38:09 -07:00
Scott Shawcroft
73c15dcf8b
Merge commit 'f869d6b2e339c04469c6c9ea3fb2fabd7bbb2d8c' into nrf2_merge
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This is prep for merging in the NRF5 pull request.
2017-10-24 22:31:16 -07:00
