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
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
fd71e56891
atmel-samd: Re-org helper peripheral files into their own subdirectory.
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Ideally in the future they won't depend on ASF4 or MicroPython.
2018-06-01 15:07:31 -07:00
3fd9900ea7
disable pins on trinket_m0 so that we can free a fair bit of flash - Issue #840
2018-05-15 13:13:59 -04:00
812fe0c93f
Turn on nvm in 3.0.
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Its 256b on M0 and 8k on M4 to match flash erase sizes.
Fixes #758
2018-04-13 16:22:28 -07:00
fe6f5aaa70
atmel-samd: reset: reset() was always entering bootloader mode
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.. set the dbl_tap word to a different special value unless
RUNMODE_BOOTLOADER was selected
2018-04-05 08:16:53 -05:00
065e82015f
merge from 2.2.0 + fix up board defs
2018-01-02 21:25:41 -05:00
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
Scott Shawcroft
Roy Hooper
Jeff Epler
Dan Halbert