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<title>suspect-devices/circuitpython/supervisor/shared, branch 4.0.0-beta.0</title>
<subtitle>CircuitPython - a Python implementation for teaching coding with microcontrollers</subtitle>
<id>https://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=4.0.0-beta.0</id>
<link rel='self' href='https://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=4.0.0-beta.0'/>
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<updated>2019-01-19T00:37:06+00:00</updated>
<entry>
<title>Improvements thanks to danh's review</title>
<updated>2019-01-19T00:37:06+00:00</updated>
<author>
<name>Scott Shawcroft</name>
<email>scott@tannewt.org</email>
</author>
<published>2019-01-19T00:37:06+00:00</published>
<link rel='alternate' type='text/html' href='https://git.suspectdevices.com/suspect-devices/circuitpython/commit/?id=edc8383e2297156134a58067899eefacd5764802'/>
<id>urn:sha1:edc8383e2297156134a58067899eefacd5764802</id>
<content type='text'>
</content>
</entry>
<entry>
<title>Fix up nrf and using board.SPI in FourWire</title>
<updated>2019-01-18T02:19:07+00:00</updated>
<author>
<name>Scott Shawcroft</name>
<email>scott@tannewt.org</email>
</author>
<published>2019-01-18T02:19:07+00:00</published>
<link rel='alternate' type='text/html' href='https://git.suspectdevices.com/suspect-devices/circuitpython/commit/?id=6404aaf411d7fe5fd96f3a8cbf7a1cb7580a09e7'/>
<id>urn:sha1:6404aaf411d7fe5fd96f3a8cbf7a1cb7580a09e7</id>
<content type='text'>
</content>
</entry>
<entry>
<title>share fourwire and make nrf compile</title>
<updated>2019-01-17T23:15:59+00:00</updated>
<author>
<name>Scott Shawcroft</name>
<email>scott@tannewt.org</email>
</author>
<published>2019-01-17T23:15:59+00:00</published>
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<id>urn:sha1:760bd8d8a4f0aa0ed8651e89596fb2e6effbc14f</id>
<content type='text'>
</content>
</entry>
<entry>
<title>Rework displays in prep for dynamic support and 8bit parallel.</title>
<updated>2019-01-16T20:05:20+00:00</updated>
<author>
<name>Scott Shawcroft</name>
<email>scott@tannewt.org</email>
</author>
<published>2019-01-16T20:04:42+00:00</published>
<link rel='alternate' type='text/html' href='https://git.suspectdevices.com/suspect-devices/circuitpython/commit/?id=05d8885a1ab959fabdbb77f99408b2e7dc78b97c'/>
<id>urn:sha1:05d8885a1ab959fabdbb77f99408b2e7dc78b97c</id>
<content type='text'>
</content>
</entry>
<entry>
<title>Add subclass support to displayio.</title>
<updated>2019-01-15T01:29:19+00:00</updated>
<author>
<name>Scott Shawcroft</name>
<email>scott@tannewt.org</email>
</author>
<published>2019-01-15T01:26:36+00:00</published>
<link rel='alternate' type='text/html' href='https://git.suspectdevices.com/suspect-devices/circuitpython/commit/?id=747f2cfe267628fda8487c533ce7a5ab10a9388f'/>
<id>urn:sha1:747f2cfe267628fda8487c533ce7a5ab10a9388f</id>
<content type='text'>
Also, swap make_news to accept a kwarg map and refine param checking.

Fixes #1237
</content>
</entry>
<entry>
<title>Add USB MIDI support for SAMD and nRF.</title>
<updated>2019-01-09T22:02:11+00:00</updated>
<author>
<name>Scott Shawcroft</name>
<email>scott@tannewt.org</email>
</author>
<published>2018-11-17T01:04:42+00:00</published>
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<id>urn:sha1:b5e40f52c2b1c2890c866d7305e0e99b4811b7f5</id>
<content type='text'>
The API should be identical to using a UART for MIDI.

Fixes #672
</content>
</entry>
<entry>
<title>Don't check for corrupt heap too early; Fix QSPI timing</title>
<updated>2018-12-21T02:28:36+00:00</updated>
<author>
<name>Dan Halbert</name>
<email>halbert@halwitz.org</email>
</author>
<published>2018-12-21T02:28:36+00:00</published>
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<id>urn:sha1:bce6d124af6531f2d6ad6835546eaa471d0657a0</id>
<content type='text'>
</content>
</entry>
<entry>
<title>Rework safe mode and have heap overwrite trigger it.</title>
<updated>2018-12-06T22:24:20+00:00</updated>
<author>
<name>Scott Shawcroft</name>
<email>scott@tannewt.org</email>
</author>
<published>2018-12-06T22:24:20+00:00</published>
<link rel='alternate' type='text/html' href='https://git.suspectdevices.com/suspect-devices/circuitpython/commit/?id=6ef863997186e1893cdf19c0e04d0a8a3f33ad9d'/>
<id>urn:sha1:6ef863997186e1893cdf19c0e04d0a8a3f33ad9d</id>
<content type='text'>
This creates a common safe mode mechanic that ports can share.
As a result, the nRF52 now has safe mode support as well.

The common safe mode adds a 700ms delay at startup where a reset
during that window will cause a reset into safe mode. This window
is designated by a yellow status pixel and flashing the single led
three times.

A couple NeoPixel fixes are included for the nRF52 as well.

Fixes #1034. Fixes #990. Fixes #615.
</content>
</entry>
<entry>
<title>Add stack validity check and raise an error when it happens.</title>
<updated>2018-12-05T07:26:04+00:00</updated>
<author>
<name>Scott Shawcroft</name>
<email>scott@tannewt.org</email>
</author>
<published>2018-10-23T00:57:28+00:00</published>
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<id>urn:sha1:7ad2e6ace34a6d417ec1b84472fa409d5451137b</id>
<content type='text'>
The backtrace cannot be given because it relies on the validity
of the qstr data structures on the heap which may have been
corrupted.

In fact, it still can crash hard when the bytecode itself is
overwritten. To fix, we'd need a way to skip gathering the
backtrace completely.

This also increases the default stack size on M4s so it can
accomodate the stack needed by ASF4s nvm API.
</content>
</entry>
<entry>
<title>Add correct flash chip for Particle Mesh boards</title>
<updated>2018-12-05T02:20:51+00:00</updated>
<author>
<name>Scott Shawcroft</name>
<email>scott@tannewt.org</email>
</author>
<published>2018-12-05T02:15:10+00:00</published>
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<id>urn:sha1:b25bf062fb963284a26db9bdc46d0c00c7e869ab</id>
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