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Following how other .irq() methods work on other objects.
Signed-off-by: Damien George <damien@micropython.org>
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This is to provide a summary of the licenses used by MicroPython.
- Add SPDX identifier for every directory that includes
non-MIT-licensed content.
- Add brief summary.
- Update docs license to be more explicit.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
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Signed-off-by: Damien George <damien@micropython.org>
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With docs and a multi-test using TCP server/client.
This method is a MicroPython extension, although there is discussion of
adding it to CPython: https://bugs.python.org/issue41305
Signed-off-by: Mike Teachman <mike.teachman@gmail.com>
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This is the minimum change to fix the example code so it actually runs on
the majority of ports.
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Usage:
usb = pyb.USB_VCP()
usb.irq(lambda u:print(u, u.read()), usb.IRQ_RX)
Signed-off-by: Damien George <damien@micropython.org>
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"buses" is the widely accepted plural form of "bus".
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Add details for Pin.init() value and alt arguments.
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Signed-off-by: Damien George <damien@micropython.org>
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All the method signatures from rp2_pio.c and friends have been taken and
converted to RST format, then explanatory notes added for each signature.
Signed-off-by: Tim Radvan <tim@tjvr.org>
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This adds to the ESP8266 tutorial instructions explaining which pins to
pull low to enter programming mode.
Commit made originally by @ARF1 in #2910.
Signed-off-by: Damien George <damien@micropython.org>
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See also https://github.com/esp8266/Arduino/issues/1624
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This is provide by a few ports now, and is very useful.
Signed-off-by: Damien George <damien@micropython.org>
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This adds an initial specification of the machine.PWM class, to provide a
way to generate PWM output that is portable across the different ports.
Such functionality may already be available in one way or another (eg
through a Timer object), but because configuring PWM via a Timer is very
port-specific, and because it's a common thing to do, it's beneficial to
have a top-level construct for it.
The specification in this commit aims to provide core functionality in a
minimal way. It also somewhat matches most existing ad-hoc implementations
of machine.PWM.
See discussion in #2283 and #4237.
Signed-off-by: Damien George <damien@micropython.org>
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This commit adds the errno attribute to exceptions, so code can retrieve
errno codes from an OSError using exc.errno.
The implementation here simply lets `errno` (and the existing `value`)
attributes work on any exception instance (they both alias args[0]). This
is for efficiency and to keep code size down. The pros and cons of this
are:
Pros:
- more compatible with CPython, less difference to document and learn
- OSError().errno will correctly return None, whereas the current way of
doing it via OSError().args[0] will raise an IndexError
- it reduces code size on most bare-metal ports (because they already have
the errno qstr)
- for Python code that uses exc.errno the generated bytecode is 2 bytes
smaller and more efficient to execute (compared with exc.args[0]); so
bytecode loaded to RAM saves 2 bytes RAM for each use of this attribute,
and bytecode that is frozen saves 2 bytes flash/ROM for each use
- it's easier/shorter to type, and saves 2 bytes of space in .py files that
use it (for each use)
Cons:
- increases code size by 4-8 bytes on minimal ports that don't already have
the `errno` qstr
- all exceptions now have .errno and .value attributes (a cpydiff test is
added to address this)
See also #2407.
Signed-off-by: Damien George <damien@micropython.org>
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Signed-off-by: Damien George <damien@micropython.org>
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Make and CMake builds are slightly different and these changes help make it
clear what to do in each case.
Signed-off-by: Damien George <damien@micropython.org>
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It's a bit of a pitfall with user C modules that including them in the
build does not automatically enable them. This commit changes the docs and
examples for user C modules to encourage writers of user C modules to
enable them unconditionally. This makes things simpler and covers most use
cases.
See discussion in issue #6960, and also #7086.
Signed-off-by: Damien George <damien@micropython.org>
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Documents the micropython.cmake file required to make user C modules
compatible with the CMake build system.
Signed-off-by: Phil Howard <phil@pimoroni.com>
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Add most formatting-only commits to this file so that when used with
git blame, these commits are excluded and the output shows only the
interesting bits.
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Signed-off-by: Damien George <damien@micropython.org>
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The default pins can be optionally configured by a board.
Fixes issue #6974.
Signed-off-by: Damien George <damien@micropython.org>
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This commit implements basic NVS support for the esp32. It follows the
pattern of the esp32.Partition class and exposes an NVS object per NVS
namespace. The initial support provided is only for signed 32-bit integers
and binary blobs. It's easy (albeit a bit tedious) to add support for
more types.
See discussions in: #4436, #4707, #6780
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Also fix related problems with socket on esp32, improve docs for
wrap_socket, and add more tests.
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Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
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Matches CPython behavior.
Fixes #6686
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Signed-off-by: Brianna Laugher <brianna.laugher@gmail.com>
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Signed-off-by: Damien George <damien@micropython.org>
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Signed-off-by: Damien George <damien@micropython.org>
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Signed-off-by: Damien George <damien@micropython.org>
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This commit adds many new sections to the existing "Developing and building
MicroPython" chapter to make it all about the internals of MicroPython.
This work was done as part of Google's Season of Docs 2020.
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Calculate the bit timing from baudrate if provided, allowing sample point
override. This makes it a lot easier to make CAN work between different
MCUs with different clocks, prescalers etc.
Tested on F4, F7 and H7 Y/V variants.
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