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Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

You can set one or the other (or neither) but not both.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

The --no-exclusive flag was accidentally added to the mutex group in
178198a0.

The --soft-reset flag was accidentally added to the mutex group in
41adf178.

These flags can be specified independently to --[no-]follow so should not
be in that mutex group.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

This achieves a substantial performance improvement when rendering glyphs
to color displays, the benefit increasing proportional to the number of
pixels in the glyph.

The compiler was optimising this out already so it's a no-op change.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

Saves ~1kiB.  Add comment to this effect to mpconfig.h.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

Signed-off-by: Damien George <damien@micropython.org>

And using "-B" means mpy-cross is forcefully rebuilt, sometimes with
invalid CFLAGS_EXTRA options which makes the auto-build fail.
Signed-off-by: Damien George <damien@micropython.org>

Signed-off-by: Tobias Thyrrestrup <tt@LEGO.com>

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

Hand-written version for M0, and cycle-counter version for everything else.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

This is a generic API for synchronously bit-banging data on a pin.

Initially this adds a single supported encoding, which supports controlling
WS2812 LEDs.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

The sys.stdin.buffer and sys.stdout.buffer streams work just as well (and
are just as fast) as pyb.USB_VCP on stm32 devices, so there's no need to
have the USB_VCP specialisation code, which just adds complexity.

Also, on stm32 devices with both USB and UART (or other serial interface),
if something other than the USB_VCP port is used for the serial connection
then mpremote mount will not work because it will default to reading and
writing on USB_VCP instead of the other connected serial stream.

As part of this simplification, support for a second port as input is
removed (this feature was never exposed to the user).
Signed-off-by: Damien George <damien@micropython.org>

This was missed in 692d36d7.  It's not
strictly necessary as the GC will clean it anyway, but it's good to
pre-emptively gc_free() all the blocks used in lexing/parsing.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

Replace `import socket as socket` with `import socket`.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

This fixes the rendering on library/index.rst.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

Prevents the finaliser from being missed if there's a dangling reference
on the stack to one of the blocks for the files (that this test checks
that they get finalised).

See github.com/micropython/micropython/pull/7659#issuecomment-899479793
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

This compiler is unable to optimise out the giant strcmp match generated
by MP_MATCH_COMPRESSED.

See github.com/micropython/micropython/pull/7659#issuecomment-899479793
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

Fixes issue #7631.
Signed-off-by: Damien George <damien@micropython.org>

Release the GIL while waiting for SPI transfers to complete to allow other
threads to make progress.

Fixes #7662.

To make machine.Signal work correctly (among other things).  The solution
is taken over from the rp2 port.

Signed-off-by: Philipp Ebensberger

This tests both sending indications/notifications from a server to
subscribed clients via gatts_write(...,send_update=True) and subscribing
from a client.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

This allows the write to trigger a notification or indication, but only to
subscribed clients. This is different to gatts_notify/gatts_indicate,
which will unconditionally notify/indicate.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

This implements (most of) the PEP-498 spec for f-strings and is based on
https://github.com/micropython/micropython/pull/4998 by @klardotsh.

It is implemented in the lexer as a syntax translation to `str.format`:
  f"{a}" --> "{}".format(a)

It also supports:
  f"{a=}" --> "a={}".format(a)

This is done by extracting the arguments into a temporary vstr buffer,
then after the string has been tokenized, the lexer input queue is saved
and the contents of the temporary vstr buffer are injected into the lexer
instead.

There are four main limitations:
- raw f-strings (`fr` or `rf` prefixes) are not supported and will raise
  `SyntaxError: raw f-strings are not supported`.

- literal concatenation of f-strings with adjacent strings will fail
    "{}" f"{a}" --> "{}{}".format(a)    (str.format will incorrectly use
                                         the braces from the non-f-string)
    f"{a}" f"{a}" --> "{}".format(a) "{}".format(a) (cannot concatenate)

- PEP-498 requires the full parser to understand the interpolated
  argument, however because this entirely runs in the lexer it cannot
  resolve nested braces in expressions like
    f"{'}'}"

- The !r, !s, and !a conversions are not supported.

Includes tests and cpydiffs.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

See issue #7480.
Signed-off-by: Damien George <damien@micropython.org>

Which can be the case on Windows and macOS for certain serial devices.

Fixes issue #7636.
Signed-off-by: Damien George <damien@micropython.org>

The correct callback-deregister functions must be called dependent on the
socket type, otherwise resources may not be freed correctly.
Signed-off-by: Damien George <damien@micropython.org>

Test instances can now use the following methods to synchronise their
execution:

    multitest.broadcast("sync message")
    multitest.wait("sync message")
Signed-off-by: Damien George <damien@micropython.org>

This allows nrf devices to load .mpy files.  And nrf52840 and nrf9160 based
boards also support compiling and loading native code.

Adds section about extending built-in modules from Python.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

Anywhere a module is mentioned, use its "non-u" name for consistency.

The "import module" vs "import umodule" is something of a FAQ, and this
commit intends to help clear that up.  As a first approximation MicroPython
is Python, and so imports should work the same as Python and use the same
name, to a first approximation.  The u-version of a module is a detail that
can be learned later on, when the user wants to understand more and have
finer control over importing.

Existing Python code should just work, as much as it is possible to do that
within the constraints of embedded systems, and the MicroPython
documentation should match the idiomatic way to write Python code.

With universal weak links for modules (via MICROPY_MODULE_WEAK_LINKS) users
can consistently use "import foo" across all ports (with the exception of
the minimal ports).  And the ability to override/extend via "foo.py"
continues to work well.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

This is a simple rename of the files, no content changes
(other than updating index.rst to use the new paths)
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>