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* For boards a with reset switch, pressing twice resets into bootloader.
* Enabled by linking with the pico_bootsel_via_double_reset library.

Flash erase/program functions disable the XIP bit.  If any code runs from
flash at the same time (eg an IRQ or code it calls) it will fail and cause
a lockup.

This feature {x=} was introduced in Python 3.8 so needs a separate .exp
file to run on earlier Python versions.

See https://bugs.python.org/issue36817Signed-off-by: Damien George <damien@micropython.org>

This makes it work like --no-follow and --no-exclusive using a mutex group
and dest.  Although the current implementation with BooleanOptionAction is
neater it requires Python 3.9, so don't use this feature.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

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>