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And how they relate to MicroPython.  As these features are implemented (or
the decision is made to not implement them) the tables can be updated to
document the differences between MicroPython and standard Python.

Via the MICROPY_HW_FLASH_DQS flag.

This makes sure changes from previous related commits actually work.

This is the same fix as applied in uselect_poll_basic.py.

The application isn't necessarily called 'micropython' especially
not When using variants, i.e. the tests need to be ran using $(PROG).

Following the unix port.

Support for building variants with msvc was done by @stinos.

Because the GENERIC board won't fit in the flash defined by esp8266_ota.ld.
Signed-off-by: Damien George <damien@micropython.org>

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

Commit 4dba04a5 refactored the network code
but the combination of MICROPY_PY_WIZNET5K=5500 and MICROPY_PY_LWIP=1
broke.

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

In commit 86ce4426 the '.frozen' entry was
added at the start of sys.path, to allow control over when frozen modules
are searched during import, and retain existing behaviour whereby frozen
was searched before the filesystem.

But Python semantics of sys.path require sys.path[0] to be the directory of
the currently executing script, or ''.

This commit moves the '.frozen' entry to second place in sys.path, so
sys.path[0] retains its correct value (described above).
Signed-off-by: Damien George <damien@micropython.org>

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

Fixes issue #7480

This allows the remote MicroPython instance to create and delete
directories from the mounted host filesystem in addition to the already
existing functionality of reading, creating, and modifying files.
Signed-off-by: Michael Bentley <mikebentley15@gmail.com>

This aims to solve glitching issues on long neopixel strips.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

Save and restore the same duty cycle when the frequency (or frequency
resolution) is changed.  This allows a smooth frequency change.

Also update the esp32 PWM quickref to be clearer.

To improve coverage of mpz_cmp and mpn_cmp.
Signed-off-by: Damien George <damien@micropython.org>

This commit makes sure that the value zero is always encoded in an mpz_t as
neg=0 and len=0 (previously it was just len=0).

This invariant is needed for some of the bitwise operations that operate on
negative numbers, because they cannot handle -0.  For example
(-((1<<100)-(1<<100)))|1 was being computed as -65535, instead of 1.

Fixes issue #8042.
Signed-off-by: Damien George <damien@micropython.org>

These removed ones are either unused by MicroPython or provided by osapi.h
in the SDK.  In particular ets_delay_us() has different signatures for
different versions of the SDK, so best to let it provide the declaration.

Fixes issue #8095.
Signed-off-by: Damien George <damien@micropython.org>

Appears incorrectly as E407 in the download manager.

If ADCx pins are hidden, print an empty table to prevent linker errors.

The vfs flags could have any random value from stack.  This bug was
introduced back in 7723dac3

The mp_sys_path_obj and mp_sys_argv_obj objects are only used by the
runtime and accessible from Python if MICROPY_PY_SYS is enabled.  So
exclude them from the runtime state if this option is disabled.
Signed-off-by: Damien George <damien@micropython.org>

If MICROPY_PY_SYS_PATH_ARGV_DEFAULTS is enabled (which it is by default)
then sys.path and sys.argv will be initialised and populated with default
values.  This keeps all bare-metal ports aligned.
Signed-off-by: Damien George <damien@micropython.org>

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

Frozen modules will be searched preferentially, but gives the user the
ability to override this behavior.

This matches the previous behavior where "" was implicitly the frozen
search path, but the frozen list was checked before the filesystem.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

This ensures MICROPY_QSTR_EXTRA_POOL and MICROPY_MODULE_FROZEN_MPY are set
if necessary before the CFLAGS are extracted for QSTR generation.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

This changes makemanifest.py & mpy-tool.py to merge string and mpy names
into the same list (now mp_frozen_names).

The various paths for loading a frozen module (mp_find_frozen_module) and
checking existence of a frozen module (mp_frozen_stat) use a common
function that searches this list.

In addition, the frozen lookup will now only take place if the path starts
with ".frozen", which needs to be added to sys.path.

This fixes issues #1804, #2322, #3509, #6419.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

Takes the functionality from tools/make-frozen.py, adds support for
multiple frozen directories, and moves it to tools/makemanifest.py.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

These have been deprecated for over two years in favour of FROZEN_MANIFEST
and manifest.py.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

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

This feature is not enabled on any port, it's not in CPython's io module,
and functionality is better suited to the micropython-lib implementation of
pkg_resources.

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

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

Default SPI pins are now correctly assigned by machine_hw_spi.c even for S2
and S3.  mpconfigboard.h files define defaults with flipped SPI(1) and
SPI(2) to workaround a bug in machine_hw_spi.c - the bug is fixed.
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>

Use IO_MUX pins as defined by ESP IDF in soc/esp32/include/soc/spi_pins.h

ESP32S2 and S3 don't have IO_MUX pins for SPI3, GPIO matrix is always used.
Choose suitable defaults for S2 and S3.

ESP32C3 does not have SPI3 at all.  Don't define pin mappings for it.
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>

Use IO_MUX pins as defined by ESP IDF in soc/esp32*/include/soc/spi_pins.h
Alternatively use now deprecated HSPI_IOMUX_PIN_NUM_xxx
(or FSPI_IOMUX_PIN_NUM_xxx for ESP32S2) for compatibility with IDF 4.2
and older.
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>

The index of machine_hw_spi_obj and machine_hw_spi_default_pins arrays is
assigned to 0 for ARG_id==HSPI_HOST and 1 for another SPI.  On ESP32S2 and
S3 HSPI_HOST=2 so the first set (idx=0) of default pins is used for
SPI(id=2) aka HSPI/SPI3 and the second set (idx=1) for SPI(id=1) aka
FSPI/SPI2.  This makes a misleading mess in MICROPY_HW_SPIxxxx definitions
and it is also in contradiction to the comments around the definitions.

Change the test of ARG_id to fix the order of machine_hw_spi_default_pins.

This change might require adjusting MICROPY_HW_SPIxxxx definitions in
mpconfigboard.h of S2/S3 based boards.
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>