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This is to keep the top-level directory clean, to make it clear what is
core and what is a port, and to allow the repository to grow with new ports
in a sustainable way.
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There were several different spellings of MicroPython present in comments,
when there should be only one.
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This way it can be overridden by a socket module in Python, as in other
ports.
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GC finalization should be enabled for modlwip, or it may lead to GC
problems with socket objects. This decreases usable heap size from
36288 to 35968 (-320) bytes.
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This follows naming scheme of other modules in extmod.
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It's already included in the core when MICROPY_PY_LWIP is defined.
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This implements the orginal idea is that Signal is a subclass of Pin, and
thus can accept all the same argument as Pin, and additionally, "inverted"
param. On the practical side, it allows to avoid many enclosed parenses for
a typical declararion, e.g. for Zephyr:
Signal(Pin(("GPIO_0", 1))).
Of course, passing a Pin to Signal constructor is still supported and is the
most generic form (e.g. Unix port will only support such form, as it doesn't
have "builtin" Pins), what's introduces here is just practical readability
optimization.
"value" kwarg is treated as applying to a Signal (i.e. accounts for possible
inversion).
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It can still be overwritten by a port in mpconfigport.h but for almost
all cases one can use the provided default.
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Everyone should now be using the new ooFatFs library. The old one is no
longer supported and will be removed.
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The VFS sub-system supports mounting of an arbitrary number of devices
(limited only by available RAM). The internal flash is now mounted at
"/flash".
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With this patch, @micropython.asm_xtensa can be used on the esp8266 port.
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This patch allows esp8266 to use @micropython.native and
@micropython.viper function decorators. By default the executable machine
code is written to the space at the end of the iram1 region. The user can
call esp.set_native_code_location() to make the code go to flash instead.
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Select and poll will now work on socket objects.
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If a port defines MICROPY_READER_POSIX or MICROPY_READER_FATFS then
lexer.c now provides an implementation of mp_lexer_new_from_file using
the mp_reader_new_file function.
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Implementations of persistent-code reader are provided for POSIX systems
and systems using FatFS. Macros to use these are MICROPY_READER_POSIX and
MICROPY_READER_FATFS respectively. If an alternative implementation is
needed then a port can define the function mp_reader_new_file.
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It can be used in the following manner:
void MP_FASTCODE(foo)(int arg) { ... }
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As long as a port implement mp_hal_sleep_ms(), mp_hal_ticks_ms(), etc.
functions, it can just use standard implementations of utime.sleel_ms(),
utime.ticks_ms(), etc. Python-level functions.
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To save iRAM.
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SHA1 can only be supported if ussl module is compiled in, and it uses
axtls.
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This type was used only for the typedef of mp_obj_t, which is now defined
by the object representation. So we can now remove this unused typedef,
to simplify the mpconfigport.h file.
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To filter out even prototypes of mp_stream_posix_*() functions, which
require POSIX types like ssize_t & off_t, which may be not available in
some ports.
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As required for related functions in stream.h.
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To start with, the critical scripts _boot.py and flashbdev.py are frozen
to improve performance and reduce RAM consumption.
Saves about 1000 bytes of heap RAM for a bare boot with filesystem.
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Since not all ports that enable the machine module have the pin HAL
functions.
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These symbols are still defined in terms of the system Exxx symbols, and
can be switched to internal numeric definitions at a later stage.
Note that extmod/modlwip still uses many system Exxx symbols.
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This gives noticeable result for parsing simple input (modelled on 32-bit
unix port):
Before:
>>> micropython.mem_total()
3360
>>> micropython.mem_total()
4472
After:
>>> micropython.mem_total()
3072
>>> micropython.mem_total()
4052
However, effect on parsing large input is much less conclusive, e.g.:
Before:
>>> micropython.mem_total()
3376
>>> import pystone_lowmem
>>> micropython.mem_total()
33006
delta=29630
After:
>>> micropython.mem_total()
3091
>>> import pystone_lowmem
>>> micropython.mem_total()
32509
delta=29418
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The port name is lowercase, and this change is made for consistency with
the docs and other ports.
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