Commit Graph

283 Commits

Author SHA1 Message Date
Fin Maaß c16a484796 zephyr/machine_uart: Ignore return value of uart_irq_update.
For uart_irq_update() the allowed return values
are a negative errno or 1. 0 is not allowd.
Therefore ignore the return value.
Also the return type might soon be changed to void.

Signed-off-by: Fin Maaß <f.maass@vogl-electronic.com>
2026-04-07 13:41:15 +10:00
Antonio Galea 30cc160101 zephyr: Fix macro for getting erase_block_size.
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Signed-off-by: Antonio Galea <antonio.galea@gmail.com>
2026-03-03 16:43:05 +11:00
Fin Maaß 104deaa688 zephyr: Use nodelabel when printing device name.
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Python code lint and formatting with ruff / ruff (push) Has been cancelled
This gives a more user-friendly name when the Python object (eg Pin) is
printed.  If the nodelabel is unavailable then it uses `dev->name` as a
fallback.

Signed-off-by: Fin Maaß <f.maass@vogl-electronic.com>
2026-02-26 20:16:59 +11:00
Damien George 1ab9b66a48 zephyr/mpconfigport: Remove duplicate builtins.open definition.
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It's already provided because `MICROPY_PY_IO` is enabled.

Tested on `bbc_microbit_v2`, there is now only a single open.

Signed-off-by: Damien George <damien@micropython.org>
2026-02-23 13:27:49 +11:00
Fin Maaß 97219553ed zephyr: Add support for RISC-V RV32IMC native code emitter.
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Add support for RISC-V RV32IMC native code emitter in the zephyr port.  It
will be automatically enabled by default, but can be overridden by defining
`MICROPY_EMIT_RV32` and/or `MICROPY_EMIT_INLINE_RV32`.

Signed-off-by: Fin Maaß <f.maass@vogl-electronic.com>
2026-02-11 11:23:05 +11:00
Fin Maaß 6ae08eaf75 zephyr/modzsensor: Add additional sensor type constants.
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Add additional sensor type constants.
Commonly used by power and current measurement sensors.

Signed-off-by: Fin Maaß <f.maass@vogl-electronic.com>
2026-02-10 23:55:01 +11:00
Fin Maaß 05c2f88d6e zephyr/main: Put GC heap in noinit linker area.
By putting the heap in the noinit area instead of the bss area, zephyr
won't memset it to zero during start.  This improves startup time, in
particular if the heap is very big.  The system heap of zephyr is also in
the same section.

Signed-off-by: Fin Maaß <f.maass@vogl-electronic.com>
2026-02-10 23:51:54 +11:00
Fin Maaß 92d64ca5a7 zephyr/Kconfig: Resolve build problem with multiple FatFs libs.
Zephyr and MicroPython both have a variant of FatFs, but having both
enabled leads to build fails.

Signed-off-by: Fin Maaß <f.maass@vogl-electronic.com>
2026-02-10 23:46:03 +11:00
Damien George 0c7726a89c all: Use enum instead of bool argument to mp_handle_pending.
This should be a no-op because the enum and bool have the same numeric
value.

Signed-off-by: Damien George <damien@micropython.org>
2026-02-05 00:29:36 +11:00
Damien George adbdded185 ports: Remove incorrect and unnecessary mp_handle_pending declaration.
In c57aebf790 `mp_handle_pending()` became a
static-inline function.  So these declarations in `mpconfigport.h` are
incorrect and removed by this commit.

Signed-off-by: Damien George <damien@micropython.org>
2026-02-05 00:29:05 +11:00
Damien George 3a487c32ba all: Fix spelling of Micropython -> MicroPython.
Signed-off-by: Damien George <damien@micropython.org>
2026-01-13 12:51:31 +11:00
Vdragon 3d9a3e89cf zephyr: Add support for GC split-heap.
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Adds the ability to use PSRAM and non-contiguous memory.

Example usage, add this to dts overlay:

    / {
            heap_psram {
                    compatible = "micropython,heap";
                    size = <DT_SIZE_M(4)>;
                    memory-region = <&psram>;
            };

            heap_sram1 {
                    compatible = "micropython,heap";
                    size = <DT_SIZE_K(140)>;
                    memory-region = <&sram1>;
            };
    };

Signed-off-by: Vdragon <mail@massdriver.space>
2025-11-26 23:40:39 +11:00
Vdragon bd111ccd4b zephyr: Allow a custom dts.
Allows using custom DTS things such as bindings.

Signed-off-by: Vdragon <mail@massdriver.space>
2025-11-26 23:40:08 +11:00
Vdragon 0ebaad2ba0 zephyr/modules: Add Zephyr FileSystem support to _boot.py.
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Signed-off-by: Vdragon <mail@massdriver.space>
2025-11-20 14:14:26 +11:00
Vdragon a40aba3455 zephyr/boards: Setup rpi_pico to use Zephyr FS instead of MPY FS.
Use new Zephyr FS, and be a demonstration of that configuration.

This is still on-disk compatible with existing filesystems on the internal
flash.

Signed-off-by: Vdragon <mail@massdriver.space>
2025-11-20 14:12:32 +11:00
Vdragon 559eb7cdb3 zephyr/CMakeLists.txt: Fix FS config options being ignored.
This makes CONFIG_MICROPY_VFS_* actually do things.

Signed-off-by: Vdragon <mail@massdriver.space>
2025-11-20 14:12:23 +11:00
Vdragon e74367684e zephyr: Introduce Zephyr native filesystem VFS interface.
This allows using Zephyr's supported VFS and interface it to MicroPython's
VFS.  That makes the MicroPython-side filesystem drivers unecessary, eg you
can disable LFS2 in MicroPython but still do LFS2 because it's using
Zephyr's.

An advantage of this is that the filesystem can be shared between Zephyr C
code and MicroPython.

Signed-off-by: Vdragon <mail@massdriver.space>
2025-11-20 14:09:38 +11:00
Jeff Epler 007f127a61 all: Simplify mp_int_t/mp_uint_t definition.
Assuming proper C99 language support, we can select "the int type as big as
a pointer" (most of the time) or "the 64-bit int type" (nanboxing with
REPR_D), and then define everything else automatically.

This simplifies port configuration files.  And the types can still be
overridden if needed.

Signed-off-by: Jeff Epler <jepler@unpythonic.net>
2025-10-23 15:12:28 +11:00
Ned Konz 2082a4d189 zephyr/boards: Add NXP MIMXRT1020 EVK board.
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This board has plenty of RAM, flash, and peripherals, including Ethernet.
It also has a microSD slot, which also works.

Access to the REPL is via UART1, which is available via the DAPLink
connector J23.

Signed-off-by: Ned Konz <ned@metamagix.tech>
2025-10-22 15:30:27 +11:00
Ned Konz 7bb78fb6df zephyr/boards: Add XIAO BLE NRF52840 SENSE board.
This commit adds Zephyr support for the XIAO BLE NRF52840 SENSE board from
Seeed Studio.

It also provides a good example of a richer Zephyr port than the default,
adding:
- Frozen modules (including asyncio, upysh, aioble and aiorepl).
- Enough MicroPython features to support using aioble (at least for the
  `temp_sensor.py` example).
- JSON, random, re, struct, etc.

Signed-off-by: Ned Konz <ned@metamagix.tech>
2025-10-22 15:00:35 +11:00
Ned Konz 4c11f64faa zephyr: Add erase block size to FlashArea.areas entries.
This commit changes the values in the `FlashArea.areas` dictionary from
simple integer IDs to (ID, erase-block-size) tuples.

`_boot.py` was changed to use the newly available erase block size.

Signed-off-by: Ned Konz <ned@metamagix.tech>
2025-10-22 10:24:32 +11:00
Ned Konz 7090fc5dd6 zephyr: Mount all disks and flash partition, formatting if necessary.
Existing C code in `main.c` only mounts a flash filesystem if one exists,
and doesn't do anything if the 'storage' partition is not formatted.

This commit moves the mounting logic from `main.c` to frozen code using
`modules/_boot.py` and adds the formatting of a previously unformatted
partition if the mount fails.

Every available disk (in the newly added `DiskAccess.disks` tuple) will be
mounted on separate mount points (if they're formatted), and the 'storage'
flash partition (if any) will be mounted on /flash (and will be formatted
as LFS2 if necessary).

Also, `sys.path` will be updated with appropriate 'lib' subdirectories for
each mounted filesystem.

The current working directory will be changed to the last `DiskAccess.disk`
mounted, or to /flash if no disks were mounted.

Then `boot.py` and `main.py` will be executed from the current working
directory if they exist.

Thanks to @VynDragon for the logic in `zephyr/zephyr_storage.c`.

Signed-off-by: Ned Konz <ned@metamagix.tech>
2025-10-22 10:22:48 +11:00
Ayush Singh 00a926e99e zephyr/boards: Add PocketBeagle 2 rev A1 m4 support.
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Same configuration as rev A0.

Signed-off-by: Ayush Singh <ayush@beagleboard.org>
2025-10-13 12:38:34 +11:00
Ayush Singh 29950295c4 zephyr/boards: Add PocketBeagle 2 rev A0 m4 support.
Add support for PocketBeagle 2 rev A0 m4.  Since it has 256K of SRAM (split
into 192K instruction and 64K data regions), some things need to be
disabled in MicroPython to make it fit.

Signed-off-by: Ayush Singh <ayush@beagleboard.org>
2025-10-13 12:37:57 +11:00
Ned Konz c6a78515fb zephyr/modzsensor: Add set/get sensor attributes to zsensor.
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This commit adds `Sensor.attr_set()` and `Sensor.attr_get_*()` methods that
are necessary to set various sensor attributes if they haven't been set
statically in the device tree.

This is needed, for example, because the LSM6DS3TR-C sensor on the XIAO BLE
NRF52840 SENSE board will not work with `zsensor` because it doesn't have
any default configuration for sampling frequency.

Various `SENSOR_ATTR_*` constants from
`zephyr/incude/zephyr/drivers/sensor.h` have been added as `ATTR_*`
constants in the `zsensor` module.

Signed-off-by: Ned Konz <ned@metamagix.tech>
2025-10-13 12:06:24 +11:00
Ned Konz d42a301afd zephyr/machine_adc: Add ADC support.
This commit adds support for ADC peripherals in the Zephyr port.

As is typical for Zephyr, the ADC channel setup is done in the devicetree
(typically using an overlay).  This code requires ADC channels to be listed
in the io-channels property of the zephyr,user root node.

Signed-off-by: Ned Konz <ned@metamagix.tech>
2025-10-13 11:39:59 +11:00
Vdragon c9a16e862c zephyr: Add boards files for rp2350's m33 on pico 2.
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Adds overlay and conf for RPi Pico2 ARM cpu on the zephyr port.

Signed-off-by: Vdragon <mail@massdriver.space>
2025-10-11 10:19:05 +11:00
Vdragon 01448d03f3 zephyr: Remove defaulting to newlib.
Remove CONFIG_NEWLIB_LIBC=y, as it seems it is now unecessary.

Signed-off-by: Vdragon <mail@massdriver.space>
2025-10-11 10:19:05 +11:00
Damien George b68574e591 zephyr/main: Replace mp_stack_set with mp_cstack_init_with_sp_here.
Signed-off-by: Damien George <damien@micropython.org>
2025-10-10 14:49:09 +11:00
Ayush Singh a79e1fd501 zephyr/boards: Add PocketBeagle 2 rev A1 A53 support.
This target runs on all 4 cores.  Only GPIO, I2C and UART are supported
right now.

Signed-off-by: Ayush Singh <ayush@beagleboard.org>
2025-10-03 23:12:51 +10:00
Damien George 798173dce5 zephyr/mpconfigport: Enable MICROPY_PY_MATH_POW_FIX_NAN.
This is needed because zephyr incorrectly has `pow(-1, NaN) = 1`.

Signed-off-by: Damien George <damien@micropython.org>
2025-10-01 23:59:15 +10:00
Chris Webb 81985d20c9 shared/runtime/mpirq: Check separate hard IRQ stack correctly.
On the zephyr port, hard IRQ handlers run with a separate stack on a
different thread, so each call to mp_irq_dispatch() and mp_irq_handler()
has to be wrapped with adjustments to the stack-limit checker.

Move these adjustments into the shared mp_irq_dispatch(), introducing
MICROPY_STACK_SIZE_HARD_IRQ which a port can define to non-zero if it
uses a separate stack for hard IRQ handlers. We only need wrap the hard
dispatch case. This should reduce binary size on zephyr without affecting
other ports.

Signed-off-by: Chris Webb <chris@arachsys.com>
2025-09-25 23:59:24 +10:00
Chris Webb c617ed159a zephyr/machine_timer: Support hard IRQ timer callbacks.
machine.Timer() has inconsistent behaviour between ports: some run
callbacks in hard IRQ context whereas others schedule them like soft IRQs.

As on the rp2 port, add support to the zephyr port for a hard= argument
to explicitly choose between these, setting the default to False to match
the existing behaviour.

Adjust the stack-limit check to use the ISR stack while the callback is
dispatched so that hard IRQ callbacks work, as with machine_pin.c and
machine_i2c_target.c IRQ callbacks.

Signed-off-by: Chris Webb <chris@arachsys.com>
2025-09-25 23:59:24 +10:00
Damien George bfda577a3e zephyr/CMakeLists.txt: Enable sys.implementation._build.
This is, eg, `ZEPHYR_NUCLEO_WB55RG`.

Signed-off-by: Damien George <damien@micropython.org>
2025-09-08 11:24:32 +10:00
Damien George a3f9dec788 py/mpconfig: Enable the sys module at all feature levels by default.
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This is a pretty fundamental module, and even minimal ports like unix and
zephyr minimal have it enabled.  So, enabled it by default at the lowest
feature level.

Most things in the `sys` module are configurable, and off by default, so it
shouldn't add too much to ports that don't already have it enabled (which
is just the minimal port).

Also note that `sys` is still disabled on the bare-arm port, to keep that
ultra minimal.  It means we now have bare-arm without `sys` and the minimal
port with `sys`.  That will allow different code size comparisons if/when
new `sys` features are added.

Signed-off-by: Damien George <damien@micropython.org>
2025-08-22 13:31:10 +10:00
Maureen Helm afa7265ffa zephyr: Upgrade to Zephyr v4.2.0.
Updates the Zephyr port build instructions and CI to use the latest
Zephyr release tag.

Tested on max32690fthr and frdm_k64f.

Signed-off-by: Maureen Helm <maureen.helm@analog.com>
2025-08-16 15:10:30 +10:00
Damien George 0c50343145 zephyr/machine_i2c_target: Implement I2CTarget class.
Tested and working on rpi_pico and nucleo_wb55rg.

Signed-off-by: Damien George <damien@micropython.org>
2025-08-01 23:03:17 +10:00
Damien George 4360da1684 zephyr/mpconfigport: Use MICROPY_CONFIG_ROM_LEVEL_BASIC_FEATURES.
This commit adjusts the configuration of the standard zephyr build to use
MICROPY_CONFIG_ROM_LEVEL_BASIC_FEATURES.  That's a lot cleaner than
explicitly enabling/disabling options, and allows boards to more easily
fine-tune the settings, eg select a different feature level.

Features that are now enabled are:
- async/await keyword support
- `filter`, `property` and `reversed` builtins
- `range` attributes
- `str.count()` method
- `array` module with `array.array` object
- `collections` module with `collections.namedtuple` object
- `struct` module with everything
- `id = const()` and constant folding in the compiler

Bulding qemu_cortex_m3, the code size was originally:

    Memory region         Used Size  Region Size  %age Used
               FLASH:      193864 B       256 KB     73.95%
                 RAM:       61992 B        64 KB     94.59%

and with this commit it is now:

    Memory region         Used Size  Region Size  %age Used
               FLASH:      200698 B       256 KB     76.56%
                 RAM:       61992 B        64 KB     94.59%

That's a mild increase of +6834 bytes flash usage for a good selection of
new features.

Signed-off-by: Damien George <damien@micropython.org>
2025-07-31 10:48:56 +10:00
Damien George 68434b4be7 zephyr/mpconfigport_minimal: Use MICROPY_CONFIG_ROM_LEVEL_MINIMUM.
This commit adjusts the configuration of the minimal zephyr build to use
MICROPY_CONFIG_ROM_LEVEL_MINIMUM.  That's a lot cleaner than explicitly
enabling/disabling options.

Prior to this change the minimal build for qemu_cortex_m3 had size:

    Memory region         Used Size  Region Size  %age Used
               FLASH:      114436 B       256 KB     43.65%
                 RAM:       26320 B        64 KB     40.16%

and had the following test results (running using the CI settings, ie
`-d basics float --exclude inf_nan_arith`):

    352 tests performed (7092 individual testcases)
    352 tests passed
    254 tests skipped: ...

With the changes here the qemu_cortex_m3 size is now:

    Memory region         Used Size  Region Size  %age Used
               FLASH:       99428 B       256 KB     37.93%
                 RAM:       26312 B        64 KB     40.15%

That's a good decrease of about 15k firmware size.  And the test suite
still passes with:

    342 tests performed (6776 individual testcases)
    341 tests passed
    265 tests skipped: ...

Signed-off-by: Damien George <damien@micropython.org>
2025-07-31 10:48:56 +10:00
Damien George 9a9e5529af zephyr/machine_pin: Retry configuring gpio with just GPIO_OUTPUT.
Some targets like frdm_k64f don't support GPIO_OUTPUT|GPIO_INPUT, so just
use GPIO_OUTPUT in those cases (it seems they still support reading the
current output state even when configured only as GPIO_OUTPUT, unlike other
targets which require both settings).

Signed-off-by: Damien George <damien@micropython.org>
2025-07-08 11:15:11 +10:00
Damien George bf432a3e0f zephyr/machine_timer: Make machine.Timer id argument optional.
With a default of -1, for soft timer.  This matches other ports, and the
`extmod/machine_timer.c` implementation.

This change allows the `tests/extmod/machine_soft_timer.py` test to pass.

Signed-off-by: Damien George <damien@micropython.org>
2025-07-08 11:15:11 +10:00
Damien George 0fd65c44cf zephyr/mpconfigport: Enable emergency exception buffer.
Needed to pass exception tests.

Signed-off-by: Damien George <damien@micropython.org>
2025-07-08 11:15:11 +10:00
Damien George 6881618307 zephyr/mpconfigport: Enable sys.maxsize.
Costs +48 bytes.  Useful to introspect the target.

Signed-off-by: Damien George <damien@micropython.org>
2025-07-08 11:15:11 +10:00
Damien George ec65cac971 zephyr/boards/rpi_pico: Add board configuration for rpi_pico.
Although the rpi_pico can already build and run with the zephyr port, this
configuration improves it in a number of ways:
- Use the USB CDC ACM as the REPL, rather than just a UART.
- Enable I2C and SPI, and add I2C1.
- Enable a filesystem, which matches exactly the rp2 port's RPI_PICO
  configuration.  So switching between zephyr and rp2 is possible and will
  retain the filesystem.
- Make the MicroPython GC heap make the most use of the available RAM.

Signed-off-by: Damien George <damien@micropython.org>
2025-07-08 11:15:11 +10:00
Damien George 0faddb3c8a zephyr/boards/nucleo_wb55rg: Enable BLE, I2C, SPI and add filesystem.
Bluetooth works well now on this board, so enable all supported features.

Also increase the MicroPython GC heap size to make use of the available
RAM.

Unfortunately the filesystem does not match the stm32 port's NUCLEO_WB55
configuration.  That's not possible to do because stm32 uses a 512 byte
flash erase size, while zephyr uses 4096 bytes.  But at least here in
zephyr there's now a sizable and usable filesystem.

Signed-off-by: Damien George <damien@micropython.org>
2025-07-08 11:15:11 +10:00
Damien George 35880d432a zephyr/boards/frdm_k64f: Improve board configuration.
Changes:
- Enable CONFIG_PWM so that `machine.PWM()` works.
- Increase MicroPython GC heap size.

Signed-off-by: Damien George <damien@micropython.org>
2025-07-08 11:15:11 +10:00
Damien George d0ccaff5b7 zephyr/mpconfigport: Enable MICROPY_NLR_THUMB_USE_LONG_JUMP.
Needed for some ARMv6M boards, eg rpi_pico.

Signed-off-by: Damien George <damien@micropython.org>
2025-07-08 11:15:11 +10:00
Damien George 07285323cf zephyr/mpconfigport: Enable import of mpy and a few related features.
Support for importing .mpy files is quite fundamental to MicroPython these
days, eg it allows installing more efficient .mpy code via "mip install"
(and installing `unittest` only works with the .mpy version because the .py
version uses f-strings, which are not enabled on the zephyr port).  So
enable it generally for use by all boards.

As part of this, also enable:
- min/max: needed by `micropython/import_mpy_invalid.py`, and widely used
- sys.modules: needed by `run-tests.py` to run .mpy tests with --via-mpy
- io module: needed to run .mpy tests, and useful for `io.IOBase`
- array slice assign: needed to run .mpy tests, and generally useful as a
  way to do a memory copy.

Signed-off-by: Damien George <damien@micropython.org>
2025-07-08 11:15:11 +10:00
Damien George 16b00cd6e7 zephyr/mpconfigport: Enable machine.SoftI2C and machine.SoftSPI.
These work now that the C-level pin HAL is implemented.

Signed-off-by: Damien George <damien@micropython.org>
2025-07-08 11:15:11 +10:00
Damien George 19814bf50f zephyr/mphalport: Implement C-level pin HAL.
Signed-off-by: Damien George <damien@micropython.org>
2025-07-08 11:15:11 +10:00