Commit Graph

18322 Commits

Author SHA1 Message Date
Jeff Epler 803a4d7717 py/objtemplate: Correctly cast qstr literals when printing.
qstr literals are of type qstr_short_t (aka uint16_t) for efficiency, but
when the type is passed to `mp_printf` it must be cast explicitly to type
`qstr`.

These locations were found using an experimental gcc plugin for `mp_printf`
error checking.

Signed-off-by: Jeff Epler <jepler@unpythonic.net>
2026-03-22 22:59:15 +11:00
Damien George 702f15ab98 stm32/boards/PYBD_SF2: Free up some space in internal flash.
With the recent addition of `machine.PWM` and `machine.CAN`, the internal
flash of PYBD_SF3 overflows by about 300 bytes.

This commit moves the inline assembler compiler functions from internal to
external QSPI flash.  That frees up about 3k internal flash, and shouldn't
affect performance.

Signed-off-by: Damien George <damien@micropython.org>
2026-03-22 00:04:52 +11:00
Damien George 82e44e07e7 stm32/mpthreadport: Increase minimum thread stack size to 2.5k.
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2.25k Seems necessary so it doesn't crash `thread/thread_stacksize1.py`.
But 2.5k gives a little extra headroom to make that test actually pass.

Signed-off-by: Damien George <damien@micropython.org>
2026-03-22 00:03:20 +11:00
iabdalkader 134bf4d847 alif/irq: Add missing IRQ priorities.
Add DMA, NPU and PDM IRQ priorities to irq.h.

Signed-off-by: iabdalkader <i.abdalkader@gmail.com>
2026-03-21 23:58:16 +11:00
Jack Whitham 8a3c9f0bf2 extmod/modlwip: Call user callback on newly-received UDP or RAW packet.
User callbacks allow code to respond to incoming messages without blocking
or polling.  User callbacks are optional, and if no callback is registered
the code has no effect.

The mechanism is the same as for TCP: when a connection is accepted or a
TCP packet is received, a user callback is executed.

Fixes issue #3594.

Signed-off-by: Jack Whitham <jack.d.whitham@gmail.com>
2026-03-21 19:21:46 +11:00
Damien George 406356ec8b extmod/modlwip: Ensure socket is finalisable if error during creation.
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Because socket objects have a finaliser they must be created carefully, in
case an exception is raised during the population of their members, eg
invalid input argument or out-of-memory when allocating additional arrays.

Prior to the fix in this commit, the finaliser would crash due to
`incoming.udp_raw.array` being an invalid pointer in the following cases:
- if a SOCK_RAW was created with a proto argument that was not an integer
- if a SOCK_DGRAM or SOCK_RAW was created where the allocation of
  `lwip_incoming_packet_t` failed
- if an integer was passed in for the socket type but it was not one of
  SOCK_STREAM, SOCK_DGRAM or SOCK_RAW

Furthermore, if the allocation of `lwip_incoming_packet_t` failed then it
may have led to corruption within lwIP when freeing `socket->pcb.raw`
because that PCB was not fully set up with its callbacks.

This commit fixes all of these issues by ensuring:
- `pcb.tcp` and `incoming.udp_raw.array` are initialised to NULL early on
- the proto argument is parsed before allocating the PCB
- the allocation of `lwip_incoming_packet_t` occurs befor allocating the
  PCB
- `incoming.udp_raw.array` is checked for NULL in the finaliser code

The corresponding test (which already checked most of these causes of
failure) has been updated to include a previously-uncovered scenario.

Signed-off-by: Damien George <damien@micropython.org>
2026-03-21 16:39:40 +11:00
Alessandro Gatti b3d88cf210 extmod/nimble/modbluetooth_nimble: Handle port init failures.
This commit fixes an issue related to the NimBLE initialisation
procedure in low memory environments on ESP32 boards.

MicroPython uses at least two different NimBLE stacks across the
supported ports, mynewt (imported as an external library), and the one
provided by Espressif in their own SDKs.  The problem is that these two
ports differ in the signature for `nimble_port_init(void)`, with mynewt
returning `void`, and Espressif's returning a status code on failure.

On ESP32 boards, allocating almost all the available heap and then
turning on the Bluetooth stack would trigger a failure in the NimBLE
initialisation function that is not handled by the NimBLE integration
code, as there's no expectation of a recoverable condition.  Since the
stack initialisation would progress, then uninitialised memory accesses
crash the board.

Since we cannot really modify neither mynewt nor Espressif SDKs, the
next best thing is to provide two conditional initialisation paths
depending on a configuration setting.  This would make Espressif ports
recover from a failed initialisation whilst retaining the existing
behaviour on other ports.

This fixes #14293.

Signed-off-by: Alessandro Gatti <a.gatti@frob.it>
2026-03-21 16:27:37 +11:00
Alessandro Gatti b1d635fa82 docs/reference/speed_python: Update native emitter limitations.
This commit updates the listed limitations of the native emitter in the
documentation related to how to increase speed of python code.

Context managers are supported, as in functions marked as native can use
the `with` statement in regular code.  Generators can be used in native
functions both on the emitting (ie. `yield <whatever>`) and on the
receiving end.

Signed-off-by: Alessandro Gatti <a.gatti@frob.it>
2026-03-21 16:23:28 +11:00
Damien George e0beace19f LICENSE,docs: Update copyright year range to include 2026.
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Signed-off-by: Damien George <damien@micropython.org>
2026-03-20 13:18:37 +11:00
Angus Gratton 2ccf78ae19 ci,esp32: Build oldest & newest ESP-IDF versions in CI.
Intended to catch problems where new features don't build
in old ESP-IDF.

Includes major refactor to the GitHub Actions Workflow for
esp32 port, including making a reusable workflow for both
Code Size and ESP32 build jobs.

This work was funded through GitHub Sponsors.

Signed-off-by: Angus Gratton <angus@redyak.com.au>
2026-03-20 12:42:52 +11:00
Damien George 8f24c86263 tests/extmod_hardware/machine_pwm.py: Convert test to use target_wiring.
Signed-off-by: Damien George <damien@micropython.org>
2026-03-20 11:37:15 +11:00
Damien George 47871a4276 docs/library/machine.PWM: Document hardware PWM layout.
Signed-off-by: Damien George <damien@micropython.org>
2026-03-20 11:37:15 +11:00
Damien George ef2b30b560 docs/library/machine.PWM: Add alif,stm32 to list of ports with invert.
Signed-off-by: Damien George <damien@micropython.org>
2026-03-20 11:37:15 +11:00
Damien George 98ab12a491 stm32/boards/stm32n657_af.csv: Add TIM alt funcs to PA0-PA3.
Signed-off-by: Damien George <damien@micropython.org>
2026-03-20 11:37:15 +11:00
Damien George 2b64d6d023 stm32/boards/stm32f091_af.csv: Split TIM2_CH1 from TIM2_ETR.
So that TIM2_CH1 can be used.

Signed-off-by: Damien George <damien@micropython.org>
2026-03-20 11:37:15 +11:00
Damien George af31472e3d stm32/boards: Disable some features on boards with small flash.
This allows the newly-added `machine.PWM` class to fit on these boards,
which is arguably more useful than the features disabled in this commit.

Signed-off-by: Damien George <damien@micropython.org>
2026-03-20 11:37:15 +11:00
Damien George 1d5073f609 extmod/machine_pwm: Fix use of object when pointer is needed.
Signed-off-by: Damien George <damien@micropython.org>
2026-03-20 11:37:15 +11:00
Damien George 142f8b96bf tests/extmod_hardware/machine_pwm.py: Add pin settings for stm32 port.
Signed-off-by: Damien George <damien@micropython.org>
2026-03-20 11:37:15 +11:00
Damien George 6e9d35b688 tests/extmod_hardware/machine_pwm.py: Round expected timing calculation.
To be slightly more accurate computing the expected low/high times for the
PWM output.

Signed-off-by: Damien George <damien@micropython.org>
2026-03-20 11:37:14 +11:00
Damien George 094c268ff1 stm32/machine_pwm: Use heuristic to assign TIMx_CHy to a pin.
When assigning a TIMx_CHy to a pin, the second available alternate function
is chosen (or the first if there is only one).  This gives better overall
static allocation of TIM's to pins.

On most MCUs (eg F4, F7, H5, H7) picking the second gives TIM5_CH[1-4] for
PA0-PA3, and TIM5 is a 32-bit timer.  That leaves TIM2 (also usually on
PA0-PA3) for other pins that only have TIM2.

For STM32G0, STM32L432 and STM32L452 the heuristic is to simply use the
first available alternate function because that gives TIM2 (a 32-bit timer)
on PA0-PA3.

The above heuristic guarantees that PA0-PA3 always get a 32-bit timer on
all supported MCUs.

Signed-off-by: Damien George <damien@micropython.org>
2026-03-20 11:26:57 +11:00
Damien George dbe6a11670 stm32/machine_pwm: Implement machine.PWM class.
This commit implements the standard `machine.PWM` class on stm32, using the
common bindings in `extmod/machine_pwm.c`.  Features implemented are:
- construct a PWM object from a pin, with automatic selection of TIM
  instance and channel;
- get and set freq, duty_u16 and duty_ns;
- optionally invert the output.

The PWM objects are static objects (partly in ROM, partly in RAM) so
creating a PWM instance on the same pin will return exactly the same
object.  That's consistent with other peripherals in the stm32 port, and
consistent with other PWM implementations (eg rp2).

When creating a PWM object on a pin, if that pin has multiple TIM instances
then only the first will be selected.  A future extension could allow
selecting the TIM/channel (eg similar to how ADCBlock allows selecting an
ADC).

Signed-off-by: Damien George <damien@micropython.org>
2026-03-20 11:24:19 +11:00
Damien George 2d3241f34c stm32/timer: Expose functions to convert id to reg and enable TIM clock.
This functionality already exists in the TIM code, and can be reused by the
upcoming PWM implementation.

Signed-off-by: Damien George <damien@micropython.org>
2026-03-20 10:42:25 +11:00
Damien George e74f3d5eaa stm32/timer: Use HAL macro to determine if TIM is 32-bit.
Some MCUs (eg N6) have more timers which are 32-bit, and it's best to use
this macro to work that out.

Signed-off-by: Damien George <damien@micropython.org>
2026-03-20 10:42:25 +11:00
Angus Gratton c802a13fb6 stm32: Fix printing value of pyb.CAN auto_restart on FDCAN hardware.
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The DAR register field is for auto-retransmit, FDCAN doesn't support
automatic restart to clear Bus Off.

This work was funded through GitHub Sponsors.

Signed-off-by: Angus Gratton <angus@redyak.com.au>
2026-03-20 01:16:25 +11:00
Angus Gratton 6cac2d275d stm32: Add machine.CAN implementation.
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Implemented according to API docs in a parent comment.

Adds new multi_extmod/machine_can_* tests which pass when testing between
NUCLEO_G474RE, NUCLEO_H723ZG and PYBDV11.

This work was mostly funded through GitHub Sponsors.

Signed-off-by: Angus Gratton <angus@redyak.com.au>
2026-03-19 17:36:50 +11:00
Angus Gratton 6f835b365a stm32: Implement index-aware STM32G4 FDCAN HAL TX functions.
These are oddly missing from the STM32G4 HAL, but the
reference manual describes being able to use them and
the implementations seem to work as expected.

Note that unlike STM32H7 it doesn't seem like we must use this approach,
because HAL_FDCAN_AddMessageToTxFifoQ() does seem to not have the issues
with priority inversion seen on the H7. However it's simpler to use the
same API for both...

Signed-off-by: Angus Gratton <angus@redyak.com.au>
Signed-off-by: Angus Gratton <angus@redyak.com.au>
2026-03-19 17:36:46 +11:00
Angus Gratton 022570445b extmod,docs: Add generic machine.CAN helpers & docs.
API is different to the original machine.CAN proposal, as numerous
shortcomings were found during initial implementation.

This work was funded through GitHub Sponsors.

Signed-off-by: Angus Gratton <angus@redyak.com.au>
2026-03-19 17:36:46 +11:00
Angus Gratton 6768325ea3 stm32: Add can_get_state() function, use from pyb.CAN.
This work was funded through GitHub Sponsors.

Signed-off-by: Angus Gratton <angus@redyak.com.au>
2026-03-19 15:37:19 +11:00
Angus Gratton cda49bed27 py/objlist,stm32,esp32: Add helpers for creating/ensuring list args.
Simplifies the pattern of an optional arg which can be a list of at
least a certain length, otherwise one is lazily initialised.

Modify pyb.CAN and ESP-NOW APIs to use the helper. Note this changes
the return type of pyb.CAN.recv() from tuple to list.

This work was funded through GitHub Sponsors.

Signed-off-by: Angus Gratton <angus@redyak.com.au>
2026-03-19 15:37:19 +11:00
Angus Gratton d1c936db73 stm32: Expose FDCAN2 on board NUCLEO_G474RE.
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This work was funded through GitHub Sponsors.

Signed-off-by: Angus Gratton <angus@redyak.com.au>
2026-03-19 09:37:19 +11:00
Angus Gratton a906cfbb4b stm32/can: Clarify can_clearfilter() arguments.
The function arguments mean totally different things for Classic vs FDCAN
hardware, but the argument name wasn't particularly clear for either.

This commit shouldn't really change the binary firmware at all.

This work was funded through GitHub Sponsors.

Signed-off-by: Angus Gratton <angus@redyak.com.au>
2026-03-19 09:37:19 +11:00
Angus Gratton 4b339ee7dc stm32/pyb_can: Fix initialising CAN2 clearing CAN1 filters.
Closes #18922

Signed-off-by: Angus Gratton <angus@redyak.com.au>
2026-03-19 09:37:19 +11:00
Angus Gratton bac45e5aaf tests/ports/stm32/can: Update pyb.CAN tests for FDCAN.
Also rename the prefix from can to pyb_can, in anticipation
of machine.CAN tests.

Signed-off-by: Angus Gratton <angus@redyak.com.au>
2026-03-19 09:37:19 +11:00
Angus Gratton f625d2ed6c esp32: Fix build for ESP-IDF version 5.3.
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This work was funded through GitHub Sponsors.

Signed-off-by: Angus Gratton <angus@redyak.com.au>
2026-03-18 17:02:09 +11:00
Angus Gratton fe32e1d3a1 esp32: Drop support for ESP-IDF <v5.3.
Not currently building, and too many versions to concurrently support.

This work was funded through GitHub Sponsors.

Signed-off-by: Angus Gratton <angus@redyak.com.au>
2026-03-18 17:02:09 +11:00
Angus Gratton 82c6b0e594 esp32: Only check the lockfile currently used by the build.
Small tweak to avoid changes in other targets' lockfiles from printing
warnings when building esp32 port.

This work was funded through GitHub Sponsors.

Signed-off-by: Angus Gratton <angus@redyak.com.au>
2026-03-18 17:00:38 +11:00
Angus Gratton d2cda57e9d rp2/rp2_dma: Disable DMA IRQ before clearing handler function.
Both the overall IRQ line and the per-channel IRQ, for good measure.

Otherwise, soft reset will remove the handler before the finaliser for the
DMA object(s) run and trigger IRQs if the channel is still active.

Closes #18765

This work was funded through GitHub Sponsors.

Signed-off-by: Angus Gratton <angus@redyak.com.au>
2026-03-18 16:58:11 +11:00
Angus Gratton 06dbc1f486 github: Revert "Run esp32&zephyr daily to keep mstr branch caches hot".
This reverts commit 046013a1ff.

Looks like since the latest round of GitHub Actions updates, the
Cache LRU algorithm is working as designed again.

This work was funded through GitHub Sponsors.

Signed-off-by: Angus Gratton <angus@redyak.com.au>
2026-03-18 16:56:41 +11:00
Alessandro Gatti df9b714af4 docs/library/re: Document non-capturing grouping.
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This commit updates the documentation for the `re` library, officially
documenting non-capturing grouping rules (ie. "(?:...)").

The documentation mistakenly marked that feature as not supported, but
is is indeed supported in the current iteration of the regex library.

This closes #18900.

Signed-off-by: Alessandro Gatti <a.gatti@frob.it>
2026-03-17 16:14:11 +11:00
Didier C e4920d63f7 docs/esp32: Replace 'esptool.py' by 'esptool' in command line example.
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'esptool.py' is deprecated, use 'esptool' instead.

Signed-off-by: europrimus <europrimus-dev@c-f.me>
2026-03-16 14:39:06 +11:00
Damien George 4625f97d09 README: Add a section describing MicroPython's values.
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This commit adds a section to the top-level README describing MicroPython's
general design philosophy and core values.

Thanks to @projectgus who suggested I add this.

Signed-off-by: Damien George <damien@micropython.org>
2026-03-11 16:36:38 +11:00
Damien George fc5195bfad README: Remove warning about the project being in beta stage.
It's been over 12 years and the project is relatively stable now.

Signed-off-by: Damien George <damien@micropython.org>
2026-03-11 15:33:49 +11:00
Andrew Leech 43199278eb tests/run-tests.py: Ignore known-flaky test failures.
Reclassify failures of tests listed in flaky_tests_to_ignore as "ignored"
instead of retrying them. Ignored tests still run and their output is
reported, but they don't affect the exit code. The ci.sh --exclude lists
for these tests are removed so they run normally.

Signed-off-by: Andrew Leech <andrew.leech@planet-innovation.com>
2026-03-11 14:56:04 +11:00
EngWill ad054fc520 rp2/boards/WAVESHARE_RP2040_ZERO: Add Waveshare RP2040 Zero board.
Signed-off-by: EngWill <646689853@qq.com>
Signed-off-by: Damien George <damien@micropython.org>
2026-03-11 12:38:55 +11:00
EngWill 8cbd320809 rp2/boards/WAVESHARE_RP2040_PLUS: Add Waveshare RP2040 Plus 4M and 16M.
Includes 4MB and 16MB variants.

Signed-off-by: EngWill <646689853@qq.com>
Signed-off-by: Damien George <damien@micropython.org>
2026-03-11 12:38:20 +11:00
EngWill 1968b964f3 rp2/boards/WAVESHARE_RP2040_LCD_0_96: Add Waveshare RP2040 LCD 0.96.
Signed-off-by: EngWill <646689853@qq.com>
Signed-off-by: Damien George <damien@micropython.org>
2026-03-11 12:37:04 +11:00
Ned Konz 20ffe6f139 rp2/boards/WAVESHARE_RP2350B_CORE: Add Waveshare RP2350B Core board.
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Signed-off-by: Ned Konz <ned@metamagix.tech>
2026-03-11 11:26:36 +11:00
sync-on-luma 3a24bdbe71 rp2/boards/CYTRON_MOTION_2350_PRO: Add Cytron Motion 2350 Pro board.
Signed-off-by: sync-on-luma <spencerc@ayershale.net>
2026-03-11 11:22:02 +11:00
Jacob Williams 10af0a2510 rp2/boards/CYTRON_NANOXRP_CONTROLLER: Add support for NanoXRP board.
The NanoXRP is a small version of the XRP Robot using rp2040.

Signed-off-by: Jacob Williams <jwilliams@experiential.bot>
2026-03-11 11:19:13 +11:00
Koudai Aono 68c2d4e457 docs/library: Document string.templatelib module.
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This documents all of the available functionality in the new
`string.templatelib` module, which is associated with template strings.

Signed-off-by: Koudai Aono <koxudaxi@gmail.com>
Signed-off-by: Damien George <damien@micropython.org>
2026-03-09 23:47:33 +11:00