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Author	SHA1	Message	Date
Daniël van de Giessen	e8992ebc78	esp32/machine_uart: Allow passing -1 to specify pin will be unused. ... Signed-off-by: Daniël van de Giessen <daniel@dvdgiessen.nl>	2026-04-07 15:08:21 +10:00
Daniël van de Giessen	b6bc2d473c	esp32/adc: Raise error if ADC read result is invalid. ... Signed-off-by: Daniël van de Giessen <daniel@dvdgiessen.nl>	2026-04-07 14:57:36 +10:00
Jeff Epler	e29bcdcb7b	tests/cpydiff: Add test file for annotation expressions. ... Document the behavior on expression annotations rejected by CPython but accepted by MicroPython. Closes issue #19031. Signed-off-by: Jeff Epler <jepler@unpythonic.net>	2026-04-07 14:45:09 +10:00
Weixie Cui	c3b3f201c4	py/objint: Fix comment for true operand in binary op extra cases. ... The comment incorrectly said true acts as 0; the implementation passes small int 1, matching Python bool semantics. Signed-off-by: Weixie Cui <cuiweixie@gmail.com>	2026-04-07 14:15:05 +10:00
Andrew Leech	47fc0d5b81	docs/library: Document Pin.board and Pin.cpu attributes. ... Add an Attributes section to the machine.Pin reference describing the Pin.board and Pin.cpu class attributes, their purpose, availability across ports, and their role in string-based pin name resolution. Signed-off-by: Andrew Leech <andrew.leech@planetinnovation.com.au>	2026-04-07 13:58:11 +10:00
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
Jeff Epler	8abca6bacb	py/objexcept: Use mp_obj_get_type_str when printing exception name. ... Saves a few bytes of code. Signed-off-by: Jeff Epler <jepler@unpythonic.net>	2026-04-07 13:37:07 +10:00
Jeff Epler	4fe08ff16b	all: Avoid qstr_str calls when printing a qstr. ... The `%q` formatter of mp_printf can be used instead, and may save a small amount of code. Signed-off-by: Jeff Epler <jepler@unpythonic.net>	2026-04-07 13:36:34 +10:00
Andrew Leech	c20302dbb2	shared/netutils/dhcpserver: Set default DNS to the server address. ... This sets the DHCP server's own IP address as the default DNS server when no explicit DNS is configured, providing a more complete network configuration for DHCP clients. Signed-off-by: Andrew Leech <andrew.leech@planetinnovation.com.au>	2026-04-07 13:33:32 +10:00
Damien George	367178fce7	all: Bump version to 1.29.0-preview. ... Signed-off-by: Damien George <damien@micropython.org> v1.29.0-preview	2026-04-07 13:07:26 +10:00
Damien George	e0e9fbb17e	all: Bump version to 1.28.0. ... Signed-off-by: Damien George <damien@micropython.org> v1.28.0	2026-04-06 23:12:49 +10:00
Damien George	e8a3ee0342	esp32/esp32_common.cmake: Add missing C flags to user C module sources. ... On the esp32 port when adding a user C module, the source code for the user C module was being compiled without certain C flags. Notably the optimisation flag was missing. This commit fixes that by explicitly adding the missing C flags to the compilation of user C modules. The missing flags were the following, which are now included when building user C modules (found by inspecting the generated CMake files when building with ulab): -ffunction-sections -fdata-sections -Wall -Werror=all -Wno-error=unused-function -Wno-error=unused-variable -Wno-error=unused-but-set-variable -Wno-error=deprecated-declarations -Wextra -Wno-error=extra -Wno-unused-parameter -Wno-sign-compare -Wno-enum-conversion -gdwarf-4 -ggdb -mdisable-hardware-atomics -O2 -fmacro-prefix-map=micropython/ports/esp32=. -fmacro-prefix-map=espressif/esp-idf=/IDF -fstrict-volatile-bitfields -fno-jump-tables -fno-tree-switch-conversion See related issue #18880. Work done in collaboration with @andrewleech. Signed-off-by: Damien George <damien@micropython.org>	2026-04-01 14:44:04 +11:00
Damien George	d41b8dc52e	py/emitglue: Fix macro logic that selects cache flushing code. ... This fixes a regression made by 9e9da6cb0d. There are two issues here: 1. `MPY_FEATURE_ARCH` and `MP_NATIVE_ARCH_xxx` are not visible in this file because `py/persistentcode.h` is not included. 2. Even if they were visible the macro logic will not work because `MP_NATIVE_ARCH_xxx` are enum values and cannot be used in #if logic. What this means is that the first #if is always true, so there is no cache flushing on ARM (non-Thumb) or RISC-V targets. This breaks native code on, eg, ESP32-P4. The fix here aims to simplify the logic by using built-in compiler defines to select the target: - On an ARM Thumb target with `__ICACHE_PRESENT` enabled, it will flush the cache. - On an ARM (non-Thumb) target, it will prefer `__builtin___clear_cache()` if possible, otherwise it will use inline assembler. - On a RISC-V target, it will use `MP_HAL_CLEAN_DCACHE()` if that macro is defined (that's only on ESP32-P4 at the moment). The logic should be the same as before, except for the cases where an emitter is enabled on a mismatching architecture. For example, if `MICROPY_EMIT_THUMB` and/or `MICROPY_EMIT_INLINE_THUMB` were enabled on a non-Thumb target, previously that will try to generate code to flush caches (which doesn't really make sense), but now it will not. This actually happened for `mpy-cross` which does enable all the emitters, and prior to this fix would follow the Thumb path, but not generate any code because `__ICACHE_PRESENT` is disabled (at least when building `mpy-cross` on x86). Signed-off-by: Damien George <damien@micropython.org>	2026-03-31 00:03:10 +11:00
Matt Trentini	2dc2e30d98	esp32/boards/SEEED_XIAO_ESP32C6: Add new XIAO board definition. ... Signed-off-by: Matt Trentini <matthew.trentini@planetinnovation.com.au> Signed-off-by: Matt Trentini <matt.trentini@gmail.com>	2026-03-25 23:57:07 +11:00
Dryw Wade	f4d2447174	esp32/boards/SPARKFUN_THINGPLUS_ESP32C5: Add SF Thing Plus ESP32-C5. ... Signed-off-by: Dryw Wade <dryw.wade@sparkfun.com>	2026-03-25 23:55:21 +11:00
Matt Trentini	ac48088749	rp2/boards/SEEED_XIAO_RP2040: Add XIAO RP2040 board definition. ... Signed-off-by: Matt Trentini <matt.trentini@gmail.com>	2026-03-25 23:48:48 +11:00
Damien George	93201ff2d1	lib/cyw43-driver: Update driver to latest version v1.1.1. ... Includes a fix to STA teardown to deinit tcpip and clear itf_state. Signed-off-by: Damien George <damien@micropython.org>	2026-03-25 23:08:31 +11:00
Damien George	bce854928d	tests/feature_check/tstring.py: Remove check for string.templatelib. ... If a port enables t-strings then it is required to have the `string.templatelib` package (at least to run the tests). That's automatically the case if `MICROPY_PY_TSTRINGS` is enabled. If a port freezes in the micropython-lib `string` extension package then the latest version of this package will include the built-in `string.templatelib` classes. So the feature check for t-strings no longer needs to check if they are available. Signed-off-by: Damien George <damien@micropython.org>	2026-03-24 23:56:05 +11:00
Damien George	85e8f6189e	lib/micropython-lib: Update submodule to latest. ... This brings in: - sdcard: Send stop bit after multi-block read/write - sdcard: Compute CRC7 for all SPI commands - sdcard: Add read/write speed test to sdtest - lsm6dsox: Add pedometer support - lsm6dsox: Add pedometer example code - unix-ffi/re: Handle PCRE2_UNSET in group and groups methods - unix-ffi/re: Add tests for empty string match in ffi regex - unix-ffi/machine: Retrieve a unique identifier if one is known - senml/docs: Correct capitalization of 'MicroPython' - unix-ffi/_libc: Extend FreeBSD libc versions range - string: Convert string module to package and import templatelib Signed-off-by: Damien George <damien@micropython.org>	2026-03-24 23:38:44 +11:00
Damien George	5c00edcee2	tools/ci.sh: Increase qemu_arm test run timeout. ... It takes longer now that weakref is enabled in the coverage build. Signed-off-by: Damien George <damien@micropython.org>	2026-03-22 23:19:28 +11:00
Damien George	44d8f70a8e	docs/library/weakref: Add documentation for weakref module. ... Signed-off-by: Damien George <damien@micropython.org>	2026-03-22 23:19:28 +11:00
Damien George	6f96d260e6	webassembly/variants/pyscript: Enable weakref module and add tests. ... The webassembly port needs some additional weakref tests due to the fact that garbage collection only happens when Python execution finishes and JavaScript resumes. The `tests/ports/webassembly/heap_expand.py` expected output also needs to be updated because the amount of GC heap got smaller (weakref WTB takes some of the available RAM). Signed-off-by: Damien George <damien@micropython.org>	2026-03-22 23:13:26 +11:00
Damien George	f83f363bb8	webassembly/Makefile: Add test//% target. ... Following a69425b533, this is a convenient way to run a subset of tests. Signed-off-by: Damien George <damien@micropython.org>	2026-03-22 23:06:07 +11:00
Damien George	2cca3481f2	tests/basics: Add test for weakref having exception in callback. ... Needs a native exp file because native code doesn't print line numbers in the traceback. Signed-off-by: Damien George <damien@micropython.org>	2026-03-22 23:06:05 +11:00
Damien George	c91d09a00d	tests/basics: Add tests for weakref.ref and weakref.finalize. ... Signed-off-by: Damien George <damien@micropython.org>	2026-03-22 23:06:01 +11:00
Damien George	74e945752b	py/modweakref: Implement weakref module with ref and finalize classes. ... This adds support for the standard `weakref` module, to make weak references to Python objects and have callbacks for when an object is reclaimed by the GC. This feature was requested by PyScript, to allow control over the lifetime of external proxy objects (distinct from JS<->Python proxies). Addresses issue #646 (that's nearly a 12 year old issue!). Functionality added here: - `weakref.ref(object [, callback])` create a simple weak reference with optional callback to be called when the object is reclaimed by the GC - `weakref.finalize(object, callback, /, *args, **kwargs)` create a finalize object that holds a weak reference to an object and allows more convenient callback usage and state change The new module is enabled at the "everything" level. The implementation aims to be as efficient as possible, by adding another bit-per-block to the garbage collector, the WTB (weak table). Similar to the finalizer bit (FTB), if a GC block has its corresponding WTB bit set then a weak reference to that block is held. The details of that weak reference are stored in a global map, `mp_weakref_map`, which maps weak reference to ref/finalize objects, allowing the callbacks to be efficiently found when the object is reclaimed. With this feature enabled the overhead is: - 1/128th of the available memory is used for the new WTB table (eg a 128k heap now needs an extra 1k for the WTB). - Code size is increased. - At garbage collection time, there is a small overhead to check if the collected objects had weak references. This check is the same as the existing FTB finaliser scan, so shouldn't add much overhead. If there are weak reference objects alive (ref/finalize objects) then additional time is taken to call the callbacks and do some accounting to clean up the used weak reference. Signed-off-by: Damien George <damien@micropython.org>	2026-03-22 23:02:38 +11:00
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. ... 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. ... 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. ... 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. ... 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