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>
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>
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>
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>
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>
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>
Includes corresponding .exp files because this feature is only available in
Python 3.14+.
Tests for `!a` conversion specifier and space after `!` are not included
because they are not supported by MicroPython.
Signed-off-by: Koudai Aono <koxudaxi@gmail.com>
Signed-off-by: Damien George <damien@micropython.org>
This commit adds support for t-strings by leveraging the existing f-string
parser in the lexer. It includes:
- t-string parsing in `py/lexer.c`
- new built-in `__template__()` function to construct t-string objects
- new built-in `Template` and `Interpolation` classes which implement all
the functionality from PEP 750
- new built-in `string` module with `templatelib` sub-module, which
contains the classes `Template` and `Interpolation`
The way the t-string parser works is that an input t-string like:
t"hello {name:5}"
is converted character-by-character by the lexer/tokenizer to:
__template__(("hello ", "",), name, "name", None, "5")
For reference, if it were an f-string it would be converted to:
"hello {:5}".format(name)
Some properties of this implementation:
- it's enabled by default at the full feature level,
MICROPY_CONFIG_ROM_LEVEL_AT_LEAST_FULL_FEATURES
- when enabled on a Cortex-M bare-metal port it costs about +3000 bytes
- there are no limits on the size or complexity of t-strings, and it allows
arbitrary levels of nesting of f-strings and t-strings (up to the memory
available to the compiler)
- the 'a' (ascii) conversion specifier is not supported (MicroPython does
not have the built-in `ascii` function)
- space after conversion specifier, eg t"{x!r :10}", is not supported
- arguments to `__template__` and `Interpolation` are not fully validated
(it's not necessary, it won't crash if the wrong arguments are passed in)
Otherwise the implementation here matches CPython.
Signed-off-by: Damien George <damien@micropython.org>
This is a linker option, so provided it's added to LDFLAGS then it can be
dropped from CFLAGS without changing the compiler behaviour.
This work was funded through GitHub Sponsors.
Signed-off-by: Angus Gratton <angus@redyak.com.au>
Because it requires a different configuration of the pins (in `setUp`).
Eg on mimxrt pins used for a `machine.Counter` cannot be read.
Signed-off-by: Damien George <damien@micropython.org>
Because it requires a different configuration of the pins (in `setUp`).
Eg on mimxrt pins used for an Encoder cannot be read.
Signed-off-by: Damien George <damien@micropython.org>
This adds MIMXRT-specific arguments and methods, as a superset of the
original Encoder/Counter documentation.
The mimxrt pinout and quickref docs are updated with relevant information.
Signed-off-by: robert-hh <robert@hammelrath.com>
These classes are based on the Quadrature Encoder blocks of the i.MXRT
MCUs. The i.MXRT 102x has two encoders, the other ones four. The i.MXRT
101x does not support this function. It is implemented as two classes,
Encoder and Counter.
The number of pins that can be uses as inputs is limited by the MCU
architecture and the board schematics. The Encoder class supports:
- Defining the module.
- Defining the input pins.
- Defining a pin for an index signal.
- Defining a pin for a reset signal.
- Defining an output pin showing the compare match signal.
- Setting the number of cycles per revolution (min/max).
- Setting the initial value for the position.
- Setting the counting direction.
- Setting a glitch filter.
- Defining callbacks for getting to a specific position, overrun and
underrun (starting the next revolution). These callbacks can be hard
interrupts to ensure short latency.
The encoder counts all phases of a cycle. The span for the position is
2**32, for the revolution is 2**16. The highest input frequency is
CPU-Clock/24. Note that the "phases" argument is emulated at the API
level (the hardware will always count all phases).
The Counter mode counts single pulses on input A of the Encoder. The
configuration supports:
- Defining the module.
- Defining the input pin.
- Defining the counting direction, either fixed or controlled by the level
of an input pin.
- Defining a pin for an index signal.
- Defining an output pin showing the compare match signal.
- Setting the counter value.
- Setting the glitch filter.
- Defining a callback which is called at a certain value.
- Settings for MIMXRT1015. The MIMXRT1015 MCU has only one encoder/counter
unit.
The counting range is 0 - 2**32-1 and a 16 bit overrun counter. The
highest input frequency is CPU-Clock/12.
The implementation of the `.irq()` method uses the common code from
`shared/runtime/mpirq.c`, including the `irq().flags()` and
`irq().trigger()` methods.
Signed-off-by: robert-hh <robert@hammelrath.com>
The rp2.asm_pio() decorator saves and temporarily replaces the globals
dictionary to allow the wrapped functions to reference PIO instructions
and register names in a natural way, restoring them before returning the
assembled program.
However, if an exception occurs while assembling the program, the globals
are not changed back, leaving them corrupted.
Wrap with try/finally to ensure they are always restored correctly.
Signed-off-by: Chris Webb <chris@arachsys.com>
As per CPython behaviour, `b"".hex()` should return an empty str object
(not an empty bytes object).
Fixes issue #18807.
Signed-off-by: Damien George <damien@micropython.org>
As of CPython 3.7 `bytes.fromhex()` skips all ASCII whitespace. And as of
CPython 3.8 `bytes.hex()` supports the optional separator argument. So
this test no longer needs a .exp file.
Signed-off-by: Damien George <damien@micropython.org>
Fixes rp2 issue where socket.getaddrinfo() could block indefinitely if an
interface goes down and still has a DNS server configured, as the LWIP
timer stops running and can't time out the DNS query.
Adds a regression test under multi_wlan that times out on rp2 without this
fix.
Fixes issue #18797.
This work was funded through GitHub Sponsors.
Signed-off-by: Angus Gratton <angus@redyak.com.au>
This commit adds `machine.PWM` support to the alif port. It uses the
existing common machine bindings and implements the standard set of
functionality: `freq()`, `duty_u16()`, `duty_ns()` and `invert`.
It uses the UTIMER peripheral and makes PWM available on all pins that have
an alt function connection to a UTIMER, which is 54 pins. It does not use
UTIMER11 which is already in use by the HE core for its systick timer. So
the following pins don't have PWM available because they need UTIMER11:
P2_6, P2_7, P7_6, P7_7, P12_6, P12_7.
Signed-off-by: Damien George <damien@micropython.org>
This allows `machine.deepsleep(N)` to wake the device after the timout N
seconds.
Could probably also do the same thing for lightsleep.
Note that this uses the LPTIMER0 resource, which would not work if
`MICROPY_HW_SYSTEM_TICK_USE_LPTIMER` was ever enabled (it's currently never
enabled, so OK for now).
Signed-off-by: Damien George <damien@micropython.org>
Occasionally, it's useful to be able to compare MicroPython's performance
figures to CPython's. This change adds the ability to run the internalbench
test runner with `--test-instance=cpython` in order to execute the same
test routines against CPython and produce a benchmark performance report in
the same format as MicroPython.
Signed-off-by: Anson Mansfield <amansfield@mantaro.com>
Previously, mpycert.der was the Intermediate certificate which is regularly
re-issued by Letsencrypt.
Also changes ssl_cert.py to load the cert data from the same file as
test_sslcontext_client.py, so the DER string doesn't have to be pasted
into the source.
This work was funded through GitHub Sponsors.
Signed-off-by: Angus Gratton <angus@redyak.com.au>
Over the time, these are manufactured with different flash types.
All changed boards still build and run with the Giga Devices chip.
The ItsyBitsy M4 board was confirmed to work with the Winbond chip.
Signed-off-by: robert-hh <robert@hammelrath.com>
