ringbuffer.size must be at least 2, and is a 16-bit quantity.
This fixes several cases including the one the fuzzer discovered,
which would lead to a fatal signal when accessing the object.
Closes: #17847
Signed-off-by: Jeff Epler <jepler@gmail.com>
This setting was missed in df05caea6c. It's
needed for this port to pass its `tests/ports/renesas-ra/modtime.py` test.
Signed-off-by: Damien George <damien@micropython.org>
This brings in:
- lora: fix SNR value in SX126x received packets
- utop: add initial implementation for ESP32
- utop: print MicroPython memory info
- utop: print IDF heap details
- urllib.urequest: add support for headers to urequest.urlopen
- aiorepl: use blocking reads for raw REPL and raw paste
- errno: add ENOTCONN constant
- logging: allow logging.exception helper to handle tracebacks
- aioble-l2cap: raise correct error if l2cap disconnects during send
- abc: add ABC base class
- aiohttp: fix partial reads by using readexactly
- aiorepl: handle stream shutdown
Signed-off-by: Damien George <damien@micropython.org>
I2CTarget costs about 8k of flash size on ESP32-S2, and about 11k on
ESP32-C6. The ESP32-C6 only has about 8k remaining, so disable I2CTarget
on that SoC until more flash can be made available.
Signed-off-by: Damien George <damien@micropython.org>
This describes the ROMFS location and size in Pico SDK's binary declaration
format, so it can be read from a .uf2 file for use with various tools.
Signed-off-by: Phil Howard <github@gadgetoid.com>
These don't test any advanced features, just the basics.
This work was funded through GitHub Sponsors.
Signed-off-by: Angus Gratton <angus@redyak.com.au>
Add documentation for `machine.Counter` and `machine.Encoder` as currently
implemented by the esp32 port, but intended to be implemented by other
ports.
Originally authored by: Ihor Nehrutsa <Ihor.Nehrutsa@gmail.com> and
Jonathan Hogg <me@jonathanhogg.com>.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
Adds a Python override of the `machine` module, which delegates to the
built-in module and adds an implementation of `Counter` and `Encoder`,
based on the `esp32.PCNT` class.
Original implementation by: Jonathan Hogg <me@jonathanhogg.com>
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
Document the new `esp32.PCNT` class for hardware pulse counting.
Originally authored by: Jonathan Hogg <me@jonathanhogg.com>
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
Add a new `esp32.PCNT` class that provides complete, low-level support to
the ESP32 PCNT pulse counting hardware units.
This can be used as a building block to implement the higher-level
`machine.Counter` and `machine.Encoder` classes.
This is enabled by default on all OG, S2, S3, C6 boards, but not on C3 (as
the PCNT peripheral is not supported).
Original implementation by: Jonathan Hogg <me@jonathanhogg.com>
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
Signed-off-by: Angus Gratton <angus@redyak.com.au>
This test uses a SoftI2C controller wired to an I2CTarget on the one board,
and tests all functionality of the I2CTarget class.
Signed-off-by: Damien George <damien@micropython.org>
Supporting readfrom_mem*(). writeto_mem() and a set of IRQs. Enabled by
default for SAMD51 devices and SAMD21 devices with external flash.
Tested with ItsyBitsy M4 and ItsyBitsy M0 with both on-board SoftI2C and a
RP2 Pico as controller.
Signed-off-by: Damien George <damien@micropython.org>
Signed-off-by: robert-hh <robert@hammelrath.com>
The functionality is similar to the RP2 implementation. The supported
address size is 7 bit. In order to achieve a sufficient response, the
target I2C IRQ handler has to run from RAM, causing much more code moved to
RAM than required.
Tested with Teensy 4.1, MIMXRT1021EVK, MIMXRT1011EVK and MIMXRT1170, using
both a On-Board SoftI2C as controller and a RP2 Pico as external
controller.
Signed-off-by: Damien George <damien@micropython.org>
Signed-off-by: robert-hh <robert@hammelrath.com>
Instead of requiring the callback to consume/provide the data. This allows
the data to be consumed/provided later on, which will stretch the I2C clock
until that occurs.
Signed-off-by: Damien George <damien@micropython.org>
And add MP_STATIC_ASSERT to statically check that the IRQ names are correct
on the MCU that it's compiled for.
Signed-off-by: Damien George <damien@micropython.org>
This commit implements a generic I2C target/peripheral/"slave" device,
called `machine.I2CTarget`. It can work in two separate modes:
- A general device with interrupts/events/callbacks for low-level I2C
operations like address match, read request and stop.
- A memory device that allows reading/writing a specific region of memory
(or "registers") on the target I2C device.
To make a memory device is very simple:
from machine import I2CTarget
mem = bytearray(8)
i2c = I2CTarget(addr=67, mem=mem)
That's all that's needed to start the I2C target. From then on it will
respond to any I2C controller on the bus, allowing reads and writes to the
mem bytearray.
It's also possible to register to receive events. For example to be
notified when the memory is read/written:
from machine import I2CTarget
def irq_handler(i2c_target):
flags = i2c_target.irq().flags()
if flags & I2CTarget.IRQ_END_READ:
print("controller read target at addr", i2c_target.memaddr)
if flags & I2CTarget.IRQ_END_WRITE:
print("controller wrote target at addr", i2c_target.memaddr)
mem = bytearray(8)
i2c = I2CTarget(addr=67, mem=mem)
i2c.irq(irq_handler)
Instead of a memory device, an arbitrary I2C device can be implemented
using all the events (see docs).
This is based on the discussion in #3935.
Signed-off-by: Damien George <damien@micropython.org>
The RP2350 PIO2 State Machines (8, 9, 10, 11) did not work. The data
structure used to pass the PIO arguments was missing an entry for PIO2,
thus causing the PIO2 instances to write wrong data to wrong locations.
Fixes issue #17509.
Signed-off-by: Matt Westveld <github@intergalacticmicro.com>
Follow up to 6bfb83e30a, if the variable
`PICO_FLASH_SIZE_BYTES` is not a numeric constant, eg "(2 * 1024 * 1024)",
then it won't pass the GREATER check. So change the if logic to just test
if it's defined.
Signed-off-by: Dryw Wade <dryw.wade@sparkfun.com>
Detection of ESP-XX devices was based on just the names of the USB driver
name, and did not account for the switch of the newer ESP-xx devices to
USB-CDC. On Windows this caused unwanted/unneeded resets as the DTR/RTS
signals are also used for automatic device reset over USB-CDC. See
https://github.com/micropython/micropython/issues/9659#issuecomment-3124704572
This commit uses the Espressif registered VID 0x303A to detect USB-CDC
ports, to enable the same DTR/RTS settings as used on the UART-USB
connection.
Also improved the robustness of the code using `getattr()`.
Signed-off-by: Jos Verlinde <Jos_Verlinde@hotmail.com>
Not all errors defined in stdlib errno are available on Windows.
Specifically, errno.ENOTBLK is not.
Fixes issue #17773.
Signed-off-by: Jos Verlinde <Jos_Verlinde@hotmail.com>
When running the viper boundary tests, assert that the offset stores don't
clobber the base register, which is saved and temporarily modified on some
architectures.
Signed-off-by: Chris Webb <chris@arachsys.com>
asm_thumb_store_reg_reg_offset() modifies the base register when storing
with a large offset which triggers the generic path. If a variable lives
in that register, this corrupts it. Fix this by saving the base register
on the stack before modifying it.
Signed-off-by: Chris Webb <chris@arachsys.com>
Add a new MICROPY_COMP_CONST_FLOAT feature, enabled by in mpy-cross and
when compiling with MICROPY_CONFIG_ROM_LEVEL_CORE_FEATURES. The new
feature leverages the code of MICROPY_COMP_CONST_FOLDING to support folding
of floating point constants.
If MICROPY_COMP_MODULE_CONST is defined as well, math module constants are
made available at compile time. For example:
_DEG_TO_GRADIANT = const(math.pi / 180)
_INVALID_VALUE = const(math.nan)
A few corner cases had to be handled:
- The float const folding code should not fold expressions resulting into
complex results, as the mpy parser for complex immediates has
limitations.
- The constant generation code must distinguish between -0.0 and 0.0, which
are different even if C consider them as ==.
This change removes previous limitations on the use of `const()`
expressions that would result in floating point number, so the test cases
of micropython/const_error have to be updated.
Additional test cases have been added to cover the new repr() code (from a
previous commit). A few other simple test cases have been added to handle
the use of floats in `const()` expressions, but the float folding code
itself is also tested when running general float test cases, as float
expressions often get resolved at compile-time (with this change).
Signed-off-by: Yoctopuce dev <dev@yoctopuce.com>
When building the embedded port on MinGW-w64, I receive the following
error:
fatal error: alloca.h: No such file or directory
MinGW-w64 (used on MSYS2) doesn't include `alloca.h`, but `alloca()` is
provided via `malloc.h` instead. And this fix is also needed for other
Windows build systems.
Signed-off-by: SiZiOUS <sizious@gmail.com>
Since commit dbbaa959c8, this test now
produces the same output on MicroPython as CPython does, namely -1e+01.
Signed-off-by: Damien George <damien@micropython.org>
The unix port is needed to build the docs, due to the cpydiff tests which
run both CPython and MicroPython (unix port). That was previously not
failing the CI because the output from MicroPython was:
/bin/sh: 1: ../ports/unix/build-standard/micropython: not found
which doesn't match the CPython output for any of the cpydiff tests, and so
it was considered a "pass" in terms of the output differing.
Also, run the docs workflow when py/ or tests/cpydiff/ changes, because the
cpydiff results may change when the core code changes.
Signed-off-by: Damien George <damien@micropython.org>
Following discussions in PR #16666, this commit updates the float
formatting code to improve the `repr` reversibility, i.e. the percentage of
valid floating point numbers that do parse back to the same number when
formatted by `repr` (in CPython it's 100%).
This new code offers a choice of 3 float conversion methods, depending on
the desired tradeoff between code size and conversion precision:
- BASIC method is the smallest code footprint
- APPROX method uses an iterative method to approximate the exact
representation, which is a bit slower but but does not have a big impact
on code size. It provides `repr` reversibility on >99.8% of the cases in
double precision, and on >98.5% in single precision (except with REPR_C,
where reversibility is 100% as the last two bits are not taken into
account).
- EXACT method uses higher-precision floats during conversion, which
provides perfect results but has a higher impact on code size. It is
faster than APPROX method, and faster than the CPython equivalent
implementation. It is however not available on all compilers when using
FLOAT_IMPL_DOUBLE.
Here is the table comparing the impact of the three conversion methods on
code footprint on PYBV10 (using single-precision floats) and reversibility
rate for both single-precision and double-precision floats. The table
includes current situation as a baseline for the comparison:
PYBV10 REPR_C FLOAT DOUBLE
current = 364688 12.9% 27.6% 37.9%
basic = 364812 85.6% 60.5% 85.7%
approx = 365080 100.0% 98.5% 99.8%
exact = 366408 100.0% 100.0% 100.0%
Signed-off-by: Yoctopuce dev <dev@yoctopuce.com>
This commit extracts from the current float parsing code two functions
which could be reused elsewhere in MicroPython.
The code used to multiply a float x by a power of 10 is also simplified by
applying the binary exponent separately from the power of 5. This avoids
the risk of overflow in the intermediate stage, before multiplying by x.
Signed-off-by: Yoctopuce dev <dev@yoctopuce.com>
