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To reduce code duplication.
Signed-off-by: Damien George <damien@micropython.org>

To reduce the number of calls to mp_hal_stdout_tx_strn and improve the
overall throughput of printing data.  This implementation is taken from
ports/stm32/mphalport.c.
Signed-off-by: Damien George <damien@micropython.org>

Uses the same logic applied in 5b57ae98
to determine when to add .exe.

See related: #3310, #3361, #3370, #4143, #5727.

For some boards, even -fm dio is too fast and they require -fm dout.  This
commit links to the esptool wiki about available flash modes and changes
dio to dout.

This test snuck through without proper formatting and is causing CI for
other unrelated changes to fail.
Signed-off-by: David Lechner <david@pybricks.com>

And also add a test to capture the CPython difference.

This adds the --tags argument to the git describe command that is used
to define the MICROPY_GIT_TAG macro. This makes it match non-annotated
tags. This is useful for MicroPython derivatives that don't use
annotated tags.
Signed-off-by: David Lechner <david@pybricks.com>

Adds support for hardware SPI to the zephyr port.  Consistent with other
ports, such as rp2 and stm32, we only implement the SPI protocol functions
(init and transfer).  Explicit sck/mosi/miso selection is not supported
and new SPI instances are initialized with default values.

This commit adds I2S protocol support for the esp32 and stm32 ports, via
a new machine.I2S class.  It builds on the stm32 work of blmorris, #1361.

Features include:
- a consistent I2S API across the esp32 and stm32 ports
- I2S configurations supported:
  - master transmit and master receive
  - 16-bit and 32-bit sample sizes
  - mono and stereo formats
  - sampling frequency
  - 3 modes of operation:
    - blocking
    - non-blocking with callback
    - uasyncio
  - internal ring buffer size can be tuned
- documentation for Pyboards and esp32-based boards
- tested on the following development boards:
  - Pyboard D SF2W
  - Pyboard V1.1
  - ESP32 with SPIRAM
  - ESP32
Signed-off-by: Mike Teachman <mike.teachman@gmail.com>

These warnings appear with GCC 11.  Keep them as warnings but not as
compiler errors so they can be dealt with properly in the future.
Signed-off-by: Damien George <damien@micropython.org>

Signed-off-by: Damien George <damien@micropython.org>

Signed-off-by: Damien George <damien@micropython.org>

The ADC_FIRST_GPIO_CHANNEL and ADC_LAST_GPIO_CHANNEL macros are no longer
needed.  Instead the pin_adcX table (X = 1, 2, 3) is now generated to be
the exact size needed for a given MCU, and MP_ARRAY_SIZE(pin_adcX) is used
to determine the upper bound.

This commit also allows CPU pins to be excluded from ADC configuration if
they are hidden by prefixing their name with a "-".
Signed-off-by: Damien George <damien@micropython.org>

* Modify common functions in adc.c to accept ADC handle.
* Most external channels are connected to ADC12 which is used by default.
* For ADCAll (internal channels) ADC3 is used instead.
* Issue #4435 is possibly related (at least partially fixed).

Fixes issue #7481.

Signed-off-by: Damien George <damien@micropython.org>

Add new API for specifying the idle level and TX carrier output level, and
new write_pulses modes of operation.  Also fix wait_done documentation
which was inverted and wrong about timing.

This change allows specification of the idle level and TX carrier output
level (through changed initialisation API), and more flexible specification
of pulses for write_pulses.

This is a breaking change for the esp32.RMT constructor API.  Previous code
of this form:

    esp32.RMT(..., carrier_duty_percent=D, carrier_freq=F)

will now raise an exception and should be changed to:

    esp32.RMT(..., tx_carrier=(F, D, 1))

This extends pretty-printing of OSError's to handle two arguments when the
exception name is known.
Signed-off-by: David Lechner <david@pybricks.com>

Leaves the default as-is, but allows using --no-soft-reset to disable the
soft reset when connecting.

The firmware for Teensy 4.0, Teensy 4.1 and MIMXRT1020_EVK are created.
Users of other MIMXRT10xx_EVK boards should be able to build the firmware
themselves, they might need specific DEBUG settings.

The Makefile had to be changed in order to build the .bin file as well.

This adds a call to mp_deinit() in the main function of the STM32 port.
This enables the use of MICROPY_PORT_DEINIT_FUNC on that port, as well as
cleaning up the GIL if threading is enabled.

Fixes issue #5619.

Follow up to a96afae9

Previous behaviour was: if boot.py had an exception then main.py would
still run, which is arguably unexpected behaviour.

This commit changes the behaviour so main.py is not run if boot.py has an
error.
Signed-off-by: Damien George <damien@micropython.org>

Currently when using uasyncio.start_server() the socket configuration is
done inside a uasyncio.create_task() background function.  If the address
and port are already in use however this throws an OSError which cannot be
cleanly caught behind the create_task().

This commit moves the getaddrinfo and socket binding to the start_server()
function, and only creates the task if that succeeds.  This means that any
OSError from the initial socket configuration is propagated directly up the
call stack, compatible with CPython behaviour.

See #7444.
Signed-off-by: Damien George <damien@micropython.org>

Mostly for compatibility reasons:
- idle()
- disable_irq()
- enable_irq()
- time_pulse_us()

See related #7379.

This avoids the irritation of the PJRC HalfKay loader on Teensy 4.0.  Block
0 and 1 are properly erased and the additional formatting in the make
script is not required anymore.

This class supports SPI bus controller mode, with blocking transfers.

SPI device numbers start at 0, to comply with the pinout of the Teensy
boards.  With the configured clock frequency the fastest baud rate is
33MHz.  For messages longer 16 bytes DMA is used.  The class uses the
existing framework with extmod/machine_spi.c.

Extended driver options:

- drive=n with n being between 1 and 6 or PIN.POWER_1 to PIN.POWER_6.
  Since the pins used by the SPI are fixed, no Pin settings can be made.
  Thus the drive option is added allowing to control ringing and crosstalk
  on the connection.

- gap_ns=nnnnn is the time between sent data items in a frame given in ns.
  Default is 2 clock cycles.

Coverage calculated by Codecov has the same reliability/deterministic
issues as Coveralls did, so the problem is likely to do with the output of
lcov/gcov, rather than the analysis and display of the data.

Switch from lcov to gcov for data generation to try and simplify this
process of computing coverage.
Signed-off-by: Damien George <damien@micropython.org>

As discussed in #7455, Coveralls doesn't work properly anymore, it has
many spurious errors with reduced coverage.
Signed-off-by: Damien George <damien@micropython.org>

When looping, now disable the TX interrupt after calling rmt_write_items()
function to handle change in IDF behaviour (since v4.1).  Also check length
of pulses to ensure it fits hardware limit.

Fixes issue #7403.

This helps the test pass on systems with an inaccurate sleep time.
Signed-off-by: Damien George <damien@micropython.org>

Signed-off-by: Damien George <damien@micropython.org>