For STM32G4, there is a errata on ADC that may get wrong ADC result.
According to the errata sheet, this can be avoid by performing two
consecutive ADC conversions and keep second result.
Signed-off-by: NYuuki NAGAO <wf.yn386@gmail.com>

Signed-off-by: NYuuki NAGAO <wf.yn386@gmail.com>

For STM32G4 series, the internal sensors are connected to:
- ADC1_IN16: Temperature sensor
- ADC1_IN17: Battery voltage monitoring
- ADC1_IN18: Internal voltage reference
but ADC_CHANNEL_TEMPSENSOR_ADC1, ADC_CHANNEL_VBAT,
ADC_CHANNEL_VREFINT are not defined as 16, 17, 18.

This commit converts channel 16, 17, 18 to ADC_CHANNEL_x in
adc_get_internal_channel().
Signed-off-by: NYuuki NAGAO <wf.yn386@gmail.com>

For STM32G4,
 * TS_CAL1 raw data acquired at a temperature of 30°C
 * TS_CAL2 raw data acquired at a temperature of 130°C
Also, these values are at VDDA=3.0V.
Signed-off-by: NYuuki NAGAO <wf.yn386@gmail.com>

For STM32G4, ADC clock frequency should be equal or less than 60MHz.
To satisfy this specification, ADC clock prescaler should be equal or
greater than 4 (For example, NUCLEO_G474RE runs 170MHz).

In addition, to obtain accurate internal channel value,
the ADC clock prescaler is set to 16 because vbat needs at least 12us
(16/170*247.5=23.3us).
Signed-off-by: NYuuki NAGAO <wf.yn386@gmail.com>

For STMG4 MCUs, the peripheral registers for DAC have to be accessed by
words (32bits) because DAC is connected to AHB directly.

(This requirement is also there for other MCU series.  However, if DAC is
connected to APB like F4/L1/L4 MCUs, AHB byte or half-word transfer is
changed into a 32-bit APB transfer.  This means that PSIZE does not have to
be DMA_PDATAALIGN_WORD on these MCUs, and in fact must be BYTE/HALFWORD to
function correctly.)

Fixes issue #9563.
Signed-off-by: NYuuki NAGAO <wf.yn386@gmail.com>

To match the other functions in the machine module, in particular so that
MICROPY_PY_MACHINE can be disabled without getting a compiler warning about
unused code.
Signed-off-by: NDamien George <damien@micropython.org>

Signed-off-by: NTobias Thyrrestrup <tt@LEGO.com>

Also, it is needed only when USB is enabled.
Signed-off-by: NYuuki NAGAO <wf.yn386@gmail.com>

Signed-off-by: NYuuki NAGAO <wf.yn386@gmail.com>

Mostly updates comments, but also renames the UASYNCIO enum value to
ASYNCIO.

This work was funded through GitHub Sponsors.
Signed-off-by: NJim Mussared <jim.mussared@gmail.com>

The asyncio module now has much better CPython compatibility and
deserves to be just called "asyncio".

This will avoid people having to write `from uasyncio import asyncio`.

Renames all files, and updates port manifests to use the new path. Also
renames the built-in _uasyncio to _asyncio.

This work was funded through GitHub Sponsors.
Signed-off-by: NJim Mussared <jim.mussared@gmail.com>

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

It currently operates in 1-line (SPI) mode only.
Signed-off-by: NDamien George <damien@micropython.org>

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

This commit adds initial support for STM32H5xx MCUs.  The following
features have been confirmed to be working on an STM32H573:
- UART over REPL and USB CDC
- USB CDC and MSC
- internal flash filesystem
- machine.Pin
- machine.SPI transfers with DMA
- machine.ADC
- machine.RTC
- pyb.LED
- pyb.Switch
- pyb.rng
- mboot
Signed-off-by: NDamien George <damien@micropython.org>

All MCUs can have 6-bit resolution; see adc_cr_to_bits_table.
Signed-off-by: NDamien George <damien@micropython.org>

The G0 USB peripheral behaves more like MICROPY_HW_USB_IS_MULTI_OTG=0 than
that config =1.  This fixes the configuration of the PMA FIFO buffers.
Signed-off-by: NDamien George <damien@micropython.org>

For debugging purposes, to see output from other peripherals.

Also reset the pyb_stdio_uart state at the end of soft reset, in case it
points to a heap-allocated object.
Signed-off-by: NDamien George <damien@micropython.org>

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

Needed for compiling gchelper_thumb2 on cortex-m33.
Signed-off-by: NDamien George <damien@micropython.org>

Following how mkrules.cmake works.  This makes it easy for a port to enable
frozen code, by defining FROZEN_MANIFEST in its Makefile.
Signed-off-by: NDamien George <damien@micropython.org>

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

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

This is a MicroPython-specific module that existed to support the old
version of uasyncio.  It's undocumented and not enabled on all ports and
takes up code size unnecessarily.
Signed-off-by: NJim Mussared <jim.mussared@gmail.com>

Applies to drivers/examples/extmod/port-modules/tools.

This work was funded through GitHub Sponsors.
Signed-off-by: NJim Mussared <jim.mussared@gmail.com>

Signed-off-by: NJim Mussared <jim.mussared@gmail.com>

Updates any includes, and references from Makefiles/CMake.

This essentially reverts what was done long ago in commit
136b5cbd

This work was funded through GitHub Sponsors.
Signed-off-by: NJim Mussared <jim.mussared@gmail.com>

This work was funded through GitHub Sponsors.

Also updates #includes.
Signed-off-by: NJim Mussared <jim.mussared@gmail.com>

This work was funded through GitHub Sponsors.
Signed-off-by: NJim Mussared <jim.mussared@gmail.com>

This work was funded through GitHub Sponsors.
Signed-off-by: NJim Mussared <jim.mussared@gmail.com>

This work was funded through GitHub Sponsors.
Signed-off-by: NJim Mussared <jim.mussared@gmail.com>

This renames the builtin-modules, such that help('modules') and printing
the module object will show "module" rather than "umodule".

This work was funded through GitHub Sponsors.
Signed-off-by: NJim Mussared <jim.mussared@gmail.com>

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

This work was funded through GitHub Sponsors.
Signed-off-by: NJim Mussared <jim.mussared@gmail.com>

Updates all `help()` output to use the phrase:
`For online docs please visit http://docs.micropython.org/`

Some ports previously used different wording, some pointed to the wrong
link.  Also make all ports use `help.c` for consistency.

This work was funded through GitHub Sponsors.
Signed-off-by: NJim Mussared <jim.mussared@gmail.com>

Now that this code was moved to extmod/moduos.c.
Signed-off-by: Nrobert-hh <robert@hammelrath.com>

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

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

This work was funded through GitHub Sponsors.
Signed-off-by: NJim Mussared <jim.mussared@gmail.com>