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>

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>

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>

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

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

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

TS_CAL1 and TS_CAL2 of STM32L4 are at VDDA=3.0V, so the reference
correction factor should be updated before reading tempsensor.

For STM32L4 series, the internal sensors are connected to:
- ADC1_IN0: Internal voltage reference
- ADC1_IN17: Temperature sensor
- ADC1_IN18: VBAT battery voltage monitoring
but ADC_CHANNEL_VREFINT, ADC_CHANNEL_VBAT, ADC_CHANNEL_TEMPSENSOR are not
defined as 0, 17, 18.

This commit converts channel 0, 17, 18 to ADC_CHANNEL_x in
adc_get_internal_channel().

This change adds STM32L1 support to the STM32 port.

Instead of being an explicit field, it's now a slot like all the other
methods.

This is a marginal code size improvement because most types have a make_new
(100/138 on PYBV11), however it improves consistency in how types are
declared, removing the special case for make_new.
Signed-off-by: NJim Mussared <jim.mussared@gmail.com>

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

In preparation for upcoming rework of mp_obj_type_t layout.
Signed-off-by: NJim Mussared <jim.mussared@gmail.com>

pyb.ADC(channel) checks whether specified channel is valid or have ADC
capability but pyb.ADCAll().read_channel() does not.

This change adds checking whether specified channel is valid and throw
ValueError if channel is invalid.  This is same as pyb.ADC().

Fixes:
- Should read `definitions` rather than `defintions`.
- Should read `resolution` rather than `resoultion`.
- Should read `inefficient` rather than `inefficent`.
- Should read `closed` rather than `closded`.
Signed-off-by: NTim Gates <tim.gates@iress.com>

This replaces occurences of

    foo_t *foo = m_new_obj(foo_t);
    foo->base.type = &foo_type;

with

    foo_t *foo = mp_obj_malloc(foo_t, &foo_type);

Excludes any places where base is a sub-field or when new0/memset is used.
Signed-off-by: NJim Mussared <jim.mussared@gmail.com>

This commit adds support for the STM32G0 series of MCUs.
Signed-off-by: NAsensio Lorenzo Sempere <asensio.aerospace@gmail.com>

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

Use HAL macro to map decimal numbers to channel numbers.  This is needed
since updating L4 HAL v1.17.0 in a0f5b314.

Fixes issue #8233.

This commit adds support for the STM32G4 series of MCUs, and a board
definition for NUCLEO_G474RE.  This board has the REPL on LPUART1 which is
connected to the on-board ST-link USB-UART.

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

This commit is based upon prior work of @dpgeorge and @koendv.

MCU support for the STM32H7A3 and B3 families MCUs:
- STM32H7A3xx
- STM32H7A3xxQ (SMPS)
- STM32H7B3xx
- STM32H7B3xxQ (SMPS)

Support has been added for the STM32H7B3I_DK board.
Signed-off-by: NJan Staal <info@janstaal.com>

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: NDamien 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).

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

These are found when building with -Wfloat-conversion.

Using new options enabled in the uncrustify configuration.

This is run with uncrustify 0.70.1, and black 19.10b0.

This commit adds mp_raise_msg_varg(type, fmt, ...) as a helper for
nlr_raise(mp_obj_new_exception_msg_varg(type, fmt, ...)).  It makes the
C-level API for raising exceptions more consistent, and reduces code size
on most ports:

   bare-arm:   +28 +0.042%
minimal x86:  +100 +0.067%
   unix x64:   -56 -0.011%
unix nanbox:  -300 -0.068%
      stm32:  -204 -0.054% PYBV10
     cc3200:    +0 +0.000%
    esp8266:   -64 -0.010% GENERIC
      esp32:  -104 -0.007% GENERIC
        nrf:  -136 -0.094% pca10040
       samd:    +0 +0.000% ADAFRUIT_ITSYBITSY_M4_EXPRESS

Set to 810 cycles following HAL examples.

The call to is_adcx_channel is redundant because the channel is already
checked just before calling adc_init_single in adc_make_new.

Use NB_TO_CHANNEL to map decimal numbers to channel numbers.  And use the
correct rank to initialize channels (ADC_REGULAR_RANK_1).