START_SEC was changed in e0905e85a7ad2961aa9192f6130565860e531ad3.
Also, update the error message to mention how to format the partition at
the REPL, and make the total message shorter to save a bit of flash.
Signed-off-by: Damien George <damien@micropython.org>
@Jerryneedell noticed that this problem affected strips short enough
to not use the DMA peripheral, thanks for the hot tip!
Instead of checking for background tasks after every byte transfer,
try up to 32 transfers before attending to background tasks.
This fixes the problem I was seeing on my 5-pixel circuit.
Closes#4135.
Add SMPS mode pin to Raspi Pico pins.c; see section "4.3. Using the ADC" of the Pico datasheet for discussion.
Driving this pin high forces the onboard regulator into a lower noise PWM mode.
This makes all the following work:
* normal microcontroller.reset()
* reset into safe mode or UF2 bootloader via microcontroller.on_next_reset()
* reset into UF2 bootloader via the "1200 baud trick"
The implementation of reset_cpu is from micropython.
In particular the firmware can now be built in a build directory that lives
outside the source tree, and the py/modarray.c file will still be found.
See issue #6837.
Signed-off-by: Damien George <damien@micropython.org>
The "word" referred to by BYTES_PER_WORD is actually the size of mp_obj_t
which is not always the same as the size of a pointer on the target
architecture. So rename this config value to better reflect what it
measures, and also prefix it with MP_.
For uses of BYTES_PER_WORD in setting the stack limit this has been
changed to sizeof(void *), because the stack usually grows with
machine-word sized values (eg an nlr_buf_t has many machine words in it).
Signed-off-by: Damien George <damien@micropython.org>
To simplify config, there's no need to specify MP_PLAT_PRINT_STRN if it's
the same as the default definition in py/mpconfig.h.
Signed-off-by: Damien George <damien@micropython.org>
Otherwise it resets the ADC peripheral each time a new ADC object is
constructed, which can reset other state that has already been set up.
See issue #6833.
Signed-off-by: Damien George <damien@micropython.org>
