microcontroller

Hi,

We have added a new test engine (called Unity) to LVGL and planning to improve the coverage. See this README about how to write and run tests.

I've already created a test for the drop-down list as an exam

Is your enhancement proposal related to a problem? Please describe.
access_addr always seems to be of size 4; that should be #defined.
crc_init always seem to be of size 3; that should be #defined.

https://github.com/zephyrproject-rtos/zephyr/pull/31009/files#r736229677
https://github.com/zephyrproject-rtos/zephyr/pull/31009/files#r736229386

Describe the solution you'd like
A

• The set_mode_X() HIL functions need to support returning an error if hardware does not support that mode or if the implementation cannot put the hardware in to that mode at that time. See for an example where panic is used instead of returning an error https://github.com/tock/tock/pull/2629/files.

CircuitPython version

Adafruit CircuitPython 7.0.0-651-g5572876d2 on 2021-11-07; Pimoroni Pico LiPo (4MB) with rp2040

Code/REPL

import pwmio, countio, board
print("import OK")
counter = countio.Counter(board.GP1)
print("counter OK")
motor = pwmio.PWMOut(board.GP8)
print("motor OK")

Behavior

$ picocom /dev/ttyACM1
Adafruit CircuitPyth

In PROTECTED mode, the MPU is used to map regions of memory to supervisor- and/or user-accessible memory. Currently, that algorithm is very simple: The entire address range is made accessible in supervisor mode; a single MPU region is used to enable user-mode access in each user memory region.

Each MPU region must bit both of a power-of-two size and with an alignment in memory equal to the si