…odule

Ringbuf: fix PacketBuffer; clean up ringbuf implementation and use

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STM32: Add displayio to F7/H7

…hon-master

Translations update from Weblate

Currently translated at 65.1% (477 of 732 strings)

Translation: CircuitPython/master
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Translations update from Weblate

This adds initial support for an AES module named aesio.  This
implementation supports only a subset of AES modes, namely
ECB, CBC, and CTR modes.

Example usage:

```
>>> import aesio
>>>
>>> key = b'Sixteen byte key'
>>> cipher = aesio.AES(key, aesio.MODE_ECB)
>>> output = bytearray(16)
>>> cipher.encrypt_into(b'Circuit Python!!', output)
>>> output
bytearray(b'E\x14\x85\x18\x9a\x9c\r\x95>\xa7kV\xa2`\x8b\n')
>>>
```

This key is 16-bytes, so it uses AES128.  If your key is 24- or 32-
bytes long, it will switch to AES192 or AES256 respectively.

This has been tested with many of the official NIST test vectors,
such as those used in `pycryptodome` at
https://github.com/Legrandin/pycryptodome/tree/39626a5b01ce5c1cf51d022be166ad0aea722177/lib/Crypto/SelfTest/Cipher/test_vectors/AES

CTR has not been tested as NIST does not provide test vectors for it.

Signed-off-by: Sean Cross <sean@xobs.io>

This is the result of running `make translate` after creating aesio.

Signed-off-by: Sean Cross <sean@xobs.io>

mimxrt10xx: add one-directional SPI

stm: enable RGBMatrix

aes: add initial AES module

Documentation Fix: Typo in RTC.

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Translations update from Weblate

This section immediately follows the .bss section, and is designed to
contain uninitialized variables that should persist across reboots.

The section is placed directly after .bss, under the theory that the
size of Circuit Python's .bss + .data is bigger than the bootloader's
.bss + .data, so there is less likely to be a conflict.

Signed-off-by: Sean Cross <sean@xobs.io>

Previously, it was placed following .bss.  However, now that there is a
new section after .bss, the heap must be moved forward.

Signed-off-by: Sean Cross <sean@xobs.io>

Circuit Python supports saving a single word of data across reboots.
Previously, this data was placed immediately following the .bss.

However, this appeared to not work, as Circuit Python zeroes out the
heap when it starts up, and the heap begins immediately after the .bss.

Switch to using the new .uninitialized section in order to store this
word across resets.

Signed-off-by: Sean Cross <sean@xobs.io>

Store the RTC value in the .uninitialized section, but make sure to
flank it with some known values.  That way we can determine if the RTC
value has been initialized, or if it's random uninitialized garbage.

As part of this, add a `common_hal_rtc_init()` routine to determine if
the value is correct, or reset it to 0 if it is not valid.

Signed-off-by: Sean Cross <sean@xobs.io>

Call the new function to set the RTC, or reset it if the offset is not
valid.

Signed-off-by: Sean Cross <sean@xobs.io>

Fixes #2514

This change takes polygon from 126k pixels per second fill to 240k pps fill
  on a reference 5 point star 50x66px polygon, updating both location and shape
  at 10hz.  Tested on an m4 express feather.

As a curiosity, the flat-out fill rate of a shape whose get_pixel is `return 0;`
  fills just shy of 375k pixels per second.

vectorio: speed up polygon

Add bytearray.decode() for CPython compatibility

NRF: Persist RTC offset across reboots

add weblate status badge in readme

mimxrt10xx: Fix cpu.temperature crash

mimxrt1010: Increase max SPI speed

Add support for a debug console, such as ST-Link VCP.