micropython

I would like to implement a file-transfer over serial protocol and to that end I need to calculate the CRC of typically 1kB byte-packets. Unfortunately, the latter is pretty slow in Python and CPython's binascii.crc32() and binascii.crc_hqx() are missing

About this question, here is a unified reply.

We need to see this place where one is the definition and load the configuration.

https://github.com/sipeed/MaixPy/blob/master/components/micropython/port/builtin_py/board.py

If you don't provide the configuration, you won't get the concrete variable.

If it is SIPEED published hardware, the appropriate configuration is provided here.

htt

Extract fixtures for device tests to common. We have already done this for cardano, now we need to extend it to all other tests. Let's do this gradually, it's a lot of work.

Slack discussion

The following MicroPython modules are not referenced in the docs:

• array
  • Upstream docs
• builtins
  • Upstream docs
• ucollections
  • Upstream docs
• gc
  • [Upstream docs](https://do