micropython / micropython/micropython
read() & readline() on rp2 port don't work/work as expected
Nobody has claimed this yet.
- Dominant language
- C
- Stars
- 22.1k
- Forks
- 9k
- Avg merge
- 6d 4h
- Merged PRs (30d)
- 16
Description
the UART on the rp2 port mostly works. read([num of bytes]) works mostly as expected although it seems to drop bytes occasionally and "hangs" if you try to read more bytes than currently available however read() with no number of bytes to read set and readline() just sit there indefinitely. I suspect it's to do with the fact that timeout isn't implemented
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by locating the rp2 UART implementation behind read() and readline(), then investigate how timeout handling relates to the reported indefinite blocking and occasional dropped bytes. Reproduce the behavior on the rp2 port and compare both methods with the stated expectations; the issue is done when the cases no longer hang and byte reads behave consistently.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- c, python
- Domain
- embedded-iot
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100