Disk space error

[workless]

I've been merrily coding on a PyBoard for a day or two including in assembler (crashing things quite a few times) and suddenly now getting file system errors:

- Syntax errors in script files that were too long
- When I try to move a new file to the flash drive it says "Not enough disk space to copy "pow.py". Additional 4 KB of disk space is required to copy this file. You can manage disk space by removing items..."

Now, when I look at the PYBFLASH in OS X Finder I notice the status bar says:

8 items, 235.7 MB available

(...which sounds a bit unlikely).

Here are the files currently showing on the flash:

• array_funcs.py 9 KB
  boot.py 203 bytes
  exp.py 997 bytes
  main.py 32 bytes
  pybcdc.inf 3 KB
  README.txt 528 bytes
  SKIPSD 120 bytes
  timers.py 311 bytes

Have I corrupted the flash? How would I remedy that?
What should I do in terms of trouble-shooting this?

[workless]

I found the correct documentation on how to factory reset now:

http://docs.micropython.org/en/v1.8.6/p ... ight=reset

Everything is back to factory state. I guess I need to me more careful about memory addressing...

Although Finder still says there is 235.8 MB available on the FLASH drive.

[pythoncoder]

What does

Code: Select all

uos.statvfs('/flash')[1]*uos.statvfs('/flash')[2]

tell you? I see 97280 bytes.

In general sharing the drive with a PC is itself a source of file corruption because the USB spec assumes that slave devices are passive. I disable sharing in boot.py and use rshell for communication.

[workless]

What does

Code: Select all

uos.statvfs('/flash')[1]*uos.statvfs('/flash')[2]

tell you? I see 97280 bytes.

That does return 97280.

I have also noticed that when the FLASH drive first mounts it says 69k for a few seconds before switching to 235.7 MB. Maybe I shouldn't be concerned - is it just my computer getting confused with the size of the flash drive?

[pythoncoder]

uos.statvfs is telling the truth so the fault seems to be on your computer, but I've no experience of Apple kit so I can't offer any useful suggestions.