I wonder why they didn't just break up the transactions, into smaller
chunks (16-32K), so the watchdog can get "scratched" regularly?
It sounds like the speed of the USB flash stick will also factor into
how big an export can be performed, without triggering the watchdog?
Short of releasing a complete source package, or a development kit,
I wonder if Hantek/Tekway would be open to the idea of releasing
key source files, where known bugs are likely to reside? After all, I
doubt there is too much proprietary technology in their file manager
app, or the CSV export routines. They could publish the file, let the
user community submit changes, and then reintegrate on their end.
They could save a lot of time, and expense, and we could get critical
bugs fixed. Everybody wins.
BTW, thanks for getting pissed off

ECL -K