[ECOS] ymodem problems

[Øyvind Harboe]

I was having trouble with ymodem uploads today.

I was unable to upload via HyperTerminal from  a sluggish fileserver
(this server was having problems today with random 5-10 second pauses).
The upload work run fine for 10-100%, and then suddenly stop. If I
copied the file locally to my machine, I could upload via HyperTerminal
just fine.

Before I embark on devicing a testbench, etc. does anyone have a word of
advice on whether I'm looking in the right place?

Rounding up the usual suspects:

- at91 serial drivers. The same problem appears with and without the PDC
code enabled.
- HyperTerminal. A fine piece of software from the early 90's. 
- redboot ymodem routines. Do the ymodem redboot routines have
difficulties recovering from a period of silence/errors?

Øyvind



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