Subject:
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Re: Checksum download of text to RCX
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Newsgroups:
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lugnet.robotics.rcx.pbforth
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Date:
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Mon, 3 Apr 2000 08:53:28 GMT
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Viewed:
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2431 times
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> > 2) PBX (=PBforth Xfer) uses its own buffer, pbx.buf. I would like to use the
> > TIB instead to conserve memory. This feels allowable because both ACCEPT and
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> Using the TIB is fine, since only one channel can be active at a time. It • would
> be best if PBX-RECEIVE could filter lines with/without sums. Maybe a special
> leadin char to indicate the line needs a checksum?
Can do... Currently a line is transmitted as <text>NL<checksum>, so a
checksummed line can already be distinguished from a non-checksummed,
CR-terminated line. Adding a line header (any objections against STX?) is
more failsafe, of course.
And, when ACCEPT handles both checksummed and non-checksummed lines, this also
removes the need for an ETX, as the protocol terminates automatically after
every line. So the user interrupt problem is removed, too.
Ernst
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Message is in Reply To:
 | | RE: Checksum download of text to RCX
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| (...) This is a neat idea, Ernst. I think it would be a good addition to the pbForth system if we can allow the user to use it for text uploads and then switch to normal mode for interactive use. (...) I'll have to think about this a bit.. (...) (...) (25 years ago, 2-Apr-00, to lugnet.robotics.rcx.pbforth)
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