Subject:
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Re: Firmware download troubles
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Newsgroups:
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lugnet.robotics.rcx
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Date:
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Tue, 10 Dec 2002 13:38:19 GMT
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Viewed:
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3978 times
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In lugnet.robotics.rcx, Dick Swan writes:
> Message transmission in quad speed is not reliable when there is a
> large block of consecutive zeros in the message data. I have found
> that it is not robust when more than 25+ consecutive zeros are
> transmitted.
...
> One solution is to disable the quad speed downloader.
Dick and others,
Thanks - this helped. What I did to solve this was run the NCQ command-line
download at "normal" speed. This worked the first time. Interestingly, I am
not sure that the Bricx (v3.3) download was running quad speed though. I
have no option for download speed choices (that I can see).
Thanks again!
Matt
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Message has 1 Reply:
 | | Re: Firmware download troubles
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| (...) Look at Edit/Preferences. On the General tab is a checkbox labeled "Use fast mode when downloading firmware" You can uncheck that option to use normal speed firmware downloads via BricxCC. John Hansen (URL) (22 years ago, 10-Dec-02, to lugnet.robotics.rcx)
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Message is in Reply To:
| | Re: Firmware download troubles
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| A likely explanation for your downloading problem is the following. Standard Lego software uses 2400 baud data rate and a protocol that sends "double" bytes. The "double" byte is that each data byte is followed by its complement. Alternative (...) (22 years ago, 10-Dec-02, to lugnet.robotics.rcx)
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