Subject:
|
Re: Firmware download troubles
|
Newsgroups:
|
lugnet.robotics.rcx
|
Date:
|
Tue, 10 Dec 2002 04:24:04 GMT
|
Reply-To:
|
Dick Swan <dickswa@SPAMLESSsbcglobal.net>
|
Viewed:
|
3898 times
|
| |
|
|
The low buzz tone is an error generated by the ROM firmware for
failure condition detected as part of the "unlock firmware" opcode.
There are two causes of this. [1] ROM software calculates a checksum
value of the downloaded firmware and this mismatched against a
checksum sent from the PC or [2] the "do you knock if I byte" string
was not found in the downloaded code.
In either case, assuming the downloaded file was not corruptto begin
with, it indicates a transmission failure during one of the download
packets that was not detected by the PC.
"Matt White" <mwhite@silenus.com> wrote in message
news:H6vEs2.7tB@lugnet.com...
> Also:
>
> When it seems to get to the very end before the error appears, I • sometimes
> get a long (3-4 seconds) low tone from the RCX.
>
> Matt
|
|
Message is in Reply To:
10 Messages in This Thread:
  
  
- Entire Thread on One Page:
- Nested:
All | Brief | Compact | Dots
Linear:
All | Brief | Compact
|
|
|
|
