 | | LinuxPPC and "No response from RCX" problem
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Hi, I recently bought an RIS kit and from my Windows box it works fine. When I try using LinuxPPC off my PPC Amiga I get the following: [root] /home/chris/nqc/nqc-2.2.r2 >bin/nqc -v -raw 10 Tx: 55 ff 00 10 ef 10 ef Rx: 55 ff 00 10 ef 10 ef Tx: 55 ff (...) (24 years ago, 3-Nov-00, to lugnet.robotics.rcx.nqc)
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| | Re: LinuxPPC and "No response from RCX" problem
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(...) Did you set the correct permissions for the serial ports (normally they're only accessible by root under Linux) Do a chmod 777 for /dev/ttyS0 (24 years ago, 3-Nov-00, to lugnet.robotics.rcx.nqc)
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| | Re: LinuxPPC and "No response from RCX" problem
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(...) Umm.. note the prompt ;)) I'd done an su root before testing to avoid permissions problems. This seems like a problem with nqc on LinuxPPC 3Q99, but I can't understand quite what it is as the tower obviously works - the green light is visible (...) (24 years ago, 3-Nov-00, to lugnet.robotics.rcx.nqc)
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| | Re: LinuxPPC and "No response from RCX" problem
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(...) Have you tried using setserial to set the correct baud rate and other options? Also note that when using "su" it sometimes doesn't take over all the settings from the user account that you used to log on. Perhaps the sudo command would work (...) (24 years ago, 4-Nov-00, to lugnet.robotics.rcx.nqc)
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| | Re: LinuxPPC and "No response from RCX" problem
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(...) Perhaps timing is a problem. Try: nqc -t 1000 -raw 10 This forces a longer (1 second) timeout per packet instead of the dynamic retry timing. Is the output any different? Echo is coming back from the tower, which means communication between (...) (24 years ago, 4-Nov-00, to lugnet.robotics.rcx.nqc)
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| | Re: LinuxPPC and "No response from RCX" problem
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(...) This helped me track down the problem - the minute I add the odd parity bit the serial driver changes the word length from 8 to 7. Doesn't look like I can do much about it from the Linux side either. :( Thanks for the help everyone, looks like (...) (24 years ago, 4-Nov-00, to lugnet.robotics.rcx.nqc)
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| | Re: LinuxPPC and "No response from RCX" problem
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(...) This may not be a driver bug - it may be a hardware limitation. AFAIK, parity is most commonly used with 7 bit words - support for a ninth bit (8 data plus parity) is poor or non-existant on some UARTs. Dave (24 years ago, 4-Nov-00, to lugnet.robotics.rcx.nqc)
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| | Re: LinuxPPC and "No response from RCX" problem
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(...) Nope, I've written a program to send messages to the RCX (like the send.c program on RCX Internals) for the Amiga side - I can boot into LinuxPPC or AmigaOS - and that works fine. If I can work out the format of the image files nqc generates (...) (24 years ago, 5-Nov-00, to lugnet.robotics.rcx.nqc)
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| | Re: LinuxPPC and "No response from RCX" problem
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(...) The format is described in rcxlib/rcxifile.h in the source distribution. (...) Assuming you have a reasonably modern C++ compiler (gcc is ideal), then the port is rarely more complicated than creating a special subclass of the PSerial class (...) (24 years ago, 5-Nov-00, to lugnet.robotics.rcx.nqc)
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| | Re: LinuxPPC and "No response from RCX" problem
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(...) Thanks, I'll look at that tonight (didn't really get chance yesterday). (...) Unfortunately the versions of gcc on both my Amiga and Thinkpad (running Mandrake 7.1) bomb when trying to compile nqc: both complain that vector.h - in g++-2 on my (...) (24 years ago, 6-Nov-00, to lugnet.robotics.rcx.nqc)
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| | Re: LinuxPPC and "No response from RCX" problem
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(...) vectorh.h is part of the C++ standard library. Apparently some systems don't have it installed by default. There was some discussion on this a while back... (URL) think the conclusion was that with ManDrake 7.1 you need to install the (...) (24 years ago, 6-Nov-00, to lugnet.robotics.rcx.nqc)
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