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 Robotics / RCX / legOS / 3028 (-5)
  Re: BrickOS Threading...
 
The motor handler is only called once ever 2ms in the latest version of BrickOS (as opposed to every 1ms in earlier versions). This is a fairly recent change and it could be causing a "granularity" type problem with certain speed settings in your (...) (22 years ago, 12-Dec-02, to lugnet.robotics.rcx.legos)
 
  BrickOS Threading...
 
I'm having a problem, and I hope someone can help me. I've been running winLegOS, and I've switched to the latest version of BrickOS. I created a way to control the motors, which will reliably speed them up, and slow them down by using different (...) (22 years ago, 12-Dec-02, to lugnet.robotics.rcx.legos)
 
  sys_time (long post)
 
As I was poking around in the BrickOS kernel, it occurred to me that using the sys_time variable isn't entirely safe. Since sys_time is 32-bits and the processor can only read 16-bits at a time into a register, there is a period of time between the (...) (22 years ago, 12-Dec-02, to lugnet.robotics.rcx.legos)
 
  Re: Cygwin under Virtual PC on OS X
 
(...) David, I was not sure how you tried to build the cross compiler but I know that Apple provides several gnu tools that work under Darwin. Darwin from my understanding is the underlying code for the Mac OS X (See FAQ at (URL) So one might be (...) (22 years ago, 12-Dec-02, to lugnet.robotics.rcx.legos)
 
  Re: Cygwin under Virtual PC on OS X
 
Oops, Sorry if I accidentally gave anyone false hope, I ment to say: I have not found any cross compiler packages for LegOS or the Hitachi H8 that are buildable under OS X (but would love to find one). Anyone know of any? (...) (22 years ago, 12-Dec-02, to lugnet.robotics.rcx.legos)


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