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 Robotics / NXT / *503 (-10)
  Re: Two motors at the same time... It is possible?
 
(...) occam ... I was wondering where I had dealt with that before. Then I realized, I had a little introduction to this when writing test programs for submarine circuit cards that had used transputers. Weren't they developed by NASA? David (18 years ago, 19-Feb-07, to lugnet.robotics.nxt)
 
  Re: Two motors at the same time... It is possible?
 
The code is working right well! But i think the stall control at the end o each task has no meaning there, since the until loop does not let the script reach it if the motor become staled. (...) Patrick (18 years ago, 19-Feb-07, to lugnet.robotics.nxt)
 
  Re: Two motors at the same time... It is possible?
 
(...) Yes, Now it is perfect. Not so obvious i think... Thanks! Patrick (18 years ago, 19-Feb-07, to lugnet.robotics.nxt)
 
  Re: Two motors at the same time... It is possible?
 
(...) Hi Patrick, Indeed the Tacholimit can only be positive. But power can be negative, that's the way to reverse direction. Philo (18 years ago, 19-Feb-07, to lugnet.robotics.nxt)
 
  Re: Two motors at the same time... It is possible?
 
(...) Hi Johan, While you're dealing with very practical questions here, I thought I'd throw a paper into the mix: (URL) was presented in the ACM conference on Programming Language Design and Implementation (PLDI) in 2005. It's a nice paper (...) (18 years ago, 19-Feb-07, to lugnet.robotics.nxt)
 
  Re: Two motors at the same time... It is possible?
 
John, (...) It worked just as I expected. The two motors now are rotating the same time. Thanks to your example, now I am giving some time to understand this setOutput call, and reading all the documentation (it is quite easier with pratical (...) (18 years ago, 19-Feb-07, to lugnet.robotics.nxt)
 
  Re: Two motors at the same time... It is possible?
 
(...) Or maybe just wrap the calls inside a mutex, so at least the behaviour is defined, if not optimum. Many of the NBC/NXC macros do exactly that, maybe all of them should? ROSCO (18 years ago, 19-Feb-07, to lugnet.robotics.nxt)
 
  Re: Two motors at the same time... It is possible?
 
(...) I understand his confusion. Not allowing separate threads to call the same subroutine is certainly unexpected. The concept of "thread" conventionally involves separate stacks for local variables (and a shared global state -- unlike separate (...) (18 years ago, 19-Feb-07, to lugnet.robotics.nxt)
 
  Re: Two motors at the same time... It is possible?
 
(...) It is possible. The NXC API doesn't currently wrap this capability in a really simple function. (...) The RotateMotor API function calls a subroutine written in NBC that does not return until the tachometer limit target has been reached. (...) (18 years ago, 19-Feb-07, to lugnet.robotics.nxt)
 
  Two motors at the same time... It is possible?
 
Hi people, I was wondering if is possible to run two motors at the same time, using diferente parameters (speed and degrees)... The code bellow works, but first the motor A runs, then the motor B runs. ---...--- task main(){ RotateMotor(OUT_A, 50, (...) (18 years ago, 18-Feb-07, to lugnet.robotics.nxt)


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