Post by thread:code for stepper motors

Hi I am rather new to PIC«s but is trying to learn the 16c84. What I need is some code in order to microstep a stepper motor . Does anyone know of this?? regards Frank

Hi Frank, The idea for "microstepping" is to interpolate the current between two phases. If you put only current for one phase in each state you do a "big step". By giving, for instance a current i/3 for one coil and 2i/3 for the other you multiply by 3 the number of steps. Remember you must have a motor suitable for microstepping and use current-controlled drivers for doing this (not on-off switches). Its linearity is essential. I hope this short comment could help you. Sorry for my bad english. best regards, Rildo Pragana (spam_OUTrpraganaTakeThisOuTtruenet.com.br) >from Recife, Brasil On Thu, 17 Jul 1997, Frank Vinnerlid wrote: > I am rather new to PIC«s but is trying to learn the 16c84. What I need > is some > code in order to microstep a stepper motor . Does anyone know of this??

At 22:27 17/07/1997 -0700, you wrote: >I am rather new to PIC«s but is trying to learn the 16c84. What I need >is some >code in order to microstep a stepper motor . Does anyone know of this?? > >regards > >Frank You have a clear tutorial about stepping motor at the following address: http://www.cs.uiowa.edu/~jones/step/index.html Regards, Philippe. +--------------------------------------------------------+ | Virtual Micro Design | | | | UMPS : The Universal microcontroller Simulator | | | | E-Mail: .....p.techerKILLspam@spam@idls.izarbel.tm.fr | | URL: http://idls.izarbel.tm.fr/entp/techer | | or http://sistudio.com/umps | +--------------------------------------------------------+