Maximum frequency generated by square wave node. i want to drive stepper motor with driver. driver has puls/sign input.

I use the square wave generator to supply pulses to a stepper motor driver board. For “T” I use 0.5 For Duty I use .0000015625. You want the pulses going to the stepper motor driver board to be as short as possible.

If T Is 0.5 then frequency is 1 hz ? but i want frequency maximum 100khz.

Most likely, you have a lot more knowledge with stepper motors and driver boards than I do and what I am about to share might be useless. My background is RF (radio frequency) so I always worked with frequency. Understanding stepper motors required me to develop a different method of reasoning. Us…

Thank you very much for your reply. I understand your point and it is good . T value is how much shorter can be , this is my question.

Stepper motors have a so-called PPS characteristic. PPS stands for Pulses Per Second. Depending on the model it can be few hundreds or thousands. So, to rotate a stepper at its maximum you have to provide a (hardware) pulse train with a frequency of 100-1000 Hz in magnitude. The square-wave is a lo…

I haven’t put a scope on the output…but… There seems to be a ‘do not go below’ duty cycle limit to the square wave generator. In other words, if I have T at 10 and Duty at 1 everything is okay. But, if I keep T at 10 and change Duty to .1, the duty cycle seems to stay at 1. Is this due to Arduino,…

I seem to be stuck here too. I am trying to get an A4988 + NEMA17 running, and the best I can achieve is a slow turn. From everything I have experienced in XOD so far it seems it is missing the ability to use delayMicroseconds and delayMilliseconds type speeds. Once I go below 0.01 things dont wo…

Maximum square wave pulse frequency

nkrkv December 14, 2018, 2:14pm 9

If you’re looking for a way to drive a step/dir interface motor, see Stepper step/dir drive node

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Maximum square wave pulse frequency

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