> Date: Sat, 30 Nov 2013 22:35:39 -0200
> From: [email protected]
> To: [email protected]
> Subject: Re: [Emc-users] Mesa 5i25 + 7i77 basic configuration
>
> 2013/11/30 Chris Morley <[email protected]>
>
> > Can you elaborate on the difficulties with PNCconf ?
> > And what version of linuxcnc you are using?
> > Thanks
> >
>
> I'll be posting that on monday since the PC is on the workshop and I don't
> have access to it right now. The version was 2.5.0 from the live CD but
> then I updated it to 2.5.3. I'm going to use a hdd this monday because I
> was loading all in the RAM.
Ahh good - the 2.5.0 version of pncconf was very buggy.
> By the way, I've only found a little information about configuring the 5i25
> with a daughter board on the manuals. I'm mostly looking for pinouts and
> ways to configure it, I found a little confusing the way I can create
> encoders components but not pwmgens or stepgens.
>
It's a little confusing compared to the other Mesa main boards.
The 5i25's firmware is not loaded each time it is powered up like the other
boards.
So changing the core number and type of components is more involved.
It also uses the sserial protocol for some of it's components, such as the
PWGens
with the 7i77. It's actually the 7i77 board that creates the PWMgens not the
5i25.
and that is a fixed amount. The 5i25 creates the encoders, the wires are just
passed through to the 7i77 for convenience.
> Does this board support hardware stepgen? Or I need to use GPIOs with
> software stepping? The same with the PWMgen, If I wan to use a PWM signal
> not converted to analog, can I do this using the 7i77 GPIOS?
The 5i25 supports hardware steppers but you would need to reflash the 5i25
for firmware that has stepgens in it.
If you want PWM signals then you don't want the 7i77. Not sure if Peter has
PWM gen firmware for the 5i25 - I'm sure he will answer.
Chris M
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