[EMAIL PROTECTED] wrote:
> While it got lost in the exchange of emails, I was really most concerned 
> about 
> the stepper motors not working, and figured the problem with the pwm might be 
> related. If I set the power level to 50%, or almost any other non-zero value, 
> my 
> meter reads about 3.3 volts. I know that can't be right because at 3.3 volts 
> or 
> 98% duty cycle, the laser should be full on and it is at more like 10%.
>  
> If I use the original m5i20 driver, the laser (pwm) responds correctly, so 
> the 
> wiring sure seems to be correct.

Yep if m5i20 works and hm2_5i20 doesn't, that's pretty conclusive :-)

I dont think the pwmgen and stepgen problems are related.


> BTW, what is the frequency of the PWM? The laser accepts 5-25Khz.

Currently it's about 12 KHz, I think.

Peter, does this sound right?  It's a 5i20 so ClockHigh is 50 MHz; I set 
PWMGen Master Rate DDS to 65535; therefore PWM Clock should be 50 MHz 
too.  I've hardcoded 12-bit PWM resolution for now (bottom two bits of 
PWM Mode are 11) so PWM rate should be 50e6/2^12 = 12207 Hz.


> Here are the things posted to pastebin requested in the prior email:
>  
> Show all:
> http://pastebin.com/m6ab8b073

Thanks, this really helps.  It shows that the stepgen.enable pins are 
set to FALSE, thus disabling the stepgen outputs.  I added the .enable 
pin fairly recently.  Try adding them to your Xen and Yen nets.


> Dmesg:
> http://pastebin.com/m1478cde5

Again the hm2 log messages are all missing.  EMC ini gurus, is there a 
way to set the RTAPI debug level from an ini file?  Or should I be using 
RTAPI_MSG_ERROR for all my output?  ;-)


-- 
Sebastian Kuzminsky
       Theo: "Julian? I haven't seen you in twenty years. You look good.
              The picture the police have of you doesn't do you justice."
     Julian: "What do the police know about justice?"

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