spindle via step/dir servo and Mesa card
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						18 Feb 2023 16:25				#264759
		by PCW
	
	
		
			
	
			
			 		
													
	
				Replied by PCW on topic spindle via step/dir servo and Mesa card			
			
				For spindles, STEPGEN_MAXVEL  needs to be in RPS
and MAX_VELOCITY needs to be in RPM.
The comments from pncconf should be changed for spindles.
					and MAX_VELOCITY needs to be in RPM.
The comments from pncconf should be changed for spindles.
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						20 Feb 2023 11:03		 -  20 Feb 2023 11:31		#264859
		by 0x2102
	
	
		
			
	
	
			 		
													
	
				Replied by 0x2102 on topic spindle via step/dir servo and Mesa card			
			
				Thanks. It works now, after I changed MAX_VELOCITY / MAX_REVERSE_VELOCITY = 28000.
I still get the potential StepGen clipping warning, though. Is there an option to disable the warning for a spindle StepGen?
-Markus
					I still get the potential StepGen clipping warning, though. Is there an option to disable the warning for a spindle StepGen?
-Markus
		Last edit: 20 Feb 2023 11:31  by 0x2102.			
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						20 Feb 2023 15:29		 -  20 Feb 2023 15:29		#264871
		by PCW
	
	
		
			
	
	
			 		
													
	
				Replied by PCW on topic spindle via step/dir servo and Mesa card			
			
				What is your STEPGEN_MAXVEL setting?			
					
		Last edit: 20 Feb 2023 15:29  by PCW.			
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						20 Feb 2023 20:35		 -  20 Feb 2023 20:55		#264898
		by 0x2102
	
	
		
			
	
	
			 		
													
	
				Replied by 0x2102 on topic spindle via step/dir servo and Mesa card			
			
				Fixed. Thanks Peter 
I double checked things and was confused when it was set to 28000.I had some issues with the Spindle in Step/Dir, going from 2.8 -> 2.9, so I thought I would generate a test machine with Pncconf Wizard and copy the Spindle section from the example machine.
Pncconf Wizard for 2.9 has a bug in the Spindle StepGen:
setp hm2_7i76e.0.stepgen.03.maxaccel [SPINDLE_0]MAX_ACCELERATION
setp hm2_7i76e.0.stepgen.03.maxvel [SPINDLE_0]MAX_VELOCITY
Correct is:
setp hm2_7i76e.0.stepgen.03.maxaccel [SPINDLE_0]STEPGEN_MAXACCEL
setp hm2_7i76e.0.stepgen.03.maxvel [SPINDLE_0]STEPGEN_MAXVEL
-Markus
PS: I submitted this as an issue on GitHub.
					I double checked things and was confused when it was set to 28000.I had some issues with the Spindle in Step/Dir, going from 2.8 -> 2.9, so I thought I would generate a test machine with Pncconf Wizard and copy the Spindle section from the example machine.
Pncconf Wizard for 2.9 has a bug in the Spindle StepGen:
setp hm2_7i76e.0.stepgen.03.maxaccel [SPINDLE_0]MAX_ACCELERATION
setp hm2_7i76e.0.stepgen.03.maxvel [SPINDLE_0]MAX_VELOCITY
Correct is:
setp hm2_7i76e.0.stepgen.03.maxaccel [SPINDLE_0]STEPGEN_MAXACCEL
setp hm2_7i76e.0.stepgen.03.maxvel [SPINDLE_0]STEPGEN_MAXVEL
-Markus
PS: I submitted this as an issue on GitHub.
		Last edit: 20 Feb 2023 20:55  by 0x2102.			
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						20 Feb 2023 21:23				#264905
		by PCW
	
	
		
			
	
			
			 		
													
	
				Replied by PCW on topic spindle via step/dir servo and Mesa card			
			
				Thanks for submitting the bug report
(28000 RPS at 800 steps/rev is about a 22 MHz step rate
so not surprising that the driver complains)
					(28000 RPS at 800 steps/rev is about a 22 MHz step rate
so not surprising that the driver complains)
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