On Wed, 28 Sep 2011, Chris Morley wrote:
> Date: Wed, 28 Sep 2011 06:39:40 +0000
> From: Chris Morley <[email protected]>
> Reply-To: EMC developers <[email protected]>
> To: EMC DEV <[email protected]>
> Subject: Re: [Emc-developers] hostmot2 stepgen bug
>
>
>
>> So I guess the question is does your system exhibit the problem with more
>> normal dir change timings?
>>
>>>
>>> Cheers Chris M
>>>
>>>
> using the sample config hm2_servo for the 5i20
> no base thread
>
> DIRSETUP = 200
> DIRHOLD = 200
> STEPLEN = 40000
> STEPSPACE = 40000
>
> hostmot stepgen max vel = 0, max accel = 0
>
> quickly follow errors, worse in one direction
>
> pncconf config
> no base thread
>
> dir setup = 200 then 500 then 1000 then 5000
> dir hold = 200 then 500 then 1000 then 5000
> steplen = 1000
> stepspace = 1000
>
> hostmot stepgen max vel=0, max accel = 0
> quickly follow errors worse in one direction
>
> maxvel and max accel times 25% of EMC settings
> no follow error reported.
>
> I hope that makes sense :)
>
> Chris M
>
What motherboard are you using? maybe we can replicate it here if we have the
same motherboard
Peter Wallace
Mesa Electronics
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