RogerN wrote:
> ----- Original Message ----- 
> From: "John Kasunich" <[EMAIL PROTECTED]>
> To: "Enhanced Machine Controller (EMC)" 
> <[email protected]>
> Sent: Friday, June 22, 2007 12:36 AM
> Subject: Re: [Emc-users] m5i20 Homing with index
> 
> 
>> Well, I've fixed the (not-yet-released) version 2.2 driver.  Turns out
>> it was the mask - EMC and HAL don't use it, but it was enabled anyway.
>> Changed the driver to turn off index masking, and index now works.
>>
>> The 2.1.x version of the driver is a mess - it doesn't use the
>> "canonical encoder interface" that all other HAL encoder drivers use,
>> so HAL pin names are non-standard.  The code that drives them is also
>> very different.  I'm tempted to port the 2.2 driver over into the 2.1
>> branch, instead of attempting to fix the one that is there.  But that
>> decision will have to wait until tomorrow, its after 1:30am.
> 
> Thanks for your work on this, I'm guessing this should also fix my 
> problem with threading on the lathe?  Is there a work around, is there a 
> way to thread on my lathe using EMC2.1.6 with the current driver?  I'm 
> so new and this is so akward I'm not sure if I'm doing something wrong 
> or if the latch-index just won't work for threading.  I guess I just 
> need to know if I should wait for the V2.2 driver that you fixed or if I 
> can get hal to function like the index-enable?

I'm not sure.  The problem I fixed (board ingoring the index pulse) 
would normally result in EMC waiting forever to start the threading
pass, which is not what you described.  But I think the 2.1 driver did
funny things with index-enable, so maybe EMC thought it got an index
pulse even though the actual counts didn't reset.

I'll look at the 2.1.6 driver either tonight or over the weekend, and 
see what I can do.  Please be patient ;-)

Regards,

John Kasunich


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