On Wed, 29 Oct 2014, p...@wpnet.us wrote:

> Date: Wed, 29 Oct 2014 14:04:00 -0500
> From: p...@wpnet.us
> Reply-To: "Enhanced Machine Controller (EMC)"
>     <emc-users@lists.sourceforge.net>
> To: emc-users@lists.sourceforge.net
> Subject: Re: [Emc-users] Lathe conversion with Mesa 5i25 / 7i76
> 
> Ok, I verified the pin and changed the line in the HAL to:
>
> net mpg_count hm2_5i25.0.7i76.0.0.enc0.count => axis.0.jog-counts 
> axis.2.jog-counts axis.1.jog-counts
>
> With halcmd I can show hm2_5i25.0.7i76.0.0.enc0.count and see it go to 1 
> briefly when spinning the MPG, so it looks like the signal is getting in ok 
> but I'm still not getting any axis movement.
>

if it does not count beyond 0,1 that indicates that either A or B is not 
being seen (either a wiring or level issue)

>
>
> ------Original Mail------
> From: "Peter C. Wallace" <p...@mesanet.com>
> To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net>
> Sent: Wed, 29 Oct 2014 11:13:06 -0700 PDT
> Subject: Re: [Emc-users] Lathe conversion with Mesa 5i25 / 7i76
>
> On Wed, 29 Oct 2014, p...@wpnet.us wrote:
>
>> Date: Wed, 29 Oct 2014 12:57:50 -0500
>> From: p...@wpnet.us
>> Reply-To: "Enhanced Machine Controller (EMC)"
>>     <emc-users@lists.sourceforge.net>
>> To: emc-users@lists.sourceforge.net
>> Subject: Re: [Emc-users] Lathe conversion with Mesa 5i25 / 7i76
>>
>> hm2_5i25.0.encoder.00. is the hardware high speed encoder?
>> hm2_5i25.0.encoder.01. is not the low speed encoder?
>
> hm2_5i25.0.encoder.01 is the spindle encoder for the second 7I76 (assuming you
> are using a 7i76x2 config)
>
>  hm2_5i25.0.7i76.0.0.enc0
>
> is the first MPG encoder (it may have a different name in master)
> best thing for checking is to list all the pins with
>
> halcmd show pins > pinlist.txt
>
> when linuxcnc is running
>
>>
>> I've been looking through all the HostMot2 docs I can find including the
>> section on encoders and it's not very clear to me.
>>
>> http://www.linuxcnc.org/docs/2.6/html/drivers/hostmot2.html#_encoder
>>
>> The PNCConf seems to think hm2_5i25.0.encoder.00. is the high speed spindle
>> encoder input, so i presumed that when set to mode2 the low speed encoder
>> inputs GPIO 16..19 would occupy the next two encoder instances.
>>
>> The only reference to the low speed encoder inputs I've found is the 
>> sentence or two on pg.18 of the 7i76man.pdf you pointed out. Surely there is 
>> a more detailed explanation of this somewhere?
>>
>>
>>
>> ------Original Mail------
>> From: "Peter C. Wallace" <p...@mesanet.com>
>> To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net>
>> Sent: Wed, 29 Oct 2014 10:43:46 -0700 PDT
>> Subject: Re: [Emc-users] Lathe conversion with Mesa 5i25 / 7i76
>>
>> On Wed, 29 Oct 2014, p...@wpnet.us wrote:
>>
>>> Date: Wed, 29 Oct 2014 12:29:53 -0500
>>> From: p...@wpnet.us
>>> Reply-To: "Enhanced Machine Controller (EMC)"
>>>     <emc-users@lists.sourceforge.net>
>>> To: emc-users@lists.sourceforge.net
>>> Subject: Re: [Emc-users] Lathe conversion with Mesa 5i25 / 7i76
>>>
>>> http://wpnet.us/Harrison2.ini
>>> http://wpnet.us/Harrison2.hal
>>>
>>
>> The problem I see is the the mpg is connected to the spindle encoder on P2
>> (channel 1) not the mpg encoder on the 7i76 field I/O
>>
>>
>>
>> Peter Wallace
>> Mesa Electronics
>>
>> (\__/)
>> (='.'=) This is Bunny. Copy and paste bunny into your
>> (")_(") signature to help him gain world domination.
>>
>>
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>
> Peter Wallace
> Mesa Electronics
>
> (\__/)
> (='.'=) This is Bunny. Copy and paste bunny into your
> (")_(") signature to help him gain world domination.
>
>
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Peter Wallace
Mesa Electronics

(\__/)
(='.'=) This is Bunny. Copy and paste bunny into your
(")_(") signature to help him gain world domination.


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