Re: [Emc-users] Mixing BLDC and brushed motors
On Sat, 6 Sep 2014, John Prentice (FS) wrote:
> Date: Sat, 6 Sep 2014 22:51:51 +0100
> From: "John Prentice (FS)"
> Reply-To: "Enhanced Machine Controller (EMC)"
>
> To: "'Enhanced Machine Controller (EMC)'"
> Subject: Re: [Emc-users] Mixing BLDC and brushed motors
>
> Greetings to anyone who "compiles" Mesa bitfiles
>
>> -Original Message-
>> From: Peter C. Wallace [mailto:p...@mesanet.com]
>
>> On Thu, 4 Sep 2014, John Prentice (FS) wrote:
>
>>> Date: Thu, 4 Sep 2014 22:44:13 +0100
>>> From: "John Prentice (FS)"
>>> Reply-To: "Enhanced Machine Controller (EMC)"
>>>
>>> To: "'Enhanced Machine Controller (EMC)'"
>>>
>>> Subject: Re: [Emc-users] Mixing BLDC and brushed motors
>>>
>>>> Not sure if theres a standard bitfile for that but its easy
>>>> copy-paste a pinout up and make one
>>>
>>> I have a spare 7i40 so I think I ought to learn how to do this - I see
>>> resources on the web that will start me going.
>>>
>>> Is ISE Webpack 9.2 still your preferred version for 5i20 and 5i22
>>> (Spartan
>>> 2) boards? What OS would you run it on - I feel concerned that it is
>>> so old that it will give trouble on my Win 8.1 (64 bit) system. I can
>>> run some Linux flavour in a V-Box to provide any environment to best suit
> the app.
>
>> I think 10 is the latest that supports Spartan but 9.2 is my preferred
> version (before they broke the editor)
>
> The short question is: What is the best location for downloading Mesa
> source?
>
> The full story is:
>
> Following the link on the 5i20 entry on the main website gets me to a source
> ZIP which seems to have two files missing from the project (irqlogic.vhd and
> dpll.vhd) and fails to synthesise - the log is in first half of attached
> PDF.
The latest source is http://www.mesanet.com/software/parallel/5i20.zip
/5i20/CONFIGS/HOSTMOT2/SOURCE/hostmot2.zip
(updated last thursday)
If there are any bugs with the project file, tell me and I will fix them
Peter Wallace
Mesa Electronics
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Re: [Emc-users] Mixing BLDC and brushed motors
Greetings to anyone who "compiles" Mesa bitfiles >-Original Message- >From: Peter C. Wallace [mailto:p...@mesanet.com] >On Thu, 4 Sep 2014, John Prentice (FS) wrote: >> Date: Thu, 4 Sep 2014 22:44:13 +0100 >> From: "John Prentice (FS)" >> Reply-To: "Enhanced Machine Controller (EMC)" >> >> To: "'Enhanced Machine Controller (EMC)'" >> >> Subject: Re: [Emc-users] Mixing BLDC and brushed motors >> >>> Not sure if theres a standard bitfile for that but its easy >>> copy-paste a pinout up and make one >> >> I have a spare 7i40 so I think I ought to learn how to do this - I see >> resources on the web that will start me going. >> >> Is ISE Webpack 9.2 still your preferred version for 5i20 and 5i22 >> (Spartan >> 2) boards? What OS would you run it on - I feel concerned that it is >> so old that it will give trouble on my Win 8.1 (64 bit) system. I can >> run some Linux flavour in a V-Box to provide any environment to best suit the app. >I think 10 is the latest that supports Spartan but 9.2 is my preferred version (before they broke the editor) The short question is: What is the best location for downloading Mesa source? The full story is: Following the link on the 5i20 entry on the main website gets me to a source ZIP which seems to have two files missing from the project (irqlogic.vhd and dpll.vhd) and fails to synthesise - the log is in first half of attached PDF. A Google for "inputpinspermodule" gets me to this post http://tinyurl.com/o3h4lra and Peter's link to http://freeby.mesanet.com/hostmot2.zip gets a source which, while still "missing files" (see screenshot at end of attachment), will create a bitfile (for an arbitrary version) once one has added InputPinsPerModule.vhd to the library. I want to be sure I am actually starting from the definitive source code before I risk any changes to make a custom combination of features. TIA John Prentice JAP-ISE-troubles.pdf Description: Adobe PDF document -- Slashdot TV. Video for Nerds. Stuff that matters. http://tv.slashdot.org/___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mixing BLDC and brushed motors
On Thu, 4 Sep 2014, John Prentice (FS) wrote:
> Date: Thu, 4 Sep 2014 22:44:13 +0100
> From: "John Prentice (FS)"
> Reply-To: "Enhanced Machine Controller (EMC)"
>
> To: "'Enhanced Machine Controller (EMC)'"
> Subject: Re: [Emc-users] Mixing BLDC and brushed motors
>
> Peter thank you
>
>> -Original Message-
>> From: Peter C. Wallace [mailto:p...@mesanet.com]
>
>> Yes you can look at the 7i39 as 6 individual 1/2 bridges and drive 3 DC
> motors from one 7i39. if a brushed motor was connected to half bridges A and
> B, I _think_ >what is needed is to drive A with the PID output and B with
> -PID output.
>
>> You can also dedicate one 1/2 bridge output as a 1/2 way up reference and
> then run up to 5 small dc motors (1/2 voltage 1/5 current) from the other 5
> 1/2 bridges
>
> Ingenious - but it leaves one short on encoder interfacing. I will try the A
> and B with ++Pid-out and --Pid-out
>>>
>>>
>>> The ideal card for the brushed motor would be a 7i40. Would it be
>>> practicable to have Hostmot2 firmware for both 7i39 and 7i40 co-exist
>>> in the 5i20? If so does a BIT file exist with this combination.
>>>
>>>
>
>
>> Not sure if theres a standard bitfile for that but its easy copy-paste a
> pinout up and make one
>
> I have a spare 7i40 so I think I ought to learn how to do this - I see
> resources on the web that will start me going.
>
> Is ISE Webpack 9.2 still your preferred version for 5i20 and 5i22 (Spartan
> 2) boards? What OS would you run it on - I feel concerned that it is so old
> that it will give trouble on my Win 8.1 (64 bit) system. I can run some
> Linux flavour in a V-Box to provide any environment to best suit the app.
I think 10 is the latest that supports Spartan but 9.2 is my preferred
version (before they broke the editor)
>
> Do you have a link to a document showing the "compile" workflow for your
> firmware? A few years ago I have written standalone FPGA and CPLD code for
> Xilinx - albeit in Verilog so hope not to prove a total nooby.
>
> TIA
>
> John Prentice
>
Yes Tom Light has a nice tutorial here:
http://tom-itx.no-ip.biz:81/~webpage/emc/xilinx/xilinx14_install_index.php
>
>
> --
> Slashdot TV.
> Video for Nerds. Stuff that matters.
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> Emc-users mailing list
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> https://lists.sourceforge.net/lists/listinfo/emc-users
>
Peter Wallace
Mesa Electronics
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Re: [Emc-users] Mixing BLDC and brushed motors
Peter thank you >-Original Message- >From: Peter C. Wallace [mailto:p...@mesanet.com] >Yes you can look at the 7i39 as 6 individual 1/2 bridges and drive 3 DC motors from one 7i39. if a brushed motor was connected to half bridges A and B, I _think_ >what is needed is to drive A with the PID output and B with -PID output. >You can also dedicate one 1/2 bridge output as a 1/2 way up reference and then run up to 5 small dc motors (1/2 voltage 1/5 current) from the other 5 1/2 bridges Ingenious - but it leaves one short on encoder interfacing. I will try the A and B with ++Pid-out and --Pid-out >> >> >> The ideal card for the brushed motor would be a 7i40. Would it be >> practicable to have Hostmot2 firmware for both 7i39 and 7i40 co-exist >> in the 5i20? If so does a BIT file exist with this combination. >> >> >Not sure if theres a standard bitfile for that but its easy copy-paste a pinout up and make one I have a spare 7i40 so I think I ought to learn how to do this - I see resources on the web that will start me going. Is ISE Webpack 9.2 still your preferred version for 5i20 and 5i22 (Spartan 2) boards? What OS would you run it on - I feel concerned that it is so old that it will give trouble on my Win 8.1 (64 bit) system. I can run some Linux flavour in a V-Box to provide any environment to best suit the app. Do you have a link to a document showing the "compile" workflow for your firmware? A few years ago I have written standalone FPGA and CPLD code for Xilinx - albeit in Verilog so hope not to prove a total nooby. TIA John Prentice -- Slashdot TV. Video for Nerds. Stuff that matters. http://tv.slashdot.org/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mixing BLDC and brushed motors
On Thu, 4 Sep 2014, John Prentice (FS) wrote:
> Date: Thu, 4 Sep 2014 13:50:23 +0100
> From: "John Prentice (FS)"
> Reply-To: "Enhanced Machine Controller (EMC)"
>
> To: "Enhanced Machine Controller (EMC)"
> Subject: [Emc-users] Mixing BLDC and brushed motors
>
> Greetings
>
>
>
> This is probably a question for PCW but others might know or have dome it.
>
>
>
> I am looking at a small machine design where two axes will be BLDC motors
> and one (or perhaps two) brushed DC.
>
>
>
> The BLDC motors suit a 7i39 very well (interfaced by a 5i20). Are there any
> problems in using just two "phases" of another 7i39 to drive the brushed
> motor? I presume that one would drive, say A, with the desired level
> (positive or negative) holding inputs B and C at zero - i.e. no bldc
> component is needed.
>
Yes you can look at the 7i39 as 6 individual 1/2 bridges and drive 3 DC motors
from one 7i39. if a brushed motor was connected to half bridges A and B, I
_think_ what is needed is to drive A with the PID output and B with -PID
output.
You can also dedicate one 1/2 bridge output as a 1/2 way up reference
and then run up to 5 small dc motors (1/2 voltage 1/5 current) from
the other 5 1/2 bridges
>
>
> The ideal card for the brushed motor would be a 7i40. Would it be
> practicable to have Hostmot2 firmware for both 7i39 and 7i40 co-exist in the
> 5i20? If so does a BIT file exist with this combination.
>
>
Not sure if theres a standard bitfile for that but its easy copy-paste a
pinout up and make one
>
> TIA
>
>
>
> John Prentice
>
>
>
>
>
> --
> Slashdot TV.
> Video for Nerds. Stuff that matters.
> http://tv.slashdot.org/
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
>
Peter Wallace
Mesa Electronics
(\__/)
(='.'=) This is Bunny. Copy and paste bunny into your
(")_(") signature to help him gain world domination.
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Re: [Emc-users] Mixing BLDC and brushed motors
On 4 September 2014 13:50, John Prentice (FS) wrote: > The BLDC motors suit a 7i39 very well (interfaced by a 5i20). Are there any > problems in using just two "phases" of another 7i39 to drive the brushed > motor? I presume that one would drive, say A, with the desired level > (positive or negative) holding inputs B and C at zero - i.e. no bldc > component is needed. Yes, that shouldn't be a problem. > The ideal card for the brushed motor would be a 7i40. Would it be > practicable to have Hostmot2 firmware for both 7i39 and 7i40 co-exist in the > 5i20? If so does a BIT file exist with this combination. I don't think that the BIT file will exist, but the only reason it couldn't be made to exist would be if the firmware won't fit on the 5i20 FPGA. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Slashdot TV. Video for Nerds. Stuff that matters. http://tv.slashdot.org/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Mixing BLDC and brushed motors
Greetings This is probably a question for PCW but others might know or have dome it. I am looking at a small machine design where two axes will be BLDC motors and one (or perhaps two) brushed DC. The BLDC motors suit a 7i39 very well (interfaced by a 5i20). Are there any problems in using just two "phases" of another 7i39 to drive the brushed motor? I presume that one would drive, say A, with the desired level (positive or negative) holding inputs B and C at zero - i.e. no bldc component is needed. The ideal card for the brushed motor would be a 7i40. Would it be practicable to have Hostmot2 firmware for both 7i39 and 7i40 co-exist in the 5i20? If so does a BIT file exist with this combination. TIA John Prentice -- Slashdot TV. Video for Nerds. Stuff that matters. http://tv.slashdot.org/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
