On Fri, 29 Dec 2006, Anders Wallin wrote:

> Date: Fri, 29 Dec 2006 10:53:27 +0200
> From: Anders Wallin <[EMAIL PROTECTED]>
> Reply-To: "Enhanced Machine Controller (EMC)"
>     <emc-users@lists.sourceforge.net>
> To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net>
> Subject: Re: [Emc-users] Mesa m5i20 PWM frequency ?
> 
>> 3. HM5-4EH - 4 axis 100 MHz PWM clock
>>
>> Modified so basic clock for PWM and interrupt rate is 100 MHz
>>
>> ID/REV reads AA020004 (low half is # of axis), MCLK reads 100 MHz
>>
>> I can send the source and bit files tommorow. (where?)
>
> Peter, if the files are not too large (<5Mb) you can email me the 4-axis
> 100MHz code, and I will try to test it during the weekend.

OK, I'll do that sometime today, the bit files are only ~170K bytes each and 
the gzipped source is smaller than that so less then 1 MB for everything.

>
> Did you also fix the extra encoder pinout thing which is messed up in
> the current hostmot-4 ?

AFAICR thats been fixed for a while (a year), but I dont think the fixed 
version is included with EMC2.

>
> in the long term it makes sense to have all the fpga configs in the EMC
> cvs repository, but right now we only have a driver for hostmot-4, so
> the 8-axis stuff would be highly experimental.

The register map of the 8 axis version is just a linear extention of the 4 
axis version so it should be fairly easy to support, For example:

FUNCTION   ADDRESS OFFSET

4 and 8 axis counters

COUNTER 0  00
COUNTER 1  04
COUNTER 2  08
COUNTER 3  0C

8 axis counters:

COUNTER 4  10
COUNTER 5  14
COUNTER 6  18
COUNTER 7  1C

........................




>
> AW
>
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Peter Wallace
Mesa Electronics

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