On Fri, 29 Oct 2021, Ralph Stirling wrote:
Date: Fri, 29 Oct 2021 03:18:40 +0000
From: Ralph Stirling <ralph.stirl...@wallawalla.edu>
Reply-To: "Enhanced Machine Controller (EMC)"
<emc-users@lists.sourceforge.net>
To: "emc-users@lists.sourceforge.net" <emc-users@lists.sourceforge.net>
Subject: Re: [Emc-users] Mesa 7i90 as remote sserial
Am I once again trying for something untested?
Is it possible to use a 7i90hd as a high speed
sserial remote (2.5Mb, not the 115kb) with
configurations other than straight gpio?
Thanks,
-- Ralph
The FPGA firmware can be created easily enough but the I/O
needs to be supported by writing code, I think the current
code supports just GPIO and 3 MPG encoders. Also with full
encoders and PWM you would need to use the expanded sserial
interface on the host FPGA (224 bits rather than normal
Sserials 96 bits max) and likely drop some encoder features
________________________________________
From: Ralph Stirling
Sent: Sunday, October 24, 2021 11:11 AM
To: emc-users@lists.sourceforge.net
Subject: Mesa 7i90 as remote sserial
I'm interested in using the 7i90hd as an sserial remote,
but am having trouble pulling all the pieces together to
build a configuration. I will ultimately need four servo
channels (encoder and pwm), three MPG channels, and
a bunch of discrete i/o. I may split this up into two or
three 7i90 ssremotes for the cleanest system organization,
but one sample config should give me enough information
to make the others. In addition to making the bitstream, I
need to make a hal file, and haven't seen quite enough
documentation to do that either.
Thanks again,
-- Ralph
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Peter Wallace
Mesa Electronics
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