On 03/26/2021 10:44 PM, Karl Schmidt wrote:
On 3/26/21 3:34 PM, Feral Engineer wrote:
Does anyone have a working solution for using Heidenhain
LS403 scales with
LinuxCNC? They're 2 phase sinusoidal feedback. Trying to
connect to a mesa
7i95.
Phil T.
The Feral Engineer
They used to build these with fancy analog circuits -
today you can get cheap uP with 14bit A/D and the rest
would 'just' be a 'little' software - Easier than
SDR(Software Defined Radio) - but I wonder if they just
use the older chips?
Looks like these guys make some chips - with datasheets in
English!
http://www.ichauschina.com/en/products/interpolator.htm
Hmm, rather nice chip! but, you have to program a serial
EPROM, and it looks like you have to do a calibration
procedure on every chip and then program a value into the
EPROM to get proper operation. That sounds like a but of
complication for production. Maybe I misunderstood.
Jon
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