On Thu, Jan 19, 2023 at 11:20 AM Linden via Emc-users <
emc-users@lists.sourceforge.net> wrote:

>
> Any idea when the Ethernet cards will be produced and sold again??
>

I just put two of them in my shopping card, only one gave the "out of stock
notice"   One had the female pins, the other male pins, I forget which was
in stock.


It SHOULD be a lot easier to make a hardware motion controller.   Right now
I'm working on the design of a pulse generator that makes 16 PWM outputs
for a project unrelated to LCNC.    But really it is the same thing,  a
bigger PC sends commands over a fast serial link (I'm using 1,000,000 bits
per second) then the command is interpreted and a pulse generator is set
up.   The pulses are hardware generated by diving down a crystal
oscillator.

So far I have $4 worth of hardware doing this and I was able to writ the
firmware in MicroPython.   The pulses are don in hardware so I don't need
the code to be fast.  I'm using an RP2040 chip.  The chip is a
ddual-core 32-bit M0 ARM processor and sells for $1.   There is just a
####-load of peripheral hardware on this chip and again, the price is $1.
 But no one is motivated because it is easier to spend $110 and buy an FPGA
based one.

Chris Albertson
Redondo Beach, California

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