14 Apr
2025
14 Apr
'25
7:54 p.m.
Chuck,
Could you share the schematic and source code with me, please?
Thanks,
Mike
On 4/14/2025 10:38 AM, Chuck Guzis via cctalk wrote:
On 4/14/25 07:47, Mike Katz via cctalk wrote:
I have a couple of Sanyo Denki units that I can
do the same for. I was
hoping for a serial/USB option that would handle fan fold in stead of
rolled paper tape.
I threw together my USB interface for the Sanyo Denki in an
afternoon,
using the lowest of the STM32F103 MCU "Blue pills" - the C6. Useless
for many blue pill projects, but adequate to hold USB comm support and
the simple logic to control the paper tape reader.
Why the STM32F103? I had a bunch of the things wasting space and they
feature 5V tolerant I/O and a sufficient number of GPIOs to interface to
the parallel reader output. There was plenty of flash program memory
left unused so that other features could be added if desired.
I suspect almost all CNC-oriented tape readers have a similar interface
to that of the Sanyo.
Really, if you're talking about it and not doing it, you're squandering
time that you could spend implementing it.
--Chuck