11 Nov
2025
11 Nov
'25
9:06 p.m.
On 10/26/25 01:40, Tony Nicholson wrote:
I was so shocked when I read about his development effort many years
ago. I'm baffled by it, but so glad he did it. :)
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
Separately, what is this, if I may ask? I did
several commercial
designs with eZ80 microcontrollers (specifically eZ80F91) many years
ago. I liked them a lot, but Zilog's toolchain wasn't very good, and
the whole ecosystem was displaced (for my work anyway) by ARM (now ARM
and RISC-V) with GCC. Much better overall but lacks that sexy "Z" on
the package.. ;)
It is indeed a eZ80F91 evaluation board, set to run CP/M 2.2 with shared
drives
over Ethernet. I can connect to it from a VT220 or from other systems using
Kermit/XMODEM via LAT (or the Telnet gateway on the Lantronix).
This is very cool. I still have my old eZ80F91 eval board; is this
setup documented somewhere such that I may replicate it?
RSX280
Available RSX280 V6.15 via GECKO
I have an RSX280 system as well, but I've not yet powered it up due
to lack of time.
This runs on a Z280RC cpu / quad serial port RC2014 system. Most of the
time it's running CP/M Plus nowadays - but when I get a round tuit I'll get
back into porting things to Hector Peraza'a RSX280.