I've written a small GTK+ application on my PI for capturing the SRecords send on my Orton 3C's bit-banged serial port. It can also send them back while waiting for an "OK" from the 3C after each SRecord. Next step is to handle "SC" which is sent back if the Sum Check byte is incorrect. #RC2014

Ah, Lecturers with kipper ties :-) My Primary School science teacher put me onto the OU's computer science programmes when I was about 10 :-)

My #RC2104 Orton 3C has produced its first Motorola SRecord :-) Next to dump a block of RAM, then to write a parser so it can receive SRecords and load the data into RAM .

Where's you r sense of adventure gone ? ;-)

The Hex Monitor on my Orton 3C is working :-) #RC2014

Hardware working and software started... #RC2014

And now another new peripheral to play with on my Orton 3C. It has hardware de-bounce so it is easy to read from. #RC2014

More code, more switches, more LEDs. The monitor code is now in the EPROM. It copies itself down to 0000h so it runs directly from a reset. I've also found a rather nifty Linux hex-editor called hexcurse. #RC2014

"in essence it was an edge case" I see what you did there :-)

I'm writing coding like it's 1980 again !

My Orton 3C has gained its first new peripherals !

I'm just rewatching TNG for the first time since it was first shown. It all seems fresh :-) And it's answered a few questions raised by watching Picard more recently.

ISTR that was going to be automated about 5 years ago ?

First 3CX peripheral half built ! #RC2014

This is my Orton 3CX (3C eXpander) board. It's a i/o port expander for the Orton 3C I bought at the #RC2014 Assembly last weekend. It has a buffered data bus and port decoding for eight input and output ports, and lots of space for devices and connectors.

Proper "Blinkenlights". I don't have a spare 90° bus connector so I can't try mine ☹️

Time to get the soldering iron out.

Looks more like his face was stuck in that grin :-)

A bit of graphics programming on my Z80 today.

After a few "teething problems" my Orton 3C is working :-)

Woop! Indeed :-)

Try doing that "on screen" :-)

A good morning's work, now time to stop for lunch :-)

And now it is just a memory, but we all have our excellent name badges to remind us and to prove "we were there" 😉

Looks like I have some soldering to do tomorrow :-)

Our special guest Wayne (of RomWBW fame) gave us an insight into the history of RomWBW and advice on how to best contribute your software to the project.

In full swing now!

More setting up going on this morning....

Econet LAN Party 2025 — The National Museum of Computing Now in its third year, The National Museum of Computing’s annual Econet LAN Party is the go-to event for Acorn enthusiasts! Join us on the 7th and 8th June to create 2025’s biggest Econet network. F...

We "do 6502" as well. Event from earlier this year : www.tnmoc.org/events/econe...

I'm looking forward to meeting all the RC2014 enthusiasts who are coming to the inaugural RC2014 Assembly at @tnmoc.bsky.social today.