Maybe I should just build me a #RC2014 and write CP/M software... 
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#rc2014
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Replied to RC2014
@rc2014 @electron_greg back in school we had a special, modular custom-bus based #intel8085 system to teach us about computers and programming.
It also had a switch panel and I fondly remember looking up opcodes in a photocopied table so that I knew which value to "toggle" next on the switches before writing it to a memory address. Hands on computing, the real way.
It was called #MFA (microcomputer für ausbildung - microcomputer for training) and it also ran CP/M and featured a #Siemens #SPS module (god, I hate SPS).
It was this system I learned #intel8085 #assembler on.
P.S.: I guess this baby and the fond memory I have of it made me fall in love with #rc2014 decades later ...
I swear these things are breeding!
#rc2014
#FT245
#electronics
Yeah! I've finally got around to building the #rc2014 dual uart board.
I love the new fangled quantum-entanglement methods for serial communication! (Or I may have misplaced where I've stored the IC pack.)
This weekend, I have a PCB to build up and test on my #rc2014.
Oddly, 2 sets of boards have gone through production and shipping together, until the last mile delivery!
Replied to RC2014
@rc2014 This makes me want to develop something for the #RC2014 to attend the #RC2014Assembly 
Replied in thread
A surprise extra instalment of RC2014 adventures tonight, as MajenkoTech's viewers have voted for me to carry on and build the mystery add-on module I bought from @rc2014 in person at last year's #emfcamp.
Tune in from 2130 BST at https://twitch.tv/baljemmett to find out which very important peripheral I'll be adding to the machine tonight!
(I was going to give everybody a short break and do something else this week, but the people have spoken and who am I to disagree?)
Twitchbaljemmett - TwitchVintage computing enthusiast and amateur soldering-iron wielder, who should probably know better at his age.
I've just bought by ticket for #rc2014assembly . It's on Saturday 20th September at Bletchley Park. It sounds like a really interesting event for #RC2014 users.
https://www.eventbrite.co.uk/e/rc2014-assembly-tickets-1444643490569
EventbriteRC2014 AssemblyThis event provides a unique opportunity to explore the practical implementations and diverse applications of the RC2014
Now that the news is out, I guess I will be using the #RC2014Assembly hashtag on here.
And if you haven't seen the news, this is a meetup of the #RC2014 community at Bletchley Park on September 20th. This looks like it is going to be an awesome day with people showing off their hardware, demonstrating their software, and talking about what interests them with the RC2014 (including similar platforms like the RCBus or Z50 bus machines, or kits that run RomWBW etc).
Tickets don't go on sale until tomorrow, and I will post a working link (sorry about the oopsie in the newsletter) when they're available.
I hope that as many of you as possible can make it along, especially if you don't normally attend general retro computer meetups.
Soak testing new SAA1099P cards for RC2014 via a SAM-RC Bus Interface on my SAM Coupe computer.
With four cards, plus the SAA built into the SAM, that gives a total of 30 SAA sound channels... Hmmm...! 
https://2014.samcoupe.com
for all the hardware I've designed for use with the RC2014 ecosystem and compatibles (inc. ZX Spectrum via a ZX-RC Bus Interface!)
- SID Soundchip Interface
- Graphic OLED
- SAA1099P Soundchip Interface
- ZX True Tone (for YM/AY soundcard)
- Bus Interfaces to use RC2014 peripherals with several home computers.
Replied in thread
Tonight is going to be part 8 of my #RC2014 Pro Pride kit build, assembling the final module: the digital I/O board, which has eight LEDs in a variety of colours that I'm definitely going to need chat's help to identify. So hopefully at least some of you will join me at https://twitch.tv/baljemmett from 2130 BST for that!
Depending on how long it takes to build, we might also give the ESP8266 Wifi module another whirl, now that I've corrected my silly resistor mistake from last time...
Twitchbaljemmett - TwitchVintage computing enthusiast and amateur soldering-iron wielder, who should probably know better at his age.
Continued thread
Previous #breadboard abominations interfacing a FT245 to a #rc2014 have been done largely from memory and having several webpages open.
I figured it was time to actually capture a #schematic and I also updated the logic to include bit 7 of the 6850 control register (interrupt enable) and an open collector interrupt request.
Rebuilt it with the new logic using the schematic and it all still works, along with better interrupt capability.
Still a mess though!
Any recommendations for #rc2014 #CPM software?
#askingforafriend
The little SAM Coupe PCBs I made to go on the top of my new SAA1099P Soundchip Interface (for RC2014 and compatibles) looked so good I've got extra made to make them available as pin badges!
Grab yours here:
https://samcoupe.com/quickshop.htm
Replied in thread
Part 7 (!) of my RC2014 Pro Pride kit build tonight, and I think we'll be tackling the WiFi module. If we have time we might even try to reflash its ESP8266 with different firmware, to make it pretend to be a modem for connecting out to BBSes. But first we need to get it built and working with the default firmware!
That'll be from 2130 BST (50 minutes from now) at https://twitch.tv/baljemmett/ if you care to join me.
Twitchbaljemmett - TwitchVintage computing enthusiast and amateur soldering-iron wielder, who should probably know better at his age.
Ok, I’ve got the FTDI FT245 working in place of the Dual SIO card on the #rc2014 Pro, for SCM and BASIC. It allows CP/M to start (it wouldn’t earlier today), but… the BIOS provided with the Pro kit is expecting a SIO, and not a 6850. Doh! In theory, it should work with the 6850 version of CP/M, but I don’t have that just yet.
I do like that I could connect without needing a separate USB-Serial adaptor, and might still get some boards made. And maybe try and get the 6850 version of CP/M
Quick update to my sub site with the peripherals I've designed and released for use with RC2014 systems and compatibles with the RC style expansion connector.
- Added the option to include 'SAM Revival 11' with the new SAA1099P Soundchip Interface. If you're curious about sound on the SAM Coupe computer, which uses the SAA1099P, this back issue of SAM Revival magazine focuses on sound on SAM and includes a 19 track audio CD.
- Added more community links.
