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I built a computer from scratch! | RC2014 Z80 computer kit assembly.
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- เผยแพร่เมื่อ 16 ส.ค. 2024
- Soldering (so much soldering!), oscilloscopes and logic analysers! My experience building an RC2014 Z80 based computer kit.
The kit consists of a backplane, Z80 CPU board, RAM, ROM, Serial I/O and a Compact Flash storage card. Currently it's running MS Basic, but later I'll get CP/M running and explore that.
It is a nice little Z80 system but I think it is a little pricey for a hobbyist, so I opted for the much cheaper and equally effective SC114 from small computer central. You just need to add the full speed serial port board to it as the onboard bit-banged port is limited to 9600 baud. That comes in at a little under one third of the price of the RC2014 pro. For an extra $20 I also added their CF board to be able to run CP/M. Total price was $77 compared to the $199 of the RC2014 pro. The SC114 has 4 slots onboard but I have extended it using the RC2014 Backplane 5 as I plan to design an add on board or two myself.
man was this ever satisfying to watch
I just bought one of these kits and I'm going to start putting it together this weekend. :3 It's the biggest electronics project I've undertaken, so I'm a little anxious, but whatever happens it's gonna be fun. :3
You're going to have a lot of fun with it 😀 The soldering is easy if you take your time and use the docs on the rc2014 website.
You need to hook it up to a proper dumb terminal like a Z19 or VT100 for that genuine 70s retro computer feel! 😂
Great video! I will be building mine soon as its being shipped. Thanks again
AWESOME! i will be building a RC2014 so this is so useful to see. Thank You!
4:20 pretty sure you put that socket in the wrong way, not that it matters electronically, but being able to line up the pin1 notches saves you lots of headache in the long term
4:55 seems to show it corrected
@@ArcaneMirage right, for like a half second, didn't even spot that :D
Even if corrected, its good practice to try to match the sockets pin1 indeed to whats on the PCB (or even better, check the schematics). Was looking in the comments for this one :P
I've built an Altair 8800 micro, an N8VEM SBC, the Z80 (and RCA 1802) membership card....
I REALLY want an RC2014, i will get one sometime in the next 6 months or so.... but i just wanted to say....
That solder looks like shite, bin it....
Haha! Great! I’ve bought the Classic ][ model which needs assembly soon.
Why is the 7MHz clock signal asymmetric? Also a good idea to learn to use the ground spring on your oscilloscope probe rather than the flying lead alligator clip. It’s probable that the overshoot spikes on the clock edges are caused from the flying lead or from the unterminated motherboard PCB.
The solder flux will also make for better and less brittle solder joints. Honestly I would re-do this solder job.
Did you use a flux pen on those joints? That might improve the flow.. Great video!
No, I was kind of hoping the flux in the solder was good enough. Some flux is on my list of things to buy though. I've since found my leaded solder and it works much better.
@@ncot_tech I can recommend a flux pen - it's basically a marker pen - easy to use and puts the flux where you need it (mainly!). I learned a lot from fixing drones.
I used resin and 0.6mm soldering tin wire and the tip of the iron isn't too big. For my soldering station I set it to 370 degrees celsius (it's probably not accurate) and you can see a blob of tin melt and jump on the leads and pads. I love your videos and I love my rc2014, both are simple and elegant.
were can I get this kit
If you go to rc2014.co.uk/ you’ll find a link to the Tindie store that sells the kits, plus a load of information about them 😀
Thank you. How much did you pay for all the kits? Cheers - John. (UK).
John Wilson I bought the RC2014 Pro kit with the joystick board, it came to about £170.
www.tindie.com/products/semachthemonkey/rc2014-pro-homebrew-z80-computer-kit/
forget CP/M - add graphics and sound and turn it into an MSX computer
Adding graphics does sound appealing, although I can’t work out a way that doesn’t rely on either unobtainable ancient chips or “cheating” by putting a device more powerful than the entire machine in it.
@@ncot_tech What about the TMS9929? The LM80C is a Z80/TMS9918 homebrew that runs on a monitor.
The RC2014 uses 32k RAM pages, but MSX expects 16k pages, and a very specific memory layout.
CP/M is really the way to go with these kind of systems. Because it is a hardware independent OS at it's core, allowing programs to be shared and code to be reused.
kit identico ma purtroppo alcun laboratorio per il mento su dove operare :(
what is the name of the 4:13 song?
Well, sir, to do any sort of proper soldering job you MUST user solder flux, which I have not seen you use (maybe I missed it while typing). Solder with flux inside is never enough (never was never will be, specially worse when the solder has more than a few months of the shop)
I've never found a solder with flux to "never be enough" in 40 years of soldering.
@@SpeccyMan Same here. Occasionally a board will want some extra flux, but not all that often. For instance, the parts that I have been hoarding since the 70s *might* require a bit of flux. Maybe... :)