Quite a challenge getting this 8251A UART to work on breadboard
By Julian
Youtuber, shed dweller, solar charge controller aficionado
Good morning all…
Youtuber, shed dweller, solar charge controller aficionado
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Time to test Z80 Dart Or Z80 Sio wyhy dont.
Great Video.
I would be curious to know if the bit rate for MIDI (Musical Instrument Digital Interface) which I think is around 31.25 KHz, is on that list of acceptable rates in that scope…
That chip was a bit of a bear to set up, but the Z80-SIO was even worse! There was a part out earlier on that could be configured by various pins being tied high or low, I think it might have been the IM6402? Something like that. I have yet to get my hands on one.
Have you tried getting an 8080 or 8086 chip running on a bread board? I wonder if theres anything interesting the cpips could be used for…im sure a microcontroller is more useful.
Brilliant
Very cool indeed, I do so enjoy learning at your little school room online! I have had a basic understanding, and a love for the electronics world since I was about 12 years old and discovered that I could get popular Electronics and Popular Mechanics at the public Library. We had just moved to town from the Farm, which was, of course way to far from any public library, but did have a book mobile which came to our country school twice a month. Funny I used to really love reading the QSL page with news from the Shortwave world, yet I never tried for my Ham Ticket until about 2 years ago. Now that I have the ticket, I find that I no longer have the funds to purchase any long range equipment, so I have to settle with the four little old very much abused 2 meter rigs that I have picked up along the way since my ticket arrived online. That said, I am still considering going for the next higher ticket, I have the Technician now the General is next, but I have yet to begin to study for it, and really don't find a need for the upgrade since all I have to operate right now is fully available with The Technician ticket, and to top that off, I live in such a rural community that I am the only Ham in the town, my nearest Ham buddy is 26 miles away, a bit to far for my hand held, and even my mobile cannot reliably hit his repeater. At any rate, thanks for the great lessons on the working of those magical black bits with multi legs that make our modern lifestyle so possible.
I would love to see more on how you figured out to wire this chip. I've been doing electronics since the 1970s and find your nostalgic chip on breadboard videos very interesting and informative. Keep up the great work!
hi julian, have followed your videos since the beginning. just like big business. draw you in then cant be educated unless you pay (patrion)!,, might now unsubscribe and go where education is free. pity as i guess it was early viewers like me that made you popular in the first place. so much for loyalty……
Thanks Julian! You've helped me to "see" serial protocols in general. Good job of "showing" the UART basics, rather then telling the user about them. It's much clearer now!
hi julian, thanks for your videos. i find them very interresting, like that one. but currently, i was wondering what we can do with that usart chip. could you give me some examples of possible uses for it, please ?
Superb video Thanks Julian. I have a Siemens paper tape punch/reader that uses the 8251 as its Serial comms.
Julian traded the Owon in for the Keysight. I still have the old Rigol DSO.
Hi, your video is very interesting. I will like to know what has become of your vocoder project.
Well Julian, that's a silly question – of course we want to see a more detailed look into how you got this thing running. =P
Awesome, this is very interesting. Actually new technology is just an evolution from the old and many of the basic things that you just dealt with are carry on even if there are completely transparent on the new chips. I'm an old fart that just discovered microcontrollers and this kind of videos just fascinates me.
One more thing, I showed my wife one of your videos where you opened some packages that you didn't know you ordered and did not why did you order them. That has happened to me too, I was just showing my wife that I'm not the only crazy one in this world.
Cheers,
I don't see how this would earn down-votes.
One of the few channels I really enjoy watching and learning from. Videos are extremely informative, entertaining, and useful. Keep on making these great electronic videos