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And he obviously edits Wikipedia pages: Universaw Synchronous/Asynchronous Receiver/Transmitter - Wikipedia[^]
Quote: The USART's synchronous capabiwities were primariwy intended to support synchronous protocows wike IBM's Synchronous transmit-receive (STR), Binary Synchronous Communications (BSC), Synchronous Data Link Controw (SDLC), and de ISO-standard High-Levew Data Link Controw (HDLC) synchronous wink-wayer protocows, which were used wif synchronous voice-freqwency modems.
By the way, does anyone happen to know a USART besides the Intel 8251 or the Zilog types?
Edit: I'm glad I posted a quote from the page. It's now back to normal. Did anyone edit it?
The language is JavaScript. that of Mordor, which I will not utter here
This is Javascript. If you put big wheels and a racing stripe on a golf cart, it's still a f***ing golf cart.
"I don't know, extraterrestrial?"
"You mean like from space?"
"No, from Canada."
If software development were a circus, we would all be the clowns.
modified 10-Jan-17 8:58am.
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Microcontrollers are not an option. I want to interface PS/2 keyboard and mouse or possibly SPI EEPROMs to an old 8 bit processor. The Intel 8251 looks about right and probably could read input from a PS/2 device, but not send anything to them. SPI also would not be a problem if I could figure out wether or not it can use the same serial clock output for sending and receiving.
The language is JavaScript. that of Mordor, which I will not utter here
This is Javascript. If you put big wheels and a racing stripe on a golf cart, it's still a f***ing golf cart.
"I don't know, extraterrestrial?"
"You mean like from space?"
"No, from Canada."
If software development were a circus, we would all be the clowns.
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This might become slightly off-topic here in the lounge:
Does it care how the interface device is working internally (dedicated interface chip, or programmed FPGA or micro controller)?
SPI and I2C can be implemented in software (done that for I2C). For both, the master is generating the clock used for sending and receiving (I2C knows also a feature called "clock stretching" where the slave can block the clock to inform the master that it is not yet ready to send / receive the next bit).
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The problem is the old architecture. I need I/O chips that signal incoming data by raising an interrupt and stay off the data bus until the processor comes and reads the data register. All microcontroller solutions I have seen had some trouble with that last part, as they could not tri-state their I/O pins and put the data on the bus when the read signal comes. Otherwise I would not mind using a microcontroller for the PS/2 ports.
Another option would be to use standard UARTs and use them to attach USB keyboard and mouse with a converter inbetween. Ugly, but it would work.
As for the serial EEPROMs: Bit banging has a long tradition on this particular computer, but it's quite slow. We used to bit bang RS232 to attach terminals. The old programs ran at 'safe' 300 baud, but with a little tweaking we already reached up to 2400 baud. At a slightly higher clock frequency 4800 baud have been reached and (without having tried it yet) 9600 baud may also be possible at the maximum clock frequency. A bit banged SPI or I2C interface would perform no better than that.
The language is JavaScript. that of Mordor, which I will not utter here
This is Javascript. If you put big wheels and a racing stripe on a golf cart, it's still a f***ing golf cart.
"I don't know, extraterrestrial?"
"You mean like from space?"
"No, from Canada."
If software development were a circus, we would all be the clowns.
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I grow up with 8-bit controllers (8080, 8085, 8051, Z80, 6502) and have written programs for all of them. But that is more than 30 years ago.
Regarding the tri-state:
Just let the micro controller ports be inputs (high impedance) and switch to output mode when data should be put onto the bus.
Then you might also use the micro to interface with serial SPI or I2C EEPROMs using the corresponding hardware interface. But this might require some delay between reading and writing multiple bytes to finish serial communication and write delays.
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Jochen Arndt wrote: I grow up with 8-bit controllers (8080, 8085, 8051, Z80, 6502)
The old CDP1802 processor fits well into that collection.
Jochen Arndt wrote: But that is more than 30 years ago.
Exactly. It's my first computer and the keyboards are worn out. Real key switches are hard to get and some that fit onto the old boards are almost impossible to find. I'm going to leave the old computer as it is and just build a new one, but I will need a solution for interfacing a more modern keyboard and a mouse.
The language is JavaScript. that of Mordor, which I will not utter here
This is Javascript. If you put big wheels and a racing stripe on a golf cart, it's still a f***ing golf cart.
"I don't know, extraterrestrial?"
"You mean like from space?"
"No, from Canada."
If software development were a circus, we would all be the clowns.
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CDP1802 wrote: Edit: I'm glad I posted a quote from the page. It's now back to normal. Did anyone edit it?
The page wasn't edited since the 1st of November, 2016... You have a virus 
Skipper: We'll fix it.
Alex: Fix it? How you gonna fix this?
Skipper: Grit, spit and a whole lotta duct tape.
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A virus that only messes things up one time and then disappears?
The language is JavaScript. that of Mordor, which I will not utter here
This is Javascript. If you put big wheels and a racing stripe on a golf cart, it's still a f***ing golf cart.
"I don't know, extraterrestrial?"
"You mean like from space?"
"No, from Canada."
If software development were a circus, we would all be the clowns.
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CDP1802 wrote: A virus that only messes things up one time and then disappears?
It was a good-will-warning... 
Skipper: We'll fix it.
Alex: Fix it? How you gonna fix this?
Skipper: Grit, spit and a whole lotta duct tape.
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It might help if you notice that you haven't actually linked to Wikipedia But rather to: "http://wikien4.appspot.com/wiki/USART"
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Overlooked that. Thanks. And thanks, Google, for sending me there from the top of the list.
The language is JavaScript. that of Mordor, which I will not utter here
This is Javascript. If you put big wheels and a racing stripe on a golf cart, it's still a f***ing golf cart.
"I don't know, extraterrestrial?"
"You mean like from space?"
"No, from Canada."
If software development were a circus, we would all be the clowns.
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Be quiet!!! You spoil the fun!!!
Skipper: We'll fix it.
Alex: Fix it? How you gonna fix this?
Skipper: Grit, spit and a whole lotta duct tape.
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Sorry 
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Ive worked with Atmel, now Microchip Technology USART. Probably similar in most MPUs.
New version: WinHeist Version 2.2.2 Beta I told my psychiatrist that I was hearing voices in my head. He said you don't have a psychiatrist!
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If markdown is 'programming' then slap my thigh and call me Beryl.
I'm writing a rather long README.md for some inhouse tools we user for our software. I want a single file that everyone [well the other four people for now] can go to with all the syntax and explanations. The one thing that is now haunting me is putting in links. Why you cry Vilmos?
What the doc looks like is:
## This
### Syntax
### Example
## That
### Syntax
### Example
Because the headings have the same text they end up with the same id and I can't link to them. Anyone know what I should do. Our repos are on github if that will make a difference.
EDIT -
I can find documentation on how to use bloody emojis but put an id for a link into the doc? No bloody way!
veni bibi saltavi
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Give'em a plain text file and tell them to like it.
Tired of cottonin' to these whippersnappers.
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I'd almost agree if it wasn't for the fact that I like linkies!
veni bibi saltavi
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Use HTML?
Skipper: We'll fix it.
Alex: Fix it? How you gonna fix this?
Skipper: Grit, spit and a whole lotta duct tape.
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Can't you manually name the pieces of heading with something like
[EX01]
## Something
### Old
[EX02]
## Something
### New ?
DURA LEX, SED LEX
GCS d--- s-/++ a- C++++ U+++ P- L- E-- W++ N++ o+ K- w+++ O? M-- V? PS+ PE- Y+ PGP t++ 5? X R++ tv-- b+ DI+++ D++ G e++>+++ h--- ++>+++ y+++* Weapons extension: ma- k++ F+2 X
If you think 'goto' is evil, try writing an Assembly program without JMP. -- TNCaver
When I was six, there were no ones and zeroes - only zeroes. And not all of them worked. -- Ravi Bhavnani
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## This
### <a name="this-syntax"></a> Syntax
### <a name="this-example"></a> Example
## That
### <a name="that-syntax"></a> Syntax
### <a name="that-example"></a> Example
To link to these:
Take me to [This/Syntax](#this-syntax)
Skipper: We'll fix it.
Alex: Fix it? How you gonna fix this?
Skipper: Grit, spit and a whole lotta duct tape.
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That's what it looks like, but I think it stinketh like a ham and camembert roll left in sealed sandwich box on a south facing window sill for four day.
veni bibi saltavi
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It is markdown! What do you expect?!
Skipper: We'll fix it.
Alex: Fix it? How you gonna fix this?
Skipper: Grit, spit and a whole lotta duct tape.
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Use something unique for each "Syntax" and each "Example" ... derrr
#SupportHeForShe
Government can give you nothing but what it takes from somebody else. A government big enough to give you everything you want is big enough to take everything you've got, including your freedom.-Ezra Taft Benson
You must accept 1 of 2 basic premises: Either we are alone in the universe or we are not alone. Either way, the implications are staggering!-Wernher von Braun
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