NoWait Keyboard Controller
ZXNet echo conference «hardware.zx»
Hello, All
Out of sporting interest I tried to do it
Wait-free keyboard controller for Spectrum.
The price of the solution is an increase in the cost of the controller
almost doubled due to the use
EPM7064SLC44-10 (costs about 150 rubles)
The advantage, besides the absence of WAIT, is that
that the controller is mounted directly into the connector
connecting a mechanical keyboard.
I've made a working layout for now.
I will pay and order if
will show interest in this development.
Estimated cost 300 rubles.
File: Kbd_plm.zip http://zx.pk.ru/attachment.php?attachmentid=3576
Hello hero
her> CPLD as 40 keys??
That's right :)
And the MK controls them in accordance with the keystrokes of the IBM keyboard.
Hello caro
CPLD as 40 keys??
Hello caro
“Or is it necessary for both to be free of vitreous?”
What's so problematic?
Hello caro
I would order it!.. And a mouse controller to boot. But, I'm afraid that with the new product
The brakes will work, but I want it as quickly as possible. :(
Hello spensor
spe> Or is it necessary for both to be free-form?
NOT. :) Let the mouse be the way it is, but let the keyboard be unwired.
Although now I’m ready to buy a multicontroller from Caro, and then this one,
It’s witless, but, unfortunately, Caro is somehow reluctant to answer letters :(
Hello, Evgeny Muchkin
Evg> And a mouse controller to boot
A multicontroller for keyboard and mouse has long been developed and produced by Caro. Or
Is it necessary for both to be non-vital? Well then this is from the series
"It's the same only without the wings."
Hello ASDT
ASD> What is so problematic?
MAX7064 will not fit into one
Kamil, haven’t you looked in the direction of MAX3000, it seems cheaper, in theory 2 MAX3064
cheaper than one MAX7064
Hello, Evgeny Muchkin
Evg> ....Caro is somehow reluctant to answer letters :(
Check your email :)
Hello spensor
spe> Or as an option EPM3064 (MAX3000). They are also 2 times cheaper than the MAX7000.
Only food will be a problem. They seem to be 3.3 volts.
True, the inputs can work from 5 V.
Hello hero
her> Kamil, haven’t you looked in the direction of the MAX3000, it seems cheaper, in theory 2
her> MAX3064 is cheaper than one MAX7064
Ronin suggested that it’s cheaper to buy ATF1054 from ATMEL,
they cost almost half the price of EPM7064.
Hello caro
car> Ronin suggested - it’s cheaper to buy ATF1054 from ATMEL,
car> they cost almost half the price of EPM7064.
Or as an option EPM3064 (MAX3000). They are also 2 times cheaper than the MAX7000.
Hello caro
car> Only food will be a problem. They seem to be 3.3 volts.
car> True, the inputs can work from the 5th century.
Not important. Firstly, a 3.3V CRANK costs a penny, unlike FPGA
MAX7000S series. Secondly, the MAX3000A is a CMOS chip, and although the power supply is
recommended at 3.3V, this is most likely to reduce power consumption,
in fact, it works great at 5V and even higher.
Hello, CHRV
Can anyone tell me which offices in Moscow sell Atmel matrices?
(does components.argussoft.ru sell at retail?)
Hello spensor
spe> Or as an option EPM3064 (MAX3000). They are also 2 times cheaper than the MAX7000.
ATF1504 does not require power modification and the firmware just needs to be converted
pof2jed program (i.e. they are a direct analogue of 7064).
Hello fan
fan> Can anyone tell which offices in Moscow sell Atmelov ones
fan> matrices ?
fan> (does components.argussoft.ru sell at retail?)
Or even better online at retail =)
Hello, acidrain
fulcrum maybe
Hello, acidrain
aci> Or even better online at retail =)
For example, type:
http://www.chipfind.ru/search/?s=epm7064s
and you will receive complete information.
Hello fan
fan> Can anyone tell which offices in Moscow sell Atmelov ones
fan> matrices ?
fan> (does components.argussoft.ru sell at retail?)
www.efind.ru and then we get on the phone