Altera ByteBlaster II schematic

L

Leon Heller

Guest
I just came across this schematic for the ByteBlaster II:

http://www.mcu.cz/atm/index.php?direction=0&order=&directory=EDA

Someone has probably worked out the circuit by tracing the connections on a
unit as Altera hasn't published it, AFAIK.

Leon
--
Leon Heller, G1HSM
http://www.geocities.com/leon_heller
 
"Leon Heller" <leon_heller@hotmail.com> wrote in message
news:408c2ecd$0$19422$cc9e4d1f@news-text.dial.pipex.com...
I just came across this schematic for the ByteBlaster II:

http://www.mcu.cz/atm/index.php?direction=0&order=&directory=EDA

Someone has probably worked out the circuit by tracing the connections on
a
unit as Altera hasn't published it, AFAIK.
Click to expand...
You need to register to be able to download the above file.

Leon
--
Leon Heller, G1HSM
http://www.geocities.com/leon_heller
 
Leon Heller wrote:

I just came across this schematic for the ByteBlaster II:

http://www.mcu.cz/atm/index.php?direction=0&order=&directory=EDA

Someone has probably worked out the circuit by tracing the connections on a
unit as Altera hasn't published it, AFAIK.
Click to expand...
And does it work ?

Rene
--
Ing.Buero R.Tschaggelar - http://www.ibrtses.com
& commercial newsgroups - http://www.talkto.net
 
"Rene Tschaggelar" <none@none.net> wrote in message
news:408cd362$0$703$5402220f@news.sunrise.ch...
Leon Heller wrote:

I just came across this schematic for the ByteBlaster II:

http://www.mcu.cz/atm/index.php?direction=0&order=&directory=EDA

Someone has probably worked out the circuit by tracing the connections
on a
unit as Altera hasn't published it, AFAIK.

And does it work ?
Click to expand...
I mean to try it, when I get my Cyclone board finished.

Leon
--
Leon Heller, G1HSM
http://www.geocities.com/leon_heller
 
"Leon Heller" <leon_heller@hotmail.com> wrote in message
news:408cffe8$0$19420$cc9e4d1f@news-text.dial.pipex.com...
"Rene Tschaggelar" <none@none.net> wrote in message
news:408cd362$0$703$5402220f@news.sunrise.ch...
Leon Heller wrote:

I just came across this schematic for the ByteBlaster II:

http://www.mcu.cz/atm/index.php?direction=0&order=&directory=EDA

Someone has probably worked out the circuit by tracing the connections
on a
unit as Altera hasn't published it, AFAIK.

And does it work ?
Click to expand...

It looks about right if SOT-23's were used for all the diodes and
transistors.


Nial
 
"Leon Heller" <leon_heller@hotmail.com> wrote in message
news:408cffe8$0$19420$cc9e4d1f@news-text.dial.pipex.com...
"Rene Tschaggelar" <none@none.net> wrote in message
news:408cd362$0$703$5402220f@news.sunrise.ch...
Leon Heller wrote:

I just came across this schematic for the ByteBlaster II:

http://www.mcu.cz/atm/index.php?direction=0&order=&directory=EDA

Someone has probably worked out the circuit by tracing the connections
on a
unit as Altera hasn't published it, AFAIK.

And does it work ?

I mean to try it, when I get my Cyclone board finished.
Click to expand...
A problem with this is that the BF550 and BF570 transistors used are
unavailable - 20 weeks delivery according to Arrow. 8-(

I'll see if I can find equivalent devices.

Leon
--
Leon Heller, G1HSM
http://www.geocities.com/leon_heller
 
Leon

I have tried the website, I even registered, but somehow, I cannot
click on the "byteblaster.pdf" link to download. How do you get to
download the file??

Thanks
Ted


I just came across this schematic for the ByteBlaster II:

http://www.mcu.cz/atm/index.php?direction=0&order=&directory=EDA

Someone has probably worked out the circuit by tracing the connections on a
unit as Altera hasn't published it, AFAIK.

Leon
Click to expand...
 
Click on the disk icon in the second column


"ted" <edaudio2000@yahoo.co.uk> wrote in message
news:c54bf83f.0404280333.3f03ac24@posting.google.com...
Leon

I have tried the website, I even registered, but somehow, I cannot
click on the "byteblaster.pdf" link to download. How do you get to
download the file??

Thanks
Ted


I just came across this schematic for the ByteBlaster II:

http://www.mcu.cz/atm/index.php?direction=0&order=&directory=EDA

Someone has probably worked out the circuit by tracing the connections
on a
unit as Altera hasn't published it, AFAIK.

Leon
Click to expand...
 
Leon Heller wrote:

"Leon Heller" <leon_heller@hotmail.com> wrote in message
news:408cffe8$0$19420$cc9e4d1f@news-text.dial.pipex.com...

"Rene Tschaggelar" <none@none.net> wrote in message
news:408cd362$0$703$5402220f@news.sunrise.ch...

Leon Heller wrote:


I just came across this schematic for the ByteBlaster II:

http://www.mcu.cz/atm/index.php?direction=0&order=&directory=EDA

Someone has probably worked out the circuit by tracing the connections

on a

unit as Altera hasn't published it, AFAIK.

And does it work ?

I mean to try it, when I get my Cyclone board finished.


A problem with this is that the BF550 and BF570 transistors used are
unavailable - 20 weeks delivery according to Arrow. 8-(

I'll see if I can find equivalent devices.
Click to expand...
Since this is not a precision analog device, I guess any bipolar does
the job. Basically two inverters to boost the voltage plus an emitter
follower to lower the output impedance.

Rene
--
Ing.Buero R.Tschaggelar - http://www.ibrtses.com
& commercial newsgroups - http://www.talkto.net
 
Leon Heller wrote:

I just came across this schematic for the ByteBlaster II:

http://www.mcu.cz/atm/index.php?direction=0&order=&directory=EDA

Someone has probably worked out the circuit by tracing the connections on a
unit as Altera hasn't published it, AFAIK.
Click to expand...
Did anyone succeed in getting it to run ?
It appears to be too simple. Even simpler than the MV.
Not partwise, but from the functionality.

I didn't even try as I get one from Altera.
But, just in case one of my customers
is going to need one ...

Rene
--
Ing.Buero R.Tschaggelar - http://www.ibrtses.com
& commercial newsgroups - http://www.talkto.net
 
Basically they are the same. if you check the pinouts all that's been done
is to make the levels far more variable. You could probably do the same job
with 74VCX series from Fairchild except you would loose 5V operation. (but
the comparator is a nice touch). I have seen a 3V3/5V version of this
design but using logic gates already.

Simon

"Rene Tschaggelar" <none@none.net> wrote in message
news:40936ce6$0$715$5402220f@news.sunrise.ch...
Leon Heller wrote:

I just came across this schematic for the ByteBlaster II:

http://www.mcu.cz/atm/index.php?direction=0&order=&directory=EDA

Someone has probably worked out the circuit by tracing the connections
on a
unit as Altera hasn't published it, AFAIK.

Did anyone succeed in getting it to run ?
It appears to be too simple. Even simpler than the MV.
Not partwise, but from the functionality.

I didn't even try as I get one from Altera.
But, just in case one of my customers
is going to need one ...

Rene
--
Ing.Buero R.Tschaggelar - http://www.ibrtses.com
& commercial newsgroups - http://www.talkto.net
Click to expand...
 
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