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firewire connection design

W

Whatever

Jan 1, 1970
0
Hi all,

I intend to build a firewire (ieee1394) connection beetween an ADC and my
laptop
However, i don't know anything about firewire
1 - How can i use 8 bits ADC values in a 4 pins firewire connector
2 - Is there a controler for firewire to buy or something to genereate a
clean signal

If someone had a response, it would be great

Thanks
 
J

John Larkin

Jan 1, 1970
0
Hi all,

I intend to build a firewire (ieee1394) connection beetween an ADC and my
laptop
However, i don't know anything about firewire
1 - How can i use 8 bits ADC values in a 4 pins firewire connector
2 - Is there a controler for firewire to buy or something to genereate a
clean signal

If someone had a response, it would be great

Thanks

This would be immensely difficult... for a non-Firewire expert,
probably impossible.

John
 
R

Rich Grise

Jan 1, 1970
0
Whatever said:
Hi all,

I intend to build a firewire (ieee1394) connection beetween an ADC and my
laptop
However, i don't know anything about firewire
1 - How can i use 8 bits ADC values in a 4 pins firewire connector
2 - Is there a controler for firewire to buy or something to genereate a
clean signal

If someone had a response, it would be great
A response to what? Are you asking a question? If you want to build a
firewire connection, even though you have no idea what firewire is, I'd
say, go right ahead!

Good Luck!
Rich
 
A

Andreas Hadler

Jan 1, 1970
0
Whatever said:
Hi all,

I intend to build a firewire (ieee1394) connection beetween an ADC and my
laptop
However, i don't know anything about firewire
1 - How can i use 8 bits ADC values in a 4 pins firewire connector
2 - Is there a controler for firewire to buy or something to genereate a
clean signal

You know, what's
[ ] a bit
[ ] an ADC
[ ] an ADC-value
[ ] a pin
[ ] a connector
[ ] firewire
[ ] ieee
[ ] a controler
[ ] a signal
[ ] a connection
[ ] a laptop (this is the easy one, I assume :)

and what it means to
[ ] intend
[ ] build
[ ] use a value in a connector
[ ] buy
[ ] genereate a signal (this is the tough one, IMHO :)

To be serious: If your ADC works like a hard disk, this is an easy
one: just get a firewire harddisk enclosure for the ADC. If not, and
that's what I assume, you intend to go a tough ride. It's not like
connecting bit 1 and bit 2 to pin 4. Look up how firewire works
(google is your friend!), find some firewire controler (google is your
friend!) and a controler, that matches with the ADC and the firewire
controler (google is your friend!). Or start looking into FPGA's
(google is your friend!) to do most of the job in software.

However: Good luck, and keep us informed!

Andreas
 
R

Roger Hamlett

Jan 1, 1970
0
Whatever said:
Hi all,

I intend to build a firewire (ieee1394) connection beetween an ADC and my
laptop
However, i don't know anything about firewire
1 - How can i use 8 bits ADC values in a 4 pins firewire connector
2 - Is there a controler for firewire to buy or something to genereate a
clean signal

If someone had a response, it would be great

Thanks
I think you have very little idea of what you are getting into. At the
very least, you will need a chip to handle the Firewire interface itself,
which is a high speed serial interface (look at the CXD3204/5), careful
wiring design round this to meet the specs, and a microprocessor to
interface between this, and your ADC. The number of pins on the Firewire
connector, is because it is a serial connection...
Unless the item is going to sell in thousands of units, the development
time/cost, is not worthwhile. It will also involve writing a low level
driver for the PC. Going this route, is also only worthwhile if you need
the massive data rate available from Firewire. Otherwise it is much
simpler/cheaper, to look at something like one of the FTDI USB solutions,
where an 'off the shelf' module gives you access to a parallel interface,
drivable from a USB connection.
The devleopment time to connct an ADC to a firewire interface, is probably
about six months work.

Best Wishes
 
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