soft programmation ampli AD8555

[jean-pierre sarteaux]

Hi,
Are you examples soft programmation ampli AD8555 is a zero-drift,
sensor signal amplifier with digitally programmable gain and output
offset.
Thank in advance.
JP
jean-pierre.sarteaux@mines.inpl-nancy.fr

 

[Homer J Simpson]

Hi,
Are you examples soft programmation ampli AD8555 is a zero-drift,
sensor signal amplifier with digitally programmable gain and output
offset.
Thank in advance.
JP
jean-pierre.sarteaux@mines.inpl-nancy.fr

Je suis désolé. Je ne comprends pas.

 

[Matthieu Benoit]

Hi!
I translate
the author is looking for a source of any
microcontroller/µP software routine (device driver)
in C or assembly language of an application
that uses the chip p/n AD8555 [Digitally Programmable Sensor Signal
Zero-Drift Amplifier] from Analog Devices (see :
http://www.analog.com/en/prod/0,2877,AD8555,00.html

So anybody that have designed something with the AD8555
or implemented a function around the AD8555
could be of help to Jean-Pierre Sarteaux
You can reach him by email at jean-pierre.sarteaux@mines.inpl-nancy.fr
Best regards,
Matthieu

 

[LMV]

Hello
Programming the AD8555 is hardware dependant. You must send 3 x 38 bits
binary serial words with pulses:
- between 50ns and 10 us for loading 0
- bigger as 50 us for loading 1
with an interval between pulse bigger than 10 us.
These pulses can be done by hard or soft.
Analog Devices give a schematic for hard.
For soft example with a Parallax STAMP II this program:

Output 0
Deb: pulsout 0,2
Pulsout 0,30
Goto deb

Give a 4 us pulse and 214us after a 60 us pulse.

Software loop or use of timer (microcontroler or PC) in ASM, C, Basic...
can give best results

See you later...perhaps at Nancy!

L.M.V.