stenberg at cc.Helsinki.FI
Tue Nov 29 02:32:55 EST 1994
[ Article crossposted from bionet.software.gcg ]
[ Author was LARS THOMSEN ]
[ Posted on Tue, 29 Nov 94 03:10:00 +0100 ]
To : All
I am using a data-acquisition system from Cambridge Electronic Design,
to record from my current-clamp setup.
The interface is a separate 20 MHz computer with some sort of parallel
port to my PC. The interface has 32 A/D ports, 4 D/A, and 16 TTL. And a
lot of external clocks, and event triggers that I never use.
The program to control the interface is called Spike2 (capture module),
and it has "pulse program" consisting of 256 programming lines to
control the TTL's and the D/A ports.
The data acquisition is working almost perfect, but I am having problems
with the "pulse program".
What I want to do is to control my electrophysiological setup totally
from the PC's keyboard. The pulseprogram has no variables, which means
that if I want to make to inject 0.5 nA into my neurone, then I need to
write 0.5 nA, and if I want 0.6 nA then this is another line. That means
that I have run out of lines. What I want is a variable for e.g.
injecting current and the ability to increase and decrease this variable
by pressing e.g. the arrowkeys at the keyboard.
I am in fact controlling my setup with this "pulse program", but I would
like to be able to make some fine tuning.
Anyone who knows a system that is perfect for this task ?
I would be very happy if you wrote some details !
MSc Lars Thomsen
Royal Veterinary & Agricultural University
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