[visionegg] LPT: trigger_in only on change from 1 to 0
- From: Christoph Lehmann <lehmann@xxxxxxxxxxxx>
- To: visionegg@xxxxxxxxxxxxx
- Date: Fri, 02 May 2003 14:34:41 +0200
Dear Andrew
with the command:
input_value = raw_lpt_module.inp(0x379) & 0x20 # pin nr 12
if input_value == 0:
do something
I can detect changes at the port from 1 to 0
the command:
input_value = raw_lpt_module.inp(0x379) & 0x20 # pin nr 12
if input_value == 1:
do something
doesn't work at all
a friend of mine told me, that I should send at the beginning a 0 to the
pin I want to read in from afterward. But I saw, that with your code
(DaqLPT) I can send only to pins 1-9, right? So what shall I do?
Thanks
christoph
--
Christoph Lehmann <lehmann@xxxxxxxxxxxx>
University Hospital of Clinical Psychiatry
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