Hello,
I am working with Galil DMC-1880 control card under QNX. I am using the
device driver code supplied by Galil for Qnx 6.2. The driver is working well
but is using an incredible amount of time to perform a control command
(around 20 miliseconds). We have an identical card running under Windows and
it takes 2 miliseconds to perform the same command.
Umm, this is surelly not nice. Any one with experience using these cards
under QNX?
Thanks.
Carlos Beltran
Carlos Beltran wrote:
Hello,
I am working with Galil DMC-1880 control card under QNX. I am using the
device driver code supplied by Galil for Qnx 6.2. The driver is working well
but is using an incredible amount of time to perform a control command
(around 20 miliseconds). We have an identical card running under Windows and
it takes 2 miliseconds to perform the same command.
Umm, this is surelly not nice. Any one with experience using these cards
under QNX?
You’ll probably have to ask Galil about that, I can assure you that
drivers can most definately be written under QNX with latencies under
2ms 
Yeah, I know that. We have a guy here that did so with Qnx 4, doing the same
kind of control I am trying to do. But he was using a MEI control card.
Well, really, Galil is supplying the driver code in his web page but I just
wanted to know if someone was using it so I could save some time…but, I
think I will have to play a little with it to see where is wasting the
precious time…
Carlos.
“Rennie Allen” <rallen@csical.com> wrote in message
news:bn8u7b$buk$1@inn.qnx.com…
Carlos Beltran wrote:
Hello,I am working with Galil DMC-1880 control card under QNX. I am using the
device driver code supplied by Galil for Qnx 6.2. The driver is working
well
but is using an incredible amount of time to perform a control command
(around 20 miliseconds). We have an identical card running under Windows
and
it takes 2 miliseconds to perform the same command.
Umm, this is surelly not nice. Any one with experience using these cards
under QNX?You’ll probably have to ask Galil about that, I can assure you that
drivers can most definately be written under QNX with latencies under
2ms >
Carlos Beltran wrote:
Hey, hey , I found it!. Just for the posterity: There is a delay(10)
intruction in the PCIBUSCharAvailableInput function inside dmcpci.c .
I removed it and now I get the commands in 1 milisecond. A good improvement
Doh ! Sounds like some leftover debug code (of course, I’ve never done
anything like that 
Hey, hey , I found it!. Just for the posterity: There is a delay(10)
intruction in the PCIBUSCharAvailableInput function inside dmcpci.c .
I removed it and now I get the commands in 1 milisecond. A good improvement
.
Carlos
“Carlos Beltran” <cbeltran@dist.unige.it> wrote in message
news:bn923c$ees$1@inn.qnx.com…
Yeah, I know that. We have a guy here that did so with Qnx 4, doing the
same
kind of control I am trying to do. But he was using a MEI control card.
Well, really, Galil is supplying the driver code in his web page but I
just
wanted to know if someone was using it so I could save some time…but, I
think I will have to play a little with it to see where is wasting the
precious time…Carlos.
“Rennie Allen” <> rallen@csical.com> > wrote in message
news:bn8u7b$buk$> 1@inn.qnx.com> …
Carlos Beltran wrote:
Hello,I am working with Galil DMC-1880 control card under QNX. I am using
the
device driver code supplied by Galil for Qnx 6.2. The driver is
working
well
but is using an incredible amount of time to perform a control command
(around 20 miliseconds). We have an identical card running under
Windows
and
it takes 2 miliseconds to perform the same command.
Umm, this is surelly not nice. Any one with experience using these
cards
under QNX?You’ll probably have to ask Galil about that, I can assure you that
drivers can most definately be written under QNX with latencies under
2ms >
LOL
“Carlos Beltran” <cbeltran@dist.unige.it> wrote in message
news:bnbcad$3nj$1@inn.qnx.com…
Hey, hey , I found it!. Just for the posterity: There is a delay(10)
intruction in the PCIBUSCharAvailableInput function inside dmcpci.c .
I removed it and now I get the commands in 1 milisecond. A good
improvement
Carlos“Carlos Beltran” <> cbeltran@dist.unige.it> > wrote in message
news:bn923c$ees$> 1@inn.qnx.com> …Yeah, I know that. We have a guy here that did so with Qnx 4, doing the
same
kind of control I am trying to do. But he was using a MEI control card.
Well, really, Galil is supplying the driver code in his web page but I
just
wanted to know if someone was using it so I could save some time…but,
I
think I will have to play a little with it to see where is wasting the
precious time…Carlos.
“Rennie Allen” <> rallen@csical.com> > wrote in message
news:bn8u7b$buk$> 1@inn.qnx.com> …
Carlos Beltran wrote:
Hello,I am working with Galil DMC-1880 control card under QNX. I am using
the
device driver code supplied by Galil for Qnx 6.2. The driver is
working
well
but is using an incredible amount of time to perform a control
command
(around 20 miliseconds). We have an identical card running under
Windows
and
it takes 2 miliseconds to perform the same command.
Umm, this is surelly not nice. Any one with experience using these
cards
under QNX?You’ll probably have to ask Galil about that, I can assure you that
drivers can most definately be written under QNX with latencies under
2ms >
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