Re: PCMCIA polling!?!

Hi,
in fact the system I'm working in,
uses the PCMCIA input ports as general purpose input ports.
Some signals are used to configure an Altera FPGA device, and 2 signals =
are connected to a power supply unit(PSU). The PSU must signal the PPC =
when a power fail occurs, and this is done by those 2 signals.
Can the system use edge detection and interrupt capability (on those 2 =
lines - IPA6 IPA7) or shall it perform a polling.
Thanks for your attention

Jo=E3o Mouro

Dear Jmouro,

in message [ref] you wrote:

quoted

I'm working on a embedded system with a  TQM860L, and a I have a

doubt that perhaps you might answer.

quoted

I've 2 signals related with system defects (power supply

defects) connected to PCMCIA channel II (IPBx). Is there a way to
check if those signals where triggered without polling them? Like
in interrupt lines? In that way I could

Maybe you can explain what exactly you are  trying  to  do?  Actually
there are 4 voltage detect lines: CBVS1/2 (Voltage Sense 1 and 2) and
CBBVD1/2  (Battery  Voltage  Detect 1 and 2). Interrupts can be abled
individualy for each of the 4 pins in  the  PCMCIA  Interface  Enable
Register.

But normally you don't have to care about this stuff - if you want to
use a PCMCIA Card with the system the PCMCIA  Card  Services  package
will  handle  all  such  events.  PCMCIA Card Service support for the
TQM8xxL modules / STK8xxL starter kit  is  ready  available  -  don't
re-invent the wheel.



Best regards,

Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd@denx.de
Overdrawn?  But I still have checks left!

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