Experimental Physics and
Industrial Control System

"D. Peter Siddons" <[email protected]> · Fri, 27 Feb 2004 16:05:25 +0100

Thanks to all who responded. I should have made it clear that I was
talking about an RTEMS app., which only has
epicsInterruptContextMessage(), which can only print a string, no
formatting. Eric Norum suggested using snprintf() to fill a buffer and
pass that to epicsInterruptContextMessage(). That seems to work fine. I
had the impression before that calling any of the xprintf() commands
from within interrupt context wasn't allowed, but apparently the string
variants are OK.

Pete.

Mark Rivers wrote:

Hi Pete,
Is there a way in EPICS to print a numeric parameter from
within an ISR, similar to epicsInterruptContextMessage(), but capable

of 
printing the value of a variable (integers, anyway)? Or must I write a

routine to do it? It would be a useful debugging aid.

This may be a dumb question, but can you call sscanf at interrupt level?
If so you can convert your number to a string and then just use
epicsInterruptContextMessage
Mark

--
D. Peter Siddons
Bldg. 725D, NSLS
Brookhaven National Laboratory
Upton, NY 11976
USA.
Email: [email protected]

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System