Help with simple M1XX file
08 Jan 2014 22:17 #42500
by andypugh
I suspect that part of the problem is that you think you are programming in HAL, but actually you are programming in "bash"
I have no idea how to do that either, but perhaps Google does?
linux.die.net/Bash-Beginners-Guide/chap_07.html
something like
ought to exit if the parport pin is set. But that doesn't handle the timeout. For that you would need to wrap the if-then-fi in a loop in a counter.
I have no idea if this will work as-written as I don't have a bash shell here and I have almost zero shell scripting experience.
I have also rather glossed-over sending a message to the user.
Replied by andypugh on topic Help with simple M1XX file
I am looking for help writing a simple custom M1xx file. I am struggling with the Hal programming language, in my advancing age and my old IF THEN ELSE programming logic I don't seem to be getting this Hal format.
I suspect that part of the problem is that you think you are programming in HAL, but actually you are programming in "bash"
Step 4 Verify that the "punch up" limit switch is met
Step 5 If the switch is not met after 5 seconds activate the feed hold and print an error message to the screen,
If the switch is met then exit the M program and return to the main Gcode program until the next Punch M1xx code is called.
I have no idea how to do that either, but perhaps Google does?
linux.die.net/Bash-Beginners-Guide/chap_07.html
something like
...
halcmd getp parport.0.pin-01-in
if [ $? eq 1 ] ;
then exit 0
fiought to exit if the parport pin is set. But that doesn't handle the timeout. For that you would need to wrap the if-then-fi in a loop in a counter.
COUNTER = 0
while [ $COUNTER lt 25 ] ; do
halcmd getp parport.0.pin-01-in
if [ $? eq 1 ] ; then
exit 0
fi
sleep 0.2
(( COUNTER ++ ))
done
halcmd setp motion.feedhold 1
I have no idea if this will work as-written as I don't have a bash shell here and I have almost zero shell scripting experience.
I have also rather glossed-over sending a message to the user.
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