I have some python code which reads the port of a motor and when the port switches from closed (9) to open (8) the while loop should exit. However i'm finding that the while loop seems to be stuck even though the above are seen to change.
Below is the code and output.
self.send(param, iostatus,'move', 'e', '-1000') # move mirror above home switch
self.send(param, iostatus,'move', 'a', '-1000') # move mirror west of home switch
sleep(4)
print int(self.send(param, iostatus,'portread', 'e'))
print int(self.send(param, iostatus,'portread', 'a'))
while int(self.send(param, iostatus,'portread', 'e')) \
or int(self.send(param, iostatus,'portread', 'a')) == 9:
if int(self.send(param, iostatus,'portread', 'e')) == 8:
self.send(param, iostatus,'stop', 'e') #stop motor moving
if int(self.send(param, iostatus,'portread', 'a')) == 8:
self.send(param, iostatus,'stop', 'a') #stop motor moving
altt = int(self.send(param, iostatus,'portread', 'e'))
azt= int(self.send(param, iostatus,'portread', 'a'))
print 'altt', altt, 'of type', type(altt), altt==9
print 'azt', azt, 'of type', type(azt), azt==9
sleep(3)
Terminal output: (note i had to space out the output so it didn't bunch up in this post)
At 140815-13:03:03 instruction to send is aA
At 140815-13:03:03 instruction to send is eA
At 140815-13:03:03 instruction to send is eF1000 1
At 140815-13:03:04 instruction to send is aF1000 1
At 140815-13:03:06 instruction to send is e^
waiting for home
..........Text cut for clarity
At 140815-13:03:21 instruction to send is e^
At 140815-13:03:21 instruction to send is a^
At 140815-13:03:21 instruction to send is eM-1000
At 140815-13:03:21 instruction to send is aM-1000
At 140815-13:03:25 instruction to send is eA 9 At 140815-13:03:25 instruction to send is aA 9 At 140815-13:03:25 instruction to send is eA
At 140815-13:03:25 instruction to send is eA
At 140815-13:03:25 instruction to send is aA
At 140815-13:03:25 instruction to send is eA At 140815-13:03:25 instruction to send is aA
altt 9 of type True
azt 9 of type True
................Text cut for clarity
At 140815-13:03:57 instruction to send is eA
At 140815-13:03:57 instruction to send is eA
At 140815-13:03:57 instruction to send is aA
At 140815-13:03:58 instruction to send is eA
At 140815-13:03:58 instruction to send is aA
altt 9 of type True
azt 9 of type True
At 140815-13:04:01 instruction to send is eA
At 140815-13:04:01 instruction to send is eA
At 140815-13:04:01 instruction to send is e@
At 140815-13:04:01 instruction to send is aA
At 140815-13:04:01 instruction to send is a@
At 140815-13:04:01 instruction to send is eA
At 140815-13:04:01 instruction to send is aA
altt 8 of type False
azt 8 of type False
At 140815-13:04:04 instruction to send is eA
At 140815-13:04:04 instruction to send is eA
At 140815-13:04:04 instruction to send is e@
At 140815-13:04:04 instruction to send is aA
At 140815-13:04:04 instruction to send is a@
At 140815-13:04:04 instruction to send is eA
At 140815-13:04:04 instruction to send is aA
altt 8 of type False
azt 8 of type False
At 140815-13:04:07 instruction to send is eA
At 140815-13:04:07 instruction to send is eA
At 140815-13:04:07 instruction to send is e@
At 140815-13:04:07 instruction to send is aA
At 140815-13:04:07 instruction to send is a@
At 140815-13:04:07 instruction to send is eA
At 140815-13:04:07 instruction to send is aA
altt 8 of type False
azt 8 of type False
.........and the loop will continue like this even though both those portchecks == 8 and are false.
Basically what's happening is i'm moving some motors and waiting for their port (home switch) to read 8 (open). When they're open i stop the motors and the loop should exit. However the loop is stuck inside the port read check.
You can see down the bottom of the below terminal output
altt 8 of type False azt 8 of type False
is what i'm reading and they're both saying false, but the while loop continues to run as if one of them is true.
Any ideas? i've been staring at it and perhaps i'm not seeing straight.
cheers
