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Surveyor Robotics Forum › Surveyor Robotics Forum › SRV-1 / SVS Blackfin Hardware
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Detecting interrupt from tilt sensor (Read 695 times)
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Detecting interrupt from tilt sensor
11/06/09 at 10:36am  
Out tilt sensor (LIS3LV03DQ 3 axis accelerometer) sends an interrupt after reaching a particular measurement to the blackfin chip based on some code given from ST's website.  Our issue is that we are not sure how to make the blackfin use this interrupt to execute given code.  On our nav board we are trying to have the robot "realize" that it's gone XX degrees off course and then correct the direction based off this.  We just don't know how to use that interrupt on the actual chip.  Any advice would be great!
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Re: Detecting interrupt from tilt sensor
Reply #1 - 11/06/09 at 11:57am  
We don't use interrupts in the SRV-1 code.  You might get some ideas on using interrupts from this thread, but I suspect an easier approach will be to modify the failsafe logic in the main polling loop in main.c to monitor for values that are out of range.
 
As regards using the tilt sensor, is there for a flying robot ?  The tilt sensor will indicate attitude change, but you need gyros to detect off-course drift.
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