Configure multipurpose_io pin as output

aprabu

I'm new to ouster lidar concepts. I apologize if my questions in already answered.
I am trying to configure the multipurpose_io pin of the OS1 sensor interface as an output which will give me a signal at 10hz (a pulse every time the lidar completes a full rotation). I went through the software user guide and figured out that using the below will activate the pin and output a pulse that I require.

set_config_param multipurpose_io_mode OUTPUT_FROM_ENCODER_ANGLE
set_config_param sync_pulse_out_angle 360
reinitialize

When I try to check the output signal from the multiputpose_io pin with an oscilloscope, I get a flat line. I'm not sure what I am doing wrong.

Or are there any changes I can make to the launch file, os1.launch from the ouster_example package?

It'll be great if someone can help me out. TIA!

SlavaPavlov

Dear @aprabu
There is a note in the User Guide that mentions this behavior if the pulse width and mode are not configured correctly.
Can you confirm that this is the case?

Note: If sync_pulse_out_pulse_width x sync_pulse_out_frequency is close to 1 second, the output pulses will not function (will not return to 0). For example, at 10 Hz rotation and a 10 ms pulse width, the limitation on the number of pulses per rotation is 9.

Looking forward to your reply!
Best regards,
Slava