Accessing requested state from ASCII protocol

1

I am trying to build a remotely operated odrive application which I was hoping to use only the ASCII protocol serial comms to perform all the tasks I need. I would like to be able to do these things over the serial ASCII

-perform a motor calibration
-enter closed loop control
-enter idle state

My current prototype uses a combination of odrivetool and ASCII protocol all called from within the same python program, it works great but I would like to do everything over a wireless serial connection.

I have tried:

def go_live():
ser.write(b’w odrv0.axis0.requested_state 8’)

def go_idle():
ser.write(b’w odrv0.axis0.requested_state 1’)

but it doesn’t do anything. In the documentation it says most settings are available through ascii if they have a numerical argument, but I am having no luck with this.

Could I do this another way? Do I have to put something with a python interpreter next to the odrive to run odrivetool on my remote machine?

Here are the notes on axis states

First post, Thanks!

2

realised i didn’t have a \n at the end of the string, still doesn’t work though!

3

You may want to check the Arduino library to see how it’s done there? Because that looks to me like it should work

4

I’m doing it in C with this code:
printf(“w axis%u.requested_state %u\n”,axis, requested_state);

Syntax is obviously different, but notice that I’m not putting “odrv0.” in front of it.

-Denny

5

Thanks Desterline, I took off the odrv0 and it worked perfectly!

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