[DSF Extension] Exec On MCode (was: Shutdown SBC)

GoremanX

Is this still the easiest way to issue commands on the pi in SBC mode? Or has a native way been implemented in RRF in recent releases? Just wanted to check before investing time and effort in something that's obsolete

GoremanX

Hah! Too late, I'm already neck-deep in implementing it

@wilriker How do I make it execute the command and exit right away and return success without having to wait for the command to complete? I tried sending my command to background with & but that doesn't appear to work. I'm trying to get it to run a process which continues through the duration of the print, but executing the M code just causes it to hang until the process is complete. I thought it would be execAsync, but that gives me an error on the command line saying that's not a supported flag

garethky

I need this in my life! I was going to do something evil with file monitoring but this is much more direct.

I'm planning to use it to run some Python to calculate a bed heightmap to enable probing magnetic beds with irregular optimal probing locations.

GoremanX

@wilriker I don't think -execAsync is implemented in the 5.1 release. I just downloaded the source code for that release and there's no mention of execAsync anywhere. It's only implemented in the current (uncompiled) source code in the repository. Any chance you could push out a more recent release with the current code? It's the last bit I need to get my setup working.

wilriker

Release v.5.1.1

This release introduces three new features:

New parameter -execAsync. This will execute all commands asynchronously returning control immediately back to DCS. This flag is active for all captured M-Codes per execonmcode instance, i.e. if some commands should be performed asynchronously and others synchronously start two execonmcode instances.
New parameters -interceptionMode to select between Pre (default), Post and Exectuted
New parameter -noFlush. This will prevent flushing the code channel prior to executing the attached command. This is useful if the command can be executed once it is read from disk. As with -execAsync this applies to all commands of an instance of execonmcode.

As usual it can be downloaded from GitHub Releases page.

@GoremanX here you go.

GoremanX

@wilriker Thank you!

GoremanX

Works perfect... now I just need to move the camera off-system. Apparently while the Duet is printing (in SBC mode), the SPI bus on the attached pi gets too busy to handle the HQ camera feed and all the captured photos get messed up

Phaedrux

@GoremanX said in [DSF Extension] Exec On MCode (was: Shutdown SBC):

Apparently while the Duet is printing (in SBC mode), the SPI bus on the attached pi gets too busy to handle the HQ camera feed and all the captured photos get messed up

Interesting. Pi cam module?

GoremanX

@Phaedrux said in [DSF Extension] Exec On MCode (was: Shutdown SBC):

Interesting. Pi cam module?

Yeah it's a genuine Raspberry Pi HQ camera. It works fine as long as the Duet isn't printing, but as soon as it starts printing, the photos end up with very random wide magenta bands all the way across and weird lines of noise. At the end of the print everything returns to normal. So I was gonna build a separate camera using the same HQ module and a Pi Zero W

Phaedrux

@GoremanX said in [DSF Extension] Exec On MCode (was: Shutdown SBC):

a separate camera using the same HQ module and a Pi Zero W

I do the same with MotionOS and it works quite well.

Greg_the_maker

Hello,

I'm a complete idiot when it comes to programming and I am finding the instructions a little vague. I feel I need some assistance please

The Installation is as follows.

Download.

Does this mean git clone? That's what I did anyway.

Rename to just execonmcode

Rename what? There are a load of .go files in the directory, do I rename one of those?

chmod etc

The rest of the install I can manage. I think.

Thank you for your time.

PCR

look some pots up. I made a video about this @Greg_the_maker

Greg_the_maker

What is it i need to be looking for?

PCR

@PCR said in [DSF Extension] Exec On MCode (was: Shutdown SBC):

made a little videos how to install it. Mainly for my own reference later

How to install and test

How to make it as a systemservice

Here you go

Greg_the_maker

thank you

wilriker

@Greg_the_maker Thanks for pointing that out. I will point the download instructions towards the GitHub Releases page. For there it should be clear what is meant by renaming also.

Greg_the_maker

Is tehre a way to get terminal messages displayed in the console?

For example I need to see a list of usb devices with lsusb, is it possible to have that list returned as an M117 message or similar?

wilriker

@Greg_the_maker In theory this is possible. Right now successful execution will discard the application output and error in execution results in an error being sent to DCS what failed (e.g. file not found but still not the output of the application).

I could add that but I am not sure how it will deal with line-breaks.

Greg_the_maker

@wilriker Ahh ok. was just a thought. would be a nice feature to have though

wilriker

@Greg_the_maker I have to correct myself. In case of an error it will indeed return the output of stdout and stderr combined as an error message. But since we are in short-lived world things can be changed quickly and thus:

Release v5.1.2

This release adds a new flag -returnOutput to be able to send the collected output of a successful run back to DCS. Prior this was only the case if the execution of the command failed.
Note that this cannot be combined with -execAsync.

Download

As usual get it from GitHub Releases page.