python embedded in linuxcnc isn't directly connected to the HAL module library. The embedded python is for remap and is optional. I suggested the HAL module because it's written in C++ which I assume you do know. It's a stand alone module for communicating with HAL's shared memory.
There are also many components that connect to HAL's shared memory I'd suggest the C based drivers as comp hides the details. these can be used as reference for the basic premise - some are well commented. Chris ________________________________ From: Reinhard <[email protected]> Sent: May 14, 2020 7:22 PM To: EMC developers <[email protected]> Subject: Re: [Emc-developers] spindle status Hi Chris, On Donnerstag, 14. Mai 2020, 21:01:50 CEST Chris Morley wrote: > reading and writing HAL is super useful for GUIs. python's HAL module would > be a good source for ideas. it's C++ based. halcmd is C and might be a > little easier to digest. My problem is, that I was able to build a hal-component. I did a dummy toolchanger, that was pretty easy. And it worked, as long as I started it with halcmd. As soon as I start a program with halaccess without the help of halcmd, it crashes. And I have no idea why. All dev-tools I know don't really help on it. I would like to access hal from a library, that is not in the halcmd environment, like I did for nml-layer. But I don't know, how to do that. Python isn't any help for me, as I don't know Python and python is embedded in Linuxcnc, so I don't know the startup environment too. May be I have to dive into halcmd. Next timeslot will be reserved for research :) cheers Reinhard _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
