Lathe Spindle Control Help Needed in PNCCONF

cmorley wrote:

Looking at the source-code, scalemax, minlim and maxlim are _parameters_.

Andy is there a good reason those pins are params? could we change them?/quote]

Pins are a bit more work for the driver writer. And funny things might happen to internal calculations if they are changed "live".
I can have a look into it, but I don't know quite when.

cmorley wrote:

I assume you mean u might use the param as 'memory' rather then copying it at the beginning of calculations and setting the param after.

It's a bit more than that. parameters can just be ordinary variables in C, whereas pins need to be allocated a block of shared memory, and then the driver has to keep track of them and free that block of memory when the driver exits.

Also, in the case of smart-serial devices the pins are created with names given by the firmware, and allocated memory accordingly. The scalemax etc params are extra things created as partners to a specific type of smart-serial entity.