Is advancedmotordriver (with respect to the trinamic 2660 line) meant to send motion commands

Controllers Smoothie
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1

Is advancedmotordriver (with respect to the trinamic 2660 line) meant to send motion commands over SPI as well?
Is there a way to set it up so that we initialize the IC over SPI but still use the STEP/ DIR pins for motion?

2

@SirGeekALot this is what you just asked about so you may want to subscribe to this thread.

3

I am adding that exact functionality to Smoothie2 right now :smile:

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for the TMC2130 SilentStepStick

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@Douglas_Pearless awesomeness! But can we run that on current smoothie1 too?

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@raykholo it ONLY does step and dir over the strep and dir lines, it cannot do motion over SPI as SPI CANNOT be used during an interrupt. @Douglas_Pearless not sure what you mean the motorcontroll only sets up the over SPI and motion control can only be done over step/dir lines. it already does that.

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@Wolfmanjm can you elaborate on the config for this please, as none of the examples on that documentation page show how to define a step, dir, or enable pin.

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step dir and enable are configured exactly the same as any other driver. no difference. the advance motor driver only handles the chip setup via SPI. http://smoothieware.org/advancedmotordriver
The step/dir/enable are the same as for any other onboard chip

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@raykholo https://github.com/Smoothieware/Smoothieware/blob/edge/ConfigSamples/Smoothieboard/config#L39

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I updated the wiki docs to add a comment about step/dir FYI enable is NOT done via a pin but via the SPI commands.

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Fantastic,

I hadn’t been into the Smoothie1 code base for a while and had not noticed this new feature!!!

I will have a look at it and it may be easier to port this code to Smoothie2 that figure out why my code breaks the step generation code.

Cheers
Douglas

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@Douglas_Pearless it isn’t a new feature, it has been in smoothie for about a year.

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Well that is embarrassing, I never noticed it :slight_smile:

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@Wolfmanjm Awesome, thanks. I should be able to use the existing EN pin from smoothie as the SPI select pin. Should make things easy. OShpark just shipped my TMC2660 board for testing all this.