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Commanding several motors using the RS485-shield for Raspberry Pi ?

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Hello there,

I have bought a RS-485 shield for Raspberry Pi a couple of days ago, in order to drive two stepper motors that only use serial communication (sharp look toward Trinamic). I managed to command one motor, however, if I add the second one in parallel, both move simultaneously, having obviously the same target ID.


Could you tell me if this is linked to the way I drive them (I use a C-program of my own, however, the demo-code on Learn-LinkSprite works as well) or if I should ask Trinamic about this?


Thanks in advance,


Have a nice day,


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