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What is the advantage of using a TMC4210 for the tmc2660 ?

Posted by khessels 
What is the advantage of using a TMC4210 for the tmc2660 ?
July 10, 2018 10:09PM
I'm looking to build a TMC2660 bob like board, but the official bob comes with the TMC4210 however the spi goes to both the 4210 and the 2660, can someone explain what is the advantage of having the 4210 there ? I mean why is the spi connected to both chips instead of just the 4210...

[www.trinamic.com]

Edited 3 time(s). Last edit at 07/10/2018 10:16PM by khessels.
Re: What is the advantage of using a TMC4210 for the tmc2660 ?
July 13, 2018 05:28AM
The TMC4210 provides a trapezoidal ramp generator so that the host microcontroller can just send the required movement amount, speed and acceleration parameters and the TMC4210 will generate the steps. It's doubtful that this is useful in a 3D printer application, where the movements of several motors need to be synchronised.

Edited 1 time(s). Last edit at 07/13/2018 05:29AM by dc42.


Delta printer calibration calculator, mini IR Z probe, and colour touch screen control panel: [escher3d.com]

Large delta printer, and other 3D printer blog postings: [miscsolutions.wordpress.com]

Disclosure: I have a financial interest in sales of the Panel Due, Mini IR height sensor, and Duet WiFi/Duet Ethernet.
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