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Hooking up two or more motor drivers to the same MCU

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darkclaude
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Hooking up two or more motor drivers to the same MCU

Hello guys using THESAME and SIngle MCU(stm32df4x)  it possible to hookup atleast an additional motor and driver to the ciruit, and customizing code to control two motors at once or theree isnt enough gpio left or it is not advisable at all

 

Teslafly
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Beacuse timers 1 and 8 are the 3 phase pwm generators, and both are in use. The vesc fw cannot drive 2 motors without heavy modification. The microcontroller is capable of it, but you would basically have to rewrite the code from scratch.

TheFallen
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I'll never understand why people are soooooo keen on saving ~£8 on a £60 ESC. It's a 6% BoM cost saving. Big whoop.

skyline1970
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You could see  Unity Dual bldc motor driver, below;

https://www.enertionboards.com/FOCBOX-foc-motor-speed-controller.html

skyline1970
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https://www.youtube.com/watch?v=GZkbB82-YBM

The motors are in parallel and the rotors are locked on the same axis. If the rotors are coupled and synced to the same flux angle the ESC will observe it as a single motor with half the inductance and resistance.