Hello. Mt6835 in spi mode works well. But it seemed to me that the maximum rotation speed of the rotor had decreased. The rotor rotates evenly in both directions, but has vibrations. When compared to the tmc2209 driver, the rotor rotates much softer when using the tmc2209 driver. I use the voltage torque mode. Also, if I make an effort in the direction of rotation, I have no resistance, so it should be. But if you are against rotation, then there are dips, as if the Magnetic Field is breaking down. Engine nema17.
The engine of the Nema 34 did not start, due to the lack of a driver. @runger @Juan-Antonio_Soren_E Do you think it makes sense to use two BTS7960 drivers for Tests? Frequency ~6000
Compared to what? The MT6701? This is possible - firsly, you can check the SPI speed used, is it the same? For MT6701 we only have to transfer 16bits for one angle reading, while for MT6835, it is 24bits… so this will make a (small) speed difference.
Also, different sensors will have small differences in performance due to parameters like latency, etc… so each sensor/motor/driver combination can need its own PID tuning, really.
maybe… you won’t know until you try, but of course at 6kHz PWM frequency it will make noise…