Velocity typecasting.

[Villyam]

https://github.com/trinamic/TMC-API/blob/8e53c85679a7ed8b047c77e97282e7f9d8e62fcd/tmc/ic/TMC5130/TMC5130.c#L226C33-L226C33
https://github.com/trinamic/TMC-API/blob/8e53c85679a7ed8b047c77e97282e7f9d8e62fcd/tmc/ic/TMC5130/TMC5130.h#L28

I think there should be (int32_t) instead of (uint32_t) like:
tmc5130->velocity = (int32_t) ((float32_t) ((XActual - tmc5130->oldX) / (float32_t) tickDiff) * (float32_t) 1048.576);
Because tmc5130->velocity is int32_t and it gave me 0 for negative velocity when testing.

[trinamic-ASU]

We have started to rework the API for all of our ICs. More details could be found here.
We have shifted some functions that were TMC-EvalSystem specific from TMC-API to TMC-EvalSystem project. The issue you have mentioned have been fixed here.

We highly appreciate your feedback!