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Forum Post: RE: LAUNCHXL-F28P65X: MCU solution for sensored motor inverter

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Hello Ti, I have an additional question, I looked a bit at the SinCos Library, I saw the this requires an index pin, but my sensor does not have any. So, I think, I can’t use it right? What would you suggest in this case for the implementation? The sensor used in my motor does have an offset, so the POSMGR does not make any sense I think, I will build my own preprocessing circuit. And sensor only provides sine and cosine with and common ground. I’ve never worked with these kinds of sensors, do you have any hints for the implementation, like errors in amplitude or something? I saw that the QEP can be combined with the SinCos Encoder, is this only for speed measurements or are there other advantages? (In the case I have no index signal) Best regards, Daniel

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