How many quadrature signals can the S32k144 take as input?

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How many quadrature signals can the S32k144 take as input?

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ruihang_wu
Contributor III

My project need to control 3 motors and keep track of their positions. I am aware that FTM1 and FTM2 are the only modules that are capable of reading quadrature input. But is it like PWM generation using the FTM where each model has 4 channel pairs and each pair can handle one quadrature pair, giving it 8 total? Or can module only handle one quadrature pair, making it only two total?

I am working with the model based design toolbox and the quadrature decoder block seem to suggest it is the second.

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adriantudor
NXP Employee
NXP Employee

Hi Ray Wu,

S32K144 has only 2 quadrature decoders, one for FTM1 and one for FTM2. Each FTM has one counter, so you can't use more than one quadrature decoder per FTM.

Best regards,

Adrian.