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TMS320F28379S: Problem with Position manager for amplifying a signal

Part Number: TMS320F28379S
Other Parts Discussed in Thread: BOOSTXL-POSMGR, TIDM-02009


I'm using the Position manger of TI and using the ExIn to ampliying a sine signal to be use for resolver, but I don't see anything at the output which is ExOut pin. I assigned pictures related to the signal that I'm passing from DSP to position manger (DAC B (pin 70)) by osciloscope, in addition I connect to 15v supply voltage to J16.
I don't know where is the problem that I don't get any signal from ExOut.