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How to decide MPC5744P PLL0 PHI0 output frequenccy?

Question asked by Susan li on Sep 15, 2017
Latest reply on Sep 19, 2017 by Carlos_Mendoza

NXP Expert,

I need help to decide how much the MPC5744P PLL0 PHI0 output frequency is.



From the above C code(mc_mode_init() in sys.c) from MTRCKTSPS5744P example code you posted, it is telling the PLL0 PHI0 output is 160HZ, its input has been selected using XOSC(the output is 8-40mhz),

where  I can find how and why the PLL PHI0 out is set at 160HZ?

question 2: how much and how in this  C motor application the system clock is set at?


Thank you.


Susan Li