How to decide MPC5744P PLL0 PHI0 output frequenccy?

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How to decide MPC5744P PLL0 PHI0 output frequenccy?

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Contributor III

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

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2 Replies

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NXP Employee
NXP Employee

Hi Susan,

 

It is good to hear you found the answer, please notice that the MCUXpresso Config Tools supports Cortex-M Kinetis and LPC devices. MPC devices are not supported.
 
I'd recommend to submit your questions to the MPC related community in the future:

 

https://community.nxp.com/community/s32/mpc5xxx


Hope it helps!

 

Best Regards,
Carlos Mendoza
Technical Support Engineer

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Contributor III

I found answer by myself.

Thank you.

Susan Li

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