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i.MXRT1052 Common clock source for peripherals

Question asked by Eamonn Heffernan on May 21, 2020
Latest reply on May 23, 2020 by Eamonn Heffernan

Hi, I'd like to clock a bunch of peripherals from a common clock source, to generate some complex synchronized waveforms. Peripherals of interest include FlexIO2, FlexPWM, LPSPI, QTIMER.

 

Reference Manual Rev 4, Table 14-4 (System Clocks, Gating and Override) suggests that I could use ipg_clock_root for all of these peripherals. I've searched the RM, but can't find any way to switch say FLEXIO2 from FLEXIO2_CLK_ROOT to IPG_CLK_ROOT.

 

Is this possible, and if so, how do I go about doing it?

I'd appreciate any hints.

Thanks

Eamonn

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