How to disable DSP in mxrt595

[Wayne2]

Hi NXP team

We want to measure the power consumption on the mxrt595, but the base power consumption is about 44mA, that is not match the data sheet, we think maybe the dsp is active which affect the current.

So we want to run on M33 in active mode, and disable the dsp.

How to disable DSP, make it no clock. Could you tell us how to disable it?

[Alice_Yang]

Hello @Wayne2 

How about SDK driver DSP_Deinit():

void DSP_Deinit(void)
{
DSP_Stop();

CLOCK_DisableClock(kCLOCK_Dsp);
POWER_EnablePD(kPDRUNCFG_PD_DSP);
POWER_ApplyPD();
}

BR

Alice

[Wayne2]

Hi @Alice_Yang 

I have added the DSP_Deinit function to the main function, and I measured the current, but the current was still high(about 44mA).

[Alice_Yang]

Hello @Wayne2 

How about check other configuration Data Sheet mentioned:

BR

Alice