S32k148

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S32k148

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SYP
Contributor I

Hello sir, can I ask for some support.

  I got some problem, when I use S32K148 on a item, it gose wrong  and the phenomenon is that when trigger the software reset, the reset pin continues to pull down sporadicly. It happened rarely but it confuses me really could you please me tell why would it happen.

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Robin_Shen
NXP TechSupport
NXP TechSupport

Hi 

For all reset sources, the RESET_B pin is driven low by the MCU for at least 128 bus clock cycles and until flash memory initialization has completed. It is normal for Software reset (SW) as one of these reset sources to drive the RESET_B pin low for at least 128 bus clock cycles.

25.2.4 Reset pin.png

Can you post a waveform obtained by an oscilloscope to show that the reset pin continues to pull down sporadically?


Best Regards,
Robin

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