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How To Design Best Power Supply Filter  for STM32F405 ??????????

Question asked by khastar.mehdi on Jun 2, 2017
Latest reply on Jun 3, 2017 by Zhitai Liu

Hi Dears

 

 

I use STM32F405 as MicroController and I have some problem in hardware.

For example i design a circuit with STM32F405 and i supplied it with HI-LINK power supply module.

When I connect some devices into a power outlet ، microcontroller does unwanted things but it dosent RESET.

I putted some filters that contain capacitors and inductors.

I changed my clock source and i reduced the system core clock 

I use 16 MHZ oscillator to increase stability. 

But the problem is not resolved.

 

so 

 

How can i resolve this problem???????????

 

thank you 

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