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

[l90mehdi]

Posted on June 02, 2017 at 17:09

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 

#filter #stm32-power-suplly-filter #power-supply-filter #stm32-power-supply

[AVI-crak]

Posted on June 02, 2017 at 17:46

The response requires an electrical circuit of the device, and a block program structure (draw cubes).

Psychics on vacation.

[Zt Liu]

Posted on June 03, 2017 at 10:14

1. Which hi-link module? I just have some of them.

2. If you simply use a power supply directly to MCU, does it work?

3. check Reset pin

4. make sure the mcu is still alive.