Skip to main content
PYaro.1
PYaro.1
Visitor II
July 1, 2020
Solved

Review STM32F405RGT6 minimal design

  • July 1, 2020
  • 1 reply
  • 1622 views

Hi!

I am designing a microcontroller (STM32F405RGT6) circuit board with a minimal configuration.

Is this a normal circuit that I developed?

The microcontroller will be uploaded firmware on USART1.

BOOT1 and BOOT0 are connected to jumpers.

 

Please show me my design mistakes. I was guided by AN4488. The electrical circuit is attached in the files below in pdf or jpeg format

Thank you!

This topic has been closed for replies.
Best answer by TDK

Values for C12/C13 seem pretty low. Typical values are more like 10-20pF. Going to depend on what X1 is.

L1 seems odd. I can maybe see it being included if there's a long wire between VDD and this board. But if your VDD rail generation is right next to the chip, I'd remove it. If you're trying to filter for analog reasons, then L1 should be between VDD and VDDA. It'll probably run fine like this though.

Seems fine otherwise.

1 reply

TDK
TDKBest answer
July 1, 2020

Values for C12/C13 seem pretty low. Typical values are more like 10-20pF. Going to depend on what X1 is.

L1 seems odd. I can maybe see it being included if there's a long wire between VDD and this board. But if your VDD rail generation is right next to the chip, I'd remove it. If you're trying to filter for analog reasons, then L1 should be between VDD and VDDA. It'll probably run fine like this though.

Seems fine otherwise.

"If you feel a post has answered your question, please click ""Accept as Solution""."
Terms & ConditionsAccessibility statement