About Chubs

Chubs · 2024-07-05

Hello Community,Reaching out to you for feedback on the attached configuration for Vcc on my new STM32 based DAQ board.My objective was to reduce the inductance to the Vcc pins of the MCU (STM32G0B0RET6 64 LQFP package). Hence I clubbed three pins:A)...

Chubs · 2024-06-17

Hello Community, I am trying to confirm with you all a design decision for RC based Low Pass Filter that I plan to install on my the UART Rx pin as the STM32G0 Errata mentions this pin has to have a filtered/noise free input to avoid glitches. I am t...

Chubs · 2024-02-06

Hello Community,We are selecting a high stability 12.288MHz HSE to clock our RTC on STM32G0 series MCUs.Kindly suggest if the HSE/32 which is 384kHz would be able to operate the RTC? I did not find any mentions of the maximum clock frequency for the ...

Chubs · 2024-01-24

Hello Community, I am planning to use I2C operating at 1kHz maximum on STM32G4 & STM32G0 series for measuring temperature from Digital Temperature sensors placed at 2m distance from the main board in an industrial environment using CAT6 (STP) Cables ...

Chubs · 2023-11-23

Hello Community, I am working on a use case where I have 4 remote MCUs that ideally should be synced with a host MCU. I however have no way to even install an external precision Clock source on these remote MCU's (due to various environmental & budge...

Chubs · 2024-06-25

If noise is really an issue, consider using RS232 or RS422 or similar ...@Andrew Neil thanks for you suggestion.The key idea is IF things can be solved with a simple RC passives - why to indulge into another set of CMOS base solutions?Said that, I of...

Chubs · 2024-06-25

@BarryWhit precisely my point, while selecting shunt series resistor & shunt capacitor I am trying to understand what the boundary for large enough was for typical STM32 Rx inputs pins - we have some idea for typical GPIO based input which is in MOhm...

Chubs · 2024-06-25

@BarryWhit,Thanks for your response to the query. The use case is where we have UART interfacing with a offboard remote device (20kbps at about ~20cm of unshielded Twisted pair of cable from a remote wireless MCU) so a RC filter makes a lot of sense....

Chubs · 2024-03-24

Hello @sreejithrnair,The only thing you might have to check is if the odd frequency is able to configure PLL pre-scalers to reach USB 48Mhz clock requirements - that too if you anticipate using the USB FS peripheral. Else STM32 like many other MCUs c...

Chubs · 2024-03-21

Hello @sreejithrnair,Attaching NDK products from Digikey's listing for your reference here.Also, you can opt for Oscillators or Crystals either of them.I have used TI's BAW Resonators for my use case as our devices are exposed to lifetime of high vib...

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User Activity

Decoupling & Vcc Pin Configuration for STM32 MCUs

UART Rx Pin Input Impedance for RC Low Pass Filter Design [STM32 MCUs]

Confirmation about RTC input Clock Frequency when using HSE as clock source

I2C Digital Filter use case

Minimum Frequency for Bypass mode

Re: UART Rx Pin Input Impedance for RC Low Pass Filter Design [STM32 MCUs]

Re: UART Rx Pin Input Impedance for RC Low Pass Filter Design [STM32 MCUs]

Re: UART Rx Pin Input Impedance for RC Low Pass Filter Design [STM32 MCUs]

Re: Oscillator Selection for STM32G4

Re: Oscillator Selection for STM32G4