STM32 MCUs Products

[BLE] When can I use 'aci_gap_get_security_level' command?

After connection?Or after pairing?

Are there rules for selecting a BLE device address

One of the addresses we selected for the device appeared as not connectable on android scan.

how to return STALL to USB OUT transaction and still continue with the next transaction

I am trying to implement a USB 2.0 FS device on STM32H5 without using HAL or anything else. There might be a need to send back a request error (STALL) during enumeration:- and it is OK to return STALL to an IN transaction, so I can set STTX to STALL ...

STM32 Receive Multiple DMX Universes

Hey there,another question. I can successful output 8 DMX universes received via Artnet using DMA (Mem->Periph). At the same time I want the possibility to receive upto 8 different DMX signals connected to the MCU. Therefore I hooked up the receive l...

STM32H745 ethernet and telnet uart!

Hi All, I am looking to use the STM32H745 dual-core chip in my next design. I currently use a CH9121 device that handles the transparent ethernet to UART bridge for me and looking to incorporate this functionality into the STM32H745 on the M4 process...

Bytes lost when reading using LPUart1 (MB1641 - WB15CC) in STOPx Mode

Dear ST professionals,Continuing the previous problem reported at https://community.st.com/t5/stm32-mcus-products/mb1641-nucleo-stm32wb15cc-slowness-between-ble-and-uart/td-p/603759, I have problems when use LPUart to wake up from STOP Mode. I tried ...

Resolved! STM32F4 - make watchdog IWDG faster if it is already active?

I want to use the IWDG watchdog with the maximum possible time delay of approx. 30 seconds. As the device cannot be switched off, It has to go into standby mode (HAL_PWR_EnterSTANDBYMode) instead. The issue here is, that the watchdog would wake it u...

Can ROHS BGA be used with SnPb solder?

It's my understanding that it is a bad idea to mix lead-free and leaded solder, and that it can cause cracks.I'm using a TFBGA100 package on an STM32H7 and have some long-term reliability requirements. In order to avoid tin-whiskers, I was considerin...

How to have full control over RTC and LSE with HAL lib only (not including LL lib)

In my project it can happen, that the LSE gets blocked due to a CSS failure detection after repowering. I found this good article on the ST community which maches alomost with my case: https://community.st.com/t5/stm32-mcus-products/lse-fault-recover...

Resolved! purpose of RCC_RSR_RMVF

I read RCC RSR to determine the cause of reset. It is not clear to me the purpose of RMVF bit. I guess it resets the other flags but why would I want that ? I wonder if I am missing something.

STM32 MCUs Products

Forum Posts

[BLE] When can I use 'aci_gap_get_security_level' command?

Are there rules for selecting a BLE device address

how to return STALL to USB OUT transaction and still continue with the next transaction

STM32 Receive Multiple DMX Universes

STM32H745 ethernet and telnet uart!

Bytes lost when reading using LPUart1 (MB1641 - WB15CC) in STOPx Mode

Resolved! STM32F4 - make watchdog IWDG faster if it is already active?

Can ROHS BGA be used with SnPb solder?

How to have full control over RTC and LSE with HAL lib only (not including LL lib)

Resolved! purpose of RCC_RSR_RMVF

STM32L0 RTC AlarmA - set to interrupt at the desir...

STM32G070 FLASH program at negative temperatures

H755 - STLink Virtual com port do not appear in Wi...

NUCLEO-H7S3L8 reading using I3C protocol with BOS1...

USB-PD attention callback never get's triggered?

STM32N6570-DK VENC RTSP Server Ethernet not Initia...