STM32 MCUs Products

[ NUCLEO-L552ZE-Q ] Why "EXTI Line 14 interrupt " not "EXTI line 13 interrupt"?

I tried this tutorial"https://www.stmcu.com.cn/ecosystem/chip/chipfamily-STM32L5-4", it was not in English. bu the illustration is clear, I tried it in STM32CubeIDE version 1.4.0 on Ubuntu 20.04.1 LTS. When I went to the last step - Setting NVIC_S an...

Keeping PA15 low during the init

Hi community,I'm using STM32F303RE, in that I'm using PA15 as a GPIO which is connected to a Relay, but I recently found out that the PA15 is a JTDI pin which is being pulled up internally, so whenever the STM32 resets, it gets high and after GPIO_in...

Reboot necessary after OTP write?

I am using the STM32L432KCU for a project. I intend to use the OTP area for writing persistent device information (serial number, encryption keys, etc).Is a reboot necessary after writing to the OTP area?Can the OTP region be written to 32 bits at a ...

some question about DALI Slave in STM32F

DALI_RX port and DALI_TX port have been initiated twice in" void DALI_Init(TDLightControlCallback LightControlFunction) " and "init_DALI(OUT_DALI_PORT, OUT_DALI_PIN, INVERT_OUT_DALI, IN_DALI_PORT, IN_DALI_PIN, INVERT_IN_DALI, DALI_Interrupt, DALI_Err...

USART3，USART4 how to use

DearI use the STM32H7B3I-DK this board,and I read the manual.The instruction says I can use CN11 digital pin name D0 and D1,but D1 is (USART4_TX)​,D0 is (USART3_RX).Then how do I use the USART3, because do not find USART3_TX​

I am using stm32h745 MCU for communication with external nVRAM using FMC example which is given in Repository. while writing to the memory chip select as well as OUTPUT Enable signals are coming as expected from MCU but i am not getting write Enable .

I am using stm32h745 MCU for communication with external nVRAM using FMC example which is given in Repository. while writing to the memory, chip select as well as OUTPUT Enable signals are coming as expected from MCU but i am not getting write Enable...

Hi, i am using stm32l4xx controller and facing the issue with flash. whenever the device is powered up the previous content (code) is not running could u please suggest what could be the problem.

NUCLEO H745ZI can't use DMA for DAC like shown in examples online with M7, only M4

SOLUTIONBuffer was being put into DTCM by cube. Ensure it doesn't do that, and you should be set.I want to start by saying that it works on the M4, but not on the M7 and I don't know why. The M7 on pretty much all the peripheral configurations I've s...

STMStudio GDB source code

Hello all from ST!The STMStudio ships a modified version of an open source software called GDB:As you see from the output above the GDB is licensed under the terms of GPLv3+.The GPLv3+ license require the modified sources to be shared.Could someone p...