STM32 MCUs Products

STM32L462CE with external SPI flash

W25Q16JVSNIQ winbond external SPI is attached to my STM32L462CE MCU. I want it to store some data so how can I do it? can you please provide some example code for this.

STM32L4 Pin State in shutdown mode

We are trying to set the STM32L431 controller to shutdown mode.During the shutdown mode, Pin PA15 shall be at low level.Unfortunately the pin does not stay at low level during shutdown.We have configured the pin with „HAL_PWREx_EnableGPIOPullDown(PWR...

Run-time UART Buadrate change

I am working on STM32L462CE MCU and my requirement is to change the baudrate of UART at run-time. So, how I do that?. Can you please give me the solution for this. First set to 9600bps, after 921600 and at last 115200.

STM32L462CE internal temperature and battery voltage read

I want to read internal MCU temperature and battery voltage of STM32L462CE. So, can somebody help to do this?

How do I configure ETM tracing on an stm32?

Hello, I am trying to use a segger jtrace pro debugger with an stm32303E-EVAL board through the ETM trace connector, however I am not seeing a signal on any of the trace pins including the trace clock when running my program. I've ensured I have cont...

Receive data from COM port using Interrupts on STM32L475.

I am trying to send data to com port from PC and receive it using interrupt on the MCU. Is there any examples or documentation that I can use as reference?

What criteria (requirements) are used to determine the HSE clock has failed (sets the CSSF interrupt in the RCC_CIR register) on a stm32f103x processor?

Documentation simple says the HSE clock failed. What does "fail" define. Does "fail" imply that there are no clock oscillations applied to the HSE pins? Or a frequency below some value that will set the CSSF flag in the RCC_CIR register. What would b...

NUCLEO F722ZE CubeMX CDC USB not enumerating ? Try this ...

Hi, I just want to give a short workaround for an issue i had with the NUCLEO F722ZE board. The CUBE-MX project (NUCLEO F722ZE selected - no custom build) does not work out of the box for CDC devices. In order to fix it i changed the default CUBE-MX ...

What state is the port pin in between GPIO MODER changes and GPIO AFR changes?

Consider: The pins are ultimately driving Power Mosfets, wherein the state of the outputs is of significant importance.However, between the time when one changes the MODER register(s) for the appropriate pin(s) to AF and the time when one changes th...

how to blink 2 LEDs with a Timer?

Hello everybody,I wanted to turn 2 LEDs with Timer on / off. The period is 4s and the first LED should be on for 2s and off for 2s. and then the 2nd LED should do the same but not at the same time. But unfortunately I can not do that with a timer and...

STM32 MCUs Products

Forum Posts

STM32L462CE with external SPI flash

STM32L4 Pin State in shutdown mode

Run-time UART Buadrate change

STM32L462CE internal temperature and battery voltage read

How do I configure ETM tracing on an stm32?

Receive data from COM port using Interrupts on STM32L475.

What criteria (requirements) are used to determine the HSE clock has failed (sets the CSSF interrupt in the RCC_CIR register) on a stm32f103x processor?

NUCLEO F722ZE CubeMX CDC USB not enumerating ? Try this ...

What state is the port pin in between GPIO MODER changes and GPIO AFR changes?

how to blink 2 LEDs with a Timer?

I3C: TXFNFF never set when debugging

USB Type-C CCx Line Configuration

USBPD EPR mode

STM32H750 and IMC20948_SPI protocol

UART RX DMA Implementation Issue

STM32F105RC USB Device not detected