STM32 MCUs Products

Hello. I am using STM32L476 nucleo board. I am facing problem in SPI communication.

I am trying to communicate with a peripheral device through SPI interface using the HAL SPI library functions. But the function is not working properly. It is getting stuck inside the HAL_Delay function. HAL_SPI_Transmit function just executes an emp...

How to re-enable the timer after a One pulse goes off (OPM)?

Hi guys I am using the stm32h753zi MCU and writing my own drivers to use the WS2812B led strip.It uses a PWM to determine how much of the RGB you want. I got the PWM part down and the OPM done, the problem is that I want to send let say a duty cycle ...

The debugger shows me variable differently from as i declared

I declare this two variable globallyuint8_t data_rcv_flg[1] = { 0 }; /* To avoid reuse of data */ uint8_t run[1] = { 0 }; I use this variable here:MODEM_ConfigTypeDef modem_cfg; modem_cfg.buff = data; modem_cfg.rcv_flag = data_rcv_flg;   PROTOCOL_Con...

Failed to execute MI command - STM32L151V8T6A

I am working with CubeIDE 1.4.0 on Windows 10 and using STM32L151V8T6A on my prototype board.However not able to fix the errors below.Would be of great help to get to know and fix the causeThanks a lotError message from debugger back end:Error finis...

Reduce ADC sampling rate

HiThe default stm32h7 ADC sampling rate is 50MSps.how can I reduce it using HAL settings?something like 50KSps?Is it possible to do so during run time while the is ADC is already on?Is there any risk of using the internal ADC at the maximum sample ra...

How to use Bluetooth module with my STM32L4 ?

Hi , I just want to know how to use internal Bluetooth module in my STM32L4. I tried to make this tutoriel : https://wiki.st.com/stm32mcu/wiki/STM32StepByStep:Step5_Build_an_IOT_systemi have made all for instruction of this tutoriel and the IDE show...

Hello,I use microphone and When I talk I get the data from microphone to eeprom.I want to playback to speaker from eeprom .I think,I have to produce analog signal.But I shouldn't use DAC .How can I produce Analog signal without DAC in stm32 ?

How to programm RTC Alarm for awake STM32 from standbye mode every 24h?

Hey everyone,I'm programming an auotmatic irrigation system for studies. I need help with the programming of an RTC alarm to awake my STM32F4 from standbye mode. After standbye mode it should start the programm from the beginning (like an reset). Unt...