STM32 MCUs Products

STM32L071 VREFINT_DIV

Hello, my work mate made a design where we have to measure a low voltage in a smaller range (0-.120mV) on an Input.His assumption and hardware realization to meet the requirements based on datasheet DS10690 Rev 6. Here on page 63 you can find the ta...

Could you provide to me details about operation in all power modes from 1.7 to 3.6 V for STM32L4XX ?

 I am encountering with a following problem in MCU STM32L432B.1. When the MCU enter to low-power mode (Stop 2) ones does not wake up while VDD is low than 2.1V, instead of it turns to mode with power consumption more 10ma. 2.When operation of the MCU...

hi would you information about hard foult exception i m working on esp8266 and i m using at command when esp conneted a wifi my esp goint to hard fould exeption how can i soleve this problem...

How does it come the RTC shows a time like 33:27 left alone over night?

STM32F446 RTCI seem to have a problem with this part of the MCU.I am using the HAL to retrieve date and time.Yesterday evening I set the time (about 22h something).Time was displayed correctly.Today in the morning I have a time of 33h27 retreived by ...

Problem saving data in flash memory.

Hello, guys!I have problem saving data in STM32L0's flash memory.If I save the data twice in the same location it works fine.If I save the data once CRC check fails - data writing goes wrong?!I have attached my code.Sorry for the "magic" numbers in t...

Mipi dsi with LCD issue

Hi Everybody,I have a difficult problem. I use STM32F469I-Disco to porting new LCD on it.My LCD driver IC are ILI9806E and ST7701s. they are having the same problem.they can be lighted on, but image is not the same as my setting.Example: I use BSP_LC...

How to use VSP on Nucleo STM32F746 board

I have a nucleo F746 board powered from CN1 (USB from the ST-LINK side) and I am interested to use the other USB port (CN13) configured as Virtual Serial Port (VSP) and start debugging with the printf () and log on a PC (the STM32 does not yet have ...

How do I generate 'N' PWM pulses on TIM2 CH4.

I have inherited a PCBA that needs to generate a fixed number of PWM pulses on TIM2 CH4.I have successfully setup TIM1 as the Master (with repetition count = 0) and TIM4 as a Gated Slave.TIM1 CH1 is generating 2kHz PWM indefinitely.TIM2 CH4 is genera...

STM32L433CCT6 RTC calendar incorrect after coming out of shutdown whilst using an external VBAT and LSE

My current code configures the RTC and updates date/time on initial turn on only.void set_date(void) { /* Select LSE as RTC Input */ __HAL_RCC_RTC_CONFIG(RCC_RTCCLKSOURCE_LSE);   /* Enable RTC */ __HAL_RCC_RTC_ENABLE();   RCC_OscInitTypeD...