STM32 MCUs Products

STM32L053C8 + RTC Management + Standby mode

Hi,I´m actually working with STM32L053C8 moden and i have some questions about how RTC works. I am using STM32Cube IDE and HAL libraries (C++).First, when i wake up (from standby mode) the microcontroller, the code always start from the beginning. Co...

TIM's feature out compare have some problem

Hello, I try to do with out compare, I use TIM out-compare feature and set TIM_IT_UPDATE interrupt, if go into TIM's update interrupt ,clear TIM's all register content , I config TIM second , of course ,same procedure, I config third TIM . second a...

STM32F765 QSPI Dual Bank with Quad lines Means i have 2 QSPI channels ? I can connect 2 QSPI slaves (1- Flash memory, 2 - FPGA) ?

Problem in writing SD card

Hi to all,I am not sure this is the correct forum, but I do not know where to put the question elsewhere.I need to interface with an SD card using SPI interface and I'm experiencing a big issue in write operation (CMD 24) because things quite always ...

Role of System Bank 2 in STM32H7x5

In STM32H7x5 series, the MCU has 2 System Memory banks. Bank 1 is clearly described in reference manual, but not bank 2. My question is:What is the role of bank 2?Can user use bank 2 to flash homebrew bootloader?How to boot to bank 2?

Can we use encoder mode of a Timer for driving pump and also use same Timer to drive the speaker both connected at different channels.

Hi,My requirement is to use encoder mode of a Timer for driving pump. And using same Timer to drive the speaker. Timer 1 channel 1 would be used for Pump and Timer 1 channel 2 would be used for speaker. Timer 1 DMA is used to output sequence of pulse...

Power supply for STM32F030K6T6 use ADC and use ESP-07S to upload data?

My project use STM32F030K6T6's ADC as AC 230v energy meter then upload to my website's server via ESP-07S. Now my design use HLK-PM01 AC-DC 5v and AMS1117 3.3v to power both STM32 and ESP-07S. Folllow AN2834 each VDD add 100nF ceramic cap + 4.7mF tan...

Need to save data to internal flash for the first time. Guidance needed

Hello everyone,For the first time now I need to write some data to the flash memory so it doesn't get lost when the board is turned off.I am using STM32F476-DISCO board. From the data sheet, I see that the main memory block contains 8 different secti...

usart RX pin configure

WHICH ONE IS BEST?i have seen three methods:1, in_floating http://www.micromouseonline.com/2009/12/31/stm32-usart-basics/2, GPIO_MODE_AF_OD https://visualgdb.com/tutorials/arm/stm32/uart/hal/3, GPIO_MODE_AF_PP

High variance in ADC readings

On a NUCLEO-H743ZI board, I am using ADC3 configured like so:16-bit mode 6 MHz ADC clock8.5 cycles sampling timeTriggered by TIM3 to scan 4 channels every 10us BDMA puts the results into a memory bufferThe problem I have is that for a given voltage, ...