STM32 MCUs Products

Variable PWM duty cycle signal on STM32F4

Hello everyone!For last week I am struggling to use Variable PWM duty cycle to generate signal for an array of addressable LEDs (WS2812) which I had successfully running on STM32F103.I was forced to use STM32F412 and ever since I cannot port my old c...

[SOLVED] HAL_PWR_EnterSTANDBYMode() does not put uC into sleep mode - part 2

I am using a STM32F746G-DISCO to develop a touch screen interface to an audio amplifier.I am testing the standby mode starting from this discussion:https://community.st.com/s/question/0D50X00009XkeE6/halpwrenterstandbymode-does-not-put-uc-into-sleep-...

Wrong behaviour: Writing on FLASH works only the first time I change the page

Hi to everybody,I'm newbie with STM.I'm using:Board: NUCLEO-L4R5ZIMCU: STM32L4R5ZIIDE: STM32CubeIDE_1.0.0I'm trying to write into FLASH by using HAL library and I'm getting the following unwanted behaviour (CAPITAL LETTERS):- The writing works fine O...

printf usage in stm32

Hi,I am using printf for my application to debug the output using UART.But I am facing the problem. void StartSender1(void const * argument)   {   /* USER CODE BEGIN 5 */ /* Infinite loop */ for(;;) { printf("Sender1 Sending\n"); osMessagePut(Queue...

before sold external cryristal, there is no problem to download program, but once sold external crystial, and started external crystal in program, then, always failure to download program. error: flash download failed, -"Cortex-M3"

where can I get STM32L431 QUADSPI memory controller reference design

All do I need is how to initialize, erase, read and write (block and single data) the QUADSPI memory for STM32CubeIDE platform.Thanks in advance

Problem with boot while programming stm32f407 mcu

I have a boot problem with the STM32F0407VGT6 (uVision V5.14.0.0.). I designed a custom board and sadly forgot to connect the Boot0 (floating) to GND. Because of that, I can program the MCU, but the controller don’t starts my program by default until...

Encoder Counter be decreased in sometimes when is the motor running in one direction?

When I used Encoder Mode on TIM2, I have set the motor to runs in one direction, so data in the CNT register must be increase. but it seems to be decreased in sometimes.So anyone can explain to me about it?I'm using encoder mode TI1&TI2, Counter Mode...