STM32 MCUs Products

Details on STM32G474 DMAMUX?

The information in the reference manual (RM0440) is very limited. There is an app note: "AN5224 DMAMUX description" but it says it only covers STM32H7, STM32G0, STM32L4+ and STM32WB series.Also, if you search the resources for the STM32G474 this appl...

Why does the freeRTOS CMSIS abstraction does not work properly with several tasks?

I configured my NUCLEO-H745ZI-Q board with STMcube 1.3.0 very simular to the youtube video of digikey ( https://www.youtube.com/watch?v=OPrcpbKNSjU ). But I changed the TIM6 to TIM17, because on my board the TIM6 seems to be reserved for using with t...

IAP issue with STM32L152RE

I am using stm32l152re. What I'm doing right now is uploading IAP (in application programming) to stm32l152re. First, I uploaded successfully through JTAG using the IAR IDE, but the serial communication through uart did not work properly.The procedur...

Changing Baud Rate results in Framing Errors – STM32F303

I have a GPS module I'm talking to at the default 9600 baud. I then send it a command to change the baud rate up to 115200. After the command is sent, I believe the GPS module is correctly switched over to the new baud rate, since I immediately will ...

Newbie easy portable compilation toolchain? Like arduino-cli?

Hi,I try to work on Nucleao L476RG, and I cannot compile.I'm from Arduino world, I'm looking for something all-in-one like their arduino-cli.I tried with gcc but I cannot compile, find right arguments, and it take more than 1Gb installationI tried wi...

How would I use the timer to generate a PWM signal - where, I can modify the width of one pulse? As an example, look at the illustration below; the red pulse is increased in width. Any help would be appreciated. Thanks Craig.

Can links in the new color scheme please be made distinguishable?

HAL RTC driver doesn't set RTC Clock Select bits in RCC_BDCR register.

I am using the stm32f7xx_hal_rtc.c driver to initialize the RTC. I have configured the high speed clock source as the external crystal (HSE) and I have configured the low speed (32 KHz) clock source as the external crystal (LSE). Prior to calling the...

Is it possible that PLL will fail while MCU will still be working?

I'm writing some kind of safe system clock configuration and a bit paranoid. Setup starts with enabling HSE and after stable, it is used as a source for PLL. If HSE fails my program switching to HSI and enables PLL ones again with HSI as a source and...

STM32H755ZI SPI / Behaviour of MOSI after disabling peripheral

Hi everyoneI'm currently working with the STM32H755ZI SPI1 peripheral. I'm using low level driver to read 2 bytes of data. It works fine. I'm transmitting 2 dummy data bytes (0xFF) in order to get some response from the SPI slaves. However, I'm wonde...