I'm using STM32F746ZG and use five UARTs. All UARTs are working fine. Can someone tell me the procedure to change the baud rate on the USART once it has already been initialized? I'm using USART6 a...

I am stuck with HAL_Delay() function. When i call this function HAL_Delay() , control stuck in infinite loop. While searching for the problem, I found this http://www.openstm32.org/forumthread2145...

I using an STM32 (L0 5) HAL I need to disable IWDG or WWDG before entering in STOP mode. The below code is working fine until IWDG is resetting the MCU from STOP mode. For WWDG usage this is much f...

I have an application that I am porting from the Keil IDE to build with the GNU toolchain due to license issues. I have successfully be able to set up, build, flash and run the application on the d...

Upd. See the end of post for working code I'm already mad with this. How can I make checksum from CRC unit on stm32f103 match with software implementation? Stm has polynom 0x04C11DB7 and reset val...

I am trying to implement UART in DMA mode to transmit a simple string every time a push button is pressed. So I have used CubeMX to generate the code and I have configured UART2 TX DMA in normal (...

I have been trying to create a neatly-organized makefile project template utilizing the ARM mbed library. I have already solved a few of the problems (see this post) related to header file paths. H...

Context is: STM32H753 bare-metal software compiled with arm-none-eabi-gcc. The reset handler is implemented in C and located in Flash memory: void reset_handler_c(void) { asm_func(); } The asm fu...

I am trying to generate CRC with STM32L4 hardware modul. I would like to validate fatfs files so basically I have byte arrays. I am using this CRC generator. Unfortunately I cannot figure out how ...

Introduction I am a student who wants to roughly measure the interrupt latency of ARM Cortex-M series chips without using an oscilloscope. However, I have encountered a very peculiar issue that has...

I'm trying to get the external interrupt running on a Nucleo-F030R8 and hit a wall. Everything is configured and runs just fine in step mode but when I'm connecting my board to another testboard ...

The standard technique to enforce atomic access to volatile variables shared with ISRs, via "atomic access guards" or "interrupt guards", in particular when running a bare metal...

I am trying to flash a blue-pill clone with a CS32F103C8T6 chip using the AC6 SystemWorkBench and a ST-LINK v2 device. It is a project built from STM32CubeMX - I am using a MacOS Mojave machine. He...

I tried to use the hardware NSS signal with the HAL library, but I can't find any function to make the NSS pin have a low or high level. I also tried to find the answer in the HAL documentation, bu...

As the title said, can I populate automatically c_cpp_properties.json from an existing Makefile? Edit: For others trying to import makefiles, I have found a set of scripts that perform exactly wh...

I am confused with the clock system on my STM32F7 device (Cortex-M7 microcontroller from STMicroelectronics). The reference manual does not clarify the differences between these clocks sufficiently...

I'm working on a stm32f3 dev board, and met an error /opt/homebrew/Cellar/arm-none-eabi-gcc/13.2.0/lib/gcc/arm-none-eabi/13.2.0/include/stdint.h:9:16: fatal error: stdint.h: No such file or directo...

I am brushing up on microcontrollers, using the STM32 series. (Specifically using the STM32F072BDISCOVERY board). I am having some trouble understanding the use of timers and their various modes. ...

I'm working on a bare-metal STM32 project, compiling on a Linux x64 host. After upgrading my toolchain from gcc-arm-none-eabi-11.2-2022.02 to arm-gnu-toolchain-11.3.rel1-x86_64-arm-none-eabi, I get...

On the STM32F103, the erasing of a flash page takes 20ms during which the core stalls for me. It's not clear from the ST PM00042 Flash programming manual whether the core would always stall when er...

I used the STM32Cube initialization code generator to generate an initialized Timer function. To generate a fixed duty cycle PWM signal I added HAL_TIM_Base_Start(&htim1); //Starts the TIM Base...

I want to log out from stm32f405 via usart. In my syscall.c file i realize function to print via usart: int _write(int file, char *ptr, int len) { int todo; for (todo = 0; todo < len; todo++...

I am emulating code from an embedded system (stm32, Keil µVision 5, MDK-ARM) on a PC (mingw32, 32bit arch). The alignment of the ARM compiler does not match my desktop mingw build: // ARM Code (A...

I want to flash my STM32 board with my USB serial port. And my STM32 board comes with an extended board which carries CH340. When I connected the board to my computer, I can see the device with the...

STM32 microcontrollers are capable to boot from different sources such as: User-Flash System-memory Embedded-SRAM. On the firmware side, does "boot from user Flash" means executing a cu...