STM32 MCUs Products

STM32H7A3 HAL_FLASH_Program() data and address alignment

Hello There,I'm working on an IAP application based on STM32H7A3 and have a query related to code alignment.Correct me if I'm wrong, as per my understanding HAL_FLASH_Program() in H7A3 writes a flash word (i,e., 16 Bytes) at a time. If so, then it mu...

Change STM32F103 to STM32F303

Hi ST experts,According to AN4228, we can migrate the MCU from F103 to F303 with minor changes development needed. Just wanted to understand more on the pin assignment between the parts, I take an example of STM32F103ZET6 vs STM32F303ZET6 with same p...

Guarantee write to timer preload-enabled PSC and ARR registers get applied together

Imagine that:I am using a timer in PWM mode.The timer is running.Interrupts are disabled.The timer is in downcounting mode.Pre-load is enabled for the PSC, ARR, and CCR registers.I need to update the PSC and (ARR or CCR (or both)).Imaging I am using ...

How to install and run STM32CubeProgrammer on MacOS 13.4 Ventura?

MacOS has evolved out from under the STM32CubeProgrammer for Mac installation process again. This issue was dealt with for an earlier version of macOS. Looking at this earlier posting, I was able to install the Programmer app from the command line, ...

When I using interrupts with registers, I always encounter with an error which is "Target is not responding, retrying".. (STM32F407 Discovery Board)

Hi,I have a discovery board(STM32F407VG) and I am trying to blink one of the onboard LEDs with the button(PA0) interrupt. Actually the code is uploading on the board but it gives an error on the console ("Target is not responding, retrying"). So ı ca...

STM32L051: Setting FLASH_PECR_OBL_LAUNCH hangs CPU until POR (even a hard reset will not exit this condition). Is this broken in silicon (in which case it belongs in the errata)?