STM32 MCUs Products

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Resolved! What is a half-DMA inside the NPU?

From the reference manue, I can find a term half-DMA, but this term is not well described, and I don't know what this half means, what is the difference bewteen a half-DMA and a normal DMA??? Is it just the size or the available target address is sma...

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Resolved! Bootloader and Read-while-write (RWW)

Hello,we are using a STM32F429.The bootloader is located in the first 64kB. The firmware in the remaining sectors.It erases the remaining sectors of the flash and writes the new firmware.Now, 3.6.5 Read-while-write (RWW) of the reference manual state...

h p by Associate III
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  • 2 replies
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HSE or LSE for my specific MCU application ?

Hi.I was searching for a crystal that meets the requiremets for the HSE of the MCU I´m using (STM32L4P5RGT6) at the beginning I tried to make the corresponding calcuations by myself but after researching I noticed that for some calculation I needed m...

Resolved! stm32f1 bootloader write memory command

Hello,i'm trying to implement firmware upgrade in my Windows application via USART for stm32f103 following AN3155. My issue is with the Write Command. More specifically:- if i send 1 byte of user data at time it works, it's just slow cause i have to ...

omaroski by Associate II
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  • 3 replies
  • 1 kudos

Timing of Hardware Semaphore

We're using a STM32H747IGT6 and using hardware semaphores to coordinate between the two cores.On the CM4 I've set up TIMER3 to run at full blast:  LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_TIM3); LL_TIM_SetPrescaler(TIM3, 0); // Count at sy...

BOOT0 on STM32U083

I have a custom board with an STM32U083KCU6 MCU - see schematics belowVBAT = +3.6VI have 2 boards:1. board: I flashed it via SWD but forgot to enable it in STM32CubeMX, which means that I'm not able to flash it again via SWD2. Board: This time, I rem...

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