STM32 MCUs Products

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Cortex M7 CPI

Hello,i would like to roughly estimate the time the processor needs to execute some pieces of code.I know there is the DWT Cyclecounter, but the values it shows vary from one time to another at the same instruction. Also there is no information from ...

Resolved! Checking if first time run since flashing

My program writes to flash but needs to know if it has been run before since the chip was re-programmed. I've set up a section in the flash memory that gets written to by the programFLASH2 (rx) : ORIGIN = 0x08100000, LENGTH = 1024K .option : ...

PMath.4 by Senior III
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  • 4 replies
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STM32L4 Timer: External clock count both edges

Hello,I need to count the number of (positive and negative) edges in a signal within certain time period. For that I use a timer on STM32L452. The AN4776 says that External Clock Mode 1 is able to update the counter on both edges (for the price of no...

PKulh by Associate II
  • 2657 Views
  • 20 replies
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STM32L073 : Power on reset

I just saw Power on reset feature in Pic (https://microchipdeveloper.com/8bit:por). It can hold mcu a little bit until the power is stable, before starting the hardware initialization. I would like to know if this feature is avalilable on stm32.I ha...

SRodb by Associate
  • 417 Views
  • 1 replies
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Resolved! H743 using RAM_D1 can not handle std:string greater than 15

HelloI've been working on a project on an nucleo F411RE and everythings been going fine.I then had to port the project to nucleo H743ZI.As i am using the DMA i had to change the ram from DTCRAM to RAM_D1.Before the change to RAM_D1 i could have strin...

NMunt by Associate II
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  • 9 replies
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Hard reset Interrupt issue in STM32F103RB

I am testing EXTI interrupts on STM32F103 board. The device works properly when soft reset is given. Interrupts are triggered properly. But when I give hard rest to the device(Like power off & power on) , it fails to initialize STM32. Maybe it gets a...

sne_123 by Associate III
  • 275 Views
  • 0 replies
  • 0 kudos