STM32 MCUs Products

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Resolved! PWM capture using Rising, falling EXTI

Hi all,I am capturing 10 pwm pulses from proximity sensors by making the all pwm pins in rising falling interrupt mode.PWM is captured by a timer at every 100us interrupt.some times pulses are missing, I don't know why this is happening.I am sharing ...

gladdy by Associate II
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  • 10 replies
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How to use Rotary Encoder effectively in external interrupt

Hi there this is Akash, I am doing a project on STM32F100RB Discovery Kit, in this project I am controlling stepper motor with some parameter given by the user using rotary encoder, basically I want to run the motor in the while loop, and through ext...

Akash R by Associate II
  • 1200 Views
  • 4 replies
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Is there a limit on how many bytes to send over I2C from the slave? The MCU is STM32F469NI, and I have programed the board to act as an slave, it works fine if amount of data sent from slave is less than 100 bytes, but data gets corrupted if sent more.

Is there a limit on how many bytes to send over I2C from the slave?The MCU in question is STM32F469NI, and I have programed the board to act as an slave using HAL, it works fine if amount of data sent from slave is less than 100, but gets corrupted f...

fzx by Associate II
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  • 4 replies
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Programing STM32F030 faild: No device at targed

Hi, I designed my first own board with a STM32F030F4P6 on it. Additionally a got me a ST-Link V2 for programing and debugging. As IDEIuse CubeMXIDE. I already successfully programed some Nucleos with it. With my own board I don't get a connection to ...

Mister232 by Associate II
  • 1017 Views
  • 3 replies
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STM32H7 lowest possible standby current, any examples?

HI!I am currently trying to minimise the standby consumption of a STM32H7 down to theabsolute minimum. Only the change of one Pin (PA0) is selected as wakeup event. No need for backup ram, Pin drivers, RTC nor anything else. The MCU shall only switch...

Microman by Associate III
  • 481 Views
  • 2 replies
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Resolved! How to read STM32H7 SRAM ECC status?

I want to periodically check the state of the RAM ECC detection in my firmware on a STM32H753.The ECC mechanism is well described in the Reference Manual for the Flash but not very well (in my opinion) for the RAM.I've seen that there are dedicated i...

Gpeti by Senior II
  • 1443 Views
  • 8 replies
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STM32L010K4: can't change USART2SEL-bits in RCC->CCIPR

Hi,after encountering the problem with my non-CMSIS-based project, I tried to just set up a simple project in CubeMX, just activating the USART2 and selecting HSI16 as clk-source for the USART.Starting the debugger shows, as already seen in my origin...

GernotM by Associate II
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  • 6 replies
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Resolved! The Purpose of external crystal

Hello everyone, I have a question related to MCU oscillator. Honestly, i usually design MCU with external crystal , by belief that it is surely always better internal oscillator. Even i believed that if MCU isn't run with external crystal will make s...