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Forum Posts

RTC and Alarm subsecond mask

Dear,I want to use an Alarm A in RTC mode. But have some trouble with it.1) I use LSI 37000 Hz2) for 1 Hz I selected PREDIV_S=7399 and PREDIV_A=4It means that my Granulanity is 1/(7399+1)When I want to wakeup for example in 100 ms.1) I read actual ...

JAN R by Associate III
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  • 3 replies
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Resolved! STM32 HAL I2C Driver - Wrong Slave Address

Hi, I have a board with STM32F501R8T6 and AT24C02 & DS1307 RTC are connected to I2C2. Earlier i had used custom I2C driver and interfaced them with a 8051 controller without any issues. Now since there is a need to change the I/0 pins config in ARM ...

PR.19 by Associate II
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  • 2 replies
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Ethernet driver in STM32Cube did not implement PTP interface

I'm a developer of the open source system zephyr, I need to implement PTP in Ethernet, but I found that stm32f4xx_hal_eth of STM32Cube did not implement PTP interface. Why not add this part of implementation,I request to implement the PTP interface i...

Jxudong by Associate
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  • 4 replies
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STM32F042: External clock and clock output

As described before (https://community.st.com/s/question/0D50X00009sWdDqSAK/stm32f042-bootloader-activation) I want to use 2 STM32F042 as CAN controller. So far I planned to use the internal HSI RC oscillator, but a +-5% tolerance seems critical for ...

0690X000006CHJZQA4.png 0690X000006CHJeQAO.png
harald by Associate III
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  • 3 replies
  • 0 kudos