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STM32L071, LSE crystal and Driver Level

Dear,On MCU STM32L071 we use LSE crystal (32,768 khz) with param:Cload = 12.5 pFCshunt = 1.2 pFESR = 50-70 kohmDrivel Level = 1uWand I am not sure how to set up LSEDRV bits in RCC register. I computed (according to AN2867) Gmcritical=2.06 uA/VDo I un...

JJRR by Senior
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I2C help please.

Hi everyoneI have a STM32F401RE Board and I am trying to get the I2C to work with an MPU6050. I have seen some examples but since I can not seem to find PB11 I realized I have to use PB3 as I2C2_SDA pin and PB10 as I2C2_SCL pin. The clock on this is ...

CMcC.1 by Associate II
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Resolved! A nother STM32G071 bare metal question on SPI

Hello,here is another bare metal question on STM32G071. I am trying to get the SPI to work. But it is not generating any clock signal or MOSI signal. Here is my init code trying to get it to work on GPIOB 6 to 8:void init_spi(SPI_TypeDef* SPI) { if(...

LPTIM repetition counter not work

Hi , I am trying to use lptim on NUCLEOL412RB.I want to use lptim repetition counter to fire a interrupt which period is 5 secs.My lptim clock source is 32k LSI.Here is my config:hlptim1.Instance = LPTIM1; hlptim1.Init.Clock.Source = LPTIM_CLOCKSOUR...

clee.10 by Associate III
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  • 5 replies
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