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oeliks
Graduate II
August 15, 2021
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What is value od HSE on nucleo L432KC?

  • August 15, 2021
  • 1 reply
  • 1169 views

Hi, what is the value of HSE on nucleo nano board stm32l432kc ?

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​https://www.st.com/en/evaluation-tools/nucleo-l432kc.html#overview

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Future : 24MHz crystall

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But when I initialize default settings in cubemx it sets HSE as 8 MHz.​

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Cant find value of HSE on board in board User Manual.​

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    Best answer by waclawek.jan

    There is no HSE crystal mounted on Nucleo-32, and also there's no OSC_OUT pin on the 'L432KC, so you cannot use a crystal for HSE with that chip.

    It still has OSC_IN, so you can use an external oscillator and HSE in Bypass mode. On the Nucleo-32, you would need to connect SB17 which connects the MCO output from the on-board STLink chip ('F103) to PA0 of the target i.e. 'L432KC, and the STLink's MCO output is 8MHz.

    JW

    1 reply

    W
    waclawek.janAnswer
    Super User
    August 15, 2021

    There is no HSE crystal mounted on Nucleo-32, and also there's no OSC_OUT pin on the 'L432KC, so you cannot use a crystal for HSE with that chip.

    It still has OSC_IN, so you can use an external oscillator and HSE in Bypass mode. On the Nucleo-32, you would need to connect SB17 which connects the MCO output from the on-board STLink chip ('F103) to PA0 of the target i.e. 'L432KC, and the STLink's MCO output is 8MHz.

    JW

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