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September 4, 2024
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STM32C011 External 32K oscillator clarification

  • September 4, 2024
  • 1 reply
  • 873 views

How can add an external LSE oscillator to the STM32C011F4U6TR device as described in the datasheet (page 53)?

Gaston_0-1725446869018.png

I'm not able to find OSC32_IN and OSC32_OUT in the pin assignment. Instead, I've found OSC32_EN (pin1 of STM32C011F4U6TR) but I'm not understand what it is for.

Could anyone clarify this?

Gaston

    This topic has been closed for replies.
    Best answer by mƎALLEm

    Hello,

    According to the datasheet, LSE Crystal needs to be connected on OSCX_IN OSCX_OUT : PC14/PC15 which are shared with HSE

    SofLit_0-1725449258508.png

    SofLit_1-1725449388449.png

    Regarding the figure 15 you shared, it is generic to all STM32. 

    Update: X in OSCX means either 32 from OSC32 or simply OSC for for HSE as they are sharing the same pins.

     

     

     

    1 reply

    mƎALLEmAnswer
    Technical Moderator
    September 4, 2024

    Hello,

    According to the datasheet, LSE Crystal needs to be connected on OSCX_IN OSCX_OUT : PC14/PC15 which are shared with HSE

    SofLit_0-1725449258508.png

    SofLit_1-1725449388449.png

    Regarding the figure 15 you shared, it is generic to all STM32. 

    Update: X in OSCX means either 32 from OSC32 or simply OSC for for HSE as they are sharing the same pins.