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STM32C011 External 32K oscillator clarification

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Gaston
Senior

‎2024-09-04 03:53 AM

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

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SofLit
ST Employee

‎2024-09-04 04:31 AM - edited ‎2024-09-04 04:43 AM

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.

 

 

 

To give better visibility on the answered topics, please click on "Accept as Solution" on the reply which solved your issue or answered your question.

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SofLit
ST Employee

‎2024-09-04 04:31 AM - edited ‎2024-09-04 04:43 AM

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.

 

 

 

To give better visibility on the answered topics, please click on "Accept as Solution" on the reply which solved your issue or answered your question.
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