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Gaston
Gaston
Associate III
September 4, 2024
Solved

STM32C011 External 32K oscillator clarification

  • September 4, 2024
  • 1 reply
  • 1404 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

mƎALLEm
mƎALLEmBest answer
ST 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.

 

 

 

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