is there external oscillator in the nucleo-l432kc board. the website says it is there, but i am not able to enable HSE mode.

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Best answer by Tesla DeLorean

Solder Bridge, basically a link option using solder instead of a push on pin arrangement.

Use SB17 as a search term in the User Manual / Schematic so you get the details / description.

No it just connects and existing signal. Some people don't want to waste a pin on a clock due to the low pin count already.

Super User

STLink outputs 8MHz on MCO, this can be used as external clock input to target mcu.

Have you connected SB17 and set HSEBYP and HSEON in RCC_CR?

Read the Nucleo-32 User Manual, and the RCC chapter in Reference Manual for 'L43x.

JW

Associate

hi, thanks for the reply. i am quite new to stm32. can you please explain what is meant by connecting SB17.

I would also like to know if taking clock from stlink would affect its debugging capabilities?

Guru

Solder Bridge, basically a link option using solder instead of a push on pin arrangement.

Use SB17 as a search term in the User Manual / Schematic so you get the details / description.

No it just connects and existing signal. Some people don't want to waste a pin on a clock due to the low pin count already.

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