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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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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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.

Tips, Buy me a coffee, or three.. PayPal Venmo (See Profile) Up vote any posts that you find helpful, it shows what's working..

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