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Using STM32F105RBT6 with a 4-pin oscillator?

JBosi
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I'm using a STM32F105RBT6 in LQFP64 package in a project. The datasheet suggests using a crystal or resonator. I want to use a 4-pin oscillator that has a single output pin. Is this possible and if so where do I connect it?

Thanks.

4 REPLIES 4

Use OSC_IN pin and select HSE BYPASS mode.

See Nucleo-F1 schematic, where it passes in 8 MHz source from ST-LINK.​

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JBosi
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How do I set HSE BYPASS mode?

When you configure/enable the clock input. Try RCC register descriptions in Reference Manual.​

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