External oscillator use in STM32F103xxx

[cgordon]

Posted on March 04, 2016 at 18:00

Can I use an external oscillator module to drive a clock directly into the 'oscillator in' pin?

ST documentation only shows crystal with load capacitors.

#stm32 #oscillator #-

[Tesla DeLorean]

Posted on March 04, 2016 at 19:03

Yes, it's the way all the DISCO boards work, the 8MHz clock is feed out the MCO pin and into the OSC_IN of the Target STM32

http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/CD00161566.pdf

''External clock source characteristics''

fHSE_ext up to 25 MHZ