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HSI vs. HSE crystals

Question asked by fox.matthew on Aug 11, 2013
Latest reply on Aug 12, 2013 by fox.matthew
I've been looking at some board designs that I've found online, and it looks like some people include an external 8 MHz crystal in a resonator to run their clock.  I'm wondering what the benefit of using this external 8 MHz over using the internal 8 MHz crystal in the HSI.  Are there any benefits?  Thanks for the help in advance.