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Advantages of using HSE over HSI

Question asked by carvalhais.andre on Mar 30, 2015
Latest reply on Nov 3, 2015 by wolff.roger
I'm developing a project in wich main clock accuracy isn't particurlaly important. I do need to measure time acurately, but I can use the RTC with an external 32.768 KHz crystal for that.

I was wondering about the possibility of using the internal HSI for this particular project, but I am a little concerned about what would be the disadvantages (specially since it seems everyone uses a crystal). Accurancy is an obvious one, but as I said, I'm not concerned about that.

What about other disadvantages, are there any? In my particular case I'm interested in power consumption as well. Thanks in advcance, respectfully,

Andrew.

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