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MCO          --   PA8

ʾḶ́
1ϵĬϵͳʱRCHSYS 16MHz
2ʹHXTALHXTALΪģʽƵΪ8MHz
3ϵͳʱΪPLLPLLʱԴΪHXTAL
4HXTAL CSS
5HXTAL CSSʱNMIжϴ

ע⣺
1HXTAL CSSϺϵͳʱԶлΪRCHSYSRCHķƵRCHDIVʾΪ2Ƶ
