???о?HK32F03X???8M???????72M???????
???о?HK32F03X??в??????Cortex-M0???????????в?????????????????HSI?????????????8M????????????????????ǹ???S**32F03X?????????????????????HSI/2???????4M????????????????????????16????PLL?????????64MHz?????????????????????????????????????????72MHz??????????????????HK32F03X????????????????????72M???????????HK32F0X??е?????????
??????????????HK32F0X??е?????????
?1 ????????
?????????????????????????????????56MHz???????????????????????????4?????14MHz????????????ADC??????????????56M??????7?????8MHz???HSI????????72M???????????????????????????PCB???壬????BOM??????????????????????????????HK32F03X??????????RCC_CFGR4??????PPSSλ???HSE??HIS????????????????????????λ?1????????HSI?????????????????
?2 ???????
?3 CFGR4 ???
??????MDK5(Keil5.0????汾??????????????????
??????????????HK32F0X??е?????????
??????????????????????????
?????????????????void SystemInit (void) ????????????????????????startup_stm32f0xx.s??????????????????????????
?????????????SetSysClock??????????????????????????????Main?????????????????????
????ζ???????RCC_CFGR4???PPSSλ
?????????system_stm32f0xx.c ??????????
0x400210e8 ????????? 0x00000100??λ8?1 PPSSλ?1
????????SetSysClock????
??????????д??? ?????????
????????RCC_CFGR_PLLSRC ????????????RCC_CFGR4.PPSS
HSI?????????????????????
????????????MCU???????????????????????????????????????????????
??????????У????????????????????о?HK32MCU????Ч??????о??????????????????????????????????????????
????zzy ?????????2022-05-23
