예전에도 넣어줬던가 모르겠네
2.3.8 Boot modes At startup, boot pins are used to select one of three boot options: • Boot from user Flash • Boot from system memory • Boot from embedded SRAM The bootloader is located in the system memory. It is used to reprogram the flash memory by using USART1. For further details, refer to AN2606, available on www.st.com. |
[링크 https://www.st.com/resource/en/datasheet/cd00161566.pdf]
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