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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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AN4228 데이터시트(PDF) 9 Page - STMicroelectronics |
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AN4228 데이터시트(HTML) 9 Page - STMicroelectronics |
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9 / 90 page  DocID024110 Rev 5 9/90 AN4228 Boot mode compatibility 89 2 Boot mode compatibility The way to select the boot mode on the STM32F3 series differs from STM32F1 series. Instead of using two pins for this setting, STM32F3 series devices gets the nBOOT1 value from an option bit located in the User option bytes at 0x1FFFF800 memory address. Together with the BOOT0 pin, it selects the boot mode to the main Flash memory, the SRAM or to the System memory. Table 6 summarizes the different configurations available for selecting the Boot mode. Note: The BOOT1 value is the opposite of the nBOOT1 option bit. Table 6. Boot modes STM32F3/STM32F1 Boot mode selection Boot mode Aliasing BOOT1 BOOT0 x 0 Main Flash memory Main Flash memory is selected as boot space 0 1 System memory System memory is selected as boot space 1 1 Embedded SRAM Embedded SRAM is selected as boot space |
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