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AN3155 数据表(PDF) 31 Page - STMicroelectronics

部件名 AN3155
功能描述  USART protocol used in the STM32 bootloader
PDF  37 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

AN3155 数据表(HTML) 31 Page - STMicroelectronics

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AN3155
Bootloader command set
Figure 21. Write Unprotect command: device side
1. WPUN = Write Unprotect.
3.11
Readout Protect command
The Readout Protect command is used to enable the Flash memory read protection. When
the bootloader receives the Readout Protect command, it transmits the ACK byte to the
host. After the transmission of the ACK byte, the bootloader enables the read protection for
the Flash memory.
At the end of the Readout Protect command, the bootloader transmits the ACK byte and
generates a system Reset to take into account the new configuration of the option byte.



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