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AN3307 数据表(PDF) 2 Page - STMicroelectronics

部件名 AN3307
功能描述  Guidelines for obtaining IEC 60335 Class B certification for any STM32 application
PDF  37 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

AN3307 数据表(HTML) 2 Page - STMicroelectronics

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Contents
AN3307
2/37
Doc ID 18186 Rev 4
Contents
1
Package variation overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2
Main differences between STM32F packages
and their possible modifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3
Compliance with IEC and VDE standards . . . . . . . . . . . . . . . . . . . . . . . 10
3.1
Generic tests included in the STM32Fxxx firmware library . . . . . . . . . . . 11
3.2
Application-specific tests not included in the ST firmware library . . . . . . 13
4
Class B software package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.1
Basic software principles used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.1.1
Fail Safe mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.1.2
Class B variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.1.3
Class B flow control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.2
Package organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.2.1
Projects included in the package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.2.2
Tool-specific integration of the library . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.2.3
Application demo example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.3
Package configuration and debugging . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.3.1
Configuration control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.3.2
Verbose diagnostic mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.3.3
Debugging the package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5
Class B solution structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.1
Integrating the software into the user application . . . . . . . . . . . . . . . . . . . 21
5.2
Description of startup self tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.2.1
CPU startup self-test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.2.2
Watch dog startup self-test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.2.3
Flash complete checksum self-test . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.2.4
Full RAM March C-/X self-test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.2.5
Clock startup self-test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5.3
Periodic runtime self-test initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.4
Description of periodic runtime self-tests . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.4.1
Runtime self-test structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30



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