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FAQ0093

更新时间： 2024-11-13 14:57:39

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雅特力 - ARTERY		/
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描述
AT32 工程项目在采用非8M 外部晶振时，如何在BSP 中进行修改？

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FAQ0093 数据手册

How to Modify BSP Clock Configuration?

FAQ0093

Frequently Asked Questions

How to Modify BSP Clock Configuration?

Questions:

How to modify BSP clock configuration when a non-8MHz is used in AT32?

Answer：

BSP demo and evaluation board are built upon external 8 MHz crystal oscillator. In actual application, if a non-8 MHz

is used, there is a need to modify BSP clock configuration to ensure accurate and reliable clock frequency.

AT32_New_Clock_Configuration tool is specifically designed for this purpose, to generate the use-defined BSP

system clock code file, which is available in ARTERY official website. As marked in red below, various parameters

can be configured, including external clock source, frequency division, frequency multiplication, clock source. Finish

these configurations and generate codes, without the need of code modification.

Users only need to use clock code (at32f4xx_clock.c/ at32f4xx_clock.h/ at32f4xx_conf.h) generated with this new

configuration tool to replace the original one in BSP mode. Then call “ystem_clock_config” in main.

For full details on how to use AT32_New_Clock_Configuration, please refer to the following documents available in

ARTERY official website.

AT32 series

Application Note

AN0082

AN0084

AN0116

AN0117

AT32F403A/407 clock configuration

AT32F435/437 clock configuration

AT32F421 clock configuration

AT32F415 clock configuration

AT32F413 clock configuration

AT32F425 clock configuration

AN0118

AN0121

Type: MCUs

Applicable products: AT32 Family

Main function: CRM

Other function: None

2022.2.23

Rev.2.0.0

12 3

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