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STM32L152V8T6 开发手册 - ST Microelectronics（意法半导体）
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ST Microelectronics（意法半导体）
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微控制器
封装:
LQFP-100
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STMICROELECTRONICS STM32L152V8T6 微控制器, 32位, ARM 皮质-M3, 32 MHz, 64 KB, 10 KB, 100 引脚, LQFP
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STM32L152V8T6数据手册
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January 2012 Doc ID 18200 Rev 2 1/20
AN3309
Application note
Clock configuration tool
for STM32L1xx microcontrollers
Introduction
This application note presents the clock system configuration tool for the STM32L1xx
microcontroller family.
This purpose of this tool is to help user configure the microcontroller clocks, taking into
consideration the product parameters (power supply, product voltage range, the Flash
access mode...).
The configuration tool is implemented in the “STM32L1xx_Clock_Configuration_VX.Y.Z.xls”
file which is supplied with this application note and can be downloaded from www.st.com.
It makes it easy to take care of all the following system aspects and interdependencies:
● Configure the system clock, HCLK source and output frequency.
● Configure the Core voltage range (V
CORE
).
● Configure the Flash latency (number of wait states depending on the HCLK frequency).
● Set the PCLK1, PCLK2 and TIMCLK (timer clocks) frequencies.
● Generate a ready-to-use system_stm32l1xx.c file with all the above settings
(STM32L15x CMSIS Cortex-M3 Device Peripheral Access Layer System Source File).
Note: 1 The STM32L1xx_Clock_Configuration_VX.Y.Z.xls is referred to as “Clock tool” throughout
this document.
2 Before using the Clock tool, it is essential to read the STM32L microcontroller reference
manual (RM0038). This application note is not a substitute for the reference manual.
www.st.com
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