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STM32F030& 051青风全套教程和程序例程,有兴趣的人可以下载,便于学习交流。
代码片段和文件信息
/**
******************************************************************************
* @file system_stm32f0xx.c
* @author MCD Application Team
* @version V1.0.0
* @date 23-March-2012
* @brief CMSIS Cortex-M0 Device Peripheral Access layer System Source File.
* This file contains the system clock configuration for STM32F0xx devices
* and is generated by the clock configuration tool
* STM32F0xx_Clock_Configuration_V1.0.0.xls
*
* 1. This file provides two functions and one global variable to be called from
* user application:
* - SystemInit(): Setups the system clock (System clock source PLL Multiplier
* and Divider factors AHB/APBx prescalers and Flash settings)
* depending on the configuration made in the clock xls tool.
* This function is called at startup just after reset and
* before branch to main program. This call is made inside
* the “startup_stm32f0xx.s“ file.
*
* - SystemCoreClock variable: Contains the core clock (HCLK) it can be used
* by the user application to setup the SysTick
* timer or configure other parameters.
*
* - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must
* be called whenever the core clock is changed
* during program execution.
*
* 2. After each device reset the HSI (8 MHz Range) is used as system clock source.
* Then SystemInit() function is called in “startup_stm32f0xx.s“ file to
* configure the system clock before to branch to main program.
*
* 3. If the system clock source selected by user fails to startup the SystemInit()
* function will do nothing and HSI still used as system clock source. User can
* add some code to deal with this issue inside the SetSysClock() function.
*
* 4. The default value of HSE crystal is set to 8MHz refer to “HSE_VALUE“ define
* in “stm32f0xx.h“ file. When HSE is used as system clock source directly or
* through PLL and you are using different crystal you have to adapt the HSE
* value to your own configuration.
*
* 5. This file configures the system clock as follows:
*=============================================================================
* System Clock Configuration
*=============================================================================
* System Clock source | PLL(HSE)
*-----------------------------------------------------------------------------
* SYSCLK | 48000000 Hz
*-----------------------------------------------------------------------------
* HCLK | 48000000 Hz
*-----------------
属性 大小 日期 时间 名称
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I.A.... 2042716 2018-10-26 09:19 STM32F030& 051青风全套教程和程序例程\dog.rar
I.A.... 1320725 2018-10-26 09:19 STM32F030& 051青风全套教程和程序例程\exitkey.rar
I.A.... 1060519 2018-10-26 09:18 STM32F030& 051青风全套教程和程序例程\flash.rar
I.A.... 1705095 2018-10-26 09:18 STM32F030& 051青风全套教程和程序例程\gui.rar
I.A.... 412199 2018-10-26 09:18 STM32F030& 051青风全套教程和程序例程\lcd.rar
I.A.... 2468286 2018-10-26 09:18 STM32F030& 051青风全套教程和程序例程\led.rar
I.A.... 2364963 2018-10-26 09:19 STM32F030& 051青风全套教程和程序例程\net.rar
I.A.... 161200 2018-10-26 09:17 STM32F030& 051青风全套教程和程序例程\pwm.rar
I.A.... 1729179 2018-10-26 09:18 STM32F030& 051青风全套教程和程序例程\rtc.rar
I.A.... 923661 2018-10-26 09:17 STM32F030& 051青风全套教程和程序例程\scankey.rar
I.A.... 1958574 2018-10-26 09:18 STM32F030& 051青风全套教程和程序例程\sd.rar
I.A.... 1338001 2018-10-26 09:13 STM32F030& 051青风全套教程和程序例程\STM32F030串口.zip
I.A.... 1016789 2018-10-26 09:18 STM32F030& 051青风全套教程和程序例程\system.rar
I.A.... 13288 2018-10-26 09:12 STM32F030& 051青风全套教程和程序例程\system_stm32f0xx.c
I.A.... 1463732 2018-10-26 09:19 STM32F030& 051青风全套教程和程序例程\tim.rar
I.A.... 946809 2018-10-26 09:18 STM32F030& 051青风全套教程和程序例程\uart.rar
I.A.... 1350210 2018-10-26 09:19 STM32F030& 051青风全套教程和程序例程\ucos.rar
目录 0 2018-10-26 09:24 STM32F030& 051青风全套教程和程序例程
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