- 关于STM32单片机一个库函数问题求解答
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什么时候需要调用SYS.H 和STM32f10x.h这两个文件 萌新求解 中文手册如果有 可以告诉我地方我自己去查
STM32f10x.h是芯片寄存器头文件，就像51单片机的reg51.H。基本上所有涉及到控制单片机的c程序都要包含。
至于SYS.H 我猜你用的是原子的库，里边就4条函数看你需要。
void WFI_SET(void); //执行WFI指令
void INTX_DISABLE(void);//关闭所有中断
void INTX_ENABLE(void); //开启所有中断
void MSR_MSP(u32 addr); //设置堆栈地址
里边还有IO口操作宏定义，如果你想像51一样操作io口就用吧。
一般情况这两个头文件都会包含。
STM32f10x.h就是定义的一些宏定义，寄存器名称什么的，库函数的说明里面一般都有，下面是我截下的注解说明：
- @file stm32f10x.h
- @author MCD Application Team
- @version V3.5.0
- @date 11-March-2011
- @brief CMSIS Cortex-M3 Device Peripheral Access Layer Header File.
- This file contains all the peripheral register's definitions, bits
- definitions and memory mapping for STM32F10x Connectivity line,
- High density, High density value line, Medium density,
- Medium density Value line, Low density, Low density Value line
- and XL-density devices. *
- The file is the unique include file that the application programmer
- is using in the C source code, usually in main.c. This file contains:
- - Configuration section that allows to select:
- - The device used in the target application
- - To use or not the peripheral’s drivers in application code(i.e.
- code will be based on direct access to peripheral’s registers
- rather than drivers API), this option is controlled by
- "#define USE_STDPERIPH_DRIVER"
- - To change few application-specific parameters such as the HSE
- crystal frequency
- - Data structures and the address mapping for all peripherals
- - Peripheral's registers declarations and bits definition
- - Macros to access peripheral’s registers hardware
你编译后在用到这两个头文件的C文件中找到.h的源文件，看这两个头文件中定义了哪些变量及声明了哪些函数，看你用到了没有，没有的话注释掉就好了，第一个应该是工程启动文件，第二个应该是用的开发库定义的文件。