arm裸板-阿里云

ARM裸板开发——简单编写实现“shell”功能

文章目录简单编写实现一个裸板环境下使用的“shell”功能程序，可以控制LED、beep等。main主程序设计主要函数：strcmp实现LED初始化及控制功能实现UART初始化及控制功能实现使用Makefile编译执行结果简单编写实现一个裸板环境下使用的“shell”功能程序，可以控制LED、bee...

ARM裸板开发——UART通信方式及使用（二）

查看芯片手册UART相关内容支持6路UART每一个UART内部都有一个接收缓冲区和发送缓冲区,大小为64字节，如果UART控制器工作在FIFO模式,缓冲区最大为64字节，如果UART控制器工作在非FIFO模式,缓冲区为1字节，此时此刻采用非FIFO模式！UART控制器内部集成了发送器而发送器内...

ARM裸板开发——UART通信方式及使用（一）

文章目录UART相关描述及概念计算机中常见的几种硬件通信方式UART串口的定义UART串口的三种工作方式UART协议相关概念ARM裸板操作UART串口进行数据输出查看芯片手册UART相关内容支持6路UARTUART控制器内部集成了发送器UART控制器内部还集成了接收器波特率配置P969UART控制器...

关于在arm裸板编程时使用printf问题的解决方法

在ARM裸板驱动编程中，是不允许程序直接调用C库程序的。为什么呢？因为此时kernel还没有被加载，所以在封装在kernel层的C库的API是用不了的，那怎么办？在开发过程中，printf的功能我不用再详细多说，就是用来debug调试程序的，...

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更新时间 2024-03-02 00:40:56

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