嵌入式系统基本驱动,对硬件寄存器进行初始化还有给设备分配I/O,申请DMA通道等-Embedded systems the basic drive, to initialize the hardware registers are allocated to the device I/O, applications such as DMA channels
作者倾力编写的简易计算器程序,可实现八位数的加减乘除功能。显示和键扫描部分是参考他人的著作。-Author effort to prepare a simple calculator program to realize the number of addition and subtraction, multiplication and division of eight features. Display and key scanning is a reference book to others.