做的一个简易的计算器，用数码管显示的，程序经过测试是完全好使的，也可以用protues进行方针，硬件电路设计很简单！

《嵌入式固件开发》一书的源码--Source code for the book of "Embedded Module Development".

金星车载TV PAL制频头UV7305BDI控制源代码--Source code for JinXing on-car TV PAL head UV7305BDI controller.

E05-24LE1系列模块附送资料.zip

单片机控制的使用MAX7318的一种IO口扩展程序单片机控制的使用MAX7318的一种IO口扩展程序-MAX7318 single-chip microcomputer to control the use of an IO port extension MAX7318 single-chip control of the use of an IO port extension

应用背景Logical separation of program and data memory All 8051 devices have specific memory organization, they have separate address spaces for Program (ROM) and Data (RAM) Memory. This logical separation of Memory is useful because it allows the Data Memory to be accessed by 8-bit addresses, which can obviously be more quickly stored and manipulated by an 8-bit CPU. Of course, the l6-bit Data Memory addresses can still be generated with the DPTR register. Program Memory Program Memory can only be read, not written to. The address space for 8051 core is 16- bit, so there is maximum of 64K bytes of Program Memory. Up to 4 Kbytes of Program Memory can be on chip, internal Program Memory of the 8051 core. For access to external Program Memory is used signal PSEN (Program Store Enable). Data Memory Data Memory is on a separate address space than Program Memory. For external Data Memo

基于51单片机开发。资料的详细功能、包含内容说明-51 MCU-based development. For more information on features, including the content description

 本文附带一份小项目的源代码，它超越了串口助手，给人一种耳目一新的感觉。亮点如下： 1. 它解决了串口关闭时出现线程出现死锁，软件关闭后，进程在后台没有关闭问题（所谓的线程死锁），可以直接用到开发的项目上。 请点击左侧文件开始预览 ！预览只提供20%的代码片段，完整代码需下载后查看 加载中 侵权举报

这个例子描述了如何配置和使用GPIOs通过STM32F1xxHAL_API。PD.07, PD.13, PD.03 and PD.04 IOs (configured in output pushpull mode)toggle in a forever loop.On STM3210C-EVAL RevC board these IOs are connected to LED1, LED2, LED3 and LED4.非常适合使用STM32做跨平台编程。对初学STM32的开发人员了解GPIO的配置很有帮助。

嵌入式系统软件开发指南，uClinux到思创S3C44B0黄金开发板的移植。-Embedded System Software Development Guide, uClinux to think Chong S3C44B0 gold development board transplant.

集中探讨C指针的文章--我眼中的指针,可以参考。-focused on the C pointer articles-- I see as a pointer, they can refer to.