基于 STM32 UCOSII 一个消息队列信号量集软件定时器

嵌入式LINUX9系统应用开发详解中USB编程实例，-Embedded system application development LINUX9 explain in USB Programming examples

基于凌阳16位单片机和飞利浦D12的USB设备控制器的设计。-Sunplus 16-bit single-chip microcomputer-based Philips D12 and the USB device controller design.

Part IV In part II we discussed the conversion of binary numbers into decimal digits. It is sometimes useful to build circuits that use this method of representing decimal numbers, in which each decimal digit is represented using four bits. This scheme is known as the binary coded decimal (BCD) representation. As an example, the decimal value 59 is encoded in BCD form as 0101 1001. You are to design a circuit that adds two BCD digits. The inputs to the circuit are BCD numbers A and B, plus a carry-in, cin. The output should be a two-digit BCD sum S1S0. Note that the largest sum that needs to be handled by this circuit is S

pos机contactless源码，c语言-pos machine contactless source, c language

有关芯片8253/8255/8259的程序--Program about chip 8253/8255/8259.

桌面式三维打印机步进电机通过单片机进行驱动与控制的程序，主要是单片机端的程序，单片机为AVR.上位机为pc，可以用VC, 串口通信。

这是一个uC/OS-II For S3C44B0x的移植项目源代码．可以在uCOSV252.exe上运行，绝对可用-This is a uC/OS-II S3C44B0x For the migration project source code. UCOSV252.exe can run absolutely available

电路原理图 电路原理图 -Circuit schematic circuit schematic circuit schematic circuit schematic

钳入式开发的operation system 是追简单的example 钳入式开发的operation system 是追简单的example-clamp-in the development of the recovery operation system is a simple example of the clamp-in development of the operation system is a simple example to recover

如何第 c 程序接口与单片机键盘 （16F877 或 16F877A 是相同），还图书馆的数字小键盘