线性光耦合器的简单介绍。

SD卡驱动 SD_CARD_TIMEOUT 当一个SD卡的操作超出时限，将导致返回错误和该标记被置位 SD_CARD_EXIST 当卡槽内插入了合适的卡体，不管是什么卡，都会使该位被设置； SD_CARD_WRITE_PROTECT 当卡体的写保护开关被 LOCK 时，则该位被设置； SD_CARD_READY 当卡槽内的卡被正确识别，并可以随时访问时，则该位被设置； SD_CARD_DOOR_CLOSE 当卡槽的门（产品外壳上的挡板开关）关闭时，则该位被设置； SD_CARD_IS_SD 当卡槽内插入的是 SD 卡时，则该位被设置。 SD_CARD_IS_MMC 当卡槽内插入的是 MMC 卡时，则该位被设置； 注意：不要使用 0x80，免得和整数作逻辑运算时被误为负数。-err

单片机控制步进电机驱动系统电磁干扰及抑制 基于单片机的步进电机控制系统-Single-chip stepper motor driver control systems and electromagnetic interference suppression based on single-chip stepper motor control system

LV4137显示驱动,自己做的,比较简单,但很实用,MCU用的是Myson MTV512,Keil下编译-LV4137 display driver, to do their own relatively simple, but very practical, MCU using Myson MTV512, Keil compiler under

这是一个基于C语言的单片机的步进电机的程序。它是通过改变相位来调节电机的旋转速度-This is a microcontroller based on the C language, stepper motor programs. It is by changing the phase to regulate the motor rotation speed

keil C51 Byte事例-Byte stories

单片机内置USB调试固件程序,用于51单片机-MCU built-in USB debug firmware for the microcontroller 51. . .

The New Computerised Transit System (NCTS) is a European wide system, based upon electronic declaration and processing that was designed to replace the paper based CT system and to provide better management and control of both Community and Common Transit. It involves all EU Member States and the EFTA. The NCTS in each country is connected through a central domain Brussels, to all of the other countries. This provides links between some 3000 European customs offices and replaced the paper based system. In order to connect on-line with NCTS, traders need the facility to generate electronic Transit messages, and the facility to send/receive these messages to/from the IRL - NCTS. Connected traders receive electronic responses advising of key decisions during the procedure, such as acceptance of declaration, release of goods, notification of discharge. It is not be possible for Traders to interface directly with NCTS. They will simply be able to exchange defined structured m

LT_1B msp430开发板例子程序－TA_-LT_1B msp430开发板例子程序－TA_11

调度器内核，使用者只需要添加自己的任务即可，系统可以最多添加6个任务