P1口为数据口,控制线在P3部分端口,详见...C

环境测量系统 -Environment environment measurement system measurement system

步进电机系统系统硬件结构框图,步进电机系统系统硬件结构框图-Stepper motor system hardware block diagram of the system, stepping motor system, system hardware block diagram

AT89C2051驱动步进电机的电路和源码, 源码为C语言.-AT89C2051 stepper motor drive circuits and source code, source code for the C language.

这是一个基于P89c51单片机的声音与显示C51程序--A P89C51-SCM-based C51 program for sound and display.

公司打印机转接板的一段小代码 主要功能是从ARM上通过I2C读取数据，然后用并口控制打印机打印，使用单片机控制-companies printer adapter plate section of the main functions of the small code is adopted from ARM I2C read data, and then use the parallel port printer control, the use of SCM control

MAGIC2103-ARM7开发板中的UART源程序代码-MAGIC2103-ARM7 development board of the UART source code

spi 翻译资料 7.2 SPI总线 SD卡信道由指令和数据位（起始位和结束位）组成，SPI信道由字节定向。 每一个指令或数据块由8位的字节和CS标志构成。类似SD卡协议, SPI通讯由 指令、响应和数据组成。全部的主机与SD卡之间的通信由主机控制。主机执行 每一跟CS标志为低的总线-spi Translation 7.2 SPI bus data channel from the SD card command and data bit (start bit and end bit) component, SPI channel directed by byte. Every command or data block from 8-bit bytes and CS constitute signs. SD card similar to the agreement, SPI communications from command, response and data components. All of the host and the communications between the SD card by the host control. Each host implementation with CS low marks for bus

INA128/INA129精密低功耗仪表放大器的详细中文资料及经典电路例子-INA128/INA129 precision low-power instrumentation amplifier中文detailed information and examples of the classic circuit

好实用的好东东，快下呀！--Infrared ray communication design based on SCM.

用AVR单片机和RTL8019实现TCP/IP协议．支持ARP,PING,UDP,TCP,HTML网页显示等功能．-Using AVR MCU and RTL8019 realize TCP/IP protocol. Support for ARP, PING, UDP, TCP, HTML page functions.