8051上的CRC8校验 A CCITT

2262和2272的发射接收源码，很简单-2262 and 2272 of the transmitting and receiving source code is very simple

1. 本程序使用一个定时器和任意 2 个 I/O 口模拟一个串行口。 2. 1位起始位，8位数据位，1位停止位。发数据位时先发低位。 3. 支持半双工通讯。收、发波特率相同。 4. 应把定时器中断优先级设置为最高级。 5. 本程序每接收一个字节后就把它放到一个队列缓冲区中(也可使用环行缓冲区), 待缓冲区满后，将缓冲区中的内容原样发回。这是为了测试多字节连续收发的 能力和简化程序。实际应用中应防止缓冲区溢出。 6. 由接收转换到发送时要先调用 soft_send_enable ()； 由发送转换到接收时要先调用 soft_receive_enable ()。 7. 发送最后一个字节后如果要立刻转为接收，必须等待最后一个字节后发送完毕 while ( rs_f_TI == 0) // 等待最后一个字节发送完毕-err

步进电机驱动，简单使用，只需稍加修改，即可用于你想到的系统-Stepper motor-driven, simple to use, just a little modification, you can think of for your system

24c16的C51源代码,在KEIL C51上已调试通过-24c16 source of C51, C51 has KEIL through debugging

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

单片机at89c5x资料，绝对超级，是很好的，讲的非常详细！-Singlechip at89c5x information, absolutely super, is a very good, very detailed talk about!

本文章介绍了一种AD值的线性化方法。可以应用于单片机系统的设计开发当中。在系统的硬件设计方法上，使用温度补偿的方法，使得AD转换值可实现线性化，从而可以减少了单片机软件开发当中进行非线性数据的线性化处理。-This article introduces a AD value of the linear method. Can be applied to the design of single-chip microcomputer system development. The system

通用的餐饮收费系统:其主要技术是通过计算机串口与IC卡相关设备进行数据交互.-Common food and beverage charges system: Its main technology is the computer serial port and IC card relevant equipment data exchange.

流水灯：灯从最低位P0.0开始向高位依次点亮-Water lights: lights from the lowest to the highest followed by P0.0 lit

JUPITER演示程序，lcd显示图片。-JUPITER demo program, lcd display picture.