20ma的电流环通信回路仍应用于一些远程通信的场合，本文为其实现过程。...

提供了研华公司的can口的参数说明，并且对can的函数库的函数进行了说明-Advantech has provided the company can explain the parameters of the mouth, and the library can function described

at89c5131 实现 mass storage 的源码.-AT89C5131 realize the source mass storage.

avrrice软件用于AVR单片机的JTAG调试.-avrrice software for AVR JTAG debugging.

条形电子屏的原理图，使用PROTEL99SE设计的。-strip electronic screen diagram, the use of PROTEL99SE design.

SPI是一个环形总线结构，由ss（cs）、sck、sdi、sdo构成，其时序其实很简单，主要是在sck的控制下，两个双向移位寄存器进行数据交换。 假设下面的8位寄存器装的是待发送的数据10101010，上升沿发送、下降沿接收、高位先发送。 那么第一个上升沿来的时候 数据将会是sdo=1；寄存器=0101010x。下降沿到来的时候，sdi上的电平将所存到寄存器中去，那么这时寄存器=0101010sdi，这样在8个时钟脉冲以后，两个寄存器的内容互相交换一次。这样就完成里一个spi时序。 -SPI bus is a ring structure, by ss (cs), sck, sdi, sdo composition, its timing is actually very simple, mainly under the control of the sck and two bi-directional shift register for data exchange. Assuming the following 8-bit register is loaded to send the data to be 10,101,010, rising to send, receive falling edge, high first sent. Well, the first rising edge to the time data will be sdo = 1 register = 0101010x. Falling edge comes, sdi on the level will be stored to the register, then register at this time = 0101010sdi, so 8 clock pulse later, the contents of two registers to exchange time. This will be completed in a spi timing.

8路数字电压表,有过流保护,过载保护-8-way digital voltage meter, has over-current protection, overload protection

时钟芯片ds1302 程序 源程序按版本号放在文件夹中。里面有在Protues中仿真的DSN文件。 打开MPLAB的MCP文件进行编译 将DSN文件载入Protues中 将生成的HEX导入到Protues中的16F84A中　-> RUN-Clock chip DS1302 procedures in accordance with the version number on the source folder. Protues there are in the DSN file in the simulation. Open the MPLAB compiler of the MCP file DSN file loading will be generated by HEX will Protues into Protues in 16F84A in-

GPL162001通用异步收发器模块演示程序

非常好的AVR单片机常见问题问答,对于开发人员适用. -Very good AVR Singlechip frequently asked questions, for the application developers.

Microchip Technology Inc. 的HCS300 是一款跳码编码 器，它是专为安防遥控无钥门禁（RKE）系统而设计 的。 HCS300使用KEELOQ跳码技术，并具有安全性高、 封装尺寸小和成本低等特性。 HCS300 是单向遥控无钥 门禁系统和访问控制系统最完美的解决方案。-The HCS300 from Microchip Technology Inc. is a code hopping encoder designed for secure Remote Keyless Entry (RKE) systems. The HCS300 utilizes the KEELOQ code hopping technology, incorporating high security, a small package outline and low cost. The HCS300 is a perfect solution for unidirectional remote keyless entry systems and access control systems.via any external connection. The EEPROM data is pro-grammable but read-protected. 2006 Microchip Technology Inc.