频率计，精度高，可以自动换档，一般单片机可以达到0…500k

串口程序源码，增强版！mega16系列的！-Serial program source, enhanced version! mega16 series!

CAN控制器的C源码-CAN controller C source

这是一个车用电机调速器的AVR单片机的整套C语言的源代码，实用工程。-This is a motor vehicle s AVR MCU package of C language source code, and practical engineering.

protelDXP汉化软件，通过该软件你可以汉化你的dxp，较为好用。-protelDXP Speaking of software, through the localization of your software, you can dxp, relatively easy to use.

介绍了多种C语言的常用算法，是c语言工作必备工具软件。-Introduce a variety of C language commonly used algorithm, is an indispensable tool for the work of c language software.

arm7 development tool, very very very very very very good-arm7 development tool. very very very very very very good

51单片机驱动LCD的子程序，LCD为定制的液晶，采用HT1621作为LCD驱动芯片-Single-chip LCD driver 51 of the subroutine, LCD for customized liquid crystal, used as the LCD driver IC HT1621

CH375 是一个USB总线的通用接口芯片，支持USB-HOST主机方式和USB-DEVICE/SLAVE设备方式。在本地端，CH375具有8位数据总线和读、写、片选控制线以及中断输出，可以方便地挂接到单片机/DSP/MCU/MPU等控制器的系统总线上。在USB主机方式下CH375还提供了串行通讯方式，通过串行输入、串行输出和中断输出与单片机/DSP/MCU/MPU 等相连接。 CH375 的USB 设备方式与CH372 芯片完全兼容，CH375 包含了CH372 的全部功能。本手册中没有提供CH375 在USB 设备方式下的说明，相关资料可以参考CH372 手册。 CH375的USB 主机方式支持常用的USB 全速设备，外部单片机可以通过CH375 按照相应的USB 协议与USB 设备通讯。CH375 还内置了处理Mass-Storage 海量存储设备的专用通讯协议的固件，外部单片机可以直接以扇区为基本单位读写常用的USB 存储设备（包括USB 硬盘/USB 闪存盘/U 盘）。-Document for CH372 usb style

MCS-51单片机有5个中断源，其中两个是由-INT0、-INT1引脚输入的外部中断源；另外三个是内部中断源即由T0、T1的溢出引起中断和串行口发送完一个字节或接收到一个字节数据引起中断。触发外部中断有两种方式，即下降沿引起中断或低电平引起中断。当编程TCON中的ITi（i=0、1）为1时，则引起触发的方式为边沿触发方式，反之(ITi=0)为低电平触发方式。每个中断源的中断请求能否得到响应要受两级“开关”的控制，即一个总“开关”-MCS-51 single-chip has five interrupt sources, two of which are by-INT0,-INT1 pin input external interrupt source the other three internal interrupt sources from the T0, T1 overflow caused by the disruption and serial port sending or receiving end of a byte to a byte of data caused by interruption. Triggered external interrupt has two modes, namely, falling edge or low-level disruption caused disruption caused. When programming TCON in ITi (i = 0,1) for the 1:00 has been the subject of a way to trigger the way to the edge of the trigger, on the contrary (ITi = 0) for low-level trigger mode. Each interrupt source interrupt request can be subject to levels in response to

本帮助文档是基于nRF24LE1的官方开发平台的SDK。里面有关于nRF24LE1详细的具体的子程序，可以直接应用。本人已经测试通过大部分。-This help document is based on nRF24LE1 the official development platform SDK. Inside details on nRF24LE1 specific subroutines that can be applied directly. I have been tested by the majority.