单片机USB接口驱动,适用于AT89C51SND1C

RHM500读IC卡驱动,使用与C51系列，能读出多种IC卡芯片-THIE IS A PROGRAM OF RHM500 READ IC MODEL DRVER.IT CAN READ A IC LIKE M1S50/M1S70 AND SO ON.YOU CAN TRY IT ON C51 OR OTHERS.THAT IS ALL!

初学单片机的一个实例运用，以at89c2051为例，用c语言编写的时钟程序。程序采用了两级中断，具有时钟及秒表功能。-beginners MCU use an example to at89c2051 example, the language used c clock procedures. Adoption of the two suspended, with the clock and stopwatch functions.

TLC5618 D/A 输出-Programmable DoubleChannel12-bit DACTLC5618in D/A output

飞思卡尔S12 系列单片机系统硬件设计，详细介绍了该单片机的硬件使用，为全中文，MC9S12DG128B 有16路AD 转换，精度最高可设置为10 位；有8 路8 位PWM 并可两两级联为16 位精度PWM，特别适合用于控制多电机系统。它的串行通信端口也非常丰富，有2 路SCI，2 路SPI 此外还有IIC，CAN总线等端口，并且采用了引角复用功能，使得这些功能引角也可设置为普通的IO 端口使用。此外 它内部还集成了完整的模糊逻辑指令，可大大简化我们的程序设计。-Freescale s S12 family of single-chip microcomputer system hardware design, detail the use of single-chip hardware for the whole Chinese, MC9S12DG128B 16 Road AD conversion, the highest precision can be set to 10 are 8 and 8 PWM 22 Alliance for the 16-bit precision PWM, is particularly suitable for controlling multi-motor system. Its serial communication ports are also very rich 2-way SCI, 2 road SPI in addition to IIC, CAN bus, such as ports, and using the primers angle multiplexing function, so that these functions can also be cited angle is set to normal IO port to use. In addition, it also integrates the internal integrity of the fuzzy logic instructions, can greatly simplify the design of our procedures.

AT89S51资料，中文版的，很利于大家学习-AT89S51 information, the Chinese version, it is beneficial to them to learn from

用于C51上的modbus协议，经测试可运行，但还不完善-C51 for the Modbus protocol, the tests will be run, but still not perfect

本方案要求利用凌阳科技公司的SPLC501A液晶模组作为显示模块，凌阳16位单片机SPCE061A 作为主控芯片，充分利用SPCE061A精简开发板（简称61板）上面的三个按键，完成一个简易的数 字系统――数字电子钟。 -The program requires the use of Sunplus Technology, Inc. SPLC501A LCD module as the display module, Sunplus 16-bit single-chip microcomputer as the master chip SPCE061A make full use of SPCE061A streamline development board (hereinafter referred to 61 plates) above the three buttons to complete a simple of digital systems- digital electronic clock.

profibus 的官方文件，朋友给的，朋友可是花钱买来的。-PROFIBUS_DP SPECIFICATION

在C51下编写的频率计函数，可以对测得输入信号的频率-Prepared in the C51 Cymometer function, can be measured by the frequency of the input signal

UT58A数字万用表电原理图，格式为图片，请注意-UT58A digital multimeter electrical schematic diagram, the format for the picture, please note that