Coupled Microstrip 耦合微带线

USB芯片CH375的库文件，使用库文件可以方便地开发有关USB的项目-USB chip CH375 library files, use the library file you can easily develop a project related to USB

Keil C51 89c52单片机挂接ds1302时钟芯片的驱动程序-Keil C51 articulated ds1302 89C52 microcontroller chip clock driver

画曲线头文件,最新制作可以进行画三角波,但可修改后画正玄矩形曲线-Painting curve header files, the latest production of the triangular wave can be painted, but can be modified after the painting is mysterious rectangular curve

键盘扫描程序，初学者可以拿过来借鉴一下，程序里有详细注释!-Keyboard scanner, beginners can take over from you, the program, there are detailed notes!

单片机通过SPI读写SD卡.使用5v系统操作3.3V的sd卡.很有借鉴价值-SCM SPI literacy through SD cards. 5v use of the system 3.3V sd card. Very valuable reference

矩阵键盘检测,用于初学单片机的人了解学习-Matrix keyboard detection for the beginner to learn to understand SCM

一个sonix的仿51单片机指令macro,在写汇编时超好用，可读性超强-Sonix 51 imitation of a single-chip instruction macro, in writing, when the compilation超好用, readability Superacid

Hk2000c传感器驱动程序，我们卖传感器公司给带的，正确性可以保证-Hk2000c sensor driver, and we sell companies to the zone sensor, can guarantee the correctness of

AVR Doper 简化的M8做的USB接口 的STK500V2-AVR Doper do M8 simplified USB interface STK500V2

本程序是用于通用同步和异步串行接收器和转发器（ＵＳＡＲＴ），使用中断方式异步接收和发送数据通信源的程序文件。-this procedure is common for serial synchronous and asynchronous receiver and transponder (USARTs), the use of asynchronous interrupt receive and transmit data communication source program files.