spi总线的模拟程序,可以实现单片机的spi传输

该设备是一款基于AVR mega16L单片机的电子书阅读器，它除具有传统的阅读电子资源功能外，还能通过PS2接口与PC键盘连接，使用普通PC键盘输入信息，进行文本录入；使用LCD12864液晶作为显示器，它还可以用VB专门为之编写的下载软件通过串口下载TXT格式的文本资源。电子书资源存储在AVR公司生产的AT45DB021B闪速存储器，它有2M存储空间，可满足一般用户需要，当然也可升级为大容量存储器。 该设备功能强大，将电子书阅读器发挥到了极致，能满足用户特殊需要。 -The device is a single chip based on the AVR mega16L e-book reader, which in addition to the traditional functions of reading electronic resources, but also through the PS2 interface to connect with the PC keyboard, use an ordinary PC keyboard input information, the text input use LCD12864 LCD as a display, it can be prepared by specialized VB download software through the serial port to download TXT format text resources. E-book resources are stored in the AVR produced AT45DB021B flash memory, it has 2M storage space to meet the needs of general users, of course, can also be upgraded to a large-capacity memory. The device is powerful and will play an eBook reader to the extreme, and to meet the special needs of users.

霓虹灯渐变控制器 适合用于装饰 采用单片机实现-neon graded controller optimized for decorative use MCU

89c2051Control LED(RGB).

（C语言）AT89S52做的时钟，带串口通讯，看门狗,注释详细，很适合初学者.-timer based on AT89S52

12位da转换程序，调试通过-12 da conversion process, debugging through

用LCD1602来显示日期和时间，源码程序-LCD1602 display with date and time, source program

开发磁传感器必须用到的文档，很有帮助，文档里有开发的思路。-The development of magnetic sensors to be used in the document, very useful documentation has developed ideas.

单片机直接驱动液晶显示的汇编程序，可供单片机爱好者参考。-Single-chip direct-drive LCD compilation of procedures for single-chip reference lovers.

单片机的内部定时器应用-SCM internal timer Application

次程序为单片机89S52系列直流电机驱动程序,具体解释见程序.-meeting procedures SCM 89S52 series DC motor drivers, specific explanation procedures.