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at89c51 的跑马灯程序. 把LED灯连接到端口0然后用烧录到单片机就行了.(This is an AT89C51 LED chaser program. Connect LEDs to port 1 and then use KEIL to compile the leds1.C into a .hex file then download t to your microcontroller.)

使用到蜂鸣器、Lcd1602、ZLG7289和串口，键盘实现加法器，控制LCD1602和蜂鸣器音乐播放。借助串口调试助手，可以用电脑发送字符，替代键盘，完成上述三种功能。(To use the buzzer, Lcd1602, ZLG7289 and serial port, a keyboard adder, and a buzzer control LCD1602 music player. With serial debugging assistant, a computer can send characters, instead of the keyboard, the above three functions.)

the file includes several examples of the code composer studio source for verification

刚才上传的频率计程序可能不太好，现在这个计数外部脉冲的程序，还是较好的，只是得自己从中截取出来(Just upload the program may not be a good frequency counter, and now this external pulse count procedures, or better, just get yourself out from the interception of)

说明：  DS1302时钟LCD1602显示（可以按键设置时钟）(DS1302 Clock LCD1602 Display (Clock can be set by key))

说明：  STM32F407驱动SPI屏幕，采用的是模拟SPI(STM32F407 drives SPI screen, using simulated SPI)

说明：  STM32F103单片机实现定时器触发DMA传输ADC测得的数据(STM32F103 Single Chip Microcomputer Implements Timer Triggering DMA to Transfer Data Measured by ADC)

STM32控制24位ADC实现模数转换功能，并利用OLED显示。(STM32 controls the 24 bit ADC to realize the analog-to-digital conversion function and displays it by OLED.)

XTW100编程器刷写软件，包括驱动程序和刷写软件。软件支持24/25系列flash，支持256M存储空间。(XTW100 programming tool, includes hardware driver for Windows system. Support 24/25 series flash, up to 256M.)

看门狗的一个已经编译过的程序，可以指正，灰常感谢(watch dog)