实现MODBUS RTU的完整代码，做MODBUS RTU网关的很实用。

利用C8051F020为控制单元，在74LS165与74LS595之间数据通信-C8051F020 control unit for use in the 74LS165 and the 74LS595 data communication between

这是一个用汇编，和vc编写的劲乐团游戏，需下载到51/52单片机上使用-This is a compilation of use, and the preparation of fresh vc Orchestra games, the need to download 51/52 on the use of SCM

支持键盘双击的C51程序，用于单片机辨别键盘双击-support the C51 procedures for identifying keyboard click MCU

With the program AD9854C.exe one can set and tune the frequency in CW-mode. For use as a receiver LO also IF can be given and the both possible receiving frequencies are printed on the screen. The level in Q-outputs can be varied by giving the wanted attenuation in dB. This function is done by controlling a 12b digital multiplier in the device. In this case the level decreases somewhat with increasing frequency as it does in DDS devices. Alternatively the inverse sinc correction can be chosen, in which case the output is flat and high. -With the program AD9854C.exe one can set and tune the frequency in CW-mode. For use as a receiver LO also IF can be given and the both possible receiving frequencies are printed on the screen. The level in Q-outputs can be varied by giving the wanted attenuation in dB. This function is done by controlling a 12b digital multiplier in the device. In this case the level decreases somewhat with increasing frequency as it does in DDS devices. Alternatively t

这是一个课程设计---数字电压表基于MCS51和AD0809的源码-This is a curriculum design- digital voltage meter and the AD0809 based on the source MCS51

用凌阳16位单片机测试输入波形的频率，动态刷新显示-Sunplus 16-bit single-chip microcomputer used to test the frequency of input waveform, dynamic refresh display

NecluesRTX RTOS的源码，是Neclues的早期版本，对一些小系统的开发仍旧很有用处。也是研究操作系统的一个很好的范例。通用电气的许多保护继电器仍旧采用此RTOS。 -NecluesRTX RTOS source code is Neclues an earlier version, for some small systems are still very useful. Research on the operating system is also a good example. GE

显示了键盘消息的顺序,所有键盘消息都被捕获和记录在数组里，并在WM_PAINT消息里被显示出来。-Shows the sequence of keyboard messages, all keyboard messages are captured and recorded in the array, and where in the WM_PAINT message to be displayed.

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单片机与计算机通讯源程序,含头文件,说明,本人亲自试过.-Single-chip communications and computer source code, including header files, annotations, I personally tried.