LCD应用系统程序，里面有proteus仿真程序。

这是DSP2407的RAM测试程序,含全部源码,调试通过,可运行.-This is the DSP2407 the RAM test procedures, including all source code, debugging is passed, can be run.

lcd 液晶屏驱动-LCD screen driver

通信方式是485方式。通过485来控制一组灯的开关。-485 are way communication. Through 485 to control a group of light switches.

本人非常支持单片机设计DIY 在这里再次献出小弟的一点心意,下面是使用AT89S52驱动74HC4015,实现1选择8的数据通道切换器,可以在不8个通道出加上不同大小的电阻.可以用来单声道音量的大小控制. 下面作品图是小弟设计的廉价的 基于单片机的毕业设计 ,它还使用了无线接收发送模块,通过使用手上的遥控器能控制音量的大小,还加了一块HCF4052用于输入音道的选择,支持思路音频信号的输入,一路音频信号的输出: -I very much support the single-chip design DIY here again gave a little boy s mind is to use the following AT89S52 drive 74HC4015, to achieve a choice of 8 switches the data channel, you can not add the 8-channel resistance of different sizes. Can used to the size of mono volume control. The following work plan is designed小弟cheap graduation based on single-chip design, it uses the wireless receiver send module, through the use of the hands of the remote control can control the volume size, but also Add a piece of HCF4052 Road for the importation of sound choices, to support the idea of audio signal input, the output audio signal all the way:

在IAR Embedded Workbench IDE平台使用ATmega1280的USART1口的编译连接通过的485通信的master机和slave2以及slave3的程序-IAR Embedded Workbench IDE in the platform of the ATmega1280 compiler USART1 I connect the 485 through the master communication and slave3 procedures, as well as slave2

周立功公司开发的单片机手册，具体的数据手册见周立功网站下载。-Week Ligong Singlechip developed manual, the specific data manual see Zhou Ligong website.

Keil C Proteus 联合仿真的VDM51_dll文件.rar-Keil C Proteus 联合仿真的VDM51_dll文件.rar

本程序是4位七段显示、3x3键扫实验，正确无误。-4 This procedure is the seventh show, 3x3 keys sweep experiments are correct.

P89LPC900系列单片机 P89LPC922单片机的ISP下载功能的相关方法-P89LPC900 MCU P89LPC922 MCU ISP download the relevant methods