U2270B，对U2270B芯片进行了详细介绍。-U2270B, on U2270B chip described in detail.

是单片机对交通灯的ASM 编程源程序代码，有用，只能做为参考-SCM is the traffic lights to the ASM program source code, useful only as a reference

自已制的51开发板上的源代码A，里面有16x16点阵,1602+1302+18b20,adc0804演示,AT24C02EEPROM,dac0832演示,ds1302+lcd12864+1802,ds1302数字钟（lcd1602）,ds1302数字钟（led）等代码。-51 developed their own system on-board source code A, which has 16x16 dot matrix, 1602+ 1302+ 18b20, adc0804 demo, AT24C02EEPROM, dac0832 demo, ds1302+ Lcd12864+ 1802, ds1302 digital clock (lcd1602), ds1302 digital clock (led ), etc. code.

CH375的库。用于usb通信以及u盘读写的一块好芯片。-Library CH375. Communications, as well as for the usb disk to read and write u a good chip.

Atmega169 usart 驱动-Atmega169usart drive

这是新华龙（www.xhl.xom.xn）开发的，基于单片机，现在可以在它的网站上免费下载，不过当初他可是花了500大元买的。 --It is developed by www.xhl.xom.xn and based on SCM.

很完整的门禁系统原码，希望能帮助大家更好的学习学习一下

数模转换器和模数转换器在单片机系统中的应用：AD转换器和DA转换器在MCS-51系列单片机系统中的应用-DAC and ADC in Single Chip System: AD converters and DA converters in the MCS-51 Series Single Chip System

此为友善之臂micro2440板的底板原理图，更新时间是2009年2月28日。-This is a friendly arm on the Backplane board micro2440 schematic, update time is February 28, 2009.

51单片机的波特率设置计算小工具。方便的计算值就可用波特率产生。-51 Baud Rate Setting small calculation tool. To facilitate the calculated values can be generated with baud rate.