USB mouse, SCM can be

基于89S51的称重系统，ADC0809加LED数码管动态显示-devised based on the weighing system, Connection between ADC 0809 plus digital LED control Dynamic Display

点阵数码的驱动 例子显示“欢迎光临” 左右和上下交替显示-Examples of the digital dot-matrix driven displays " Welcome to" turn around and up and down display

uCOS-IImsp430型

关于电路设计的几点经验，从原理设计到实际应用，对一些个问题、经验综述-Points on the circuit design experience, from design to practical application of the principle of some question, synthesis of lessons learned

grads ditu find in lasg-grads cnriver & cnprovince

用C-BASEIC语言编写的805X单片机计算子程序P=A0+A1*X+A2*X*X+A3-with C-language BASEIC the 805X MCU calculation subroutine P = A0 A1 A2* X* A3* X* X* X* X* X

SD卡驱动 SD_CARD_TIMEOUT 当一个SD卡的操作超出时限，将导致返回错误和该标记被置位 SD_CARD_EXIST 当卡槽内插入了合适的卡体，不管是什么卡，都会使该位被设置； SD_CARD_WRITE_PROTECT 当卡体的写保护开关被 LOCK 时，则该位被设置； SD_CARD_READY 当卡槽内的卡被正确识别，并可以随时访问时，则该位被设置； SD_CARD_DOOR_CLOSE 当卡槽的门（产品外壳上的挡板开关）关闭时，则该位被设置； SD_CARD_IS_SD 当卡槽内插入的是 SD 卡时，则该位被设置。 SD_CARD_IS_MMC 当卡槽内插入的是 MMC 卡时，则该位被设置； 注意：不要使用 0x80，免得和整数作逻辑运算时被误为负数。-err

2051解码GPS数据装置的源代码,有详细的中文注释，是初次接触GPS解码开发人员不错的参考资料-GPS data decoding device 2051 source code, the Chinese have detailed notes, is the initial contact with GPS decoder developers good reference

MSP430系列单片机JTAG制作资料（并口），下载后将文件名改为.pdf即可-MSP430 MCU JTAG production of information (parallel port), download the file name will be changed. Pdf can

DS1302读写一体化C51源程序 以下引脚定义部分根据实际接线情况作适当调整 sbit TIMECLK = P1^0 sbit TIMERST = P1^1 //禁止DS1302 sbit TIMEIO = P1^2 //释放数据总线-C51 source integration DS1302 to read and write the following definition of part-pin wiring in accordance with the actual situations properly adjust sbit TIMECLK = P1 ^ 0 sbit TIMERST = P1 ^ 1// prohibited DS1302sbit TIMEIO = P1 ^ 2// release data bus