这是MC9S12DG128定时器模块中脉冲累加器应用实例

用单片机和数码管，构成数字时钟。可以设定时间和闹钟。-MCU and digital control, constitute a digital clock. Can set the time and alarm clock.

PIC单片机模拟SPI口-PIC simulation SPI mouth

基于MCS51的小灯控制程序，里面有详细的注释，请多多指教-MCS51-based small-signal-controlled process, which has detailed notes, please advise

一线总线”数字化温度传感器是DALLAS最新单线数字温度传感器， 同DS1820一样，DS18B20也 支持“一线总线”接口，测量温度范围为 -55°C~+125°C，在-10~+85°C范围内,精度为±0.5°C。DS1822的精度较差为± 2°C 。现场温度直-Bus line " digital temperature sensors are single-DALLAS latest digital temperature sensor, with the DS1820, as, DS18B20 also supports" bus line " interface, measurement temperature range of-55 ° C ~+125 ° C, at-10 ~+85 ° C range, the accuracy of ± 0.5 ° C. DS1822 relatively poor for the accuracy of ± 2 ° C. scene straight temperature

* The keyboard is assumed to be a matrix having 4 rows by 6 columns. However, this code works for any * matrix arrangements up to an 8 x 8 matrix. By using from one to three of the column inputs, the driver * can support "SHIFT" keys. These keys are: SHIFT1, SHIFT2 and SHIFT3.

是关于sd卡的接口电路图以及pcb封装原理图 是sd卡驱动者重要的资料-Is on the sd card interface circuit and the pcb schematic package sd card driver is important information

一个电子产品开发时的部分c代码E!绝对能用!-When an electronic product development part of c code E! Absolutely can!

本源程序使用C51控制的PLL(SANYO LC72131)收音,可以通过HT1621驱动LCD显示,有完整的按键控制程序模块,能通过KEY进行各种功能操作,整个程序采用模块化设计,移植方便,可以初学者参考使用.(之前的那个也是我上载的,怎么就没开通?)-C51 use the source control PLL (SANYO LC72131) radio, Driving through HT1621 LCD Display, a complete module button control procedures, KEY through various functional operation, the whole process has a modular design and facilitate transplantation, beginners can use and reference. (which is also before I posted, how never opened)

高精度实时时钟-SD2001驱动程序，在要求较高精度的地方可以作为参考资料。-High-precision real-time clock-SD2001 driver in place require a higher accuracy can be used as reference materials.

灭火控制盘（XMP4-2） -Fire control panel (XMP4-2)