是protel的讲义，应该有利于大家的学习

用89c51单片机与USBD12结合的电路图和源程序.. -with 89c51 SCM and USBD12 combination of circuit and the source ..

很好的字模提取工具！能够大大加快开发字模显示程序的开发！比如说：液晶显示，led点阵模块的数据显示！-good Abstraction tool! Able to greatly accelerate the development of character mode display program development! For example : LCD, led dot matrix module data show!

AVR中断函数,很好用的，真的！ -interrupt function of AVR

C8051F020/1/2/3混合信号ISP FLASH微控制器数据手册（中文的哦）-C8051F020/1/2/3 Mixed-Signal ISP FLASH MCU Data Sheet (Chinese, Oh)

1．熟悉硬件仿真工具KD30的使用。 2．修改样本程序 SAMP1a，使无论在计数或停止计数时，按 SW3 均对计数值清零，并停止计数。 3．编制一个秒表程序, 测试精度为0.1秒，按 SW1键启动计数，再按一次 SW1键停止计数。任何时候按 SW3 键停止计数，并对计数值清零。 4．按 SW1键后， 以 0.1 秒为单位开始计数，再按一次 SW1 键停止计数。若按 SW1 键时间超过2秒，则计数值清零，回到初始状态。-1. Familiar with the hardware simulation tool KD30 use. 2. Revised procedures SAMP1a samples, regardless of the count or counts at the end, according to SW3 numerical terms were right, reset, and stop counting. 3. Preparation of a stopwatch procedures, testing accuracy of 0.1 seconds, according to bond SW1 start counting, according to a key SW1 stopped counting. By SW3 any time to stop counting bond and reset the count. 4. By SW1 bond, after 0.1 seconds for start counting, according to a key SW1 stopped counting. If SW1 keys by the time more than two seconds, then reset the count and return to the initial state.

日历时钟显示汇编程序,注释很详细,保证能很快看懂-Dang显钟时日Sa striped met the most序, agate细Note释exhaust, exhaust Xikui despair殿vessels do ya

stc单片机的iap程序，用c51写的，是从汇编转换过来的-SCM STC IAP procedures, using C51 write is from the compilation of the conversion from the

有学习单片机的可以下下 17种使用小软件这时其2-RUANJIAN

数字滤波文中描述了有关单片机滤波的各种常见算法需要维普浏览器打开-digital filter paper describes the SCM filtering algorithm needs of common browsers open Vip

一款带七路数字输入、二路脉冲输入、四路模拟输入、六路数字输出的工业控制板。值勤得学习哦。-With a seven-way digital input, Rd pulse inputs, four analog inputs, six digital output of the industrial control panel. Duty was to learn Oh.