the SCM and PC communications in the Windows source code

FIQ有FIQ_PWM、FIQ_TMA和FIQ_TMB三个中断源,当定时器A或B计满溢出时产生中断请求信号TA_TIMEOUT_INT或TA_TIMEOUT_INT,CPU响应后进入中断执行相应的子程序控制二极管发光。A口的低四位接LED灯，B口的低四位接LED灯.-FIQ has FIQ_PWM, FIQ_TMA and FIQ_TMB three interrupt sources, when the timer A or B when the expiration overflow interrupt request signal TA_TIMEOUT_INT or TA_TIMEOUT_INT, CPU response after interruption of the implementation of the corresponding subprogram control light-emitting diodes. A low population of four LED lights then, B I take the low four LED lights.

LED的亮度渐变驱动程序，可以调节LED 的亮度，并且在AVR单片机上实现-Gradient brightness LED driver can adjust the LED brightness, and realize in the AVR Single Chip

x5045,在P89V51RD2中用的，有EEROM，还有看门狗功能等！如果要详细的可以联系我，550291932-x5045, in P89V51RD2 used, and has EEROM, there are watchdog function! If you want details you can contact me 550291932

无线模块nrf24l01程序，实现发送与接收功能。-Wireless module nrf24l01 procedures implementation to send and receive functions.

单片机子程序 对初学者的课程设计应该会有些帮助^o^-SCM subroutine for beginners courses should be designed to be helpful ^ o ^

AT89C51单片机的细分电机的驱动程序-AT89C51 microcontroller driver for the motor segments

适用于51单片机的万年历算法.rar-applied to the MCU 51 calendar algorithm. Rar

时钟芯片在单片机系统中的应用,实现单片机的时钟应用，可以显示时钟-Clock chip in the single-chip system, the realization of single-chip clock applications, can display clock

这是一个读取ID卡的源代码，仅依靠8052的时钟读取125K频率的ID卡。-This is an ID card read the source code, only 8,052 on the clock read 125K frequency ID cards.