字母小到大

液晶YM12864与AT89S51并行通信，可以显示四行中文字符-AT89S51 LCD YM12864 with parallel communication, can display four lines of Chinese characters

1) 东西方向车辆放行20秒钟。即东西方向的绿灯和南北方向的红灯同时点亮20秒钟； 2) 20秒钟后，东西方向的黄灯闪烁2秒钟，以警示车辆将切换红绿灯。此时南北方向仍维持红灯点亮。在南北方向亮红灯期间，在2位数码管上显示计数值（每秒减1），从20减至01。 3) 东西方向的黄灯闪烁2秒钟后，转为南北方向放行20秒钟。即东西方向的红灯和南北方向的绿灯同时点亮20秒钟； 4) 南北方向放行20秒钟后，转为南北方向的黄灯闪烁2秒钟，以警示将切换红绿灯。此时东西方向仍维持红灯点亮。 5) 南北方向的黄灯闪烁2秒钟后，再转为东西方向车辆放行20秒钟。如此循环重复。 -1) direction vehicle release 20 seconds. What is the direction of red and green light at 20 seconds, 2) 20 seconds later, the yellow lights flashing warning vehicles with 2 seconds, switch to the traffic lights. This is still remain red light north-south direction. In the south during the red light, in the direction of the digital display tube of 2 per plan (minus 1), from 20 to 2001. 3) the yellow lights flashing direction to 2 seconds later, the south direction release 20 seconds. What is the direction of the north-south direction of red and green and light 20 seconds, 4) north-south direction after 20 seconds to release the north-south direction, yellow lights flashing warning, with 2 secon

汇编写的迷宫- Collects the compilation the labyrinth

实现多字节的十六制数的相乘，入口为被乘数高字节地址，乘数高字节地址，字节数，出口为积最高字节地址-The realization of multi-byte number of the system multiplied by 16, the entrance of the high-byte address for the multiplicand, the multiplier high byte address, byte count, exports the highest byte address for the plot

该文件的内容是设计一个五层楼的电梯控制装置,要求每层楼根据需要控制设上下控制按键及按键指示灯,全部楼层只设置一个当前楼层显示 电梯内设开关门按键 各楼层按键及指示灯,开关门要有声响提示 每层楼高度为0.30米,楼层全高1.5米-the contents of this document is to design a five-storey building in the lift control device on each floor under the requirements necessary to control the upper and lower control buttons located buttons and lights, all floors can provide a current show floor elevator door keys internal switches on each floor of buttons and lights, switches doors have audible alert signal height of each floor 0.30 meters, the entire floor 1.5 meters high

某种的mcs51格式转换到另一种格式 -Some of mcs51 format conversion to another format

PIC16F877实现按键扫描和数码管显示、蜂鸣片同时DD响，当按键下时，数码管加一，蜂鸣片DD响两次。-PIC16F877 to achieve key-scan and digital tube display, beep sound piece at the same time DD, when the button when you are not, the digital control plus one, beep piece DD ring twice.

用DSP实现PN码,用汇编语言编程实现,-with DSP PN code, assembly language programming,

使用AT89C52驱动LED点阵，包涵源程序及PROTUES制作的原理图，内容完整-AT89C52-driven use of LED dot matrix, includes source code and schematics PROTUES production, content integrity

8051监控程序：-使用外部ram运行用户程序-使用EEPROM保存用户程序-提供单步去毛刺，可以读取内部寄存器和ram