Android-multi-threaded-HTTP-download

stm32 mini板dht11温湿度测试程序(stm32 mini board dht11 temperature and humidity testing procedures)

说明：  该源码实现51单片机之间符合modbus通信协议的通信(This code can achieve communications between MCS51 by modbus protocol. )

使用51单片机以及红外管，这段代码实现小车沿着黑色线路准确行走，但是要自己修改到合适的左右轮速度才能完美转弯。(By using 51 MCU and IR LED light tube, the code can achieve the goal of moving according to the black line. But you need revise the speed data of the left and right tire so that the car can turn aroud perfectly. )

改程序适应于电力系统短路电流计算，生成节点导纳矩阵和阻抗矩阵。(Change program suitable for power system short-circuit current calculation, to generate the node admittance matrix and the impedance matrix.)

This is LM3S9B92 Sample Code data

很适合英飞凌单片机的初学者，可作为初学者的很好的参考资料。(Infineon microcontroller is suitable for beginners, as a good reference for beginners.)

一个以太网帧解析程序，实现以下功能：解析已封装好的Ethernet V2.0帧封装文件（见附件），判断有多少个帧，每个帧的所有字段内容，检测CRC校验是否正确(An Ethernet frame analysis program, the following functions: parsing the encapsulated Ethernet V2.0 frame encapsulation (see annex), to determine the number of frames, each frame contents all fields to detect CRC checksum is correct)

说明：  ＭＳＰ４３０Ｆ４４９的硬件乘法器操作IAR Practice code(MSP430F449 hardware multiplier operation code IAR Practice)

建立单片机控制系统，研发需要的产品上面需要更完美的展现。(Establishment of MCU control system, research and development needs of the above products need to be more perfect show.)

飞思卡尔单片机锁相环程序，详细说明了锁相环的配置步骤以及计算方法(Freescale MCU PLL procedures, a detailed description of the PLL configuration steps and calculation methods)