共两个文件，一个是对网络芯片W5500进行控制的master spi接口，另一个是w5500命令控制逻辑，命令格式按照w5500芯片的要求，分为地址段，控制段和数据段进行统一控制。此外提供w5500芯片初始化及读写控制流程图。-A total of two documents, one is the master SPI interface for network control chip W5500, the other is a w5500 command control logic, co

Chaos indicator for Lyapunov index calculation, Is a two hidden layer back propagation neural network, Multi-machine power system simulation and flow calculation.