实现FPGA与DSP之间通信的接口,利用DSP的标准EMIF接口,the interface for TI DSP and Xilinx s FPGAs

TI 6474 的emac 使用例程，使用88e6122 作为物理芯片，初始化sgmii与mdio,可以向上位机发送数据报文- test code for emac perpheral of dsp tms320c6474,use 88e6122 as phy device and initial sgmii and mdio ,can send ethernet packet to pc

DM642上电之后初始化的代码，包括EMIF的初始化，I2C GPIO的使能，VP0 VP1 VP2的使能，已经MCBSP MCASP的使能-DM642 on electricity after the initialization code, including the EMIF initialization, I2C GPIO enabling, VP0 VP1 VP2 enabling, has enabled the MCBSP MCASP