i2c总线的vhdl实现和vxworks的文件系统,i2c bus VHDL realization and VxWorks file system

sources of CPLD (fpga) from freescale i.MX27 Avanced Designe System Develpment Kit board,sources of CPLD (fpga) from freescale i.MX27 Avanced Designe System Develpment Kit board

配置pio，关于vxworks系统上，at91sam9g20(This routine performs such BSP-specific initialisation as is necessary before the architecture-independent cacheLibInit can be called. It is called)