RAM存储器： 设定16 个8 位存储单元。如果read= 1 则dataout<=mem(conv_integer(address)). 如果write= 1 则mem(conv_integer(address))<=datain.

老师上课的材料，合众达DM642的sdram读写验证程序，可直接在DM642上运行-Teacher in the class of materials, Triangle of the DM642 sdram read and write verification process can be run directly on the DM642