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AM5708: gpmc片选地址空间

Part Number: AM5708
Other Parts Discussed in Thread: SYSCONFIG

您好:GPMC总线与FPGA连接,引脚及其他寄存器也都配置了,CSGPMC_CONFIG7_0 (地址0x50000078 )寄存器设置为0x0000F48,请问对FPGA进行读写操作,片选地址是0x08000000吗?

比如写FPGA:*((UInt32*)(0x08000000)= 0x5A5A;

读FPGA:temp = *((UInt32*)(0x08000000);

这样对吗?发现片选地址没有拉低,是什么原因?