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6455 使用bios,如何指定内存为数据段



想使用HPI和ARM进行交互,ARM作为HOST访问DSP的话,需要先向HPIA中写入提前既定的地址,

现在在bios配置的MEM选项中,分配了一个名叫HPIRAM的空间(地址空间为9B0000~9Bffff),在程序中如何操作,实现才可以把自己数据写入这个地址空间?