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主CPU有一数组要发给cla处理，当数组小的的话，可以进行数据共享，但数组太大时，编译有错，错误为内存太小，带怎么办
删，message ram就那么大。
我有个想法，你可以试试，不一定行。把cla data ram分配给cpu，然后写入数据，再把cla data ram分配给cla处理，切换过程加必要延时。需要确保此特定cla data ram分配给cpu时，cla不会对其访问。
