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我想知道MicroBlaze的數據總線例外情況。在MicroBlaze產品手冊中,它指出只有在緩存關閉時才能在M_AXI_DC上發生異常?這對我沒有意義;是否意味着如果在M_AXI_DC行上給出錯誤響應,如果啓用緩存,則不會觸發異常?我目前有C_DCACHE_ALWAYS_USED設置爲1,所以這不是一個問題。MicroBlaze AXI4異常
謝謝。從MicroBlaze的產品指南
摘錄:
The data cache AXI4 interface (M_AXI_DC) exception is caused by:
- An error response on M_AXI_DC_RRESP or M_AXI_DC_BRESP,
- OKAY response on M_AXI_DC_RRESP in case of an exclusive access using LWX.
The exception can only occur when C_DCACHE_ALWAYS_USED is set to 1 and the
cache is turned off