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ARM通过HPI读取DSPSRAM中的数据时需要DSP端复位为什么呢?



网友“古董”在21ic TI DSP技术论坛问以下问题未能解决:

ARM[SC2440]通过HPI读取DSP[DM642] SRAM中的数据时,每次都需要DSP端复位才有读到正确的值,为什么呢?