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例程配置为SRIO_DIGITAL_LOOPBACK测试模式。
上图八个printf是我自己加上去的,为了看gpSRIO_regs->LSU_CMD[lsuNum].RIO_LSU_REG1,gpSRIO_regs->LSU_CMD[lsuNum].RIO_LSU_REG2 被赋值前后的变化。断点打在KeyStone_SRIO_LSU_transfer()函数的末尾。下图是执行结果。在执行赋值语句后,这两个寄存器被赋值后为什么还是0x0?