C6678的SRIO接口初始化完成后有一个DEV_ID,用来做包路由之用(0x0290b000)处。我想知道是不是在任何时候,只要重写这个寄存器就可以改变C6678自身的DEV_ID呢?这个寄存器是不是任何时候都可以修改的呢?
谢谢!
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C6678的SRIO接口初始化完成后有一个DEV_ID,用来做包路由之用(0x0290b000)处。我想知道是不是在任何时候,只要重写这个寄存器就可以改变C6678自身的DEV_ID呢?这个寄存器是不是任何时候都可以修改的呢?
谢谢!
见SRIO手册
The device identity CAR (DEV_ID) is shown in Figure 3-71 and described in Table 3-63. Writes have no effect to this register after boot_complete is set.
也就是说SRIO起来以后就不能改了