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AM3359 ICE BOARD REV2.1A的板子跑ethercat从站遇到的问题

Other Parts Discussed in Thread: AM3359, SYSBIOS

板子:AM3359 ICE BOARD

从站代码:am335x_sysbios_ind_sdk_1.1.0.8里的full 从站。

两个主站:一个是Twincat3.1 一个是开源主站Igh。

当主站为TC时,切换从站从preop到safeop的切换后,Watchdog Status Process Data 寄存器地址0x0440 被置成Active。

而当主站为Igh时,状态safeop状态下,Watchdog Status Process Data寄存器没有被置位。

我的问题是当从站运行状态切换到safeop状态下,哪些寄存器会影响Watchdog Status Process Data寄存器的Active?

在这里谢谢ti大神的解惑。