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Problem with 28335 TBSTS.bit.Synci register

Jianyang Liu
Prodigy 200 points

Hi everybody,

I have a question about the TBSTS.bit.Synci register.

In the epwm manual it says that this register Reading a 1 on this bit indicates that an external synchronization event has occurred. However, whenever I enable GPIO 32 as a synchronous input, even there is no external synchronization on GPIO32 this register still read a 1 whenever I ran the code. (if I disable GPIO 32 asEPWMxSYNCI  this bit reads an 0 instead)

Is there anybody knows why this happens?

Regards,

Jianyang Liu