Other Parts Discussed in Thread: TDA2, TPS22918
Hello，
When testing TDA2 with TPS659039-Q1, the following phenomena were found:
Using the control shown in the following figure to enable TDA's IO voltage timing control, it was found that the level of GPIO4 is unstable after power on, leading to a pull-down situation, resulting in the subsequent IO voltage disconnection and abnormal system operation.
We have attempted to cancel TPS22918, direct control, and the system currently appears to be functioning normally.
But we found the following description in the specification book, indicating that SYSEN1 is the second function. Does it require configuration to take effect? How can you determine the current state?
