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S32DS / S32K144: holding low the UART tx pin

Question asked by Joao Roscoe on Apr 12, 2019
Latest reply on Apr 15, 2019 by Lukas Zadrapa

I'm using UART to interface with a chip which implements a "safe mode" UART configuration in which the chip runs it's UART port with a standard, known parameters set - this allow recovering from configuration errors.

 

To trigger such "safe mode" I need to hold UART Tx at low, for a predefined, long time. What would be the best way to accomplish that? Changing the port configuration to GPIO, and than back to UART?

 

Best regards,

Joao

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