• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 34 subscribers
  • Views 489 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TLIN1029-Q1: UART Connection

Andreas Trampe69
Prodigy 80 points
Part Number: TLIN1029-Q1


Hello, I would like to connect the TLIN 1029-Q1 to the MSP430F2155. Do I have to provide pull up resistors? For EN I can use the internal pull up. What about RxD and TxD?

Many Thanks

  • 0
    TI__Guru 74322 points
    Andreas,

    Unless there is an internal pull-up on the pin connected to RXD on the microcontroller that can be used, there will need to be an external pull-up resistor, as it is an open-drain output. Both EN and TXD are inputs and thus will need to be driven by the MSP430, so pull-ups shouldn't be necessary unless required by the output of the microcontroller, which i don't think is the case.

    Both pins will still function correctly with pull-up resistors added.

    Regards,