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DS90UB949-Q1: Whether could use GPIO in 949 to achieve UART communication

Amelie Zheng
Genius 10865 points
Part Number: DS90UB949-Q1

Hi Team,

May I ask whether customer could use GPIO in 949/926 to achieve UART 115200 data rate?

If yes, do they need to use GPIO[0:3] or GPIO_REG?

  • 0
    TI__Guru** 103215 points

    Hello Amelie,

    GPIO speeds depend on if you are operating in the forward or reverse direction for FPD-Link. Please see the 926 datasheet page 11 for GPIO speeds in for forward or reverse GPIO. 115200 buad rate is too high for the reverse direction but in the forward direction it is possible with GPIO[0:3]

    Best Regards,

    Casey