• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 32 subscribers
  • Views 378 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.

DS90UB928Q-Q1: Setting of GPIO pin

Tomoaki Yoshida91
Genius 5255 points
Part Number: DS90UB928Q-Q1

Hi team,

We are using GPIO as input and have Ser GPIO output this value. 

When setting according to the back channel in the table below, the setting of 928 was set to 0x07 instead of 0x03.

However, as expected, 928 GPIO pin inputs are output to the 927 GPIO.

From the table below, the direction of Local GPIO is input, but Remote GPIO control is Enabled.

Is there a problem with using this setting?

Best regards,

Tomoaki Yoshida

  • 0
    TI__Guru** 103215 points

    Hello Tomoaki,

    If the 928 side is the input and the 927 side is the output, then on 928, 0x1F[2] should be low (GPIO3 is not an output on the 928 side. It is an input). Please follow the table for the datasheet. 

    Best Regards,

    Casey