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DS90UH941AS-Q1: DS90UH941AS-Q1 mapping GPIO via port1 was unsuccessful

tecman chen

Prodigy 30 points

Part Number: DS90UH941AS-Q1

GPIO0 and GPIO1 are set in the GPIO register, the port0 mapping succeeds, but the port1 mapping fails, what is the reason?

0 Josh Baik 9 months ago

TI__Mastermind 18771 points

Hi Tecman,

It seems like a topic that follows your previous thread. Please read the app notes and FAQs carefully. (FAQ Link)

Also, refer to this E2E thread regarding your topic.

https://e2e.ti.com/support/interface-group/interface/f/interface-forum/1067225/ds90ub941as-q1-how-to-config-reg-to-access-port1-948-in-splitter-mode

https://e2e.ti.com/support/interface-group/interface/f/interface-forum/1199508/ds90ub941as-q1-how-to-config-941-in-splitter-mode-i2c-access-port1-948

If there are further help needed after following the FAQ and E2E threads, we can take a deeper look.

Best,

Josh