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How to set GPIO2 output after 10ms powerup?

Huang Sauron
Prodigy 50 points

Part Number: DS90UB948-Q1
Other Parts Discussed in Thread: DS90UB949-Q1EVM

Tool/software:

Hi Ti-teams, 

Our Android system included Android board + DS90UB949-Q1EVM + 948 + Touchscreen.

We want to make GPIO2 output (active high) after 10ms system-powerup, 

How to make such delay by register-setting?

Thanks for your supports.

  • 0
    TI__Mastermind 33000 points

    Hi Huang,

    Delay could be added in software prior to GPIO enable command. For example in python you can do the following.

    For example to force GPIO2 high on the 949 side you can write the following.

    import time

serAddr = 0x18 
time.sleep(0.01) #10 ms 
board.WriteI2C(serAddr,0xe,0x90) #Setting GPIO2 high

    Regards,
    Fadi A.