UCD90320U: Poll the status of the GPI pins

Delaney Berger

Part Number: UCD90320U

Hi,

Can you check my understanding of continuously polling the status of the GPI pins?

The right way to do this would be with the MFR_STATUS(F3h) command, where each GPI fault bit is 1 if the GPI pin is 0?

Thank you,
Delaney

0 yihe over 3 years ago

No, Customer has to use GPIO_SELECT(0xFA) and GPIO_CONFIG(0xFB) command to read the GPI status

Writing Command 0xFA to select the target GPI pin and read 0xFB to get the status

Please see section 10.40 and 10.41.

Regards

Yihe

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