GPIO Expander Address

Hi,

I'm having trouble identifying the GPIO Expander on i2c1. According to the data sheet and the avnet schematics, this should be at address 0x20? But I cannot detect it on the bus.

Have I got the correct address?

Thanks,

Richard.

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0 rgb-sti over 7 years ago

Hi,
Maybe it is there. i2cdetect just doesn't seem to pick it up. When I read from that address, it does return something.
I also detected something at adress 0x21. Any ideas what that is? Also 0x30?
Thanks,
Richard.
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0 rgb-sti over 7 years ago

Hi,
Maybe it is there. i2cdetect just doesn't seem to pick it up. When I read from that address, it does return something.
I also detected something at adress 0x21. Any ideas what that is? Also 0x30?
Thanks,
Richard.
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Vote Up 0 Vote Down

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