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Which function used for read I2C device address?

MDeva.1
Associate II

‎2021-11-26 07:29 AM

Hello,

I am working on NUCLEO-H745ZIQ board. I am interfacing PCAL6524 to board .I have to read the Device address of that IC. Which HAL function that I have to used? I am get confused.

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11 REPLIES 11
MDeva.1
Associate II
In response to MDeva.1

‎2021-11-26 11:23 PM

why you shift in right side?

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TDK
Guru

‎2021-11-27 07:25 AM

You need to shift the address because that's what HAL expects, but since you already did that, don't shift it again.

Send 0x46, or send 0x23 << 1.

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