Identifying TOF chips in a system... Is there a way to determine what chips are attached to a board? We would like to support multiple TOF parts, but need to know what parts are attached to the I2C bus before writing to them.

JMerk.1 · ‎2022-08-23

Tesla DeLorean · ‎2022-08-23

Can't you scan the I2C address space, and check the WHO_AM_I registers?

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JMerk.1 · ‎2022-08-23

We can scan the bus and locate - see the part.

Most memory devices do contain a manufacturer and device ID register.

I don't believe the TOF devices have a WHO_AM_I indexed register. (At least not documented...)

John E KVAM · ‎2022-08-23

All the ST ToF sensors will talk on 0x29 (7-bit address) 0x52/0x53 are the write/read addresses.

So if you have more than one, you have an issue.

But if you are trying to tell the difference between a VL53L0 and a VL53L1 then read address 0x00 and address 0x01. These will give you different numbers.

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