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LDC1312-Q1: Getting Device ID or manufacturer ID

Sarang Anjal82
Prodigy 230 points
Part Number: LDC1312-Q1
Other Parts Discussed in Thread: LDC1312

I was trying to get device ID using address 7F and also manufacturer ID 7E

but to my observation the reply from LDC1312 was different so is there a problem

in I2C communication, also what should be the data for both the address.

LDC1312 is used as a slave with slave address 0x2A. 

The data which I got was 0x2A2A for 0x7F and 0x2AFF for 0x7E.

What is the issue please help.

Regards

Sarang

  • 0
    TI__Intellectual 2725 points

    Hi Sarang,

    Apologies for not being able to get back to you yesterday. Actually, when the ADDR pin is set low, the LDC I2C address is 0x2A; when the ADDR pin is set high, the LDC I2C address is 0x2B.

    The Device ID and manufacturer ID are stored in register addresses 0x7E and 0x7F, and should read 0x5449 and 0x3054. Another observation I'd like to make is that 0x2A is 0x54 backwards...

    Can you confirm what the ADDR pin is set to?

    Regards,

    Varn.