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TMP102 Register Read Prob

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Yuvaraj Velumani posted on 30 Aug 2009 10:18 AM

Hi,

Iam using TMP102 device in my design. As an initial stage of testing i was trying to read the configuration register default values. Instead of getting 0x60,0xA0 im getting 0x17,0x70 values. I have checked the wavforms in oscilloscope, the data transfer my host master device(OMAP 3530). I am having a 1.8V to 3.3V level translator in between & I measured the waveform at the input of TMP102 only. ADD0 is connecting SDA line & i noted that master is not sending any ACK signal for the last data byte read(data byte 2).

Will it cause any problem.? I tried to write the default values in the cnfiguration register, but in that condition also, iam getting the value as 0x17 & 0x70 only.

Pls hel me in solving this.

Thanks & Regards,

V.Yuvaraj 

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