TMP75: How to read the TMP75 16 bit temperature register byte1&byte2

user5184363

Prodigy 170 points

Part Number: TMP75

When we want to read the temperature from temperature register byte1&byte2,we use the code :wBuf:[0],nRead:1

But we can only read the byte 1 (8 bit) register from the code,can not get the byte 2 register

What should we get the 16 bit register ?

Thank U

over 3 years ago

0 Josh Wyatt over 3 years ago

TI__Guru* 90906 points

Dear Liang -

Thanks for posting! Please see page 15 of the TMP75 datasheet for the two byte read format.

https://www.ti.com/lit/ds/symlink/tmp75.pdf

0 Ren Schackmann over 3 years ago

TI__Mastermind 35825 points

Hi user,

Multiple byte read is part of the I2C standard. If you're using software that only fetches one byte, you'll probably have to find a different function that can fetch an array of bytes. This would be part of your software library for your host, and we wouldn't be able to support that software (unless it were a TI MCU.)

thanks,

ren

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TMP75: How to read the TMP75 16 bit temperature register byte1&byte2