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Forum Post: RE: TMP112 High Speed Mode

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Hello Natailia,

Please do not send a STOP at the end of your communication if you intend to stay in HS mode. STOP will get the device out of HS mode. 

Procedure to get into High speed mode is as follows;

1.Start

2. 0x08

3. NACK by TMP112

4. Start + I2C slave Adderes+R/Write Communication

5. Repeat Start......

You will notice that after sending the initial 0x08, everything else is exactly same as what you did in the other mode with an exception of not using a STOP.

Never use a STOP unless your intention is to get out of HS mode. After you send the initial 0x08 you should be able to communicate at 3.4MHz.

Best regards,

Abhi


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