AWR1642: I2C Stop sequence

Kensuke

Expert 1140 points

Part Number: AWR1642
Other Parts Discussed in Thread: TMP112, MMWAVE-SDK

Hi,

How to operate the I2C module to return Ack instead of Nack at Stop?

Can AWR1642 I2C module do that?

The temperature sensor TMP112 requires Ack at Stop.

Thanks,

over 7 years ago

0 Raghunandan Kamath over 7 years ago

TI__Mastermind 22155 points

Hello KH,

Have you checked using the "NACKMOD" and setting it to 0 ?

-Raghu

0 Kensuke over 7 years ago in reply to Raghunandan Kamath

Expert 1140 points

Hi Raghu,

Yes, I have used the NACKMOD as 0;

The ICMDR setting at Start:
ICMDR.STT = 1
ICMDR.MST = 1
ICMDR.TRX = 1
ICMDR.RM = 1
ICMDR.IRS = 1
other bits are set to 0

The ICMDR setting at Stop:
ICMDR.STP = 1
ICMDR.IRS = 1
ICMDR.MST = 1
ICMDR.RM = 1
other bits are set to 0

Thanks,

0 Raghunandan Kamath over 7 years ago in reply to Kensuke

TI__Mastermind 22155 points

Hello KH,

Are you able to refer to the MMWAVE-SDK example for the I2C driver and example?

-Raghu

Sensors

Sensors forum

AWR1642: I2C Stop sequence