RTOS/LAUNCHXL-CC2650: temperature measurement

Jorge Ribeiro36

Part Number: LAUNCHXL-CC2650
Other Parts Discussed in Thread: CC2650

Tool/software: TI-RTOS

Hi,

I'm using an adt7311 to measure temperature (SPI). I programmed a cc2650 with sensor controller studio but I only measure 0º.

what's probabily wrong?

Thanks.

over 7 years ago

0 TER over 7 years ago

TI__Guru**** 317180 points

Without knowing how you have implemented you code it's not possible to help you in any detail. My first guess is that you are setting up the sensor wrong or are reading from the wrong address. I would use a scope to monitor the SPI interface and compare it with the adt7311 datasheet.

0 Jorge Ribeiro36 over 7 years ago in reply to TER

Intellectual 520 points

SCS.zip

Hi TER,

that's my project.

Thanks

0 TER over 7 years ago in reply to Jorge Ribeiro36

TI__Guru**** 317180 points

Check if your SPI is set up correctly. In the sensor datasheet it looks like the first clock edge should be negative. As said, measure on the SPI but ans compare with the requirement in the sensor datasheet.

0 Jorge Ribeiro36 over 7 years ago in reply to TER

Intellectual 520 points

Hi Ter,

I had the spi mode wrong, but now I already correct that but my project doesn't work.
do you know why?
Thanks

0 TER over 7 years ago in reply to Jorge Ribeiro36

TI__Guru**** 317180 points

This forum is for TI devices and I don't know why you are not getting the correct response a non TI sensor. Have you actually compared the SPI bus traffic with SPI in the sensor datasheet? If this looks correct you have to contact ADI on how you should communicate with their sensor.

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RTOS/LAUNCHXL-CC2650: temperature measurement