Temperature sensor AD7410

[ShivImp]

Hi

I am using 4 x AD7410 in each TWI channel, using both TWI ports.  So, altogether 8 AD7410s.   ( I used the Adafruit breakout boards).

Initially I get the temperature readings correctly - used the Putty,    each time I manually reset the nRF52840DK.    The board is powered from my laptop's USB.  

22.37
22.50
23.00
22.50
23.00
22.62
23.00
23.25

After I  leave the DVK non-functional and  I reset it,  the board returns an error.  The same error appears  when I reset the nRF52840DK.  

app: ERROR 3 CNRF ERROR INTERNAL] at C: SDK 17 . 1.0 
pc at: ox00030CBF 
app: End of error report 

Could you provide any suggestions on identifying the root cause?

Thanks.

ShivImp

[Einarh]

Hello

After I  leave the DVK non-functional and  I reset it

It is not clear to me what you mean by this.

Could you please explain in more detail exactly what is happening?

Best regards,

Einar

[ShivImp]

Hi Einar

The nRF52840 DK  powered by the laptop USB  is used as the development platform.  I connect TWI0  to 4 units of ADT7410.  And another 4 units of ADT7410 to TWI1.    I programmed the code to read 8 values from ADT7410.  It works as expected returning one set of readings.    I leave the whole setup with the nRF52840 still connected to my laptop ( DELL laptop's)  USB.

After about 5 minutes, I  reset the nRF52840DK.  I expect the temperature values to  be read and displayed.  However, it returns an error and no longer reads and displays the temperature readings.

If I use a Toshiba laptop,  everything works fine.   Because of this,  I suspect  the nRF52840DK's USB compatibility with certain laptops.

kind regards

ShivImp 

[Einarh]

I see. I don't have any immediate suggestions for why it would behave differently with different laptops. Do they all run the same OS?

Have you tested this with different samples other than your own code?

-Einar

[ShivImp]

Hi Einar

Not as yet.  My dell uses Windows 10 Pro.  Toshiba uses Windows 11 Pro.  

ShivImp

[Einarh]

Ok

I doubt the OS should make a difference then.

I would suggest to try to reproduce your issue with code you haven't written yourself, and with as simple a program as possible. That would make it easier to figure out what's going on.

-Einar