nrf_temp_read() or sd_temp_get(&t) fault with S132

RE: nrf_temp_read() or sd_temp_get(&t) fault with S132

Jørgen Holmefjord — Mon, 18 Dec 2017 09:47:11 GMT

@akroizer a lot of the hardware peripheral examples in the SDK is not usable with the softdevice, as they make use of blocked or restricted peripherals. You should always check the softdevice specifications to see which peripherals is available to the application. The hardware peripheral examples is supposed to show how the peripherals of the chip can be used. Not all chips are using the softdevice, and it does therefore not make sense to mix the softdevice into these examples. If you are having trouble getting things working, don't hesitate to post a new thread here on DevZone to get help with your issue.

RE: nrf_temp_read() or sd_temp_get(&t) fault with S132

Ahuva Kroizer — Sun, 17 Dec 2017 08:42:59 GMT

Hi, I actually had a similar problem where I thought the temperature example can be used as-is but took a long time (and looking for answers in the forum) to understand that it is not useable with a softdevice. I agree with @manymany that it would be good to at least add a comment to the temperature example that says it is not useable with a softdevice.

RE: nrf_temp_read() or sd_temp_get(&t) fault with S132

manymany — Wed, 25 Jan 2017 14:00:42 GMT

My point of view was to use a very simple (easy to understand) example like temperature to show that there is two different world with Softdevice and without. But this comment was probably stupid, apologise please.

RE: nrf_temp_read() or sd_temp_get(&t) fault with S132

Jørgen Holmefjord — Wed, 25 Jan 2017 13:50:17 GMT

I don't understand what you mean by saying that the temperature example is a good way to understand the concept of softdevice. The temperature example show how the temperature peripheral works, and I don't think we should mix the softdevice into the peripheral examples. You cannot use the softdevice temp function without enabling the softdevice first, and starting to mix this into the peripheral example will just confuse people.

RE: nrf_temp_read() or sd_temp_get(&t) fault with S132

manymany — Wed, 25 Jan 2017 13:31:27 GMT

Yes. Sorry if I insist but I think temperature is a good basic example to understand the concept of Sofdevice and this should appear in SDK example/temperature.

RE: nrf_temp_read() or sd_temp_get(&t) fault with S132

Jørgen Holmefjord — Wed, 25 Jan 2017 13:24:35 GMT

Great that you got it working! Access to the TEMP peripheral is Restricted when running the softdevice and you should only access it through calls to softdevice functions.

RE: nrf_temp_read() or sd_temp_get(&t) fault with S132

manymany — Wed, 25 Jan 2017 13:17:28 GMT

Thank you very much Jorgen, I've just managed to get it working. I had not removed NRF_TEMP-> ... things. Now works fine. I spent a lot of time moving from S132-2.0.0-7_alpha to S132-3.0.0 mainly because of that. Some comments on that could appear in the temperature example.

RE: nrf_temp_read() or sd_temp_get(&t) fault with S132

Jørgen Holmefjord — Wed, 25 Jan 2017 13:09:28 GMT

And this is not working? Did you initialize the softdevice before calling sd_get_temp()?

RE: nrf_temp_read() or sd_temp_get(&t) fault with S132

manymany — Wed, 25 Jan 2017 13:06:51 GMT

No just replace nrf_temp_read() by sd_temp_get().

Remove also other stuff NRF_TEMP-> ...

//Without S132
float temp;

//   NRF_TEMP->TASKS_START = 1; /** Start the temperature measurement. */
//  NRF_TEMP->EVENTS_DATARDY = 0;
//  temp = nrf_temp_read()/4.0;
//  NRF_TEMP->TASKS_STOP = 1; /** Stop the temperature measurement. */
  
//With S132
 
int32_t  t;
sd_temp_get(&t);
temp = t/4.0;

RE: nrf_temp_read() or sd_temp_get(&t) fault with S132

Jørgen Holmefjord — Wed, 25 Jan 2017 12:49:10 GMT

Hi,

The softdevice function sd_temp_get() is documented in the infocenter.

I tested it using the ble_app_uart example in SDK 12.2 with S132 v3.0.0 softdevice, and it works fine. How do you use it in your application? Did you get any error codes in return when calling the function?

Best regards,

Jørgen