Why HardFault after nrf_temp_init(void) ?

[YeLun]

After S110 7.1 ble_stack_init(), any read/write to temperature register cause a HardFault.

Some sentences like:

						nrf_temp_init();     

						NRF_TEMP->TASKS_START = 1;

But it work well, when I run those sentences in MDK debug command line.

Can you give me some hints.

Thanks.

[Stefan Birnir Sverrisson]

Hi

The TEMP module is restricted by the softdevice, see the S110 Softdevice Specification v1.3, table 23. Therefore you must use the sd_temp_get function instead to get the die temperature when the softdevice is enabled.

[Sigurd]

Yes, the TEMP module is restricted in S132. See here for information about what modules that are restricted/blocked when you use the S132 SoftDevice.