[riot-notifications] [RIOT-OS/RIOT] cpu/nrf5x: enhance external HF clock source handling to allow for substantial energy savings (#15804)

Hauke Petersen notifications at github.com
Thu Jan 21 08:59:32 CET 2021

@haukepetersen commented on this pull request.

> @@ -401,6 +402,11 @@ static int nrfmin_init(netdev_t *dev)
         my_addr ^= cpuid[i] << (8 * (i & 0x01));
+    /* the radio need the external HF clock source to be enabled */
+    /* @todo    add proper handling to release the clock whenever the radio is
+     *          idle */
+    clock_hfxo_request();

I actually left this out intentionally for a follow up PR, as this would extend the testing scope quite significantly for this PR. Same for the 802154 driver, but there the vantage point seemed a little more obvious to me. But if you volunteer to test this, I can do it :-)

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