how to change nrf 52832 WDT timeout

[HDU-rib]

SDK： nRF5_SDK_11.0.0
Softdevice： s132_nrf52_2.0.0_softdevice

I set the WDT timeout in the application is 5s, when entering the BootLoader set the WDT time is 10s, how should I set? I try to set this up:
NRF_WDT-> TASKS_START = 0;
NRF_WDT-> CRV = 5 * 32768;
NRF_WDT-> RR [0] = 0x6E524635UL;
NRF_WDT-> TASKS_START = 1;
But found timeout time has not changed.

[MartinBL]

Have you tried to update all the reload registers. Reload Criteria:

The watchdog has eight separate reload request registers, which shall be used to request the watchdog to reload its counter with the value specified in the CRV register. To reload the watchdog counter, the special value 0x6E524635 needs to be written to all enabled reload registers.