esb: add timer clear after receiving ACK

After receiving an ACK packet, the timer is now stopped and cleared.
This change adds timer cleanup for the DPPI configuration.
For the PPI configuration, the SHUTDOWN task is used.

Ref: NCSDK-36149

Signed-off-by: Marcin Jelinski <[email protected]>

Author: maje-emb

subsys/esb/esb_dppi.c

@@ -142,6 +142,8 @@ void esb_ppi_for_wait_for_ack_set(void)
 
 	nrf_timer_subscribe_set(ESB_NRF_TIMER_INSTANCE, NRF_TIMER_TASK_STOP,
 				radio_address_timer_stop);
+	nrf_timer_subscribe_set(ESB_NRF_TIMER_INSTANCE, NRF_TIMER_TASK_CLEAR,
+				radio_address_timer_stop);
 
 	nrf_radio_subscribe_set(NRF_RADIO, NRF_RADIO_TASK_DISABLE, timer_compare0_radio_disable);
 
@@ -164,6 +166,7 @@ void esb_ppi_for_wait_for_ack_clear(void)
 	nrf_timer_publish_clear(ESB_NRF_TIMER_INSTANCE, NRF_TIMER_EVENT_COMPARE0);
 
 	nrf_timer_subscribe_clear(ESB_NRF_TIMER_INSTANCE, NRF_TIMER_TASK_STOP);
+	nrf_timer_subscribe_clear(ESB_NRF_TIMER_INSTANCE, NRF_TIMER_TASK_CLEAR);
 
 	nrf_radio_subscribe_clear(NRF_RADIO, NRF_RADIO_TASK_DISABLE);
 }