[GitHub] rymanluk commented on a change in pull request #622: nimble: Some fixes for scheduling aux tx/rx

[gi...@git.apache.org]

rymanluk commented on a change in pull request #622: nimble: Some fixes for scheduling aux tx/rx
URL: https://github.com/apache/mynewt-core/pull/622#discussion_r145142858
 
 

 ##########
 File path: hw/drivers/nimble/nrf52/src/ble_phy.c
 ##########
 @@ -918,12 +918,10 @@ ble_phy_rx_start_isr(void)
     ble_hdr->rxinfo.user_data = NULL;
 #endif
 
-    /*
-     * Calculate receive start time.
-     *
-     * XXX: possibly use other routine with remainder!
-     */
-    usecs = NRF_TIMER0->CC[1] - ble_phy_mode_pdu_start_off(g_ble_phy_data.phy_cur_phy_mode);
+    /* Calculate accurate packets start time (with remainder) */
+    usecs = NRF_TIMER0->CC[1];
+    usecs -= ble_phy_mode_pdu_start_off(ble_hdr->rxinfo.phy_mode);
+    usecs -= g_ble_phy_t_rxaddrdelay[ble_hdr->rxinfo.phy_mode];
 
 Review comment:
   imho even so, code in the controller will handle it correctly. 
 
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