Diff: targets/TARGET_NUVOTON/TARGET_M451/lp_ticker.c

Revision:

153:fa9ff456f731

Parent:

149:156823d33999

Child:

160:d5399cc887bb

--- a/targets/TARGET_NUVOTON/TARGET_M451/lp_ticker.c	Thu Dec 15 11:48:27 2016 +0000
+++ b/targets/TARGET_NUVOTON/TARGET_M451/lp_ticker.c	Tue Dec 20 17:27:56 2016 +0000
@@ -95,11 +95,14 @@
     TIMER_EnableInt((TIMER_T *) NU_MODBASE(timer2_modinit.modname));
     TIMER_EnableWakeup((TIMER_T *) NU_MODBASE(timer2_modinit.modname));
     
-    // Schedule wakeup to match semantics of lp_ticker_get_compare_match()
-    lp_ticker_set_interrupt(wakeup_tick);
+    // NOTE: TIMER_Start() first and then lp_ticker_set_interrupt(); otherwise, we may get stuck in lp_ticker_read() because
+    //       timer is not running.
     
     // Start timer
     TIMER_Start((TIMER_T *) NU_MODBASE(timer2_modinit.modname));
+    
+    // Schedule wakeup to match semantics of lp_ticker_get_compare_match()
+    lp_ticker_set_interrupt(wakeup_tick);
 }
 
 timestamp_t lp_ticker_read()