Merge pull request #3763 from robot-rover/fix_rp2040_time_driver

rp: Fix time driver hang
embassy-rs · Feb 4, 2025 · fdb9795 · fdb9795
2 parents f663f3b + 930af8e
commit fdb9795
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/embassy-rp/src/time_driver.rs b/embassy-rp/src/time_driver.rs
@@ -86,6 +86,9 @@ impl TimerDriver {
     fn check_alarm(&self) {
         let n = 0;
         critical_section::with(|cs| {
+            // clear the irq
+            TIMER.intr().write(|w| w.set_alarm(n, true));
+
             let alarm = &self.alarms.borrow(cs);
             let timestamp = alarm.timestamp.get();
             if timestamp <= self.now() {
@@ -96,9 +99,6 @@ impl TimerDriver {
                 TIMER.alarm(n).write_value(timestamp as u32);
             }
         });
-
-        // clear the irq
-        TIMER.intr().write(|w| w.set_alarm(n, true));
     }
 
     fn trigger_alarm(&self, cs: CriticalSection) {