X-Git-Url: http://git.code-monkey.de/?p=gps-watch.git;a=blobdiff_plain;f=src%2Fapplication%2Fmain.rs;h=f1aaafe40b1a5e0bc7273f3231a68f3b331c6eda;hp=74f199906853468fd5c6ac22fd41f25bc333480d;hb=c14bb6b5cfbfdc40c7e5d981645604811041b640;hpb=45b7bcb737ad4bedf4f93548869f5037a6a2c1c2

diff --git a/src/application/main.rs b/src/application/main.rs
index 74f1999..f1aaafe 100644
--- a/src/application/main.rs
+++ b/src/application/main.rs
@@ -128,12 +128,22 @@ pub unsafe extern "C" fn _start() -> ! {
 
     let mut gps = gps::Gps::new();
 
+    let mut gps_has_fix = false;
+    let mut gps_has_fix_ticks = 0;
+
     let mut heart_icon_timer = Timer::new(1000);
 
     loop {
         let mut tap = gps::TimeAndPos::new();
 
         while gps.update(&mut tap) {
+            gps_has_fix = true;
+            gps_has_fix_ticks = systick::now();
+        }
+
+        // Did GPS fix information expire?
+        if gps_has_fix && systick::has_timeout_ms(gps_has_fix_ticks, 1500) {
+            gps_has_fix = false;
         }
 
         heart_icon_timer.update(|state| {