Update dotstar with interrupts disabled.

Output is more solid now, but still flickers badly with heavy serial.

1 files changed, 10 insertions, 6 deletions

diff --git a/app/src/main.rs b/app/src/main.rs
index d091a9e..ded4dac 100755
--- a/app/src/main.rs
+++ b/app/src/main.rs
@@ -123,9 +123,11 @@ fn main() -> ! {
 
         let mut last_tick = 0;
         loop {
-            dotstar
-                .write(black.iter().cloned())
-                .expect("turning off dotstar");
+            cortex_m::interrupt::free(|_cs| {
+                dotstar
+                    .write(black.iter().cloned())
+                    .expect("turning off dotstar");
+            });
 
             let tick = rtc::millis();
             if tick >= last_tick + 1_024 {
@@ -135,9 +137,11 @@ fn main() -> ! {
 
             usb_host.task();
 
-            dotstar
-                .write(blue.iter().cloned())
-                .expect("turning on dotstar");
+            cortex_m::interrupt::free(|_cs| {
+                dotstar
+                    .write(blue.iter().cloned())
+                    .expect("turning on dotstar");
+            });
             wfi();
         }
     });