can load & reload programs

kernel/src/ui.rs

@@ -3,6 +3,7 @@ use crate::{
 };
 use alloc::{str::FromStr, string::String, vec::Vec};
 use embassy_sync::{blocking_mutex::raw::CriticalSectionRawMutex, mutex::Mutex};
+use embassy_time::Timer;
 use embedded_graphics::{
     Drawable,
     mono_font::{MonoTextStyle, ascii::FONT_9X15},
@@ -55,6 +56,8 @@ pub async fn ui_handler() {
             clear_selection().await;
             draw_selection().await;
         }
+
+        Timer::after_millis(50).await;
     }
 }
 
@@ -146,6 +149,10 @@ impl SelectionList {
         }
     }
 
+    pub fn set_changed(&mut self, changed: bool) {
+        self.changed = changed
+    }
+
     pub fn update_selections(&mut self, selections: Vec<FileName>) {
         self.selections = selections;
         self.changed = true;