working dynamically loaded app

kernel/src/display.rs

@@ -9,6 +9,7 @@ use embassy_time::{Delay, Timer};
 use embedded_graphics::{
     draw_target::DrawTarget,
     pixelcolor::{Rgb565, RgbColor},
+    prelude::Dimensions,
 };
 use embedded_hal_bus::spi::ExclusiveDevice;
 use st7365p_lcd::ST7365P;
@@ -48,8 +49,11 @@ pub async fn init_display(
     display
 }
 
-pub async fn clear_fb() {
-    unsafe { FRAMEBUFFER.clear(Rgb565::BLACK).unwrap() }
+pub fn clear_fb() {
+    let bounds = unsafe { FRAMEBUFFER.bounding_box() };
+    unsafe {
+        let _ = FRAMEBUFFER.fill_solid(&bounds, Rgb565::BLACK);
+    }
 }
 
 pub async fn display_handler(mut display: DISPLAY) {

kernel/src/framebuffer.rs

@@ -29,7 +29,7 @@ static mut BUFFER: [u16; SIZE] = [0; SIZE];
 static mut DIRTY_TILES: LazyLock<Vec<AtomicBool, TILE_COUNT>> = LazyLock::new(|| {
     let mut tiles = Vec::new();
     for _ in 0..TILE_COUNT {
-        tiles.push(AtomicBool::new(true));
+        tiles.push(AtomicBool::new(true)).unwrap();
     }
     tiles
 });

kernel/src/main.rs

@@ -143,7 +143,7 @@ async fn userland_task() {
             *state = TaskState::Kernel;
         }
 
-        // clear_fb().await; // blocks future exec?
+        // clear_fb();
 
         defmt::info!("Executing Binary");
         entry().await;