diff --git a/src/main.rs b/src/main.rs
index 608e87d..4d2cfea 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -62,13 +62,11 @@ use monotron_synth::*;
 use tm4c123x_hal::interrupt;
 use cortex_m_rt::{entry, exception};
 
-const VERSION: &'static str = env!("CARGO_PKG_VERSION");
-const GIT_DESCRIBE: &'static str = env!("GIT_DESCRIBE");
 const ISR_LATENCY: u32 = 94;
 
-// Must come first
 static mut APPLICATION_RAM: [u8; 24 * 1024] = [0u8; 24 * 1024];
-
+static VERSION: &'static str = env!("CARGO_PKG_VERSION");
+static GIT_DESCRIBE: &'static str = env!("GIT_DESCRIBE");
 static mut G_SYNTH: Synth = Synth::new(80_000_000 / 2112);
 static mut FRAMEBUFFER: fb::FrameBuffer<VideoHardware> = fb::FrameBuffer::new();
 
diff --git a/src/rust_logo.rs b/src/rust_logo.rs
index 31abfca..46de71d 100644
--- a/src/rust_logo.rs
+++ b/src/rust_logo.rs
@@ -1,4 +1,4 @@
-pub const RUST_LOGO_DATA: [u8; 384 * 288 / 8] = [
+pub static RUST_LOGO_DATA: [u8; 384 * 288 / 8] = [
     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
diff --git a/src/ui.rs b/src/ui.rs
index 865dc48..8365679 100644
--- a/src/ui.rs
+++ b/src/ui.rs
@@ -7,62 +7,62 @@ use menu;
 pub(crate) type Menu<'a> = menu::Menu<'a, Context>;
 pub(crate) type Item<'a> = menu::Item<'a, Context>;
 
-const ITEM_CLEAR: Item = Item {
+static ITEM_CLEAR: Item = Item {
     item_type: menu::ItemType::Callback(item_clear),
     command: "clear",
     help: Some("Resets the display."),
 };
 
-const ITEM_PEEK: Item = Item {
+static ITEM_PEEK: Item = Item {
     item_type: menu::ItemType::Callback(item_peek),
     command: "peek",
     help: Some("<addr> - Read a register."),
 };
 
-const ITEM_POKE: Item = Item {
+static ITEM_POKE: Item = Item {
     item_type: menu::ItemType::Callback(item_poke),
     command: "poke",
     help: Some("<addr> <value> - Write a register."),
 };
 
-const ITEM_DUMP: Item = Item {
+static ITEM_DUMP: Item = Item {
     item_type: menu::ItemType::Callback(item_dump),
     command: "dump",
     help: Some("<addr> <bytes> - Dump RAM/ROM."),
 };
 
-const ITEM_LOAD: Item = Item {
+static ITEM_LOAD: Item = Item {
     item_type: menu::ItemType::Callback(item_load_file),
     command: "load",
     help: Some("<len> - Load program from UART."),
 };
 
-const ITEM_DEBUG: Item = Item {
+static ITEM_DEBUG: Item = Item {
     item_type: menu::ItemType::Callback(item_debug_info),
     command: "debug",
     help: Some("Show some debug info."),
 };
 
-const ITEM_RUN: Item = Item {
+static ITEM_RUN: Item = Item {
     item_type: menu::ItemType::Callback(item_run_program),
     command: "run",
     help: Some("Run loaded program."),
 };
 
-const ITEM_BEEP: Item = Item {
+static ITEM_BEEP: Item = Item {
     item_type: menu::ItemType::Callback(item_beep),
     command: "beep",
     help: Some("Make a beep."),
 };
 
-const ITEM_DEMOS: Item = Item {
+static ITEM_DEMOS: Item = Item {
     item_type: menu::ItemType::Menu(&demos::DEMO_MENU),
     command: "demos",
     help: Some("Enter demo menu."),
 };
 
 
-pub(crate) const ROOT_MENU: Menu = Menu {
+pub(crate) static ROOT_MENU: Menu = Menu {
     label: "root",
     items: &[
         &ITEM_CLEAR,