diff --git a/embassy-stm32/src/flash/other.rs b/embassy-stm32/src/flash/other.rs
new file mode 100644
index 00000000..c9836d09
--- /dev/null
+++ b/embassy-stm32/src/flash/other.rs
@@ -0,0 +1,7 @@
+pub trait FlashRegion {
+    const BASE: usize;
+    const SIZE: usize;
+    const ERASE_SIZE: usize;
+    const WRITE_SIZE: usize;
+    const ERASE_VALUE: u8;
+}
diff --git a/embassy-stm32/src/lib.rs b/embassy-stm32/src/lib.rs
index eeaa04f6..ddd5c0fd 100644
--- a/embassy-stm32/src/lib.rs
+++ b/embassy-stm32/src/lib.rs
@@ -47,6 +47,13 @@ pub mod crc;
     flash_l0, flash_l1, flash_wl, flash_wb, flash_l4, flash_f3, flash_f4, flash_f7, flash_h7
 ))]
 pub mod flash;
+#[cfg(not(any(
+    flash_l0, flash_l1, flash_wl, flash_wb, flash_l4, flash_f3, flash_f4, flash_f7, flash_h7
+)))]
+pub mod flash {
+    mod other;
+    pub use other::FlashRegion;
+}
 pub mod pwm;
 #[cfg(rng)]
 pub mod rng;