From f0027c9fe017eb2d12e6cb8294181d3e2dd8a5f0 Mon Sep 17 00:00:00 2001
From: chemicstry <chemicstry@gmail.com>
Date: Thu, 14 Jul 2022 21:21:46 +0300
Subject: [PATCH] Require erase address to be aligned to page size

---
 embassy-stm32/src/flash/mod.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/embassy-stm32/src/flash/mod.rs b/embassy-stm32/src/flash/mod.rs
index 59ca59f65..2047f70e1 100644
--- a/embassy-stm32/src/flash/mod.rs
+++ b/embassy-stm32/src/flash/mod.rs
@@ -72,7 +72,7 @@ impl<'d> Flash<'d> {
         if to < from || to as usize > FLASH_END {
             return Err(Error::Size);
         }
-        if ((to - from) as usize % ERASE_SIZE) != 0 {
+        if (from as usize % ERASE_SIZE) != 0 || (to as usize % ERASE_SIZE) != 0 {
             return Err(Error::Unaligned);
         }