add changelog and fix rustfmt errors

3 files changed, 21 insertions, 5 deletions

diff --git a/embassy-stm32/CHANGELOG.md b/embassy-stm32/CHANGELOG.md
index 3431848d3..7586861ef 100644
--- a/embassy-stm32/CHANGELOG.md
+++ b/embassy-stm32/CHANGELOG.md
@@ -55,6 +55,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - chore: Updated stm32-metapac and stm32-data dependencies
 - adc: reogranize and cleanup somewhat. require sample_time to be passed on conversion
 - fix: stm32/i2c v2 slave: prevent misaligned reads, error false positives, and incorrect counts of bytes read/written
+- feat: add flash support for c0 family ([#4874](https://github.com/embassy-rs/embassy/pull/4874))
 
 ## 0.4.0 - 2025-08-26
 
diff --git a/embassy-stm32/src/flash/c.rs b/embassy-stm32/src/flash/c.rs
index af3d07ac6..0ad1002b0 100644
--- a/embassy-stm32/src/flash/c.rs
+++ b/embassy-stm32/src/flash/c.rs
@@ -47,8 +47,12 @@ pub(crate) unsafe fn blocking_erase_sector(sector: &FlashSector) -> Result<(), E
     let idx = (sector.start - super::FLASH_BASE as u32) / super::BANK1_REGION.erase_size as u32;
 
     #[cfg(feature = "defmt")]
-    defmt::trace!("STM32C0 Erase: addr=0x{:08x}, idx={}, erase_size={}", sector.start, idx, super::BANK1_REGION.erase_size);
-
+    defmt::trace!(
+        "STM32C0 Erase: addr=0x{:08x}, idx={}, erase_size={}",
+        sector.start,
+        idx,
+        super::BANK1_REGION.erase_size
+    );
 
     wait_busy();
     clear_all_err();
@@ -72,8 +76,13 @@ pub(crate) unsafe fn blocking_erase_sector(sector: &FlashSector) -> Result<(), E
         #[cfg(feature = "defmt")]
         {
             let cr_after = pac::FLASH.cr().read();
-            defmt::trace!("FLASH_CR after: 0x{:08x}, PER={}, PNB={}, STRT={}",
-                         cr_after.0, cr_after.per(), cr_after.pnb(), cr_after.strt());
+            defmt::trace!(
+                "FLASH_CR after: 0x{:08x}, PER={}, PNB={}, STRT={}",
+                cr_after.0,
+                cr_after.per(),
+                cr_after.pnb(),
+                cr_after.strt()
+            );
         }
     });
 
diff --git a/embassy-stm32/src/flash/common.rs b/embassy-stm32/src/flash/common.rs
index 508bb2548..60d00e766 100644
--- a/embassy-stm32/src/flash/common.rs
+++ b/embassy-stm32/src/flash/common.rs
@@ -102,7 +102,13 @@ pub(super) unsafe fn blocking_write(
     }
 
     let mut address = base + offset;
-    trace!("Writing {} bytes at 0x{:x} (base=0x{:x}, offset=0x{:x})", bytes.len(), address, base, offset);
+    trace!(
+        "Writing {} bytes at 0x{:x} (base=0x{:x}, offset=0x{:x})",
+        bytes.len(),
+        address,
+        base,
+        offset
+    );
 
     for chunk in bytes.chunks(WRITE_SIZE) {
         write_chunk(address, chunk)?;