don

.cargo/config.toml

@@ -1,5 +1,8 @@
 [target.'cfg(all(target_arch = "arm", target_os = "none"))']
-runner = "probe-rs run --chip STM32F411VETx"
+# --no-catch-reset: don't trap the reset vector, so pressing the board's NRST
+# button re-runs the firmware instead of ending the session with an Exception.
+# (hardfault catch stays on by default, so panics still produce a backtrace.)
+runner = "probe-rs run --chip STM32F411VETx --no-catch-reset"
 
 rustflags = [
   # LLD (shipped with the Rust toolchain) is used as the default linker