diff --git a/qemu/run-sbl.sh b/qemu/run-sbl.sh
index 1925516..ae6c5d6 100755
--- a/qemu/run-sbl.sh
+++ b/qemu/run-sbl.sh
@@ -13,6 +13,13 @@ if [ ! -f "$IMG" ]; then
   exit 1
 fi
 shift 2>/dev/null || true
+# timeout для тестовых прогонов (0 = без ограничения)
+T=${T:-15}
+if [ "$T" != "0" ]; then
+  exec timeout "$T" "$QEMU" -M saimaa,sbl1="fw/img/patch/img0_${B}.elf",sblmain=0x802f63f \
+    -m 512 -display none -monitor none -serial file:uart.log \
+    -drive file="$IMG",if=sd,format=raw "$@" 2>&1
+fi
 exec "$QEMU" -M saimaa,sbl1="fw/img/patch/img0_${B}.elf",sblmain=0x802f63f \
   -m 512 -display none -monitor none -serial file:uart.log \
   -drive file="$IMG",if=sd,format=raw "$@" 2>&1