1 files changed, 29 insertions, 0 deletions
diff --git a/stm/exti.h b/stm/exti.h
new file mode 100644
index 0000000000..f5b11d0496
--- /dev/null
+++ b/stm/exti.h
@@ -0,0 +1,29 @@
+// Vectors 0-15 are for regular pins
+// Vectors 16-22 are for internal sources.
+//
+// Use the following constants for the internal sources:
+
+#define EXTI_PVD_OUTPUT         (16)
+#define EXTI_RTC_ALARM          (17)
+#define EXTI_USB_OTG_FS_WAKEUP  (18)
+#define EXTI_ETH_WAKEUP         (19)
+#define EXTI_USB_OTG_HS_WAKEUP  (20)
+#define EXTI_RTC_TIMESTAMP      (21)
+#define EXTI_RTC_WAKEUP         (22)
+
+#define EXTI_NUM_VECTORS  23
+
+void exti_init_early(void);
+void exti_init(mp_obj_t mod);
+
+uint exti_register(mp_obj_t pin_obj, mp_obj_t mode_obj, mp_obj_t trigger_obj, mp_obj_t callback_obj, mp_obj_t param_obj);
+
+void exti_enable(uint line);
+void exti_disable(uint line);
+void exti_swint(uint line);
+
+typedef struct {
+  mp_obj_t callback;
+  mp_obj_t param;
+} exti_t;
+