diff --git a/STM32/CM7/Core/Inc/global_state.h b/STM32/CM7/Core/Inc/global_state.h
index e291dfb..cc444c6 100644
--- a/STM32/CM7/Core/Inc/global_state.h
+++ b/STM32/CM7/Core/Inc/global_state.h
@@ -4,12 +4,19 @@
 
 #include <ring_buffer.h>
 typedef enum {
-  SYNC_OK,
-  SYNC_PENDING,
-  SYNC_NOT_OK
+  SYNC_OK = 0,
+  SYNC_PENDING = 1,
+  SYNC_NOT_OK = 2
 } sync_state;
-
+typedef enum {
+  CYCLE_EXHAUST = 0,
+  CYCLE_INTAKE = 1,
+  CYCLE_COMPRESSION = 2,
+  CYCLE_COMBUSTION = 3,
+  CYCLE_UNKNOWN = 4
+} crank_state;
 typedef struct {
+    crank_state cycle;
     sync_state sync;
     ring_buffer_t crank_RB;
     ring_buffer_t cam_RB;