feat: 增加速度环

app/by_utils.h

@@ -3,6 +3,21 @@
 
 #include "at32f413.h"
 
+typedef enum {
+  BY_ERROR   = 0,
+  BY_SUCCESS = !BY_ERROR
+} by_error_status;
+
+typedef enum {
+  T_U8 = 0,
+  T_U16,
+  T_U32,
+  T_S8,
+  T_S16,
+  T_S32,
+  T_F32
+} by_data_type;
+
 int32_t clip_s32(int32_t x, int32_t low, int32_t up);
 
 #endif