Improved config memory

firmware/src/logic/cfg_mem.h

@@ -11,7 +11,7 @@ namespace logic {
 
 class CfgMemory
 {
-	protected:	
+	protected:
 	uint8_t mem_btn_force;
 	uint8_t mem_bmode;
 	uint8_t mem_pot_mode;
@@ -27,6 +27,7 @@ class CfgMemory
 	CfgMemory(void);
 	~CfgMemory(void);
 	
+	uint8_t cfg_good;
 	uint8_t btn_force;
 	uint8_t bmode;
 	uint8_t pot_mode;
@@ -42,6 +43,7 @@ class CfgMemory
 	void save(void);
 	void save_all(void);
 	void restore(void);
+	uint8_t checksum(void);
 };
 
 /**** Public function declarations ****/