change eeprom to a struct

Inc/common.h

@@ -1,6 +1,8 @@
+#include "eeprom.h"
+
 #pragma once
 
-extern uint8_t eepromBuffer[176];
+extern EEprom_t eepromBuffer;
 extern uint16_t TIMER1_MAX_ARR;
 extern uint16_t dshot_frametime_high;
 extern uint16_t dshot_frametime_low;

Mcu/f421/Inc/eeprom.h

@@ -1,5 +1,57 @@
 #include "main.h"
 
+#pragma once
+
+typedef union EEprom_u {
+    struct {
+        uint8_t reserved_0; //0
+        uint8_t eeprom_version; //1
+        uint8_t reserved_1; //2
+        struct {        
+            uint8_t major; //3
+            uint8_t minor; //4
+        } version;
+        char firmware_name[12]; //5-16
+        uint8_t dir_reversed; // 17
+        uint8_t bi_direction; // 18
+        uint8_t use_sine_start; // 19
+        uint8_t comp_pwm; // 20
+        uint8_t variable_pwm; // 21
+        uint8_t stuck_rotor_protection; // 22
+        uint8_t advance_level; // 23
+        uint8_t pwm_frequency; // 24
+        uint8_t startup_power; // 25
+        uint8_t motor_kv; // 26
+        uint8_t motor_poles; // 27
+        uint8_t brake_on_stop; // 28
+        uint8_t stall_protection; // 29
+        uint8_t beep_volume; // 30
+        uint8_t telementry_on_interval; // 31
+        struct {
+            uint8_t low_threshold; // 32
+            uint8_t high_threshold; // 33
+            uint8_t neutral; // 34
+            uint8_t dead_band; // 35
+        } servo;
+        uint8_t low_voltage_cut_off; // 36
+        uint8_t low_cell_volt_cutoff; // 37
+        uint8_t rc_car_reverse; // 38
+        uint8_t use_hall_sensors; // 39
+        uint8_t sine_mode_changeover_thottle_level; // 40
+        uint8_t drag_brake_strength; // 41
+        uint8_t driving_brake_strength; // 42
+        struct {
+            uint8_t temperature; // 43
+            uint8_t current; // 44
+        } limits;
+        uint8_t sine_mode_power; // 45
+        uint8_t input_type; // 46
+        uint8_t reserved_2[5]; //47-51
+        uint8_t tune[124];
+    };
+    uint8_t buffer[176];
+} EEprom_t;
+
 // void save_to_flash(uint8_t *data);
 // void read_flash(uint8_t* data, uint32_t address);
 // void save_to_flash_bin(uint8_t *data, int length, uint32_t add);