diff --git a/mik32_eeprom.py b/drivers/mik32_eeprom.py
similarity index 100%
rename from mik32_eeprom.py
rename to drivers/mik32_eeprom.py
diff --git a/mik32_ram.py b/drivers/mik32_ram.py
similarity index 100%
rename from mik32_ram.py
rename to drivers/mik32_ram.py
diff --git a/mik32_spifi.py b/drivers/mik32_spifi.py
similarity index 100%
rename from mik32_spifi.py
rename to drivers/mik32_spifi.py
diff --git a/tclrpc.py b/drivers/tclrpc.py
similarity index 100%
rename from tclrpc.py
rename to drivers/tclrpc.py
diff --git a/mik32_parsers.py b/mik32_parsers.py
index 03491ea..a583003 100644
--- a/mik32_parsers.py
+++ b/mik32_parsers.py
@@ -113,17 +113,3 @@ def bytes2words(arr: List[int]) -> List[int]:
             words.append(word[0]+2**8*word[1]+2**16*word[2]+2**24*word[3])
             word = []
     return words
-
-def get_content(filename: str) -> List[int]:
-    content: List[int] = []
-
-    if filename.endswith(".bin"):
-        content = parse_bin(filename)
-    elif filename.endswith(".hex"):
-        content = parse_hex(filename)[0]
-    else:
-        raise Exception("Unsupported file format")
-    
-    return content
-
-# parse_hex("mik32-uploader../test-roms/eeprom.hex")
diff --git a/mik32_upload.py b/mik32_upload.py
index 0793458..8880f2d 100644
--- a/mik32_upload.py
+++ b/mik32_upload.py
@@ -1,17 +1,19 @@
 import shlex
-from .tclrpc import OpenOcdTclRpc
 import argparse
 import sys
 import subprocess
-from .mik32_eeprom import *
-from .mik32_spifi import *
-from .mik32_ram import *
-from .mik32_parsers import *
 import os
-from typing import Iterable
+from enum import Enum
+from typing import List, Tuple
+from .drivers.tclrpc import OpenOcdTclRpc
+from .drivers.mik32_eeprom import *
+from .drivers.mik32_spifi import *
+from .drivers.mik32_ram import *
+from .mik32_parsers import *
+from .parsers.parser_hex import *
 
 
-# class bcolors:
+# class bcolors(Enum):
 #     OK = '\033[92m'
 #     WARNING = '\033[93m'
 #     FAIL = '\033[91m'
@@ -19,20 +21,61 @@ from typing import Iterable
 #     BOLD = '\033[1m'
 #     UNDERLINE = '\033[4m'
 
+
 DEFAULT_OPENOCD_EXEC_FILE_PATH = os.path.join("openocd", "bin", "openocd.exe")
-DEFAULT_OPENOCD_SCRIPTS_PATH = os.path.join("openocd", "share", "openocd", "scripts")
+DEFAULT_OPENOCD_SCRIPTS_PATH = os.path.join(
+    "openocd", "share", "openocd", "scripts")
+
+supported_formats = [".hex"]
 
 
 def test_connection():
     output = ""
     with OpenOcdTclRpc() as openocd:
         output = openocd.run(f"capture \"reg\"")
-    
+
     if output == "":
         raise Exception("ERROR: no regs found, check MCU connection")
 
 
-def upload_file(filename: str, boot_source: str = "eeprom", is_resume=True) -> int:
+def read_file(filename: str) -> List[Tuple[int, List[int]]] :
+    segments: List[Tuple[int, List[int]]] = []
+    lines: List[str] = []
+
+    file_name, file_extension = os.path.splitext(filename)
+    if file_extension in supported_formats:
+        with open(filename) as f:
+            lines = f.readlines()
+    elif file_extension == ".bin":
+        with open(filename, "rb") as f:
+            contents = list(f.read())
+            segments[0] = (0, contents)
+    else:
+        raise Exception("Unsupported file format: %s" % (file_extension))
+
+    for line in lines:
+        record: Tuple[RecordType, List[int]]
+        if file_extension == ".hex":
+            record = 
+
+    
+    return segments
+
+
+def get_content(filename: str) -> List[int]:
+    content: List[int] = []
+
+    if filename.endswith(".bin"):
+        content = parse_bin(filename)
+    elif filename.endswith(".hex"):
+        content = parse_hex(filename)[0]
+    else:
+        
+    
+    return content
+
+
+def upload_file(filename: str, boot_source: str = "undefined", is_resume=True) -> int:
     """
     Write ihex or binary file into MIK32 EEPROM or external flash memory
 
@@ -76,13 +119,12 @@ def upload_file(filename: str, boot_source: str = "eeprom", is_resume=True) -> i
         result = spifi_write_file(get_content(filename), is_resume)
     elif boot_source == "ram":
         write_file(filename, is_resume)
-        result = 0 # TODO
+        result = 0  # TODO
     else:
         raise Exception("Unsupported boot source, use eeprom or spifi")
         result = 1
 
     return result
-        
 
 
 def show_file(filename: str, boot_source: str = "eeprom"):
@@ -104,7 +146,7 @@ def createParser():
     parser.add_argument('filepath', nargs='?')
     parser.add_argument('--show-file', action="store_const", const=True)
     parser.add_argument('--no-upload', action="store_const", const=True)
-    parser.add_argument('-b', '--boot-mode', default='eeprom')
+    parser.add_argument('-b', '--boot-mode', default='undefined')
 
     return parser
 
diff --git a/parsers/parser_hex.py b/parsers/parser_hex.py
new file mode 100644
index 0000000..5bab9dd
--- /dev/null
+++ b/parsers/parser_hex.py
@@ -0,0 +1,3 @@
+from parsers import RecordType
+
+def parse(str) -> 
\ No newline at end of file
diff --git a/parsers/parsers.py b/parsers/parsers.py
new file mode 100644
index 0000000..14e2c44
--- /dev/null
+++ b/parsers/parsers.py
@@ -0,0 +1,16 @@
+from enum import Enum
+from typing import List, Tuple
+import parser_hex
+
+
+class RecordType(Enum):
+    DATA = 1
+
+
+def parse_line(line: str, file_extension: str) -> Tuple[RecordType, List[int]]:
+    record: Tuple[RecordType, List[int]]
+
+    if file_extension == ".hex":
+        
+
+    return record
\ No newline at end of file