dynamic sector erasing

budney · Jul 26, 2022 · fce1215 · fce1215
1 parent 8ff3ff2
commit fce1215
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/python/__init__.py b/python/__init__.py
@@ -7,6 +7,7 @@
 import time
 import traceback
 import sys
+import math
 from functools import wraps
 from typing import Optional
 from .dfu import PandaDFU, MCU_TYPE_F2, MCU_TYPE_F4, MCU_TYPE_H7  # pylint: disable=import-error
@@ -304,8 +305,9 @@ def flash_static(handle, code):
     handle.controlWrite(Panda.REQUEST_IN, 0xb1, 0, 0, b'')
 
     # erase sectors 1 through 3
-    print("flash: erasing")
-    for i in range(1, 4):
+    num_sectors = math.ceil(len(code) / 0x4000)
+    print(f"flash: erasing {num_sectors} sectors")
+    for i in range(1, num_sectors + 1):
       handle.controlWrite(Panda.REQUEST_IN, 0xb2, i, 0, b'')
 
     # flash over EP2