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Dynamic sector erase (#1006)

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* dynamic sector erase

* fix red panda flash

Co-authored-by: Adeeb Shihadeh <adeebshihadeh@gmail.com>
This commit is contained in:
Robbe Derks
2022-08-03 06:58:56 +02:00
committed by GitHub
parent fe3ad834c6
commit 6bdf249d03
3 changed files with 19 additions and 8 deletions
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21
python/__init__.py
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@@ -9,12 +9,13 @@ import traceback
import sys
from functools import wraps
from typing import Optional
from itertools import accumulate
from .dfu import PandaDFU, MCU_TYPE_F2, MCU_TYPE_F4, MCU_TYPE_H7 # pylint: disable=import-error
from .flash_release import flash_release # noqa pylint: disable=import-error
from .update import ensure_st_up_to_date # noqa pylint: disable=import-error
from .serial import PandaSerial # noqa pylint: disable=import-error
from .isotp import isotp_send, isotp_recv # pylint: disable=import-error
from .config import DEFAULT_FW_FN, DEFAULT_H7_FW_FN # noqa pylint: disable=import-error
from .config import DEFAULT_FW_FN, DEFAULT_H7_FW_FN, SECTOR_SIZES_FX, SECTOR_SIZES_H7 # noqa pylint: disable=import-error
__version__ = '0.0.10'
@@ -286,18 +287,26 @@ class Panda:
@staticmethod
def flash_static(handle, code):
def flash_static(handle, code, mcu_type):
assert mcu_type is not None, "must set valid mcu_type to flash"
# confirm flasher is present
fr = handle.controlRead(Panda.REQUEST_IN, 0xb0, 0, 0, 0xc)
assert fr[4:8] == b"\xde\xad\xd0\x0d"
# determine sectors to erase
apps_sectors_cumsum = accumulate(SECTOR_SIZES_H7[1:] if mcu_type == MCU_TYPE_H7 else SECTOR_SIZES_FX[1:])
last_sector = next((i + 1 for i, v in enumerate(apps_sectors_cumsum) if v > len(code)), -1)
assert last_sector >= 1, "Binary too small? No sector to erase."
assert last_sector < 7, "Binary too large! Risk of overwriting provisioning chunk."
# unlock flash
print("flash: unlocking")
handle.controlWrite(Panda.REQUEST_IN, 0xb1, 0, 0, b'')
# erase sectors 1 through 3
print("flash: erasing")
for i in range(1, 4):
# erase sectors
print(f"flash: erasing sectors 1 - {last_sector}")
for i in range(1, last_sector + 1):
handle.controlWrite(Panda.REQUEST_IN, 0xb2, i, 0, b'')
# flash over EP2
@@ -329,7 +338,7 @@ class Panda:
print("flash: bootstub version is " + self.get_version())
# do flash
Panda.flash_static(self._handle, code)
Panda.flash_static(self._handle, code, mcu_type=self._mcu_type)
# reconnect
if reconnect: