import os
import enum
from typing import NamedTuple
BASEDIR = os.path.join(os.path.dirname(os.path.realpath(__file__)), "../")
FW_PATH = os.path.join(BASEDIR, "board/obj/")
USBPACKET_MAX_SIZE = 0x40
[docs]
class McuConfig(NamedTuple):
mcu: str
mcu_idcode: int
sector_sizes: list[int]
sector_count: int # total sector count, used for MCU identification in DFU mode
uid_address: int
block_size: int
serial_number_address: int
app_address: int
app_fn: str
bootstub_address: int
bootstub_fn: str
[docs]
def sector_address(self, i):
# assume bootstub is in sector 0
return self.bootstub_address + sum(self.sector_sizes[:i])
F4Config = McuConfig(
"STM32F4",
0x463,
[0x4000 for _ in range(4)] + [0x10000] + [0x20000 for _ in range(11)],
16,
0x1FFF7A10,
0x800,
0x1FFF79C0,
0x8004000,
"panda.bin.signed",
0x8000000,
"bootstub.panda.bin",
)
H7Config = McuConfig(
"STM32H7",
0x483,
[0x20000 for _ in range(7)],
8,
0x1FF1E800,
0x400,
# there is an 8th sector, but we use that for the provisioning chunk, so don't program over that!
0x080FFFC0,
0x8020000,
"panda_h7.bin.signed",
0x8000000,
"bootstub.panda_h7.bin",
)
[docs]
@enum.unique
class McuType(enum.Enum):
F4 = F4Config
H7 = H7Config
@property
def config(self):
return self.value
MCU_TYPE_BY_IDCODE = {m.config.mcu_idcode: m for m in McuType}