Release 260111

panda/python/constants.py

@@ -0,0 +1,65 @@
+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
+
+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
+
+  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",
+)
+
+@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}