diff options
| -rw-r--r-- | ports/stm32/boards/LEGO_HUB_NO6/appupdate.py | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/ports/stm32/boards/LEGO_HUB_NO6/appupdate.py b/ports/stm32/boards/LEGO_HUB_NO6/appupdate.py index 0927f1611..57b24d3f2 100644 --- a/ports/stm32/boards/LEGO_HUB_NO6/appupdate.py +++ b/ports/stm32/boards/LEGO_HUB_NO6/appupdate.py @@ -2,13 +2,20 @@ # MIT license; Copyright (c) 2022 Damien P. George from micropython import const -import struct, machine, fwupdate, spiflash +import struct, machine, fwupdate, spiflash, pyb + +_IOCTL_BLOCK_COUNT = const(4) +_IOCTL_BLOCK_SIZE = const(5) _SPIFLASH_UPDATE_KEY_ADDR = const(1020 * 1024) _SPIFLASH_UPDATE_KEY_VALUE = const(0x12345678) _FILESYSTEM_ADDR = const(0x8000_0000 + 1024 * 1024) -_FILESYSTEM_LEN = const(31 * 1024 * 1024) + +# Roundabout way to get actual filesystem size from config. +# This takes into account the 1M "reserved" section of the flash memory. +flash = pyb.Flash(start=0) +_FILESYSTEM_LEN = flash.ioctl(_IOCTL_BLOCK_COUNT, None) * flash.ioctl(_IOCTL_BLOCK_SIZE, None) def update_app(filename): @@ -30,6 +37,8 @@ def update_app(filename): baudrate=50_000_000, ) cs = machine.Pin(machine.Pin.board.FLASH_NSS, machine.Pin.OUT, value=1) + + # We can't use pyb.Flash() because we need to write to the "reserved" 1M area. flash = spiflash.SPIFlash(spi, cs) # Write the update key and elements to the SPI flash. |