micropython/ports/samd/modules/_boot.py

import gc
import uos
import samd

samd.Flash.flash_init()
bdev = samd.Flash()

# Try to mount the filesystem, and format the flash if it doesn't exist.
fs_type = uos.VfsLfs2 if hasattr(uos, "VfsLfs2") else uos.VfsLfs1

try:
    vfs = fs_type(bdev)
except:
    fs_type.mkfs(bdev)
    vfs = fs_type(bdev)
uos.mount(vfs, "/")

gc.collect()
del uos, vfs, gc
samd: Integrate latest asf4, add help, more time funcs and uPy features. - Makefile: update to use new ASF4 files, support frozen manifest, and include source files in upcoming commits - boards/manifest.py: add files to freeze - boards/samd51p19a.ld: add linker script for this MCU - help.c: add custom help text - main.c: execute _boot.py, boot.py and main.py on start-up - modules/_boot.py: startup file to freeze - modutime.c: add gmtime, localtime, mktime, time functions - mpconfigport.h: enabled more features for sys and io and modules - mphalport.h: add mp_hal_pin_xxx macros - mphalport.c: add mp_hal_stdio_poll 2021-05-20 16:30:08 +08:00			`import gc`
			`import uos`
			`import samd`

			`samd.Flash.flash_init()`
			`bdev = samd.Flash()`

			`# Try to mount the filesystem, and format the flash if it doesn't exist.`
samd/mcu: Use lf2s for SAMD51 and lfs1 for SAMD21. Using lfs1 gives a smaller code, but lfs2 has more features. 2022-07-10 17:55:56 +08:00			`fs_type = uos.VfsLfs2 if hasattr(uos, "VfsLfs2") else uos.VfsLfs1`

samd: Integrate latest asf4, add help, more time funcs and uPy features. - Makefile: update to use new ASF4 files, support frozen manifest, and include source files in upcoming commits - boards/manifest.py: add files to freeze - boards/samd51p19a.ld: add linker script for this MCU - help.c: add custom help text - main.c: execute _boot.py, boot.py and main.py on start-up - modules/_boot.py: startup file to freeze - modutime.c: add gmtime, localtime, mktime, time functions - mpconfigport.h: enabled more features for sys and io and modules - mphalport.h: add mp_hal_pin_xxx macros - mphalport.c: add mp_hal_stdio_poll 2021-05-20 16:30:08 +08:00			`try:`
samd/mcu: Use lf2s for SAMD51 and lfs1 for SAMD21. Using lfs1 gives a smaller code, but lfs2 has more features. 2022-07-10 17:55:56 +08:00			`vfs = fs_type(bdev)`
samd: Integrate latest asf4, add help, more time funcs and uPy features. - Makefile: update to use new ASF4 files, support frozen manifest, and include source files in upcoming commits - boards/manifest.py: add files to freeze - boards/samd51p19a.ld: add linker script for this MCU - help.c: add custom help text - main.c: execute _boot.py, boot.py and main.py on start-up - modules/_boot.py: startup file to freeze - modutime.c: add gmtime, localtime, mktime, time functions - mpconfigport.h: enabled more features for sys and io and modules - mphalport.h: add mp_hal_pin_xxx macros - mphalport.c: add mp_hal_stdio_poll 2021-05-20 16:30:08 +08:00			`except:`
samd/mcu: Use lf2s for SAMD51 and lfs1 for SAMD21. Using lfs1 gives a smaller code, but lfs2 has more features. 2022-07-10 17:55:56 +08:00			`fs_type.mkfs(bdev)`
			`vfs = fs_type(bdev)`
samd: Integrate latest asf4, add help, more time funcs and uPy features. - Makefile: update to use new ASF4 files, support frozen manifest, and include source files in upcoming commits - boards/manifest.py: add files to freeze - boards/samd51p19a.ld: add linker script for this MCU - help.c: add custom help text - main.c: execute _boot.py, boot.py and main.py on start-up - modules/_boot.py: startup file to freeze - modutime.c: add gmtime, localtime, mktime, time functions - mpconfigport.h: enabled more features for sys and io and modules - mphalport.h: add mp_hal_pin_xxx macros - mphalport.c: add mp_hal_stdio_poll 2021-05-20 16:30:08 +08:00			`uos.mount(vfs, "/")`

			`gc.collect()`
			`del uos, vfs, gc`