import uos import network from flashbdev import bdev def wifi(): import ubinascii ap_if = network.WLAN(network.AP_IF) essid = b"MicroPython-%s" % ubinascii.hexlify(ap_if.config("mac")[-3:]) ap_if.config(essid=essid, authmode=network.AUTH_WPA_WPA2_PSK, password=b"micropythoN") def check_bootsec(): buf = bytearray(bdev.SEC_SIZE) bdev.readblocks(0, buf) empty = True for b in buf: if b != 0xFF: empty = False break if empty: return True fs_corrupted() def fs_corrupted(): import time while 1: print( """\ The filesystem starting at sector %d with size %d sectors looks corrupt. You may want to make a flash snapshot and try to recover it. Otherwise, format it with uos.VfsLfs2.mkfs(bdev), or completely erase the flash and reprogram MicroPython. """ % (bdev.start_sec, bdev.blocks) ) time.sleep(3) def setup(): check_bootsec() print("Performing initial setup") wifi() uos.VfsLfs2.mkfs(bdev) vfs = uos.VfsLfs2(bdev) uos.mount(vfs, "/") with open("boot.py", "w") as f: f.write( """\ # This file is executed on every boot (including wake-boot from deepsleep) #import esp #esp.osdebug(None) import uos, machine #uos.dupterm(None, 1) # disable REPL on UART(0) import gc #import webrepl #webrepl.start() gc.collect() """ ) return vfs