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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.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("""\
FAT filesystem appears to be corrupted. If you had important data there, you
may want to make a flash snapshot to try to recover it. Otherwise, perform
factory reprogramming of MicroPython firmware (completely erase flash, followed
by firmware programming).
""")
time.sleep(3)
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