WiFi Hang

[David Weibel]

Hi,

I'm seeing the fipy wifi hang in a couple seconds of running the below sample code from the pycom website.

from network import WLAN
import ubinascii
import time

def pack_cb(pack):
    global update
    update = update + 1
    mac = bytearray(6)
    pk = wlan.wifi_packet()
    control = pk.data[0]
    subtype = (0xF0 & control) >> 4
    type = 0x0C & control
    print("Control:{}, subtype:{}, type:{}".format(control, subtype, type))
    if subtype == 4:
        print("subType==4")
        for i in range (0,6):
            mac[i] = pk.data[10 + i]
        print ("Wifi Node with MAC: {}".format(ubinascii.hexlify(mac)))

wlan = WLAN(mode=WLAN.STA, antenna=WLAN.EXT_ANT)
wlan.callback(trigger=WLAN.EVENT_PKT_MGMT, handler=pack_cb)
wlan.promiscuous(True)

while True:
    print("alive")
    sleep(5)

I can tell the whole fipy isn't locked up because the alive prints keep coming out. But wifi completely checks out. Any thoughts how to keep wifi itself going without a hang?