Hi!
I think all fine in my configuration, but not connect on boot, I need to killall -q wpa_supplicant and run /etc/init.d/networking restart to connect.
# /etc/network/interfaces
iface wlan0 inet static
address 192.168.1.200
netmask 255.255.255.0
network 192.168.1.0
broadcast 192.168.1.255
gateway 192.168.1.1
pre-up wpa_supplicant -i wlan0 -c /etc/wpa_supplicant/wpa_supplicant.conf -wB -D <forgot the name>
post-down killall -q wpa_supplicant