I am triyng to setup openWRT Backfire in my DIR-320 and get troubles at last stage: device not responding.

svn co svn://svn.openwrt.org/openwrt/branches/backfire dir320
cd dir320
./scripts/feeds update -a && ./scripts/feeds install -a
make prereq && make tools/install && make toolchain/install
make menuconfig

      Target System   ---> <*> Broadcom BCM947xx/953xx
      Image configuration  ---> <*> LAN IP Address ---> 192.168.45.1
      Kernel modules  ---> <*> Filesystems  ---> <*> kmod-fs-ext3
      Kernel modules  ---> <*> USB Support  ---> <*> kmod-usb-core
      Kernel modules  ---> <*> USB Support  ---> <*> kmod-usb-ohci
      Kernel modules  ---> <*> USB Support  ---> <*> kmod-usb-storage
      Kernel modules  ---> <*> USB Support  ---> <*> kmod-usb2
      Administration --> webif ---> <*> webif-applications
      Utilities  --->  filemanager  ---> <*> mc

make kernel_menuconfig

        Device Drivers  ---> <*> Memory Technology Device (MTD) support  ---> RAM/ROM/Flash chip drivers  ---> [*] Flash chip driver advanced configuration options --> [*] Specific CFI Flash geometry selection --> [*] Support  8-bit buswidth
        Device Drivers  ---> <*> Memory Technology Device (MTD) support  ---> RAM/ROM/Flash chip drivers  ---> [*] Flash chip driver advanced configuration options --> [*] Specific CFI Flash geometry selection --> [*] Support  16-bit buswidth

//and some other's like mysql, php as Module
make V=99

i got file ./bin/brcm47xx/openwrt-brcm47xx-squashfs.trx, renamed to firmware.bin and flash device (script like here http://dipcore.com/?p=117)

*** Start Flashing ****
???????? ????????: 2560000 ???? ?? 4 ???., 640000 ????/?

But after that, i got no ping to 192.168.45.1, 192.168.0.1, 192.168.1.1 (IP at PC changing to match mask)
That's wrong ?