If your board doesn't have an integrated ROM monitor, you may not be able transfer your image over a serial or TFTP connection.
You'll have to use some other method instead, such as:
- CompactFlash — copy the image to a CompactFlash card plugged into your host, then plug the card into your board to
access the image.
Or:
- Flash programmer — manually program your flash with an external programmer.
Or:
- JTAG/ICE/emulator — use such a device to program and communicate with your board.
For more information, see the documentation that came with your board.