cbeighley/piksi_firmware — pull request #1 by njoubert (2014-04-10 00:39:52+00:00)
Title: BOOTLOADER BUGFIX: USART electrical coupling happens if there is no PULL...

...-UP resistor. Without this, a bootloader bug manifests itself as a sent handshake being received on the same UART and trappedin the receive_handshake_callback