Ptolemy Group External | Main / OSXYosemiteUsers-PleaseRead

For OSX - Yosemite, it is not possible to program by drag and drop as the mbed board is mounted as a read-only device. A work around solution is to use an Automator. Steps to Create the Automator: 1.Open built-in MAC application, Automator. 2. Selection Application. 3. On the left side, create Run AppleScript action. 4. Insert following as the AppleScript:

    on run {input, parameters}

	do shell script "mount -u -w -o sync /Volumes/MBED" with administrator privileges

	set mbedFile to (input as text)

	do shell script "cp " & quoted form of POSIX path of mbedFile & " /Volumes/MBED"
    end run

5. Save the application to desktop. Drag .bin files onto the Automator's icon and let it go. It'll automatically run. It will ask for your password (because of the sudo command) and will remount MBED and copy the file you dragged in. You'll get the same prompt saying that OS X can't repair MBED, and an additional one saying it wasn't ejected properly. Ignore these. After doing that, just hit the reset button on the MBED and the program should run.