Add short document for running the NxWM demo

configs/sama5d4-ek/README.txt

@@ -4140,10 +4140,17 @@ Configurations
             new one, you should see the .WAV files on the SD card in the lis
             box.
 
-       Currently the list box is not scollable.  So you will be limited to
+       Things still to do:
-       the number .WAV files that will fit in the existing list box (a
+
-       scrollable list box class exists, but has not been integrated into
+         a. Currently the list box is not scrollable.  So you will be
-       the media play demo).
+            limited to the number .WAV files that will fit in the existing
+            list box (a scrollable list box class exists, but has not been
+            integrated into the media play demo).
+
+         b. Although the lower level NxPlayer does support them, there are
+            no controls at the GUI for balance or tone/equalization.
+
+         c. There is no visual indication of play status or end of playing.
 
    STATUS:
        See the To-Do list below
@@ -4259,3 +4266,6 @@ To-Do List
    for the PWM and the Timer/Counter drivers.  These drivers use the
    BOARD_MCK_FREQUENCY definition in more complex ways and will require some
    minor redesign and re-testing before they can be available.
+
+5) Board-related I2C issues have prevented integration of the WM8904 audio
+   decoder.  So the NxWM Media Player demo cannot produce sounds.

configs/sama5d4-ek/RunningNxWM.txt

@@ -0,0 +1,121 @@
+Simplified instructions for Running the NxWM Demo:
+
+Prequisites:
+===========
+
+1. SAMA5D4-MB Rev. C board and power supply
+2. TM7000 LCD panel
+3. RS-232 NUL modem cable
+4. Ethernet cross-over cable
+5. USB "Boot" Keyboard
+6. One each of a microSD card and a full size SD card.  These should
+   be older style SD or SDHC cards.  Some of the newest very high
+   capacity cards will not work.
+7. The file dramboot.bin which is the NuttX boot program.  It runs
+   from SRAM and will load the NuttX HEX binary from serial into
+   DRAM.
+8. The NuttX HEX binary, nuttx.hex.
+
+References:
+==========
+
+See the README.txt for much more detailed, technical information.
+
+Setup:
+=====
+
+1. Make sure that the you a terminal like TeraTerm connected to the DB-9
+   and configured to work at 11520 8N1.
+
+2. You should also connect a USB keyboard and the TM7000 LCD to the
+   SAMA5D4-MB Rev C. Note only USB "Boot" keyboards are supported.
+
+3. The binary has networking enabled.  The network is configured to
+   work in my test environment so it does not use DHCP, rather the board
+   uses the fixed IP address of 10.0.0.2.  It expects the host PC to
+   have the address 10.0.0.1.
+
+   For testing, usually use a PC with two networks (one configured at
+   115200 8N1) and an Ethernet crossover cable.
+
+4. A full size SD card with some sample .WAV files may be inserted in
+   HSMCI0 slot.  These files will be accessed by the Media Player demo.
+
+If you do not connect a network to the board, the consequence will be an
+extremely slow start up time.  Ideally, network bring-up should occur on
+a separate thread so that it does not interfere with the main application.
+If you have the network connected, the start up will be quick.  If there
+is no network connected, it could take a long time to start (perhaps a
+minute?).  The delay is the time before the Ethernet driver decides to
+fail the attempt to negotiate the link speed.
+
+Starting the Demo:
+=================
+
+1. Copy dramboot.bin to a microSD card as boot.bin
+
+2. Inserted the microSD card in the HSMCI1 slot.
+
+3. Power cycle the board, you should see:
+
+   RomBOOT
+   Send Intel HEX file now
+
+4. Send the NuttX file from the terminal.  If you use TeraTerm, this is in
+   the "Files" menu as "Send file ..."
+
+5. When the file download completes, NuttX will start.
+
+Running the Demo:
+================
+
+When NuttX first starts, you will need to perform a touchscreen calibration:
+
+1. Touch the circular when you see the "Touch" or "Again" messages.
+
+2. Release the touch when you see the "OK" message.
+
+There are four points to be touched and the software will expect you to
+touch each position twice.
+
+There is a NuttX configuration option that will allow you to save this
+calibration file to FLASH or a file, but that option is not enabled in
+this configuration.  As you result, you have to do this calibration on
+each boot.
+
+After that the Demo will start.  The opening screen will show a taskbar
+and tray to the left and the background with the NuttX logo.
+
+Touching the triange button in the taskbar will bring up the Start Window.
+The start window holds icons for each installed application.  For this demo
+the following icons will be visible:
+
+1. Scales: This will perform touchscreen calibration again.
+
+2. NxConsole.  This is will bring up a graphics terminal running the
+   NuttShell (NSH).  You interact with NSH using the attached USB
+   keyboard.
+
+3. Calculator.  A simple HEX calculator
+
+4. Media Player.  This brings up the media player GUI.  There is a list
+   box that shows all of the .WAV fails from the SD card that are available.
+   Touching the file name selects it.  There are also controls to play,
+   pause, fast forward, rewind, and adjust the volume.
+
+   Unfortunately in this version, the WM8904 audio CODEC is stubbed out so
+   you will not actually be able to heard any of the .WAV files that you 
+
+Telnet access:
+==============
+
+For better access to NSH, you can also Telnet to the target at address 10.0.0.2
+
+
+
+
+
+
+
+
+