Updated README.txt files

4 files changed, 120 insertions, 55 deletions

diff --git a/nuttx/Documentation/README.html b/nuttx/Documentation/README.html
index bbf927ad5..bf1a205a5 100644
--- a/nuttx/Documentation/README.html
+++ b/nuttx/Documentation/README.html
@@ -92,6 +92,8 @@
  |   |   |   `- <a href="http://sourceforge.net/p/nuttx/git/ci/master/tree/nuttx/configs/ez80f910200zco/README.txt"><b><i>README.txt</i></b></a>
  |   |   |- fire-stm32v2/
  |   |   |   `- <a href="http://sourceforge.net/p/nuttx/git/ci/master/tree/nuttx/configs/fire-stm32v2/README.txt"><b><i>README.txt</i></b></a>
+ |   |   |- galileo/
+ |   |   |   `- <a href="http://sourceforge.net/p/nuttx/git/ci/master/tree/nuttx/configs/galileo/README.txt"><b><i>README.txt</i></b></a>
  |   |   |- freedom-kl25z/
  |   |   |   `- <a href="http://sourceforge.net/p/nuttx/git/ci/master/tree/nuttx/configs/freedom-kl25z/README.txt"><b><i>README.txt</i></b></a>
  |   |   |- hymini-stm32v/
@@ -123,6 +125,8 @@
  |   |   |   `- <a href="http://sourceforge.net/p/nuttx/git/ci/master/tree/nuttx/configs/mikroe-stm32f4/README.txt"><b><i>README.txt</i></b></a>
  |   |   |- mirtoo/
  |   |   |   `- <a href="http://sourceforge.net/p/nuttx/git/ci/master/tree/nuttx/configs/mirtoo/README.txt"><b><i>README.txt</i></b></a>
+ |   |   |- mt-db-x3//
+ |   |   |   `- <a href="http://sourceforge.net/p/nuttx/git/ci/master/tree/nuttx/configs/mt-db-x3//README.txt"><b><i>README.txt</i></b></a>
  |   |   |- mx1ads/
  |   |   |   `- <a href="http://sourceforge.net/p/nuttx/git/ci/master/tree/nuttx/configs/mx1ads/README.txt"><b><i>README.txt</i></b></a>
  |   |   |- ne64badge/
diff --git a/nuttx/README.txt b/nuttx/README.txt
index 0eb84912b..0955d5c06 100644
--- a/nuttx/README.txt
+++ b/nuttx/README.txt
@@ -961,7 +961,9 @@ nuttx
  |   |   `- README.txt
  |   |-  freedom-kl25z/
  |   |   `- README.txt
- |   |-  hymini-stm32v/
+ |   |- galileo/
+ |   |   `- README.txt
+ |   |- hymini-stm32v/
  |   |   `- README.txt
  |   |- kwikstik-k40/
  |   |   `- README.txt
@@ -989,6 +991,8 @@ nuttx
  |   |   `- README.txt
  |   |- mirtoo/
  |   |   `- README.txt
+ |   |- mt-db-x3/
+ |   |   `- README.txt
  |   |- mx1ads/
  |   |   `- README.txt
  |   |- ne63badge/
diff --git a/nuttx/configs/galileo/README.txt b/nuttx/configs/galileo/README.txt
new file mode 100755
index 000000000..2e1452e52
--- /dev/null
+++ b/nuttx/configs/galileo/README.txt
@@ -0,0 +1,52 @@
+README.txt
+==========
+
+  This README.txt file discusses the port of NuttX to the Intel Galileo
+  board.
+
+  NOTE: There is no port for the Galileo in place as of this writing.  At this
+  point in time, this README file is only a repository for pre-porting
+  information.  It is not clear as of this writing whether there ever will
+  be a port to the Galileo development board or not.
+
+LEDs and Buttons
+================
+
+Serial Console
+==============
+
+Serial Console
+==============
+
+  Galileo provides two options for a Serial Console:
+
+  1) UART TTL (5V/3.3V) serial communication is available on Arduino
+     digital 0 (pin 1, IO0) and digital 1 (pin 2, IO1).  The function of IO0
+     and IO1 are controlled via a TS5A23159 2-channel 2:
+     multiplexer/demultiplexer
+
+     --- ---- --------- -------------------------------------
+     PIN NAME SIGNAL    DESCRIPTION
+     --- ---- --------- -------------------------------------
+      1  IN1  IO0_MUX   Select NO1 or NC1 as IO on COM1 = IO0
+      2  NO1  LVL_RXD   IN=L, IO0=RXD
+      3  NC1  IO0_GPIO  IN=H, IO0=GPIO
+     --- ---- --------- -------------------------------------
+      5  IN2  IO1_MUX   Select NO1 or NC1 as IO on COM2 = IO1
+      4  NO2  IO1_GPIO  IN=L, IO1=GPIO
+      7  NC2  LVL_TXD   IN=H, IO2=TXD
+     --- ---- --------- -------------------------------------
+
+     The LVL_RXD/LVL_TXD driver from UART0_TXD/UART0_RXD via a TXS0108E
+     voltage level translator that brings the which brings 1.2-3.6V signals
+     to 165-5.5V.
+
+  2) In addition, a second UART provides RS-232 support via a MAX3232 driver
+     and is connected via a 3.5mm jack:  Sleeve = GND, RING=SERIAL1_RXD, and
+     TIP=SERIAL1_TXD.
+
+  UART1 may be convenient because of its built-in RS232 drivers.  But if you
+  have a standard RS-232 shield, then UART0 may be the better choice.
+
+Configurations
+==============
diff --git a/nuttx/configs/mt-db-x3/README.txt b/nuttx/configs/mt-db-x3/README.txt
index 6366c111c..5ea012e1f 100644
--- a/nuttx/configs/mt-db-x3/README.txt
+++ b/nuttx/configs/mt-db-x3/README.txt
@@ -1,12 +1,17 @@
 README
 ======
 
-This README file discusses the port of NuttX to the MT-DB-X3 development
-board from MattairTech.  This board may host a variety of 64-pin AVR XMega
-part.  This port was specifically performed using the ATXmega384c3.
+  This README file discusses the port of NuttX to the MT-DB-X3 development
+  board from MattairTech.  This board may host a variety of 64-pin AVR XMega
+  part.  This port was specifically performed using the ATXmega384c3.
 
-See the MattairTech website for further information about the MT-DB-X3:
-http://www.mattairtech.com/.
+  See the MattairTech website for further information about the MT-DB-X3:
+  http://www.mattairtech.com/.
+
+  NOTE: There is no port for the XMEGA in place as of this writing.  At this
+  point in time, this README file is only a repository for pre-porting
+  information.  It is not clear as of this writing whether there ever will
+  be a port to the MT-DB-X3 development board or not.
 
 Contents
 ========
@@ -19,59 +24,59 @@ Contents
 PIO Usage
 =========
 
-PA0  CONN_P_10 pin 1, Aref via J34
-PA1  CONN_P_10 pin 2
-PA2  CONN_P_10 pin 3
-PA3  CONN_P_10 pin 4
-PA4  CONN_P_10 pin 5
-PA5  CONN_P_10 pin 6
-PA6  CONN_P_10 pin 7
-PA7  CONN_P_10 pin 8
+  PA0  CONN_P_10 pin 1, Aref via J34
+  PA1  CONN_P_10 pin 2
+  PA2  CONN_P_10 pin 3
+  PA3  CONN_P_10 pin 4
+  PA4  CONN_P_10 pin 5
+  PA5  CONN_P_10 pin 6
+  PA6  CONN_P_10 pin 7
+  PA7  CONN_P_10 pin 8
 
-PB0  CONN_P_10 pin 9, Aref via J25
-PB1  CONN_P_10 pin 10
-PB2  C4_LS CONN_P14 pin 5
-PB3  C4_LS CONN_P14 pin 5
-PB4  C4_LS CONN_P14 pin 5, Alt JTAG TMS
-PB5  C4_LS CONN_P14 pin 5, Alt JTAG TDI
-PB6  C4_LS CONN_P14 pin 5, Alt JTAG TCK
-PB7  C4_LS CONN_P14 pin 5, Alt JTAG TDO, Voltage measurement via J15
+  PB0  CONN_P_10 pin 9, Aref via J25
+  PB1  CONN_P_10 pin 10
+  PB2  C4_LS CONN_P14 pin 5
+  PB3  C4_LS CONN_P14 pin 5
+  PB4  C4_LS CONN_P14 pin 5, Alt JTAG TMS
+  PB5  C4_LS CONN_P14 pin 5, Alt JTAG TDI
+  PB6  C4_LS CONN_P14 pin 5, Alt JTAG TCK
+  PB7  C4_LS CONN_P14 pin 5, Alt JTAG TDO, Voltage measurement via J15
 
-PC0  C0_LS CONN_P14 pin 7
-PC1  C1_LS CONN_P14 pin 8
-PC2  C2_LS CONN_P14 pin 9
-PC3  C3_LS CONN_P14 pin 10
-PC4  C4_LS CONN_P14 pin 5, PDI/SPI Header pin 5 via J8
-PC5  C5_LS CONN_P14 pin 6, PDI/SPI Header pin 4 via J8
-PC6  C6_LS CONN_P14 pin 7, PDI/SPI Header pin 1 via J13
-PC7  C7_LS CONN_P14 pin 8, PDI/SPI Header pin 3 via J12
+  PC0  C0_LS CONN_P14 pin 7
+  PC1  C1_LS CONN_P14 pin 8
+  PC2  C2_LS CONN_P14 pin 9
+  PC3  C3_LS CONN_P14 pin 10
+  PC4  C4_LS CONN_P14 pin 5, PDI/SPI Header pin 5 via J8
+  PC5  C5_LS CONN_P14 pin 6, PDI/SPI Header pin 4 via J8
+  PC6  C6_LS CONN_P14 pin 7, PDI/SPI Header pin 1 via J13
+  PC7  C7_LS CONN_P14 pin 8, PDI/SPI Header pin 3 via J12
 
-PD0  CONN_P14 pin 9
-PD1  CONN_P14 pin 10
-PD2  CONN_P14 pin 11
-PD3  CONN_P14 pin 12
-PD4  CONN_P14 pin 13
-PD5  CONN_P14 pin 14, TXB0103 Output Enable
-PD6  CONN_P14 pin 12, USB D-
-PD7  CONN_P14 pin 13, USB D+
+  PD0  CONN_P14 pin 9
+  PD1  CONN_P14 pin 10
+  PD2  CONN_P14 pin 11
+  PD3  CONN_P14 pin 12
+  PD4  CONN_P14 pin 13
+  PD5  CONN_P14 pin 14, TXB0103 Output Enable
+  PD6  CONN_P14 pin 12, USB D-
+  PD7  CONN_P14 pin 13, USB D+
 
-PE0  CONN_P10 pin 1
-PE1  CONN_P10 pin 2
-PE2  CONN_P10 pin 3
-PE3  CONN_P10 pin 4
-PE4  CONN_P10 pin 5
-PE5  CONN_P10 pin 6
-PE6  CONN_P10 pin 7, TOSC1 via J28
-PE7  CONN_P10 pin 8, TOSC1 via J29
+  PE0  CONN_P10 pin 1
+  PE1  CONN_P10 pin 2
+  PE2  CONN_P10 pin 3
+  PE3  CONN_P10 pin 4
+  PE4  CONN_P10 pin 5
+  PE5  CONN_P10 pin 6
+  PE6  CONN_P10 pin 7, TOSC1 via J28
+  PE7  CONN_P10 pin 8, TOSC1 via J29
 
-PF0  PORT F pin 1
-PF1  PORT F pin 2
-PF2  PORT F pin 3
-PF3  PORT F pin 4
-PF4  PORT F pin 5, Bootloader jumper
-PF5  PORT F pin 6
-PF6  PORT F pin 7, Green LED via J31
-PF7  PORT F pin 8, User button via J33 (otherwise reset)
+  PF0  PORT F pin 1
+  PF1  PORT F pin 2
+  PF2  PORT F pin 3
+  PF3  PORT F pin 4
+  PF4  PORT F pin 5, Bootloader jumper
+  PF5  PORT F pin 6
+  PF6  PORT F pin 7, Green LED via J31
+  PF7  PORT F pin 8, User button via J33 (otherwise reset)
 
 LEDs and Buttons
 ================
@@ -80,4 +85,4 @@ Serial Console
 ==============
 
 Configurations
-==============
\ No newline at end of file
+==============