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Dacu

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==Introduction==
[[File:Dacu-top-view.png|600px|frameless|border]] Dacu is an ARM Cortex-A8 industrial tablet platform, built around a '''carrier board hosting ''' that can host various '''DAVE Embedded Systems''' SOMs, like, for example, the [[:Category:Lizard|Lizard]] CPU module. The main {{ImportantMessage|text=Please note that DACU supports several BOM variants in order to mate with different SOMs or evaluation boards.}}  Dacu's system specifications are the following:
{| class="wikitable"
|-
|MicroprocessorSupported SOMs|ARM Cortex-A8 @ 500 MHz[[:Category:AxelUltra|Axel Ultra]]<br>[[:Category:AxelLite|Axel Lite]]<br>[[:Category:Diva|Diva]]<br>[[:Category:Lizard|Lizard]]
|-
|Power
|-
|Serial Ports
|1x UART RS232 on DB9<br>1x UART (RS232/RS422/RS485/) or CAN on DB9(hardware mount options)<br>1x UART RS232 on pin strip (debug port)
|-
|Ethernet
|-
|USB
|1x 2x USB Host full speed port<br>1x USB Host high speed port2.0 ports
|-
|Audio
== Block Diagram ==
The following picture shows block diagram of the Dacucarrier board (the version for the Lizard SOM): 
[[File:dacu-bd.png|thumbnail|center|400px]]
The following picture shows the mechanical layout of Dacu:
[[File:Dacu-top.png|thumbnail|center|400px]]
 
== Available options ==
 
=== RS232/RS485/RS422 or CAN ===
 
=== Male or female DB9 connector ===
== Connectors pinout ==
Power is provided through the JP2 DC Power Jack. Power voltage range is [12-24 V]
=== Lizard CPU module connectors – J1, J2 ===
J1 and J2 are the 140-pin mating connectors for Lizard CPU modulethe hosted SOM.
=== UART1 - J4 ===
J4 is a standard DB9 connector for the RS232 four-wires UART1 port. The following table reports the connector's pinout:
{| class="wikitable"
|}
=== UART2/CAN - J5 ===
J5 is a standard DB9 '''male''' connector for the configurable UART/CAN port. The board provides some '''hardware''' mount options for the selection of the UART mode (RS232/RS422/RS485 with auto-direction) or the CAN mode. The board default configuration provides the CAN interface on this port, while the RS232/RS422/RS485 interface is provided as an option to customers who choose the alternative configuration.
Please note that this port can be used to connect a [http://www.rovingnetworks.com/products/RN240 Bluetooth serial adapter] powered by the 5V_BT signal.
=== UART2 - J5 ===
RS232 (4-wire)RS485 (half-duplex)CANThe following table reports the connector's pinout:
{| class==== Configuration Jumpers J26 e J27 ===="wikitable" |-!Pin# !Pin name!RS232 mode !RS422 mode !RS485 mode !CAN mode!Notes|-|1|N.A./Reserved|Not connected|Not connected|Not connected|Reserved||-|2|UART2_A/CAN_M|UART2 rx line|Not connected|Not connected|CAN bus low signal||-|3|UART2_Y/CAN_GND|UART2 tx line|Inverting driver output|Inverting driver output|CAN bus GND||-|4|N.A./Reserved|Not connected|Not connected|Not connected|Reserved||-|5|DGND/CAN_SHIELD|Ground|Ground|Ground |CAN bus shield (Optional)||-|6|N.A./GND|Not connected|Not connected|Not connected|Ground (Optional)||-|7|UART2_Z/CAN_P|UART2 Request To Send|Noninverting driver output|Noninverting driver output|CAN bus high signal||-|8|UART2_B/Reserved|UART2 Clear To Send|Not connected|Not connected|Reserved||-|9|5V_BT/CAN_V+|5V for bluetooth|5V for bluetooth|5V for bluetooth|CAN bus Power (Optional)||-|}
=== UART3 - J25 ===
Debug==== Configuration Jumpers J26 e J27 ====
=== Ethernet port - J6 ===When the board is configured to provide the UART2 interface through the J5 connector, the J26 and J27 jumpers are used to configure the UART mode, as reported below:
J6 is a standard RJ45 connectors connected to the Lizard integrated ethernet controller and PHY.{| class="wikitable" |-!Jumper!RS232 mode!RS422 mode!RS485 mode|-|1-3|open|open|closed|-|5-7|open|closed|open|-|9-11|open|closed|open|-|2-4|open|open|closed|-|6-8|open|closed|closed|-|10-12|open|closed|closed|-|13-15|open|open|closed|-|14-16|open|open|closed|-|}
=== LCD LVDS connector UART3 - J8 J25 ===
J25 is a 10 pin (5x2x2.54mm) header connector. The following table reports the connector's pinout:
{| class="wikitable"
|-
!Pin#
!Pin name
!Function
!Notes
|-
|1, 2, 4, 6, 7, 8, 10
|N.A.
|N.C.
|Not connected
|-
|3
|UART3_RX
|Uart Receive line
|
|-
|5
|UART3_TX
|Uart Transmit line
|
|-
|9
|DGND
|Ground
|
|-
|}
=== LCD Ziff connecor - J7 ===
Optional=== Ethernet port - J6 ===
=== Touch screen connecor - J28 ===J6 is a standard RJ45 connectors connected to the Lizard integrated ethernet controller and PHY.
{| class=== MicroSD slot "wikitable" |-!Pin# !Pin name!Function!Notes|-|1|ETH_CTTD|Center Tap TX||-|2|ETH_TX+|Eth transmit data +||-|3|ETH_TX-|Eth transmit data -||-|4|ETH_RX+|Eth receive data +||-|5|ETH_RX-|Eth receive data -||-|6|ETH_CTRD|Center Tap RX||-|7|DGND|Ground||-|8|ETH_LED2|Eth speed led||-|9|DGND|Ground||-|10|ETH_LED1|Eth activity led||- J12 ===|}
=== SDIO slot (DWM module) LCD LVDS connector - J14 J8 ===
=== USB ports J8 is a Hirose (cod. DF13A- J15 ===20DP-1.25V) double row 1.25mm pitch miniature crimping connector. The following table reports the connector's pinout:
{| class=== I2C bus "wikitable" |-!Pin# !Pin name!Function!Notes|-|1, 2|3.3V_LCD|3.3 V||-|3, 4, 7, 10, 13, 16, 19|DGND|Ground||-|5|LCD_LVDS_D0-|LVDS Data 0 -||-|6|LCD_LVDS_D0+|LVDS Data 0 +||-|8|LCD_LVDS_D1-|LVDS Data 1 -||-|9|LCD_LVDS_D1+|LVDS Data 1 +||-|11|LCD_LVDS_D2-|LVDS Data 2 -||-|12|LCD_LVDS_D2+|LVDS Data 2 +||-|14|LCD_LVDS_CLK-|LVDS clock -||-|15|LCD_LVDS_CLK+|LVDS clock +||-|17|LCD_P17|Backlight PWM|Connected to LCD_BKLT_PWM|-|18|LCD_P18||Connected to 5V_LCD|-|20|LCD_P20||Connected to ground|-|21, 22|LVDS_SHIELD|LVDS shield||- J18 ===|}
=== GPIO LCD Ziff connecor - J19 J7 ===
=== SPI bus J7 is an optional connector for an Ampire AM- J20 ===800480STMQW-TB0 7" 800x480 display. The following table reports the connector's pinout:
{| class=== Audio "wikitable" |-!Pin# !Pin name!Function!Notes|-|1, 2, 9, 13, 17, 21, 25, 39, 40|DGND|Ground||-|3|LCD_PCLK|LCD Pixel clock||-|4|LCD_IRQ|||-|5|TSC_YP|||-|6|LCD_R0|||-|7|LCD_R1|||-|8|LCD_R2|||-|10|LCD_R3|||-|11|LCD_R4|||-|12|LCD_R5|||-|14|LCD_G0|||-|15|LCD_G1|||-|16|LCD_G2|||-|18|LCD_G3|||-|19|LCD_G4|||-|20|LCD_G5|||-|22|LCD_B0|||-|23|LCD_B1|||-|24|LCD_B2|||-|26|LCD_B3|||-|27|LCD_B4|||-|28|LCD_B5|||-|29|TSC_YM|||-|30|TSC_XM|||-|31|TSC_XP|||-|32|LCD_DE|||-|33, 34|3.3V_LCD|||-|35, 36, 37|5V_LCD|||-|38|LCD_BKLT_PWM|||- J21 ===|}
=== JTAG Touch screen connecor - J16 J28 ===
BottomJ28 is a 1.0mm pitch 4-pin ZIF connector. The following table reports the connector's pinout:
{| class== Software and hardware usage notes =="wikitable" |-!Pin# !Pin name!Function!Notes|-|1|TSC_YP|Touch controller Y+||-|2|TSC_XP|Touch controller X+||-|3|TSC_YM|Touch controller Y-||-|4|TSC_XM|Touch controller X-||-|}
=== Quick startMicroSD slot - J12 ===This section describes how to quick start Dacu system.
==== "Full control" mode ====# connect the serial cable, provided with the board, to J3 pin-strip connector# connect this cable to PC COM port through J12 is a NULLMicro-modem cable (not provided)# start your favourite terminal software on PC; communication parameters are:#* baud rate: 115200 Bps#* data bits: 8#* stop bits: 1#* parity: none# connect SD card header. The following table reports the system to Ethernet LAN (RJ45 connector, J6)# connect a 12Vcc power supply to to the power jack (JP2)'s pinout:
Once power has been applied{| class="wikitable" |-!Pin# !Pin name!Function!Notes|-|1|MMC1_DAT2|||-|2|MMC1_DAT3|||-|3|MMC1_CMD|||-|4|MMC_3.3V|||-|5|MMC1_CLK|||-|6|DGND|||-|7|MMC1_DAT0|||-|8|MMC1_DAT1|||-|9, 11|SD_SHIELD|||-|10, U12|MMC1_DAT5|||-Boot bootloader will be executed and the following messages will be printed on serial console:|}
<pre class="board-terminal">U-Boot 2009.11-00074-g34e0d5b-dirty == SDIO slot (Jul 17 2012 - 11:00:55DWM module) [dacu-android-0.9.2]J14 ===
AM35xxJ14 is a Molex dual row 0.50mm pitch SlimStack™ receptacle. This connector is dedicated to the [[Wireless_Module_(DWM) | DWM add-GP ES2on module]].0, L3-165MHzDAVE Lizard board + LPDDR/NANDI2C: readyDRAM: 256 MBFlashThe following table reports the connector's pinout: 32 MBNAND: 1024 MiBIn: serialOut: serialErr: serialDie ID #7cf60001000000000160ae2d0b01e00aNet: davinci_emac_initializeEthernet PHY: GENERIC @ 0x11DaVinci EMAC Hit any key to stop autoboot: 0 =>
<{| class="wikitable" |-!Pin# !Pin name!Function!Notes|-|1, 2|5V|||-|3, 4|3.3V|||-|5, 6, 9, 10, 19|DGND|||-|7|MMC2_CMD|||-|8|MMC2_CLK|||-|11|MMC2_DAT0|||-|12, 14, 16, 18, 20, 22|N.C.|Not connected||-|13|MMC2_DAT1|||-|15|MMC2_DAT2|||-|17|MMC2_DAT3|||-|21|UART2_RX||Mount option|-|23|UART2_CTS||Mount option|-|24|BT_F5||Connected to DSS_DATA20/pre>DSI_DY1|-|25|UART2_TX||Mount option|-|26|BT_F2||Connected to DSS_DATA21/DSI_DX1|-|27|UART2_RTS||Mount option|-|28|WIFI_IRQ||Connected to DSS_DATA22/DSI_DY2|-|29|BT_EN||Connected to DSS_DATA19/DSI_DX0|-|30|WIFI_EN||Connected to DSS_DATA23/DSI_DX2|-|}
Once the boot process has completed, you'll get the default Android "desktop":=== USB ports - J15 ===
[[File:Android-dacu-lock-screenJ15 is a stacked, dual port USB Type A connector.jpg|thumb|none|border|450px|Android default lock screen]]
Moreover, you==== USB port 0 ('ll have immediate access to the Android shell, so you can use the shell commands to interact with the system and see the output messages on the console. Using the serial console doesn't prevent you from using also the adb tool to access the system.high speed'') ====
==== "Normal" mode ====# connect USB port 0 is mapped on the system to Ethernet LAN (RJ45 '''lower''' USB connector, J6)# connect a 12Vcc power supply to to . The following table reports the power jack (JP2) connector's pinout:
Once power has been applied, the system will boot loading the software components from the internal flash. Once the boot process has completed, you'll get the default Android {| class="desktopwikitable":|-!Pin# !Pin name!Function!Notes|-|B1|5V_USBH_0|5V||-|B2|USB0_DM|USB0 Data -||-|B3|USB0_DP|USB0 Data +||-|B4|DGND_USBH_0||Ground|-|}
You can now access the system using adb.==== USB port 1 (''full speed'') ====
USB port 1 is mapped on the '''higher''' USB connector. The following table reports the connector's pinout:
{| class==== Default IP address ===="wikitable" |-!Pin# !Pin name!Function!Notes|-|A1|5V_USBH_1|5V||-|A2|USBM1|USB0 Data -||-|A3|USBP1|USB1 Data +||-|A4|DGND_USBH_1|Ground||-|}
{{ImportantMessage|text='''The default IP address is 192.168.0.122'''}}== I2C bus - J18 ===
J18 is a 8-pin 1.25mm pitch vertical header. The following table reports the connector's pinout:
{| class==== Running the Android Debug Bridge (ADB) ===="wikitable" |-!Pin# !Pin name!Function!Notes|-|1, 5|DGND|Ground||-|4, 8|3.3V|3.3 V||-|2|I2C2_SDA|I2C #2 data||-|3|I2C2_SCL|I2C #2 clock||-|6|I2C3_SDA|I2C #3 data||-|7|I2C3_SCL|I2C #3 clock||-|}
[http://developer.android.com/tools/help/adb.html ADB] is a fundamental development tool and enables remote access to the Android device. ADB is provided with the Android SDK, so before using it you must install the SDK.=== GPIO - J19 ===
To establish J19 is a 8-pin 1.25mm pitch vertical header. The following table reports the ADB connection, on a 'connector''Linux''' host machine open a shell and launch the following commandss pinout:
<pre {| class="workstationwikitable" |-!Pin# !Pin name!Function!Notes|-|1, 8|DGND|Ground||-|2|MCBSP1_CLKX|GPIO||-|3|MCBSP1_DX|GPIO||-terminal">$ export PATH=${PATH}:<your_sdk_dir>/platform|4|MCBSP1_FSX|GPIO||-|5|MCBSP3_DR|GPIO||-tools$ export ADBHOST=<target's ip address>|6|MCBSP3_FSX|GPIO|$ adb kill|-server$ adb start|7|MCBSP4_DR|GPIO||-server</pre>|}
On a '''Windows''' host machine, open a shell and launch the following commands:=== SPI bus - J20 ===
<pre class="workstationJ20 is a 8-terminal">adb tcpip 5555adb connect <targetpin 1.25mm pitch vertical header. The following table reports the connector's ip address>pinout:5555adb kill-serveradb start-server</pre>
{| class="wikitable"
|-
!Pin#
!Pin name
!Function
!Notes
|-
|1
|DGND
|Ground
|
|-
|2
|MCSPI1_CLK
|SPI1 clock
|
|-
|3
|MCSPI1_CS0
|SPI1 chip select #0
|
|-
|4
|MCSPI1_CS1
|SPI1 chip select #1
|
|-
|5
|MCSPI1_CS2
|SPI1 chip select #2
|
|-
|6
|MCSPI1_SOMI
|SPI1 slave output master input
|
|-
|7
|MCSPI1_SIMO
|SPI1 slave input master output
|
|-
|8
|3.3V
|3.3 V
|
|-
|}
To check the connection, please launch=== Audio - J21 ===
<pre class="workstationJ21 is a 8-terminal">$ adb devices </pre>pin 1.25mm pitch vertical header. The following table reports the connector's pinout:
If everything is working properly{| class="wikitable" |-!Pin# !Pin name!Function!Notes|-|1|AUD_PW2|Audio amplifier VO 2||-|2|AUD_PW1|Audio amplifier VO 1||-|3, you should see the following messages: 5, 7|DGND|Ground||-|4|LINEOUT_R|Audio coded lineout right||-|6|LINEOUT_L|Audio coded lineout left||-|8|MIC_INPUT|Microphone input||-|}
<pre class="workstation== JTAG -terminal">$ adb devicesList of devices attachedemulator-5554 device</pre>J16 ===
You can open J16 is a remote shell using standard 20-pin 2.54mm pitch header connector (bottom side). The following table reports the following commandconnector's pinout:
<pre {| class="workstationwikitable" |-terminal">$ adb shell!Pin# !Pin name!Function!Notes</pre>|-|1, 2|3.3VTo install an application (in |3.apk format)3 V||-|3|JTAG_TRSTn|||-|5|JTAG_TDI|||-|7|JTAG_TMS|||-|9|JTAG_TCK|||-|11|JTAG_RTCK|||-|13|JTAG_TDO|||-|15|JTAG_RST#||Connected to MRSTn|-|4, you can use the following commmand:6, 8, 10, 12, 14, 16, 18, 20|DGND|Ground||-|17, 19|N.A.|Not connected||-|}
<pre class="workstation-terminal">= Versions ==$ adb install <path As stated before, different versions of DACU board exist in order to apk></pre>support several SOMs and evaluation boards.
===Useful Links===The following pages provide some additional information (including '''schematics''' and '''BOMs''') related to the mating of DACU with the supported SOMs. * [[Dacu for the Diva SOM]]* [[Dacu for the Axel SOM]]
[==Layout==* http://wwwmirror.youtubedave.comeu/diva/dacu/watch?v=VhvlZL46R5Q Video: Android Multitouch demo on Dacu]/dacu-CS091612C_component_view.pdf
[==Mechanical==* DXF: http://developermirror.androiddave.comeu/diva/dacu/dacu_2D_CS091612C.zip* IDF (3D): http://mirror.dave.eu/diva/toolsdacu/help/adbdacu_3D_CS091612C.html Android Debug Bridge]zip
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