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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.{{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" |-|Supported SOMs|[[:Category:AxelUltra|Axel Ultra]]<br>[[:Category:AxelLite|Axel Lite]]<br>[[:Category:Diva|Diva]]<br>[[:Category:Lizard|Lizard]]|-|Power|12-24 V|-|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|1x Fast Ethernet on RJ45 connector|-|Display|7" 800x480 LVDS|-|Storage|1x microSD slot|-|USB|2x USB 2.0 ports|-|Audio|UDA1345 codec|-|Buses|I2C<br>SPI|-|Other|On board touch controller<br>Optional Wi-Fi module<br>GPIOs|-|} == Block Diagram == The following picture shows block diagram of the Dacu carrier board (the version for the Lizard SOM):
The following picture shows block diagram of Dacu:
[[File:dacu-bd.png|thumbnail|center|400px]]
==Mechanicals =Quick start= The following picture shows the mechanical layout of Dacu:[[File:Dacu-top.png|thumbnail|center|400px]] == Available options ==This === RS232/RS485/RS422 or CAN === === Male or female DB9 connector === == Connectors pinout == The following section describes how the on-board connectors and their pinout. === Power supply === Power is provided through the JP2 DC Power Jack. Power voltage range is [12-24 V] === CPU module connectors – J1, J2 === J1 and J2 are the 140-pin mating connectors for the 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" |-!Pin# !Pin name!Function!Notes|-|1, 4, 6, 9|N.A.|N.A.|Connected to protection diode array|-|2|UART_EXT_RX|Receive line||-|3|UART_EXT_TX|Transmit line||-|5|DGND|Ground||-|7|UART_EXT_RTS|Request To Send line||-|8|UART_EXT_CTS|Clear To Send line||-|} === 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 quick start Dacu systemconnect a [http://www.rovingnetworks.com/products/RN240 Bluetooth serial adapter] powered by the 5V_BT signal.  The following table reports the connector's pinout: {| class="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)||-|}  ==== Configuration Jumpers J26 e J27 ==== 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: {| 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|-|} === UART3 - 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||-|}  === Ethernet port - J6 === J6 is a standard RJ45 connectors connected to the Lizard integrated ethernet controller and PHY. {| class="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||-|} === LCD LVDS connector - J8 === J8 is a Hirose (cod. DF13A-20DP-1.25V) double row 1.25mm pitch miniature crimping connector. The following table reports the connector's pinout:  {| class="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||-|} === LCD Ziff connecor - J7 === J7 is an optional connector for an Ampire AM-800480STMQW-TB0 7" 800x480 display. The following table reports the connector's pinout: {| class="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|||-|} === Touch screen connecor - J28 === J28 is a 1.0mm pitch 4-pin ZIF connector.The following table reports the connector's pinout: {| class="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-||-|}
===MicroSD slot - J12 = "Full control" mode ====# connect the serial cable, provided with the board, to J3 pin-strip connector# connect this cable to PC COM port through a NULL-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 the system to Ethernet LAN (RJ45 connector, J6)# connect a 12Vcc power supply to to the power jack (JP2)
Once power has been applied, UJ12 is a Micro-Boot bootloader will be executed and SD card header. The following table reports the following messages will be printed on serial consoleconnector's pinout:
<pre {| class="boardwikitable" |-!Pin# !Pin name!Function!Notes|-|1|MMC1_DAT2|||-terminal">U|2|MMC1_DAT3|||-|3|MMC1_CMD|||-Boot 2009|4|MMC_3.113V|||-|5|MMC1_CLK|||-00074|6|DGND|||-g34e0d5b|7|MMC1_DAT0|||-dirty (Jul 17 2012 |8|MMC1_DAT1|||- |9, 11:00:55) [dacu|SD_SHIELD|||-android|10, 12|MMC1_DAT5|||-0.9.2]|}
AM35xx=== SDIO slot (DWM module) -GP ES2.0, L3-165MHzDAVE Lizard board + LPDDR/NANDI2C: readyDRAM: 256 MBFlash: 32 MBNAND: 1024 MiBIn: serialOut: serialErr: serialDie ID #7cf60001000000000160ae2d0b01e00aNet: davinci_emac_initializeEthernet PHY: GENERIC @ 0x11DaVinci EMAC Hit any key to stop autoboot: 0 J14 ===>
</pre>J14 is a Molex dual row 0.50mm pitch SlimStack™ receptacle. This connector is dedicated to the [[Wireless_Module_(DWM) | DWM add-on module]].The following table reports the connector's pinout:
Once the boot process has completed, you'll get the default Android {| class="desktopwikitable":|-!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/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|-|}
[[File:Android=== USB ports -dacu-lock-screen.jpg|thumb|none|border|450px|Android default lock screen]]J15 ===
MoreoverJ15 is a stacked, you'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 systemdual port USB Type A connector.
==== "Normal" mode USB port 0 (''high speed'') ====# connect the system to Ethernet LAN (RJ45 connector, J6)# connect a 12Vcc power supply to to the power jack (JP2)
Once power has been applied, USB port 0 is mapped on the system will boot loading the software components from the internal flash'''lower''' USB connector. Once The following table reports the boot process has completed, youconnector'll get the default Android "desktop"s pinout:
You can now access the system using adb.{| class="wikitable" |-!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|-|}
==== USB port 1 (''full speed'') ====
==== Default IP address ====USB port 1 is mapped on the '''higher''' USB connector. The following table reports the connector's pinout:
{{ImportantMessage|textclass='''The default IP address is 192.168.0.122'''}"wikitable" |-!Pin# !Pin name!Function!Notes|-|A1|5V_USBH_1|5V||-|A2|USBM1|USB0 Data -||-|A3|USBP1|USB1 Data +||-|A4|DGND_USBH_1|Ground||-|}
=== I2C bus - J18 ===
==== Running J18 is a 8-pin 1.25mm pitch vertical header. The following table reports the Android Debug Bridge (ADB) ====connector's pinout:
[http://developer.android.com/tools/help/adb{| class="wikitable" |-!Pin# !Pin name!Function!Notes|-|1, 5|DGND|Ground||-|4, 8|3.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 SDK3V|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||-|}
To establish the ADB connection, on a '''Linux''' host machine open a shell and launch the following commands:=== GPIO - J19 ===
<pre class="workstationJ19 is a 8-terminal">$ export PATH=${PATH}:<your_sdk_dir>/platform-tools$ export ADBHOST=<targetpin 1.25mm pitch vertical header. The following table reports the connector's ip address>$ adb kill-server$ adb start-server</pre>pinout:
On a '''Windows''' host machine{| class="wikitable" |-!Pin# !Pin name!Function!Notes|-|1, open a shell and launch the following commands:8|DGND|Ground||-|2|MCBSP1_CLKX|GPIO||-|3|MCBSP1_DX|GPIO||-|4|MCBSP1_FSX|GPIO||-|5|MCBSP3_DR|GPIO||-|6|MCBSP3_FSX|GPIO||-|7|MCBSP4_DR|GPIO||-|}
<pre class="workstation== SPI bus -terminal">adb tcpip 5555adb connect <target's ip address>:5555adb kill-serveradb start-server</pre>J20 ===
J20 is a 8-pin 1.25mm pitch vertical header. The following table reports the connector's pinout:
To check the connection, please launch{| 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||-|}
<pre class="workstation== Audio -terminal">$ adb devices </pre>J21 ===
If everything J21 is working properly, you should see a 8-pin 1.25mm pitch vertical header. The following table reports the following messagesconnector's pinout:
<pre {| class="workstationwikitable" |-terminal">$ adb devices!Pin# !Pin name!Function!Notes|-|1|AUD_PW2|Audio amplifier VO 2||-|2|AUD_PW1|Audio amplifier VO 1||-|3, 5, 7|DGND|Ground||-|4|LINEOUT_R|Audio coded lineout right||-|6|LINEOUT_L|Audio coded lineout left||-|8|MIC_INPUT|Microphone inputList of devices attached|emulator|-5554 device</pre>|}
You can open a remote shell using the following command:=== JTAG - J16 ===
<pre class="workstationJ16 is a standard 20-terminal">$ adb shell</pre>pin 2.54mm pitch header connector (bottom side). The following table reports the connector's pinout:
To install an application (in {| class="wikitable" |-!Pin# !Pin name!Function!Notes|-|1, 2|3.apk format)3V|3.3 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, 6, 8, 10, 12, 14, 16, 18, 20|DGND|Ground||-|17, you can use the following commmand: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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