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Dacu

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===Introduction===
Dacu is an ARM Cortex-A8 industrial tablet platform, built around a carrier board hosting the [[File:Category:LizardDacu-top-view.png|600px|frameless|Lizardborder]] CPU module
The following picture shows block diagram of Dacu:is a '''carrier board''' that can host various '''DAVE Embedded Systems''' SOMs, like, for example, the [[File:dacu-bd.jpgCategory:Lizard|thumbnail|centerLizard]]CPU module.{{ImportantMessage|text=Please note that DACU supports several BOM variants in order to mate with different SOMs or evaluation boards.}}
===Quick start===
This section describes how to quick start Dacu system.
Dacu's system specifications are the following:
==={| class= "Full controlwikitable" mode ====# connect the serial cable, provided with the board, to J3 pin|-|Supported SOMs|[[:Category:AxelUltra|Axel Ultra]]<br>[[:Category:AxelLite|Axel Lite]]<br>[[:Category:Diva|Diva]]<br>[[:Category:Lizard|Lizard]]|-|Power|12-strip connector24 V# connect this cable to PC COM port through a NULL|-modem cable |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 (not provideddebug port)# start your favourite terminal software |-|Ethernet|1x Fast Ethernet on PC; communication parameters are:RJ45 connector|-|Display|7" 800x480 LVDS|-|Storage|1x microSD slot|-|USB|2x USB 2.0 ports|-|Audio|UDA1345 codec|-|Buses#* baud rate: 115200 Bps|I2C<br>SPI#* data bits: 8|-#* stop bits: 1|Other#* parity: none|On board touch controller<br>Optional Wi-Fi module<br>GPIOs# 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, U-Boot bootloader will be executed and the following messages will be printed on serial console:== Block Diagram ==
<pre class="The following picture shows block diagram of the Dacu carrier board-terminal">U-Boot 2009.11-00074-g34e0d5b-dirty (Jul 17 2012 - 11the version for the Lizard SOM):00:55) [dacu-android-0.9.2]
AM35xx[[File:dacu-GP ES2bd.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 =>png|thumbnail|center|400px]]
</pre>== Mechanicals ==
Once The following picture shows the boot process has completed, you'll get the default Android "desktop"mechanical layout of Dacu:[[File:Dacu-top.png|thumbnail|center|400px]]
[[File:Android-dacu-lock-screen.jpg|thumb|none|border|450px|Android default lock screen]]== Available options ==
Moreover, 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 system.=== RS232/RS485/RS422 or CAN ===
==== "Normal" mode =Male or female DB9 connector ===# 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, the system will boot loading the software components from the internal flash. Once the boot process has completed, you'll get the default Android "desktop":== Connectors pinout ==
You can now access The following section describes the system using adbon-board connectors and their pinout.
=== Power supply ===
==== Running Power is provided through the Android Debug Bridge (ADB) ====JP2 DC Power Jack. Power voltage range is [12-24 V]
[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=== CPU module connectors – J1, so before using it you must install the SDK.J2 ===
To establish J1 and J2 are the ADB connection, on a '''Linux''' host machine open a shell and launch 140-pin mating connectors for the following commands:hosted SOM.
<pre class="workstation== UART1 -terminal">$ export PATHJ4 ==${PATH}:<your_sdk_dir>/platform-tools$ export ADBHOST=<target's ip address>$ adb kill-server$ adb start-server</pre>
On J4 is a '''Windows''' host machine, open a shell and launch standard DB9 connector for the RS232 four-wires UART1 port. The following commandstable reports the connector's pinout:
<pre {| class="workstationwikitable" |-!Pin# !Pin name!Function!Notes|-|1, 4, 6, 9|N.A.|N.A.|Connected to protection diode array|-|2|UART_EXT_RX|Receive line||-terminal">adb tcpip 5555|3|UART_EXT_TX|Transmit line||-|5|DGND|Ground||-|7|UART_EXT_RTS|Request To Send lineadb connect <target's ip address>:5555|adb kill|-serveradb start|8|UART_EXT_CTS|Clear To Send line||-server</pre>|}
=== UART2/CAN - J5 ===
To check J5 is a standard DB9 '''male''' connector for the connectionconfigurable 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, please launchwhile the RS232/RS422/RS485 interface is provided as an option to customers who choose the alternative configuration.
<pre class="workstation-terminal">$ adb devices <Please note that this port can be used to connect a [http:/pre>/www.rovingnetworks.com/products/RN240 Bluetooth serial adapter] powered by the 5V_BT signal.
If everything is working properly, you should see the following messages:
<pre class="workstation-terminal">$ adb devicesList of devices attachedemulator-5554 device</pre>The following table reports the connector's pinout:
You can open a remote shell using the following command:{| 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)||-|}
<pre class="workstation-terminal">
$ adb shell
</pre>
To install an application (in .apk format), you can use the following commmand:==== Configuration Jumpers J26 e J27 ====
<pre 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="workstationwikitable" |-!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||-terminal|} === 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|$ adb install <path |Connected to apk>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 === J12 is a Micro-SD card header. The following table reports the connector's pinout: {| 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, 12|MMC1_DAT5|||-|} === SDIO slot (DWM module) - J14 === 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: {| 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/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|-|} === USB ports - J15 === J15 is a stacked, dual port USB Type A connector. ==== USB port 0 (''high speed'') ==== USB port 0 is mapped on the '''lower''' USB connector. The following table reports the connector's pinout: {| 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'') ==== USB port 1 is mapped on the '''higher''' USB connector. The following table reports the connector's pinout: {| class="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 === J18 is a 8-pin 1.25mm pitch vertical header. The following table reports the connector's pinout: {| class="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||-|} === GPIO - J19 === J19 is a 8-pin 1.25mm pitch vertical header. The following table reports the connector's pinout: {| class="wikitable" |-!Pin# !Pin name!Function!Notes|-|1, 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||-|} === SPI bus - J20 === J20 is a 8-pin 1.25mm pitch vertical header. The following table reports the connector's pinout: {| 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||-|} === Audio - J21 === J21 is a 8-pin 1.25mm pitch vertical header. The following table reports the connector's pinout: {| class="wikitable" |-!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 input||-|} === JTAG - J16 === J16 is a standard 20-pin 2.54mm pitch header connector (bottom side). The following table reports the connector's pinout: {| class="wikitable" |-!Pin# !Pin name!Function!Notes|-|1, 2|3.3V|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, 19|N.A.|Not connected||-|} == Versions ==As stated before, different versions of DACU board exist in order to support several SOMs and evaluation boards. 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://mirror.dave.eu/diva/dacu//dacu-CS091612C_component_view.pdf ==Mechanical==* DXF: http://mirror.dave.eu/diva/dacu/dacu_2D_CS091612C.zip* IDF (3D): http://mirror.dave.eu/diva/dacu//pre>dacu_3D_CS091612C.zip
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