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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 == === RS232/RS485/RS422 or CAN === === Male or female DB9 connector === == Connectors pinout ==This 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 quick start Dacu systemcustomers 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.  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 ===
J12 is a Micro-SD card header. The following table reports the connector's pinout:
==={| class= "Full controlwikitable" mode ====|-!Pin# connect the serial cable, provided with the board, to J3 pin!Pin name!Function!Notes|-|1|MMC1_DAT2|||-|2|MMC1_DAT3|||-|3|MMC1_CMD|||-|4|MMC_3.3V|||-|5|MMC1_CLK|||-strip connector# connect this cable to PC COM port through a NULL|6|DGND|||-modem cable (not provided)# start your favourite terminal software on PC; communication parameters are:|7|MMC1_DAT0||#* baud rate: 115200 Bps|-#* data bits: |8#* stop bits: 1|MMC1_DAT1|||-|9, 11|SD_SHIELD||#* parity: none|-# connect the system to Ethernet LAN (RJ45 connector|10, J6)12# connect a 12Vcc power supply to to the power jack (JP2)|MMC1_DAT5|||-|}
Once power has been applied, U=== SDIO slot (DWM module) -Boot bootloader will be executed and the following messages will be printed on serial console:J14 ===
<pre class="board-terminal">U-Boot 2009J14 is a Molex dual row 0.50mm pitch SlimStack™ receptacle.11-00074-g34e0d5b-dirty This connector is dedicated to the [[Wireless_Module_(Jul 17 2012 - 11:00:55DWM) [dacu| DWM add-android-0on module]].9.2]The following table reports the connector's pinout:
AM35xx{| class="wikitable" |-GP ES2!Pin# !Pin name!Function!Notes|-|1, 2|5V|||-|3, 4|3.03V|||-|5, 6, 9, 10, 19|DGND|||-|7|MMC2_CMD|||-|8|MMC2_CLK|||-|11|MMC2_DAT0|||-|12, 14, 16, 18, 20, L322|N.C.|Not connected||-165MHzDAVE Lizard board + LPDDR|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/NANDDSI_DY1|-I2C: ready|25DRAM: 256 MB|UART2_TXFlash: 32 MB|NAND: 1024 MiB|Mount optionIn: serial|-Out: serial|26Err: serial|BT_F2Die ID #7cf60001000000000160ae2d0b01e00a||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|-Net: davinci_emac_initialize|30Ethernet PHY: GENERIC @ 0x11|WIFI_ENDaVinci EMAC |Hit any key |Connected to stop autoboot: 0 DSS_DATA23/DSI_DX2|-=>|}
</pre>=== USB ports - J15 ===
Once the boot process has completedJ15 is a stacked, you'll get the default Android "desktop":dual port USB Type A connector.
[[File:Android-dacu-lock-screen.jpg|thumb|none|border|450px|Android default lock screen]]==== USB port 0 (''high speed'') ====
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 USB port 0 is mapped on the console'''lower''' USB connector. Using The following table reports the serial console doesnconnector't prevent you from using also the adb tool to access the system.s pinout:
==={| class= "Normalwikitable" mode ====|-!Pin# connect the system to Ethernet LAN (RJ45 connector, J6)# connect a 12Vcc power supply to to the power jack (JP2) !Pin name!Function!Notes|-|B1|5V_USBH_0|5V||-|B2|USB0_DM|USB0 Data -||-|B3|USB0_DP|USB0 Data +||-|B4|DGND_USBH_0||Ground|-|}
Once power has been applied, the system will boot loading the software components from the internal flash. Once the boot process has completed, you==== USB port 1 ('ll get the default Android "desktop":'full speed'') ====
You can now access USB port 1 is mapped on the system using adb'''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 ===
==== 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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