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VM-1 Application Board 3 5811
VM-1 Application Board 3 (Issue A) Data Sheet
Introduction
The 5811 is an application board for use with the VM-1 Control Module. It provides connections for modules such as the 5809 QVGA display interface and 5810 ethernet controller. To support the QVGA the board has connectors for both display and touch screen. The board also has an RS232 serial port, an optional second serial port, an I2C connector on Bus 1, and an on-board EEPROM for non-volatile data storage. Additionally all the digital and analogue channels on the VM-1 connector are available. This document applies only to Issue A of the board. Issue B has extensive extra capabilities and a slightly different layout and is better suited to QVGA use.
Serial Port 1 Serial Port 2 VEE adjust Power
GND Vout nc Vin
Contrast control
Location of Ethernet module
QVGA display connectors 101 mm Location of QVGA module Location of VM-1 controller 113 mm
4x 3.5mm Touch screen connectors 152mm 164mm I2C
Unpacking
You should have:
* 5811 Application Board. This document applies to Issue A of the board only. * Power Connector * These Instructions
WARNING: Users of Micro-Robotics Control Equipment should be aware of the possibility of a system failure, and must consider the implications of such failure. Micro-Robotics Ltd. can accept no responsibility for loss, injury, or damage resulting from the failure of our equipment. Use of our products in applications where their failure to perform as specified could result in injury or death is expressly forbidden. (c) 2004 Micro-Robotics Ltd The Old Maltings 135 Ditton Walk Cambridge CB5 8QB Doc 44306 V20041130 VM-1 Application Board 3 (Issue A) tel: +44 (0) 1223 523100 fax: +44 (0) 1223 524242 sales@microrobotics.co.uk www.microrobotics.co.uk Page 1 of 11
What You Will Need
To start using the application board you will need:
* VM-1 Control Module (5800 or 5801) with language ROM (5803) * 8 to 30V 300mA unregulated DC power supply * An RS232 serial lead to connect the 5811 to your host computer. Use a lead that would be used to connect
two PCs together (a "Null Modem" cable)
* A PC running terminal emulation software such as Hyperterminal or Tera Term Pro. * The VM-1 and Venom-SC manual set * Optionally a QVGA card (5809) or ethernet card (5810)
Serial Ports
The RS232 level shifter ICs are socketed. Leave them in if you wish to use standard RS232 voltage levels (normal with serial cables such as links to a PC). If you need to use the logic-level signals (typically for internal connection to small PCB modules and ICs), remove the RS-232 IC and use the serial channels on JP4.
Serial Port 1 RS232
Pinout
Connector: JP5
* RTS CTS nc 6 7 8 9 1 2 3 4 5 * RXD TXD * GND
* Pins 1, 4 and 6 are connected to each other on the 5811
Configuration
Serial Port 1 is already configured for you in the default startup procedure with the line: MAKE serial AsynchronousSerial(38400, 1, 1)
Serial Port 2 RS232
Pinout
Connector: JP6
* RTS CTS nc 6 7 8 9 1 2 3 4 5 * RXD TXD * GND
* Pins 1, 4 and 6 are connected to each other on the 5811
Configuration
Serial port is not created by default. You can create it with a line like this: MAKE serial AsynchronousSerial(38400, 2, 1)
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application boards
The connections for the QVGA and ethernet boards are very similar, but for practical convenience and simplicity one socket is dedicated to each type. It is possible to use both modules at once. The common module interface is described first.
Module Bus Connectors JP11, JP12
The following table describes the general module interface pinout.
Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 Signal VCC GND D1 D0 D3 D2 D5 D4 D7 D6 VCC GND A1 A0 A3 A2 A5 A4 A7 A6 A9 A8 VCC GND A11 A10 A13 A12 A15 A14 HWR/ A16 WAIT/ RD/ RESET/ SELECT/ SDA SCL VCC GND Description +5V supply Ground
Data bus
+5V supply Ground
Address bus
+5V supply Ground
Address bus
Write strobe Address bus Delays write cycle Read Strobe System Reset See below I2C data I2C clock +5V supply Ground
Implementation on the application board
SDA and SCL are from the VM-1's I2C Bus 1. The SELECT/ line is different for each module. In the Venom language, The MAKE statements for the QVGA display, touch screen and ethernet interface have parameters which select the I2C bus and the correct module's SELECT/ signal.
Ethernet Module
Connection
If an ethernet module 5811 is required, plug it into the ethernet module socket and secure it with a 6mm spacer, M2.5 screw and nut using hole MT6. A second spacer and mounting screw in MT4 is optional. Use a length of CAT5 UTP cable to connect the ethernet board to a hub or switch that will support 10Mbit operation. Exceptionally when the VM-1 is one end of a two-node network you can link the nodes directly with a UTP "crossover" cable.
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Configuration
MAKE eth Protocol("eth", 1, $d0, my_ip_address) The second and third parameter specify I2C bus 1 and the correct addressing information to select the ethernet position on the 5811 application board. See the Venom Networking Guide for more information, including the use of the my_ip_address parameter.
QVGA Module
N.B. Before powering up with a display connected, first adjust the supply voltage (see page 6) If a QVGA module 5810 is required, plug it into the QVGA module sockets. Securing via mounting holes is optional as the board is fairly well held in by the connectors and is not subject to cable pulling forces. Connect a Hitachi display type SP14Q002 or compatible to JP10. The application board's corner mounting holes enable it to be mounted directly on pillars on the display module. Other types of display can be connected via a suitable adapter to JP9, which will also work with the adapter supplied with the SP14Q002 starter kit. The Hitachi touch screen can be connected to JP14. Other electrically compatible touch screens can be adapted to connect to JP13. Consult the pinout diagrams below for interconnection details.
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JP10 - Flat Cable Display Connector
This FPC connector is compatible with the Hitachi SP14Q002 display.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 LCDD4 LCDD5 LCDD6 LCDD7 LCDPWROFF LCDFRAME LCDLINE LCDCLK VCC GND VEE GND GND Display data Display data Display data Display data H=display off, L=display on Frame clock Line clock Dot clock +5V supply -21V 1V (for Hitachi) Edge of board Pin 1 contacts at top of connector
JP10
JP9 - Generic QVGA Display Connector
This is compatible witrh the connector adapter supplied with the Hitachi SP14Q002 display starter kit. It provides all the connections available from the QVGA display driver module, including touch screen connections, and is designed to be easily adapted to the requirements of most other QVGA display hardware via a suitable intermediate connector adapter. For more information on the signal usage see the QVGA (5809) data sheet. 0.1" pin header 2 x 14 pins
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 D0 D1 D2 D3 D4 D5 D6 D7 GND LCDPWROFF LCDCLK LCDFRAME GPIO0 LCDLINE LCDPWRON GND VCC VEE VADJ GND VBATT1 VBATT2 IN1 IN2 X+ XY+ YLCDD4 LCDD5 LCDD6 LCDD7
Pin 1 H=display off, L=display on Dot clock Frame clock General purpose I/O Line clock L=display off, H=display on Negative supply: set with R8 and LK1 Contrast voltage: set with R7 Edge of board
JP9
Pin 2
Analogue inputs (see QVGA documenation)
Touch Screen Inputs (see QVGA documentation)
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JP14 - Touch Screen 1
This 4-way FPC connector is compatible with the touch screen fitted to the Hitachi SP14Q002.
JP14
1234 X+ Y+ X- Y-
JP13 - Touch Screen 2
The same touch screen inputs are also provided on this 4 pin header.
JP13
1234 X+ X- Y+ Y-
Configuration
MAKE lcdpower Digital(22) lcdpower.On The above two lines are needed to turn the power on to the DC-DC converter which provides VEE. The required timing of this relative to initializing the display controller depends on the display hardware manufacturer - in some cases this may need to be done after creating the display object. MAKE display GLCD (3,320,240, $e0) The value of the last parameter selects the correct module when addressing the GLCD on the application board. MAKE t Touchscreen(0, 1, The second parameter selects I C bus 1.
2
144)
Display Supply and Contrast Voltage Adjustment
QVGA displays require a negative voltage supply. The voltage range required varies with the make of display, and the exact optimum voltage may vary from one unit to another as well as with temperature. Depending on the display specification the voltage may be referenced to ground or to the +5 volt rail. Additionally a contrast adjustment voltage is needed. Sometimes this is achieved by varying the supply voltage itself, otherwise by a separate control voltage supplied though another pin on the connector. The application board can provide a negative rail VEE of 0 to -24 volts referenced to either ground or the +5V rail, adjustable and with a low source impedance from an emitter follower buffer. A contrast adjustment voltage derived from VEE via a 10k pot R7 is also available. R8 controls the VEE voltage. Set this before adjusting R7. LK1: link pins 1-2 for VEE referenced to VCC; link 2-3 for VEE referenced to GND. R7 sets the contrast adjustment voltage VADJ. Set VEE with R8 before adjusting R7. To avoid damage do not connect the display initially and follow this sequence: 1. Set VEE and the link LK1 for the correct voltage. 2. Power off. 3. Connect the display. 4. Power on. 5. Re-adjust VEE (R8) as it may have dropped slightly because of the current drain of the display. 6. If the display uses VADJ, adjust R7 for best contrast.
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I2C Buses
There are two I2C buses available. Bus 1 comes out on connector JP7 which is compatible with other MicroRobotics products. Bus 2 is available though 2 pins on JP4.
I2C Bus 1
Connector: JP7 5 way 0.1" header
(nc) Vcc GND SCL Ch 10 SDA Ch 9
The following I2C addresses are assigned: 144 160 162 164 Touch Screen (if QVGA module fitted) Clock/Calendar on VM-1 EEPROM on application board EEPROM on ethernet module (if fitted)
I2C Bus 2
JP4 pin 25: SDA (Ch 23) JP4 pin 24: SCL (Ch 24)
Configuration
MAKE net I2CBus MAKE net I2CBus(1) ; create bus 1 ; create bus 1 (same as above)
MAKE net2 I2CBus(2) ; create bus 2
VM-1 Expansion Connector JP4
A pattern of pads suitable for a 0.1" double row header marked JP4 is provided for external connections to the VM-1 channels. The pin numbers on the connector have the same functions as those on JP2 on the VM1 - see the VM-1data sheet for pin assignments and notes on channel use. All are available, with the following exceptions or limitations: JP4 Pin 24 26,28 30,32,34,36 Use WAIT/ I2C Bus 1 Serial port 1 Notes Not connected to JP4; used by QVGA module Note I2C bus 1 is used on board and also available on JP7 Normally used for terminal access via JP5. If you really want to use serial port 1 at logic levels or use these channels for general digital I/O, remove IC U3 from its socket. If you wish to use serial port 2 at logic levels instead of RS-232 voltages, or use these channels for general digital I/O, remove IC U4 from its socket.
29,31,33,35
Serial port 2
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EEPROM
The EEPROM is at address 162 on I2C Bus 1. It contains 256 bytes of non-volatile rewritable memory typically used by applications for storing configuration information.
Configuration
MAKE eeprom SafeData(0, 1, 162)
Power Supply
The 5811 may be powered from a supply voltage range of 7 to 30 volts unregulated DC. The current consumption depends on the modules fitted and other devices attached, and whether the VM-1 processor is idle. There is also a regulated 5V output for powering external circuits. Drawing a high current or using a high input supply voltage will cause high dissipation in the regulator heatsink. The heatsink and regulator are positioned so that they can be attached to an external heatsink or casing if neecessary. Note that the regulator tab and heatsink are connected to ground. The application board will draw typically 100 - 150mA by itself. The ethernet card draws approximately 80mA extra when fitted. The QVGA display draws approximately 40mA extra when fitted.
Pinout
Connector JP3 - Plug Provided
4-way pluggable screw terminal Vin nc Vout GND
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Schematics
Main VM-1 and Module interface, Power
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Serial Schematic
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LCD connection schematic
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