Eurotech Appliances PXA255 manual

31 VIPER / VIPER-Lite PXA255 RISC based PC/104 Single Board Computer T echnical Manual[...]

VIPER Technical Manual ISO 9001 FM12961 Definitions Eurotech is the trading na me for Eurotech Ltd. Disclaimer The information in this manual has been car efully che cked and is believed to be accurate. Eurotech assumes no responsibility for any infri ngements of patent s or other ri ghts of third parties, w hich may result from its use. Eurotech a[...]

VIPER Technical Manual Contents © 2007 Eurotech Ltd Issue E 3 Contents Introduction ........................................................................................................................................ 4 VIPER ‘at a glance’ ......................................................................................................[...]

VIPER Technical Manual Introduction © 2007 Eurotech Ltd Issue E 4 Introduction The VIPER is an ultra low power , PC/104 compatible, single board computer available in two standard variant s: • VIPER, based on the 400MHz PXA255 XScale processor . • VIPER-Lite, based on the 200MHz PXA255 XScale processor . The PXA255 is an implementation of the [...]

VIPER Technical Manual Introduction © 2007 Eurotech Ltd Issue E 5 VIPER ‘at a glance’ Five Serial Ports Jumpers 10/100Bas eTX Ethernet Audio – In/Out/MIC/AMP Ethernet LEDs USB TFT/ST N panel CompactFLASH (CF+) TPM Ta mper (optional) Powe r (inc reset input) Battery 400MHz PXA255 processo r 8/16-bit PC/104 interface JTAG Intel StrataFLASH Jum[...]

VIPER Technical Manual Introduction © 2007 Eurotech Ltd Issue E 6 VIPER-Lite ‘at a glance’ Three Serial Ports 10/100Bas eTX Ethernet Ethernet LEDs TFT/ST N panel CompactFLASH (CF+) Powe r (inc reset input) Battery 200MHz PXA255 processo r JTAG Intel StrataFLASH Jumpers USB Client Digital I/O[...]

VIPER Technical Manual Introduction © 2007 Eurotech Ltd Issue E 7 VIPER features Microprocessor • PXA255 400MHz (VIPER) or 200MHz (VIPER-Lite) RISC processor . Cache • 32K data cache, 32K instruction cache, 2K mini dat a cache. System memory • 64MB un-buffered 3.3V SDRAM. Silicon disk • Up to 16/32MB Intel S trataFLASH (with FLASH access L[...]

VIPER Technical Manual Introduction © 2007 Eurotech Ltd Issue E 8 Network support • SMSC LAN91C1 1 1 10/100BaseTX Ethernet controller . • One 10/100BaseTX NIC port. Trusted Platform Module (TPM) [optional] • Atmel A T97SC3201 TPM security , with full TC G/TCP A V1.1b compatibility . • Includes crypto accelerator cap able of computing a 102[...]

VIPER Technical Manual Introduction © 2007 Eurotech Ltd Issue E 9 VIPER support products The VIPER supports the following product s: • VIPER-UPS (Uninterruptible Power Supply) The VIPER-UPS serves as a 5V DC power supply and battery back up system for the VIPER. The UPS accept s between 10 – 36 VDC (10-25V AC) input and generates the +5V suppl[...]

VIPER Technical Manual Introduction © 2007 Eurotech Ltd Issue E 10 • CYCLOPS The CYCLOPS is a rugged VIPER display terminal. The enclosure can be configured to suit a complete range of embedded applicatio ns with LCD display and touchscreen. • VIPER-ICE (Industrial Compact Enclosure) development kit s The VIPER-ICE is a simple low cost alumini[...]

VIPER Technical Manual Introduction © 2007 Eurotech Ltd Issue E 11 • Wind River VxWorks 5.5 development kit Features of this kit are: - 400MHz PXA255 processor with 64MB DRAM & 32MB Flash memory . - VxWorks BSP for T ornado 2.2.1/VxWorks 5.5.1/Wind ML 3.0.2. - Pre-configured build of VxW orks, tailored specifically for the VIPER, pre-loaded [...]

VIPER Technical Manual Introduction © 2007 Eurotech Ltd Issue E 12 Product handling and environmental compliance Anti-static handling This board contains CMOS devices that could be damaged in the event of st atic electricity discharged through them. At all times, please observe anti-static precautions when handling the board. This includes storing[...]

VIPER Technical Manual Introduction © 2007 Eurotech Ltd Issue E 13 Conventions Symbols The following symbols are used in this guide: Symbol Explanation Note - information that requires your attention. T ip - a handy hint that may provide a useful alternative or save time. Caution - proceeding with a course of action may damage your equipment or re[...]

VIPER Technical Manual Introduction © 2007 Eurotech Ltd Issue E 14 Tables With tables such as that shown below , the white cells show information relevant to the subject being discussed. Grey cells are not relevant in the current context. Byte lane Most Significant Byte Least Significant Byte Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Field - - - -[...]

VIPER Technical Manual Getting started © 2007 Eurotech Ltd Issue E 15 Getting started Depending on the development kit purchased, a Quickst art Manual is provided for Windows CE, embedded Linux or VxWorks to enable users to set-up an d start using the board. Please read the relevant manual and follow the step s defining the set-up of the board. On[...]

VIPER Technical Manual Getting started © 2007 Eurotech Ltd Issue E 16 Using the audio features There are four audio interfaces supported on the VIPER: amp out, line out, line in and microphone. The line in, line out and amp interfaces support stereo signals and the microphone provides a mono input. The amplified output is suit able for driving an [...]

VIPER Technical Manual Getting started © 2007 Eurotech Ltd Issue E 17 Using the PC/104 expansion bus PC/104 modules can be used with the VIPER to add extra functionality to the system. This interface support s 8/16 bit ISA bus style peripherals. Eurotech Ltd has a wide range of PC/104 modules, which are comp atible with the VIPER. These include mo[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 18 Detailed hardware description The following section provides a det ailed description of the functions provided by the VIPER. This information may be required during development af ter you ha ve started adding extra peripherals or are st arting to use some of the em[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 19 VIPER address map PXA255 chip select Physical address Bus/register width Description - 0xA4000000 – 0xFFFFFFFF - Reserved SDCS0 0xA0000000 – 0xA3FFFFFC 32-bit SDRAM, IC2&3 - 0x4C000000 – 0x9FFFFFFF - Reserved NA 0x48000000 – 0x4BFFFFFF 32-bit Memory Con[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 20 T r anslations made by the MMU For details of translation s made by t he MMU by Redboot for embedded Linux, please refer to the VIPER Embedded Linux AEL T echnical Manual. For details of translation s made by t he MMU by Redboot for VxWorks, please refer to the VIP[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 21 PXA255 processor The PXA255 is a low power ARM (version 5TE) instruction set compliant RISC processor . The PXA255 does not include a floating-point unit. The device does, however , cont ain a DSP co-processo r to enhance multimedia applications. The VIPER is fitte[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 22 PXA255 GPIO pin assignments The following table summarizes the use of the 85 PXA255 GPIO pins, their direction, alternate function and active level. For embedded Linux the GPIO pins are setup by Redboot. Under VxWorks and Windows CE, they are setup by the OS and no[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 23 GPIO No AF Signal name Dir Active Sleep Function See section… 14 0 FLASH_ ST A TUS Input NA Input Bootloader FLASH S tatus, Ready / nBusy 49H Interrupt assignments (page 305H 30 ) and 306H FLASH memory/silicon disk (page 307H 27 ) 15 2 CS1 Output Low Hi-Z Chip Se[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 24 GPIO No AF Signal name Dir Active Sleep Function See section… 34 1 RXD1 Input NA Input COM1 Receive Data 35 1 CTS1 Input NA Input COM1 Clear T o Send 36 1 DCD1 Input NA Input COM1 Data Carrier Detect 37 1 DSR1 Input NA I nput COM1 Data Sender Ready 38 1 RI1 Input[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 25 GPIO No AF Signal name Dir Active Sleep Function See section… 58 2 LCD_D0 Output NA 0 LCD Data Bit 0 59 2 LCD_D1 Output NA 0 LCD Data Bit 1 60 2 LCD_D2 Output NA 0 LCD Data Bit 2 61 2 LCD_D3 Output NA 0 LCD Data Bit 3 62 2 LCD_D4 Output NA 0 LCD Data Bit 4 63 2 L[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 26 Real time clock There are two RTCs on the VIPER. Under embedded Linux and VxW orks the internal RTC of the PX A255 should only be used for power management events, and an external Dallas DS1338 RTC should be used to keep the time and date. Under Windows CE the time[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 27 Memory The VIPER has four types of memory fitted: • 1MB of bootloader FLASH containing Redboot to boot embedded Linux or VxWorks, or Eboot to boot Windows CE. • A resident FLASH disk cont aining the OS and application images. • SDRAM for system me mory . • [...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 28 Static RAM The VIPER has a 256KB SRAM device fitted, arranged as 256Kbit x 8-bits. Access to the device is on 16-bit boundaries; whereby the least significant byte is t he SRAM data and the 8-bits of the most significant byte are don’t care bit s. The reason for [...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 29 Interrupt configuration and reset register [ICR] Byte lane Most Significant Byte Least Significant Byte Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Field - - - - - - - - - - - - CF_ RST R_DIS AUTO _ CLR RETRIG Reset X X X X X X X X 0 0 0 0 0 0 0 0 R/W - - - - - - - -[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 30 Interrupt assignments Internal interrupts For details on the PXA255 interrupt controller and internal peripheral interrupts please see the PXA255 Developer ’s Manual on the Development Kit CD. External interrupts The following table list s the PXA255 signal pins [...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 31 PC/104 interrupt register [PC104I1] Byte lane Most Significant Byte Least Significant Byte Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Field - - - - - - - - IRQ12 IRQ11 IRQ10 IRQ7 IRQ6 IRQ5 IRQ4 IRQ3 Reset X X X X X X X X 0 0 0 0 0 0 0 0 R/W - - - - - - - - R/W Addre[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 32 ICR Bit Functions Bit Name V alue Function 0 No interrupt retrigger (embedded Linux and VxWorks) 0 RETRIG 1 Interrupt retrigger (Windows CE) 0 No auto clear interrupt / T oggle GPIO1 on new interrupt (embedded Linux and VxWorks) 1 AUTO_CLR 1 Auto clear interrupt / [...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 33 PC/104 interrupts under Windows CE Write 0x2 to the ICR Register so that the first PC/104 interrupt source ca uses the PXA255 PC/104 interrupt pin GPIO1 to receive a low to high transition. When the first PC/104 interrupt occurs the Interrupt service routine will s[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 34 Flat panel display support The PXA255 processor contains an integrated LCD display controller that permit s 1, 2 and 4-bit grey-scale, and 8 or 16-bit colour pixels. A 256-byte palette RAM provides flexible colour mapping capabilitie s. The LCD display controller s[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 35 TFT panel data bit mapping to the VIPER Panel data bus bit 18-bit TFT 12-bit TFT 9-bit TFT FPD 15 R5 R3 R2 FPD 14 R4 R2 R1 FPD 13 R3 R1 R0 FPD 12 R2 R0 - FPD 1 1 R1 - - GND R0 - - FPD 10 G5 G3 G2 FPD 9 G4 G2 G1 FPD 8 G3 G1 G0 FPD 7 G2 G0 - FPD 6 G1 - - FPD 5 G0 - -[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 36 STN panel data bit mapping to the VIPER Panel data bus bit Dual scan colour STN Single scan colour STN Dual scan mono STN FPD 15 DL7(G) - - FPD 14 DL6(R) - - FPD 13 DL5(B) - - FPD 12 DL4(G) - - FPD 1 1 DL3(R) - - FPD 10 DL2(B) - - FPD 9 DL1(G) - - FPD 8 DL0(R) - - [...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 37 T ypically the power up sequence is as follows (please che ck the datasheet for the particular p anel in use): 1 Enable display VCC. 2 Enable flat p anel interface. 3 Enable backlight. Power down is in reverse order . LCD backlight enable The PXA255 GPIO9 pin contr[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 38 STN BIAS voltage The VIPER provides a negative and a positive bias voltage for STN type displays. The negative and positive bias voltages are set t o –22V and +22V respectively . Pin connections for these can be found in the section PL3 – LCD connector , p age [...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 39 VIPER-FPIF1 connectors LK1 – TFT clock delay selection It has been found that some TFT displays require a delay on the clock. If this is required fit the jumper in position A; if not, then fit in position B. PL1 – VIPER LCD cable connector Connector: Oupiin 321[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 40 PL2 – Generic LCD connector Connector: T aicom TI34BHS, 34-way , 2.54mm (0.1”) x 2.54mm (0.1”) straight-boxed header Mating connector: Fujitsu FCN-723-B034/2 Mating connector crimps: Fujit su FCN-723J-AU/Q. (As it is possible to connect a crimp type connector[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 41 PL3 – Direct connection to a NEC NL3224BC35-20 5.5inc h 320x240 TFT display Connector: Oupiin 2345-33TD2/SN Mating cable: Eunsung 0.5x33x 190xAx0.035x0.3x5x5x10x10 Pin Signal name Pin Signal name 1 GND 18 FPD 10 2 PCLK 19 GND 3 LCLK (HSYNC) 20 GND 4 FCLK (VSYNC) [...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 42 PL4 – Backlight inverter connector Connector: FCI 76384-407LF Mating connector: FCI 65240-007LF Mating connector crimps: FCI 76357-401LF Pin Signal name 1 GND 2 PWM0 3 BKLEN# 4 GND 5 GND 6 BKLSAFE 7 BKLSAFE PL5 – STN Bias connector Connector: FCI 76384-404LF Ma[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 43 FPIF-LVDS-TX details The FPIF-L VDS-TX enables L VDS displays to be connected to the VIPER. The FPIF-L VDS-TX in combination with the FPIF-L VDS-RX allows the VIPER to drive a TFT or STN LCD flat p anel display up to 10 meters away . When using the FPIF-L VDS-TX, e[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 44 FPIF-LVDS-TX connectors JP1 – TX strobe selection T his link select s the edge of the TX strobe. If the jumper is fitted (default) then the TX S trobe shall be on the rising edge. If no jumper is fitted then the TX S trobe shall be on the falling edge. JP2 – Ca[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 45 J1 – VIPER LCD cable connector Connector: Oupiin 3215-40CSB/SN, 40-way , 1.27mm (0.05”) x 2.54mm (0.1”) straight- boxed header Mating connector: Oupiin 1203-40GB/SN Pin Signal name Pin Signal name 40 HSYNC 39 CLOCK 38 GND 37 GND 36 DE 35 VSYNC 34 GND 33 GND 3[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 46 J2 – LVDS Hirose connector Connector: Hirose DF13-20DP-1.25V(55) , 20-way , 1.27mm (0.05”) double row straight pin header FPIF-L VDS-TX Hirose mating connector: Hirose DF13-20DS-1.25C FPIF-L VDS-TX Hirose mating connector crimps: Hirose DF13-2630SCF L VDS panel[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 47 J3 – LVDS MDR connector Connector: 3M 10220-55G3PL, 20-way , 1.27mm (0.05”) Board mount Through-Hole Right Angle Recept acle – Shielded Mating cable: 3M 14520-EZAB-XXX-0EX , 3M™ Mini D Ribbon (MDR) Cable Assembly) Pin Signal name Pin Signal name 1 LV D S _ [...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 48 FPIF-LVDS-RX details The FPIF-L VDS-RX in combination with the FPIF-L VDS-TX allows the VIPER to drive a TFT or STN LCD flat p anel display up to 10 meters away . The connectors on the following p ages are shown in the same orientation as the picture above, unless [...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 49 FPIF-LVDS-RX connectors JP1 – LCD power selection T his link select s the voltage supply of the LCD panel. Fit the jumper in position 3.3V (default) to supply 3.3V to the LCD panel, or in position 5V to supply 5V to the LCD panel. JP2 – Backlight power selectio[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 50 J1 – VIPER LCD cable connector Connector: Oupiin 3215-40CSB/SN, 40-way , 1.27mm (0.05”) x 2.54mm (0.1”) straight- boxed header Mating connector: Oupiin 1203-40GB/SN Pin Signal name Pin Signal name 40 HSYNC 39 CLOCK 38 GND 37 GND 36 DE 35 VSYNC 34 GND 33 GND 3[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 51 J2 – LVDS Hirose connector Connector: DF13-20DP-1.25V(55), 20-way , 1.27mm (0.05”) double row straight pin header FPIF-L VDS-RX Hirose mating connector: Hirose DF13-20DS-1.25C FPIF-L VDS-RX Hirose mating connector crimps: Hirose DF13-2630SCF Eurotech Ltd recomm[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 52 J3 – LVDS MDR connector Connector: 3M 10220-55G3PL, 20-way , 1.27mm (0.05”) Board mount Through-Hole Right Angle Recept acle – Shielded Mating cable: 3M 14520-EZAB-XXX-0EX , 3M™ Mini D Ribbon (MDR) Cable Assembly) Pin Signal name Pin Signal name 1 LV D S _ [...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 53 FPIF-CRT details The FPIF-CRT allows the VIPER to drive a CRT Monitor or an analogue LCD flat panel. Sync on green and composite sync monitors are not supported. The connectors on the following p ages are shown in the same orientation as the picture above, unless o[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 54 FPIF-CRT connectors J1 – VIPER LCD cable connector Connector: Oupiin 3215-40CSB/SN, 40-way , 1.27mm (0.05”) x 2.54mm (0.1”) straight- boxed header Mating connector: Oupiin 1203-40GB/SN (available from Eurotech Ltd on request) Pin Signal name Pin Signal name 4[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 55 J2 – CRT connector Connector: Oupiin 7916-15F A/SN, 15-way , female, high density , right-angled D-Sub. Pin Signal name Pin Signa l name Pin Signal name 1 RED 6 RED GND 1 1 NC 2 GREEN 7 GREEN GND 12 NC 3 BLUE 8 BLUE GND 13 HSYNC 4 NC 9 5V_VGASAFE 14 VSYNC 5 GND 1[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 56 Audio A National Semiconductor LM4549 AC’97 audio CODEC is used to support the audio features of the VIPER. Audio inputs supported by the LM4549 are stereo line in and a mono microphone input. The LM4549 provides a stereo line out that can also be amplified by a [...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 57 General purpose I/O Eight general-purpose input lines and eight general-purpose output lines are provided on connector PL9. T o read from IN[0:7], read the least significant byte located at of fset 0x500000 from CS5 (0x14000000) to sample the 8 inputs from PL9. VIP[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 58 T o write to OUT[0:7], write to the following PXA255 processor GPIO lines to drive the outputs. VIPER outputs PXA255 GPIO OUT0 GPIO20 OUT1 GPIO21 OUT2 GPIO22 OUT3 GPIO23 OUT4 GPIO24 OUT5 GPIO25 OUT6 GPIO26 OUT7 GPIO27 The PXA255 GPIO lines must be configured using [...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 59 The general-purpose inputs are 5V tolerant, and the outputs can sink and source up to 24mA @ 3.3V . OUT0B is an inverted OUT0 signal, and is driven to 3.3V , which provides compatibility with the VIPER-UPS. The following general purpose IO lines are used by the VIP[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 60 USB host interface There are two USB interfaces on the VIPER. These comply with the Universal Serial Bus S pecification Rev . 1.0a, supporting data transfer at full-speed (12 Mbit/s) and low- speed (1.5 Mbit/s). There are four signal lines associated with each USB [...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 61 USB client interface The VIPER provides one USB 1.1 client interface. The connection between PL17 and a USB T ype A connector is det ailed in the following illustration: 1 2 3 4 GND (BLACK) USBC+ (GREEN) USBC- (WHITE) USBC - USBC + GND VCC PL17 USB Type A Plug[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 62 10/100BaseTX Ethernet An SMSC LAN91C1 1 1 Ethernet controller provides a single 10/100BaseTX interface. The device provides an embedded PHY and MAC, and complies with the IEEE802.3u 10/100BaseTX and IEEE 802.3x full-duplex flow control specifications. Configuration[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 63 Ethernet signal mapping between VIPER and Ethernet breakout connectors Ethernet breakout PL1 – 2x4-way header Ethernet breakout PL3 - RJ45 VIPER PL1 – 10/100BaseTX Ethernet connecto r Pin Signal name Pin Signal name Pin Signal name 1 Tx+ 1 Tx+ 1 Tx+ 2 TX- 2 TX-[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 64 Serial COMs ports There are five high-speed, fully functionally compatible 16550 serial U ART s on the VIPER. Four of these channels can be used as st andard RS232 serial interfaces, and the remaining one (COM5) can be configured as RS422 or RS485. Port Address IRQ[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 65 COM4 – RS232 interface Supported on Channel 0 of an external Exar XR16C2850 with 128bytes of Tx and Rx FIFOs, and buffered to RS232 levels with ±15kV ESD protection. The m aximu m baud rate on this channel is 1 15.2kb/s. On special request this can be increa sed[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 66 Typical RS422 and RS485 connection RS485 MULTI-DROP RS422 POINT-TO-POINT RS422 MULTI-DROP Number of Wires 5 Transmitters Enabled always Receivers Enabled al ways Duplex Mode full LK6 B LK7 B Number of Wires 5 Transmitters Enabled active RTS Receivers Enabled al way[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 67 PC/104 interface The VIPER PC/104 interface is emulated from the PXA255 PCMCIA interface to support 8/16 bit ISA bus style signals. As the interface is an emulation the VIPER does not support some PC/104 features. Please refer to the 72H Unsupported PC/104 interfac[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 68 VIPER PC/104 interface details The PC/104 bus signals are comp atible with the ISA bus electrical timing definitions. For details of PC/104 Interrupt s please see 374H PC/104 interrupts , p age 375H 30 . All signals (except interrupt s) between the PXA255 and the P[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 69 PC/104 16-bit I/O read/write access cycles PC/104 8-bit memory write access cycle 8-bit memory read access cycles are not supported by the PXA255 PCMCIA controller for common memory space. AEN BALE SBHE A<0:15> IOCS16 IOCHRDY IOR/IOW DATA (read) DATA ( write [...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 70 PC/104 16-bit memory read/write access cycles Unsupported PC/104 interface features The PC/104 bus features not supported by the VIPER are as follows: • PC/104 IRQ9, IRQ14 and IRQ15 are not available under Windows CE as all interrupt sources are fully utilized. T[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 71 I 2 C The PXA255 I 2 C interface is brought out to the COMs connector PL4, see 73H PL4 – COMS ports , p age 376H 89 , for connection det ails. The I 2 C unit support s a fast mode operation of 400Kbit s /s and a st andard mode of 100Kbits/s. Fast-mode devices are[...]

VIPER Technical Manual Detailed hardware description © 2007 Eurotech Ltd Issue E 72 JT AG and debug access Debug access to the PXA255 processor is via the JT AG connector PL10. The Macraigor 76H Wiggler and EPI 77H Majic MX probe have been used to debug the PXA255 processor on the VIPER. There are many other debug tools that can be interfaced to t[...]

VIPER Technical Manual Power and power management © 2007 Eurotech Ltd Issue E 73 Power and power management Power supplies The VIPER is designed to operate from a single +5V ±5% (4.75V to +5.25V) supply . The power connector PL16 has a +12V connection defined, but is not required for the VIPER under normal operation. It can be used to supply +12V[...]

VIPER Technical Manual Power and power management © 2007 Eurotech Ltd Issue E 74 Power management All VIPER power-down features and alteration of PXA255 operating frequency are fully supported under Embedded Linux and VxWorks. Windows CE currently provides no power management support. T o simplify the power consumption estimation of the VIPER, the[...]

VIPER Technical Manual Power and power management © 2007 Eurotech Ltd Issue E 75 Processor current estimations The current values in the t ables below are referenced from running the VIPER at 400MHz in performance mode whilst the VIPER is idle. The positive values (not shown in bracket s) are the current saving by running the VIPER at slower frequ[...]

VIPER Technical Manual Power and power management © 2007 Eurotech Ltd Issue E 76 Current saving from 5V when proc essor core is in power saving mode Processor Vcore (V) 400MHz CCCR=0x241 300MHz CCCR=0x321 200MHz CCCR=0x221 100MHz CCCR=0x121 Asleep Active 1.29 -99mA ±20mA - - - - Active 1.1 - -46mA ±20m A - - - Active 1.0 6 - - -32mA ±20mA -25m [...]

VIPER Technical Manual Power and power management © 2007 Eurotech Ltd Issue E 77 Power savings Use the table below to estimate power savings t hat can be achieved by shutting down features of the VIPER, or putting the VIPER to sleep. Power saving mode Performance mode CPU Ethernet USB Audio Serial Current saving ±3mA To t a l current ±3mA To t a[...]

VIPER Technical Manual Power and power management © 2007 Eurotech Ltd Issue E 78 External peripheral device power estimations T ake into account any external peripherals for your application, such as: • USB devices: keyboard, memory stick and mouse. • CompactFLASH socket: Comp actFL ASH memory or Microdrive. • Flat panel display: TFT logic +[...]

VIPER Technical Manual Power and power management © 2007 Eurotech Ltd Issue E 79 Power estimate examples Example 1: VIPER [Linux] asleep (microprocesso r in sleep mode and every power saving option enabled) In this case, the power consumed by the respective categories is: • VIPER current (Linux default) = 334mA ±3mA. • Power saving = 285mA (a[...]

VIPER Technical Manual Power and power management © 2007 Eurotech Ltd Issue E 80 Example 3: VIPER [Windows CE] at 400MHz in pow er saving mode + LCD with backlight on + 64MB FlashDio™ USB memory stick In this case, the power consumed by the respective categories is: • VIPER current (Windows CE default) while idle = 334mA ±3mA - 9mA = 325mA ±[...]

VIPER Technical Manual Power and power management © 2007 Eurotech Ltd Issue E 81 Processor power management The power manager in the PXA255 offers the ability to disable the clocks to the different internal periphe rals. By default, all clocks are enabled after reset. T o reduce power consumption disable the clocks for any unused peripherals. The [...]

VIPER Technical Manual Power and power management © 2007 Eurotech Ltd Issue E 82 T o communicate with the VCORE DAC, use the following pins to emulate the L TC1659 interface: GPIO L TC1659 DAC pin function GPIO6 Data GPIO1 1 Clock GPIO19 Chip Select Before putting the PXA255 into sleep mode, ensure the R_DIS bit in the ICR register is set to ‘1?[...]

VIPER Technical Manual Power and power management © 2007 Eurotech Ltd Issue E 83 UART power management COM4 and COM5 are generated from an external Exar XR16C2850 DUART . This device supports a sleep mode. By e nabling this feature the DUAR T enters sleep mode when there are no interrupt s pending. Please see the XR16C2850 dat asheet on the Develo[...]

VIPER Technical Manual Power and power management © 2007 Eurotech Ltd Issue E 84 Audio power management The audio interface support s the AC’97 low power modes. Shutting down the digit al and analogue interfaces can reduce consumption by up to 38mA ±3mA (190mW ±15mW). T o shut down the AC’97 Codec, the sof tware must write to the relevant bi[...]

VIPER Technical Manual Connectors, LEDs and jumpers © 2007 Eurotech Ltd Issue E 85 Connectors, LEDs and jumpers The following diagram shows the location of the connectors, LEDs and jumpers on the VIPER: PL6 PL4 JP1 PL2 PL1 PL17 PL9 JP2 PL7 PL5 PL3 The connectors on the following p ages are shown in the same orientation as the picture above, unless[...]

VIPER Technical Manual Connectors, LEDs and jumpers © 2007 Eurotech Ltd Issue E 86 Connectors There are 13 connectors on the VIPER for accessing external devices: Connector Function Connector details in section… PL1 10/100BaseTX Ethernet interface 404H PL1 – 10/100BaseTX Ethernet connector , page 405H 87 PL2 Ethernet controller status LEDs 406[...]

VIPER Technical Manual Connectors, LEDs and jumpers © 2007 Eurotech Ltd Issue E 87 PL1 – 10/100BaseTX Ethernet connector Connector: Oupiin 2015-2X4GD/SN, 8-way , 2.54mm (0.1”) x 2.54mm (0.1”) dual row header Mating connector: FCI 71600-008LF Pin Signal name Pin Signal name 1 TX+ 2 TX- 3 RX+ 4 NC 5 NC 6 RX- 7 NC 8 LANGND PL2 – Ethernet stat[...]

VIPER Technical Manual Connectors, LEDs and jumpers © 2007 Eurotech Ltd Issue E 88 PL3 – LCD connector Connector: Oupiin 3214-40C00RBA/SN, 40-way , 1.27mm (0.05”) x 2.54mm (0.1”) ri ght angled boxed header Mating connector: Oupiin 1203-40GB/SN Pin Signal name Pin Signal name 1 BLKEN# 2 BLKSAFE 3 GND 4 GND 5 NEGBIAS 6 LCDSAF E 7 GPIO16/PWM0 8[...]

VIPER Technical Manual Connectors, LEDs and jumpers © 2007 Eurotech Ltd Issue E 89 PL4 – COMS ports Connector: Oupiin 3012-40GRB/SN, 40-way , 2.54mm (0.1”) x 2.54mm (0 .1”) dual row IDC boxed header Mating connector: FCI 71600-040LF Pin Signal name Pin Signal name 1 SCL (I 2 C) 2 SDA (I 2 C) 3 GND (I 2 C) 4 3.3V (I 2 C) 5 TX5+ (RS422) (TX5+/[...]

VIPER Technical Manual Connectors, LEDs and jumpers © 2007 Eurotech Ltd Issue E 90 PL5 – CompactFLASH connector Connector: 3M N7E50-N516RB-50, 50-way CompactFLASH T ype II connector Pin Signal name Pin Signal name 26 /CD1 1 GND 27 D1 1 2 D03 28 D12 3 D04 29 D13 4 D05 30 D14 5 D06 31 D15 6 D07 32 /CE2 7 /CE1 33 /VS1 (GND) 8 A10 34 /IORD 9 /OE 35 [...]

VIPER Technical Manual Connectors, LEDs and jumpers © 2007 Eurotech Ltd Issue E 91 PL6 – Audio connector Connector: Oupiin 2015-2X6GDB/SN, 12-way , 2.54mm (0.1”) x 2.54mm (0.1”) dual row header Mating connector: FCI 71600-014LF (with pins 13 and 14 blanked of f) Pin Signal name Pin Signal name 1 LEFT IN 2 LEFT OUT 3 GND 4 GND 5 RIGHT IN 6 RI[...]

VIPER Technical Manual Connectors, LEDs and jumpers © 2007 Eurotech Ltd Issue E 92 PL8 – TPM Tamper detect connector (optional) Connector: JST B2B-ZR(LF)(SN), 2-way , single row , 1.5 mm (0.06”) Shrouded Header Mating housing: JST ZH R-2 Mating housing crimps: JST SZH-002T -P0.5 Pin Signal name Pin Signal name 1 VCC_BACKUP 2 TPM_T AMPER_DETECT[...]

VIPER Technical Manual Connectors, LEDs and jumpers © 2007 Eurotech Ltd Issue E 93 PL10 – JTAG connector Connector: Oupiin 201 1-2x5GSB/SN, 10-way , 2.54mm (0.1”) x 2.54mm (0.1”) dual row header Mating connector: FCI 71600-010LF Pin Signal name Pin Signal name 1 VCC3 2 NC 3 GND 4 nTRST 5 NC 6 TDI 7 TDO 8 TMS 9 TCLK 10 SRST[...]

VIPER Technical Manual Connectors, LEDs and jumpers © 2007 Eurotech Ltd Issue E 94 PL11 & PL12 – PC/104 connectors Connectors: • Astron 25-1201-232-2G-R, 64-way , 2.54mm (0.1”) x 2.54mm (0.1”) S tackthrough PC/104 compatible connector (row A & B) • Astron 25-1201-220-2G-R, 40-way , 2.54mm (0.1”) x 2.54mm (0.1”) S tackthrough [...]

VIPER Technical Manual Connectors, LEDs and jumpers © 2007 Eurotech Ltd Issue E 95 PL16 – Power connector Connector: Molex 22-05-7058, 5-way , 2.54mm (0.1") Pitch KK® Header - Right Angle Friction Lock 7395 series connector Mating connector: Molex 22-01-2055, 5-way , 2.54mm (0.1") Pitch KK® Crimp T erminal Housing 2695 series connect[...]

VIPER Technical Manual Connectors, LEDs and jumpers © 2007 Eurotech Ltd Issue E 96 JP1 – RS485/422 configuration jumpers Connector: Oupiin 201 1-2x5GSB/SN, 10-way , 2.54mm (0.1”) x 2.54mm (0.1”) dual row through-hole unshrouded header Ref Pin Signal name Pin Signal name 1 PL4_RX5- 2 PL4_RX5+ 3 RX5- 4 RX5+ 5 PL4_RX5/TX5- 6 PL4_RX5/TX5+ 7 PL4_[...]

VIPER Technical Manual Connectors, LEDs and jumpers © 2007 Eurotech Ltd Issue E 97 Status LEDs There is a single status LED on the VIPER, which indicates FLASH access to the bootloader FLASH or the main FLASH memory/silicon disk.[...]

VIPER Technical Manual Connectors, LEDs and jumpers © 2007 Eurotech Ltd Issue E 98 Jumpers There are seven user selectable jumpers on the VIPER. Their use is explained below . Default settings The default positions of the jumpers are shown below . Jumper functions described in silkscreen on the board are shown in blue. Reset – LK1 on JP3 A momen[...]

VIPER Technical Manual Connectors, LEDs and jumpers © 2007 Eurotech Ltd Issue E 99 RS485/422 configurat ion – LK4, LK5, LK6 and LK7 on JP1 These jumpers are used to enable/disable the RS485 receive buf fer and RS485/422 line termination. See 436H COM5 – RS422/485 interface , page 437H 65 , for more details. LK4 Description (RS485 TX /RX) RS422[...]

VIPER Technical Manual Connectors, LEDs and jumpers © 2007 Eurotech Ltd Issue E 100 LCD supply voltage – LK8 on JP2 This jumper selects the supply voltage for the LCD logic supply . LK8 Description Supply LCD logic with 5V . Supply LCD logic with 3.3V . If the LCD requires a 5V supply , please refer to the LCD dat asheet to ensure that the displ[...]

VIPER Technical Manual Appendix A – Contacting Eurotech © 2007 Eurotech Ltd Issue E 101 Appendix A – Contacting Eurotech Eurotech sales Eurotech’s sales team is always available to assist you in choosing the b oard that best meets your requirement s. Eurotech Ltd 3 Clifton Court Cambridge CB1 7BN UK T el: +44 (0)1223 403410 Fax: +44 (0)1223 [...]

VIPER Technical Manual Appendix B – Specification © 2007 Eurotech Ltd Issue E 102 Appendix B – Specification Microprocessor 400MHz (VIPER) or 200MHz (VIPER-Lite) PXA255 processor . Memory 16MB, 64MB 3.3V un-buffered SDRAM. 16MB, 32MB Intel S trataFLASH. 1MB Bootloader ROM. 256k SRAM (battery backed). Graphics controller PXA255 Flat panel contr[...]

VIPER Technical Manual Appendix C – Mechanical diagram © 2007 Eurotech Ltd Issue E 103 Appendix C – Mechanical diagram NOTES 1) ALL CONNECT OR DIMENSIONS ARE T AKEN FROM PIN 1 PL1 PL2 PL3 PL4 PL6 PL7 PL8 PL9 PL10 PL1 1 PL12 PL5 PL16 JP1 JP3 JP2 A A A A PL17 0.00 5.08 6.35 8.26 10.51 14.73 29.21 38.16 44.41 58.17 72.53 77.83 85.09 90.17 87.06 8[...]

VIPER Technical Manual Appendix D – Reference information © 2007 Eurotech Ltd Issue E 104 Appendix D – Reference information Product information Product notices, updated drivers, support material, 24hr-online ordering: www.eurotech-ltd.co.uk PC/104 Consortium PC/104 specifications, vendor inform ation and available add on product s: www.PC/104[...]

VIPER Technical Manual Appendix D – Reference information © 2007 Eurotech Ltd Issue E 105 National Semiconductor Corporation National Semiconductor LM4549 AC’97 Codec document ation: 112H www.national.com Koninklijke Philips Electronics N.V. Philips ISP1 160 USB host controller document ation: 113H www.philips.com Maxim Integrated Products Inc[...]

VIPER Technical Manual Appendix E – Acrony ms and abbreviations © 2007 Eurotech Ltd Issue E 106 Appendix E – Acronyms and abbreviations Amp Amplifier A T A Advanced T echnology Attachment BTUART Bluetooth Universal Asynchronous Receiver / T ransmitter CAN Control Area Network CCCR Core Clock Configuration Register CF Compact Flash CFI Common F[...]

VIPER Technical Manual Appendix E – Acrony ms and abbreviations © 2007 Eurotech Ltd Issue E 107 RAM Random Access Memory Reg Regulator RSA public key cryptosystem invent ed by Rivest, Shamir and Adleman RTC Real T ime Clock RX Receive SBC Single Board Computer SDRAM Synchronous Dynamic Random Access Memory SRAM S tatic Random Access Memory STN S[...]

VIPER Technical Manual Appendix F – RoHS-6 Compliance - M aterials Declaration Form © 2007 Eurotech Ltd Issue E 108 Appendix F – RoHS-6 Compliance - Materials Declaration Form Confirmation of Environmental Compatibility for Supplied Products Substance Maximum concentration Lead 0.1% by weight in homogeneous materi als Mercury 0.1% by weight in[...]

VIPER Technical Manual Index © 2007 Eurotech Ltd Issue E 109 Index A active display signal · 36 address map · 19 amplifier · 5, 7, 16, 56 anti-static · 12 assignments, GPIO pins · 22 audio · 5, 7, 16, 56 connecto r · 91 power management · 84 B backlight · 7 brightness · 37 enable · 37 inverter connector · 42 base TX ethernet · 62 batt[...]

VIPER Technical Manual Index © 2007 Eurotech Ltd Issue E 110 I I/O · 5, 6 Intel PXA255 · 4 interface, USB · 60 internal interrupt · 30 interrupt · 30 external · 30 internal · 30 J JTAG · 5, 6, 8 connecto r · 93 jumper · 5, 6, 8, 13, 85, 98 header · 96 L LAN · 16 LCD · 34, 38, 48, 53 backlight brightness · 37 backlight enable · 37 co[...]

VIPER Technical Manual Index © 2007 Eurotech Ltd Issue E 111 RS232 · 7, 15, 64, 65 RS422 · 7, 15, 65, 99, 100 RS485 · 7, 15, 65, 99, 100 RTC · 8, 26 S SDRAM · 27 serial port · 5, 6, 7, 15, 64 silicon disk · 7, 27 software · 102 source code · 101 specification · 102 SRAM · 7 static · 12 static RAM · 28 status LED · 97 STN · 5, 6, 36,[...]