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RIGHT. FROM THE START

Roadrunner 030 & 040

AM-1000/AM-1200 Upgrade

Installation Instructions

PDI-00172-10, Rev. A03

Summary of content (66 pages)

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RIGHT. FROM THE START RIGHT. FROM THE START RIGHT. FROM THE START RIGHT. FROM THE START RIGHT. FROM THE START Roadrunner 030 & 040 RIGHT. FROM THE START AM-1000/AM-1200 Upgrade Installation Instructions RIGHT. FROM THE START RIGHT. FROM THE START RIGHT. FROM THE START RIGHT. FROM THE START RIGHT. FROM THE START RIGHT. FROM THE START RIGHT. FROM THE START RIGHT. FROM THE START PDI-00172-10, Rev.
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 1995 Alpha Microsystems REVISIONS INCORPORATED REVISION A00 A01 A02 A03 DATE Dec. Feb. Dec. Mar. 1993 1994 1994 1995 Roadrunner 030 and 040 AM-1000/1200 Upgrade Installation Instructions To re-order this document, request part number PDI-00172-50. The information contained in this manual is believed to be accurate and reliable. However, no responsibility for the accuracy, completeness or use of this information is assumed by Alpha Microsystems.
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Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade Page i TABLE OF CONTENTS 1.0 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 GENERAL PRODUCT DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.2 Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.
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Page ii Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade 12.0 34-Pin X-Bus Cabling Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.1 AM-172 to AM-985 X-bus Cabling Instructions . . . . . . . . . . . . . . . . . 12.2 AM-174 to AM-985 X-bus Cabling Instructions . . . . . . . . . . . . . . . . . 12.3 Connecting the 50-Pin SCSI Interface Cable . . . . . . . . . . . . . . . . . . 12.4 Connect DC Power Cable to Roadrunner Board . . . . . . . . . . . . . .
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Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade Page iii APPENDIX E - FCC CLASS A EMISSION CONTROL REQUIREMENTS E.1 FERRITE CLAMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-1 E.2 SIGNAL AND CHASSIS GROUND . . . . . . . . . . . . . . . . . . . . . . . . . . E-2 PDI-00172-10, Rev.
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Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade Page 1 1.0INTRODUCTION The Roadrunner product kit described in this document is designed for upgrading Alpha Micro’s AM-1000 and AM-1200 computers. The product kit consists of two printed circuit boards (AM-172 or AM-174 and AM-985), two 34-pin cables, and all necessary mounting hardware. The Roadrunner hardware package is engineered to fit completely inside the AM-1000/1200 chassis.
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Page 2 Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade The performance achieved by a Roadrunner upgrade depends largely on the type of hard disk drive you are using. With the Roadrunner hardware installed, an AM-1000 or AM-1200 computer booting from a SCSI-1 hard disk drive connected to the Roadrunner SCSI port will see a significant improvement in overall system performance.
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Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade Page 3 2.AM-174 66MHz Specific features: a.MC68040 CPU. b.33MHz bus clock rate. c.66MHz CPU clock rate. d.4KB internal instruction cache e.32KB external cache. f.One on-board (SIMM) single inline memory module expansion slot, which supports 4, 8, 16, and 32 megabyte 70ns DRAMs. 3.AM-174 80MHz Specific features: a.MC68040 CPU. b.40MHz bus clock rate. c.80MHz CPU clock rate. d.4KB internal instruction cache e.32KB external cache. f.
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Page 4 Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade 2.2Environmental Specifications Computer operating temperature external 60 to 80 degrees F (16 to 27 degrees C) Humidity 10% to 90% (non-condensing) 2.3Power Specifications DC power requirements (maximum): Board Current Draw AM-172 AM-174 AM-985 1.6 A 2.9 A 200 ma 3.
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Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade Page 5 The power supply in AM-1000 and AM-1200 computers will support one hard disk drive and one diskette drive or one streaming tape drive; there is not sufficient power to support more than two internally mounted peripherals. For the Roadrunner hardware to function properly in your computer, your power supplies +5v DC voltage output must be a minimum of 4.90 volts.
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Page 6 Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade 4.0COMPATIBILITY The next two sections on Roadrunner hardware and software compatibility are important and should be carefully read before proceeding with your installation. 4.1Software Compatibility In order to be Roadrunner 030 compatible, your AMOS operating system can be no earlier than AMOS PR5/94 1.4C or AMOS PR5/94 2.2C.
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Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade Page 7 4.3Unsupported Hardware The following products are not supported for use with Alpha Micro’s Roadrunner hardware: 1.ST-506 drives and Xebec controllers are not supported as a boot devices. 2.AM-706 memory expansion boards. 3.AM-708 memory expansion boards. 4.All third party memory expansion boards designed to plug onto AM-177 or AM-167 boards. 5.Other types of third party boards (i.e.
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Page 8 Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade revision -04:08 or later. You can use the SCSI.LIT program (included in AMOS 2.2C and 1.4C operating system releases) to determine the firmware revision of your tape drive. Simply type in the command SCSI at the AMOS prompt and the program will display a string of numbers which includes the firmware revision.
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Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade Page 9 Once the computer has completed booting, enter the following commands to update the tape drive firmware for SCSI-2 operation: LOG OPR: RETURN FWUPD DVR:TSCZ2 RETURN The program will prompt you for the name of the device, enter: STR0: RETURN The firmware on the tape drive will automatically be updated for SCSI-2 operation; it takes about one minute and the AMOS prompt will re-appear.
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Page 10 Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade 5.4SCSI Hard Disk Drives Depending on your order, your new SCSI drive may already be loaded with a Roadrunner compatible AMOS operating system. If this is the case, the drive will be clearly labeled indicating how it was configured. In most cases, you will be attaching your SCSI disk drive to the high performance port on the Roadrunner board.
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Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade Page 11 The boot PROMS on the Roadrunner board are programmed to look first at the SASI port on the AM-167 or AM-177 board. If a SCSI drive addressed as #0 is detected on the SASI port, it will be selected as the boot device. If no device is detected on the SASI port, the boot PROMS will then check the Roadrunner board’s SCSI port for a device.
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Page 12 Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade AM-1200 BOOT SWITCH CONFIGURATION SWITCH 1 2 3 DIAGRAM 4 (AS VIEWED FROM REAR PANEL) BOOT SELECTION SCHEME ON OFF OFF ON VCR/HARD DISK ON ON OFF ON OFF FLOPPY ONLY ON OFF ON OFF ON HARD DISK ONLY ON ON ON OFF ON SCSI STREAMER/HARD DISK ON AM-1000 BOOT CONFIGURATION JUMPERS U100 U101 W14 W8 W15 W9 W14 W8 W15 W9 W14 W8 W15 W9 W14 W8 W15 W9 = VCR/HARD DISK = FLOPPY ONLY = HARD DISK ONLY = SCSI
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Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade Page 13 7.0SCSI DISPATCHER In order to use the Roadrunner’s on-board high performance SCSI controller, you must define the "SCSI Dispatcher" in your system initialization command file. AMOS uses the dispatcher to communicate with the SCSI controller chip. All communications with the SCSI controller chip are handled by the dispatcher. There are two versions of the SCSI dispatcher. SCZRR.
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Page 14 Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade Very little force is required to install a SIMM module. If you’re having problems getting the SIMM module installed in the connector, stop and take a moment to examine both the SIMM module and the connector. Make sure you are installing the SIMM as shown in the illustration. Once the memory is installed, you must set the memory configuration jumpers based on the capacity of the SIMM module.
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Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade Page 15 9.0CONFIGURING ROADRUNNER AND AM-985 BOARDS The next four sections supply jumper configuration information for the Roadrunner AM-172 and AM-174 boards, as well as the AM-985 board. The illustrations show the configuration jumpers for each printed circuit board set in their factory default positions. 9.1Roadrunner AM-172 Board Configuration The illustration below shows the AM-172 board configured as shipped by Alpha Micro.
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Page 16 Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade 9.2Roadrunner AM-174 Board Configuration The illustration below shows the AM-174 board configured as shipped by Alpha Micro. The only user configurable jumpers on this board are the JP11, JP12, and JP13 memory configuration jumpers. These jumpers only need to be reconfigured if you change the amount of memory installed in your computer. All other jumpers on the board should be left in their factory configured positions.
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Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade Page 17 9.3Boot PROM Removal and Installation The type of socket used for the boot PROM on your Roadrunner board requires a special IC removal tool. See the illustration below for more information: WARNING! The boot PROM IC used on Roadrunner boards requires a specialized tool for its removal. If you attempt to remove the boot PROM using a screwdriver or pocketknife, you could easily damage both the chip and the socket.
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Page 18 Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade 9.4AM-985 Configuration The AM-985 board, which attaches to either an AM-167 or AM-177 CPU board, only has one jumper. The jumper is factory installed at location JP1 and should not be removed. DWB-00985-00 ALPHA MICROSYSTEMS AM-985 MADE IN USA This rubber button protects the AM-985 board, preventing it from coming into contact with the metal frame on the AM-177 board.
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Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade Page 19 The illustrations on the following pages use the AM-177 CPU board as an example of how to install the AM-985 board. The procedure used for the AM-167 board is exactly the same; the only difference is that none of the screws holding the metal frame around the AM-167 board need to be removed to install the AM-985 board. 2.
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Page 20 Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade Carefully pry the CPU chip from its socket. BATTERY MC68000 LOW BYTE HIGH BYTE MAC926 AM-177 Board and Mounting Frame PDI-00172-10, Rev.
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Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade Make sure the rubber button that isolates the AM-985 board from the metal frame is in place. Install the AM-985 board exactly as shown. Note how the AM-985's two 34-pin connectors are oriented in relation to the AM-177 board. BATTERY P2 P1 JP1 AM-985 BOARD AM-985 Board Installation PDI-00172-10, Rev.
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Page 22 Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade 11.0INSTALLING THE ROADRUNNER BOARD There are several different methods of installing the Roadrunner board. In a typical installation that includes a new SCSI drive, the Roadrunner board will be mounted above the SCSI disk drive using the PDB-00172-10 mounting kit. If you choose to use your existing disk drive, the Roadrunner can be mounted in the center position between the power supply and the hard disk drive.
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Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade DISK DRIVE/AM-17X MOUNTING BRACKET DWF-20741-00 AM-17X MOUNTING HOLES 3-1/2" DRIVE MOUNTING HOLES AM-17X MOUNTING HOLES The drive's 50-pin SCSI connector must be positioned at this end of the bracket. 3-1/2" SCSI DISK DRIVE MAC931 DWF-20741-00 MOUNTING BRACKET 3-1/2" SCSI Drive and Roadrunner Mounting Bracket PDI-00172-10, Rev.
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Page 24 Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade 5.The previous figure shows the new mounting bracket (DWF-20741-00). Install your new drive on the bracket as shown in the illustration. Make sure the 50-pin connector on the drive is oriented as shown. 6.To install the Roadrunner board, attach one 2" long standoff to the mounting holes located at each corner of the Roadrunner board.
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Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade Page 25 8.Once the bracket is aligned with the nylon standoffs on the bottom of the chassis, install the phillips-head screws that hold the assembly in place. 11.2Roadrunner Center Position Mount (No Peripheral) To install the Roadrunner board between the power supply and the hard disk drive in a configuration where no tape or diskette drive is being used, the Roadrunner board mounts on four two inch long standoffs.
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Page 26 Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade Once the standoffs are attached to the Roadrunner board, the assembly can be placed inside the chassis between the power supply and the hard disk drive. Make sure the Roadrunner board is oriented as shown in the prior figure; the SIMM connector on the Roadrunner board needs to be closest to the computer’s rear panel.
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Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade Page 27 To install the new panel, the AM-1000/1200 front bezel must be removed: 1.The bezel is held in place with seven phillips-head screws. Four of the screws are inside the chassis (these are the screws that secure the bezel to the doublers on each side of the chassis). The other three screws holding the bezel in place are located on the bottom of the chassis. 2.
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Page 28 Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade By installing shorter standoffs on the rear of the tape or diskette drive, it will lower the AM-17X board, allowing the SIMM memory card to clear the bottom of the AM-177 or AM-167 board.
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Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade Page 29 12.034-PIN X-BUS CABLING PRECAUTIONS Up to this point, the installation instructions for AM-172 and AM-174 Roadrunner boards have been exactly the same. However, the installation of the 34-pin X-bus cables is not the same. This difference becomes important in configurations where an AM-172 (030 based) Roadrunner board is being replaced with an AM-174 (040 based) board.
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Page 30 Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade If the AM-17X board is mounted above the disk drive, both 34-pin cables route across the end of the board. If the AM-17X board is mounted in the center position, both 34-pin cables are routed across the middle of the board.
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Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade Page 31 12.2AM-174 to AM-985 X-bus Cabling Instructions The AM-985 and AM-174 boards are linked together with two 34-pin cables, which you were instructed to connect to the AM-985 board previously. One of the cables connects the P2 connector on the AM-985 board to the J3 connector on the AM-174 board; the other cable connects the P1 connector on the AM-985 board to the J2 connector on the AM-174 board.
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Page 32 Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade TANDBERG SCSI 1/4" TAPE DRIVE DWB-10201-00 50-PIN SCSI INTERFACE CABLE RED STRIPE AM-17X BOARD PIN-1 RED STRIPE 3-1/2" SCSI DISK DRIVE REAR PANEL EXTERNAL SCSI CONNECTOR MAC942 RED STRIPE SCSI Interface Cable Routing If you have your Roadrunner board mounted in the center position between the power supply and the hard disk drive, the 50-pin connector at the far end of the cable still connects to the Roadrunner board.
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Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade Page 33 AM-17X BOARD PIN-1 DWB-10201-00 SCSI INTERFACE CABLE RED STRIPE REAR PANEL EXTERNAL SCSI CONNECTOR SCSI HARD DISK DRIVE MAC943 RED STRIPE Center Position Cable Routing In some cases, the Roadrunner board may be mounted in the center position above a streaming tape drive. In this configuration, route the cable straight over the top of the disk drive, and then over to the Roadrunner board.
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Page 34 Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade 12.4Connect DC Power Cable to Roadrunner Board The Roadrunner installation kit includes a special DC power harness that has three DC power connectors. One of the connectors plugs into the Roadrunner board; one connector plugs into the SCSI disk drive; and the third connector plugs into the DC power cable previously connected to the disk drive in your non-Roadrunner configuration.
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Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade Page 35 Once you have completed self test, press the reset button and wait for the computer to boot. At the AMOS prompt, type: SYSTAT RETURN Check the system status information displayed by the SYSTAT program and insure all jobs applicable to your computer are up and running—e.g., terminal, printer, task manager, etc. 15.
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Page 36 Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade Table 1. Front Panel Status Codes Generated by the Monitor CODE MEANING 4 System is out of QUEUE blocks. 8 A/C power dropped below an acceptable level. 9 Memory parity error. 10 An interface driver (.IDV) defined in a TRMDEF statement in the system initialization command file was not found in account [1,6] on the boot device. 11 A terminal driver (.
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Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade Page 37 Table 2 (Continued) CODE MEANING x3 The system is initializing the boot device. If the boot stops at this point, it may indicate a hardware problem with the boot device. For disk devices, when turning power on, this code might remain on the display for a short time while the disk drive spins up to operating speed. x4 The system is reading the Master File Directory (MFD) from disk.
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Page 38 Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade Table 2 (continued) CODE MEANING xb The system is beginning to execute the AMOS monitor program. If an error occurs at this point, try reloading the latest version of the system software. xd System bootup failed because of a time-out error. This code may indicate faulty memory or an addressing problem. 2E System bootup failed because of a bootstrap loader program checksum error.
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Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade Page 39 17.0ADDITIONAL DOCUMENTATION For additional HARDWARE information, refer to the following: 1. AM-1000 (or AM-1200) Owner’s Manual 2.Alpha Micro Self Test User’s Guide 3.Alpha Micro Installation and Planning Guide For additional SOFTWARE information, refer to the following: 1. AMOS System Operator’s Guide 2.AMOS System Commands Reference Manual 3.
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APPENDIX A SCSI TERMINATION A.1SCSI TERMINATION USING EXTERNAL TERMINATOR OPTION The preferred method of terminating the SCSI bus in an AMOS based computer is the installation of an external terminator. In Early April of 1993, the external SCSI bus terminator became standard on all AMOS based computer configurations.
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Page A-2 Appendix A BAIL LOCKS CONFIGURATION A SI SC (PRA-00222-00) EXTERNAL SCSI BUS TERMINATOR CONFIGURATION B SI SC MAC821 #4 SCREW AND WASHER Figure A-1. External Terminator Installation Figure A-1 shows two different types of external SCSI connectors. 1.Configuration"A" shows an extended external SCSI connector and bail locks for holding the terminator in place. This configuration is used on almost all of Alpha Micro’s currently available product.
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SCSI Termination Page A-3 2.For AM-1001 subsystem installations, the last SCSI device attached to the connector farthest down the cable away from the host computer must have its terminators installed. All SCSI devices inside the host computer must have their terminators removed.
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Page A-4 Appendix A Each SCSI disk drive shipped by Alpha Micro has a one page notice with jumper configuration information, including instructions on how to configure termination power. AM-62X SCSI 1/4" Streaming Tape Drive Installation Instructions, PDI-00625-00, revision A07 or later. AM-647 DAT Tape Drive Installation Instructions, PDI-00647-00, revision A05 or later. PDI-00172-10, Rev.
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APPENDIX B READ-AHEAD AND WRITE BUFFERING B.1INTRODUCTION In the past, AMOS systems achieved high levels of performance by using a "Herbie" style disk controller (such as the AM-520) to offload a large portion of the overhead associated with disk access. One additional benefit of this offloading, is that extra cycles are available on the Herbie controller to perform functions such as read-ahead and write buffering.
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Page B-2 Appendix B B.2READ AHEAD The Roadrunner’s SCSI disk driver, SCZRR.DVR, is able to perform read-ahead directly into AMOS disk cache. When any program attempts to read a physical block from a disk, the SCZRR driver will also read up to an additional seven sequential blocks from the disk drive and store these read-ahead blocks in the cache. This read-ahead scheme works very well when jobs on the system are doing a large number of sequential reads.
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Read-Ahead and Write Buffering Page B-3 SAVE MAX.DVR RETURN If you wish to disable or change the number of read-ahead blocks, simply use the FIXLOG program to generate a new disk driver and if the disk driver is for the DSK: device, don’t forget to use MONGEN and embed the new driver into the system monitor. The generic driver Roadrunner SCSI disk driver (SCZRR.DVR) is setup for seven read-ahead blocks. B.
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Page B-4 Appendix B Therefore, you must weigh the potential for data loss (which is always there) versus the dramatic performance increase seen when using write buffering. If you are worried about the reliability of write buffering, it may be worth keeping in mind that the AM-520 disk controller has always used write buffering on a track-by-track basis (not quite as efficiently as the Roadrunner write buffering scheme however). The SMARTDRV program that comes with MS-DOS 5.
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Read-Ahead and Write Buffering Page B-5 This would set up 100KB of write buffering for the DSK devices and 100KB of write buffering for the SUB device. All three drives would have their write buffers flushed every minute (or sooner if the drives are not busy with read requests). B.4FINAL NOTES Both read-ahead and write buffering schemes used on the Roadrunner hardware dramatically improve system performance in our lab tests.
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APPENDIX C ROADRUNNER SOFTWARE CONFIGURATION C.
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Page C-2 Appendix C C.1.2Warm Boot Ability A warm boot tape allows you to access the computer in situations where you are not able to boot from the hard disk drive. When doing a Roadrunner upgrade, you’ll be modifying the system initialization command file and using the MONGEN program to embed a new driver in your AMOS monitor. Either of these two operations, if done incorrectly, could result in a computer that won’t boot.
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Roadrunner Software Configuration Page C-3 If your disk drive is not running an AMOS 1.4C or 2.2C (or later) software release, you will need to update your operating system. It is highly recommended that you update your operating system before you install the Roadrunner hardware. Load the Roadrunner compatible operating system and corresponding hardware support tape onto your computer’s hard disk drive, following the instructions in the AMOS release notes supplied with the software.
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Page C-4 Appendix C C.1.5Preparing the Software to Boot from the Roadrunner Hardware Before you turn off the power to your computer and install the Roadrunner hardware, you need to make a couple of adjustments for Roadrunner compatibility: Instructions outlined in this section require that you directly modify your AMOS monitor, as well as your AMOS system initialization command file.
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Roadrunner Software Configuration Page C-5 For example: :T JOBS 1 JOBALC ; TRMDEF VER SCZDSP ; DEVTBL JOB1 TERM1,AM1000=0:19200,AM62A,100,100,100,EDITOR=15 SCZRR.SYS DSK1,DSK2 Once the dispatcher has been defined in your AMOSL.INI file, you must code the SCSI dispatcher to allow it to run on your specific system. Once you enter the product installation code (PIC), the product overlay file is forever modified and will not accept a new PIC. This can be a problem if you happen to enter an incorrect PIC.
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Page C-6 Appendix C You will now be able to re-encode the dispatcher. If after once again rebooting the computer you still receive the same error, check with your dealer to make sure the correct PIC was supplied for your computer. 3.Your AM-1000 or AM-1200 computer boots from a monitor called AMOSL.MON. In order for the Roadrunner to boot, a new monitor must be created using a driver called SCZRR.DVR, which is compatible with the Roadrunner hardware.
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Roadrunner Software Configuration Page C-7 4.If you are booting from a SCSI drive, your AMOS monitor should be configured with the SCZRR.DVR file, using the MONGEN program, prior to shutting down your computer and installing the Roadrunner hardware. Once you have completed all the steps outlined in this appendix, you are ready to install the Roadrunner hardware. PDI-00172-10, Rev.
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APPENDIX D ROADRUNNER AM-174 PROGRAMMING INFORMATION D.1ROADRUNNER AM-174 PROGRAMMING INFORMATION The MC68040 processor used on the AM-174 Roadrunner board contains more internal instruction cache (4096 bytes) than earlier MC68030-based processors. Increased internal cache is one of the features which contributes to the improved performance of the Roadrunner 040 board; however, if your software does not properly manage this instruction cache, it could be adversely affected.
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Page D-2 Appendix D D.1.2What You Must Do.. The only sure way to address this issue is to flush the instruction cache after loading instructions into memory, but before executing those instructions. Because the method by which you flush the cache is different on the various 680x0 processors, you will need to add code specific to the 68040. You must be certain to handle the different processors individually. Failure to do so may result in inadvertently disabling certain processor features.
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Roadrunner AM-174 Programming Information Page D-3 In versions of M68 appearing in earlier AMOS releases, the instructions MOVECD7,CACR and CINVA were not implemented. With the release of AMOS 2.2C, which includes M682.0(181), these instructions are now supported. Examples of their use are shown above. D.1.3One More Caution The 68040 also has internal registers called Transparent Translation Registers (also present on the 68030) that you must be sure not to modify.
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Page D-4 Appendix D From the AMOS prompt, you can type: COMPAT COMPAT.DAT RETURN or you can add this same command into your system initialization command file. If you simply enter the command: COMPAT RETURN you will get a display showing the list of programs that have been selected for the special cache control.
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APPENDIX E FCC CLASS A EMISSION CONTROL REQUIREMENTS In order to insure that your Roadrunner enhanced computer complies with FCC Class A rules and regulations, it must have the following equipment, and (or) modifications. E.1FERRITE CLAMP Your product installation kit includes a special ferrite clamp (IND-00010-40) that clamps around the two 34-pin cables extending between the AM-985 board and the Roadrunner board.
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Page E-2 Appendix E E.2SIGNAL AND CHASSIS GROUND The signal ground and chassis ground in your Alpha Micro computer are normally isolated from one another and then tied together at a single point within the computer. If your computer’s signal and chassis grounds are not tied together, they should be connected at a single point within the computer chassis. The recommended method is to connect these grounds together at the power supply.