Load and run games with a simple double-click. If you have downloaded an ISO image and want to use it without burning it to a blank disc, WinCDEmu is the easiest way to do it.View the Directory of a Disk or Tape Drive. Data on the SD card is simply an image of the disk, starting with sector 0.NEW: NetBSD/300 v9.1 image - Read below for more infoWinCDEmu is an open-source CD/DVD/BD emulator - a tool that allows you to mount optical disc images by simply clicking on them in Windows Explorer. That drive is old enough so that it should be recognised by most old HP instruments. The HP 9123D is a dual microfloppy drive with 70 tracks and 16 sectors/track. Ie it looks like say a HP9122 with 4 drives, numbered 0.3 The HP 9121D drive.Special Optimisations for GEOS 2.0. Built in Monitor/Debugger for an inside view of C64 code. Copy files between disks, tapes and the Mac harddisk using Drag & Drop.
Of Premastering Software for DOS/Windows/MAC/UNIX D-RO Phillips CDD-522 Multi-Session CD-ROM Disc Writer.We now have bare boards for sale. Arraid utilizes our proprietary FPGA based technology to replace aging and refurbished drives offering reliable and programmable solid state flashdisk, solid state flashtape and solid state floppy disk drives.Complete Portable CD Drive Notebook Ready. Now if there was a way to combine that with the Apple Game server.Arraid, LLC manufactures replacement data storage solutions for computer systems by Bull, DEC, Encore, Honeywell, HP, Evans and Sutherland, Pertec, and many more. HPDisk MKII - Read below for more infoRe: Disk drive emulators Funny you mention this David, as I was updating my version of ADT yesterday and found out about this function. The protocolHas another weakness: The controller needs to have detailed knowledge of the drive, based on the "ID", ie drive geometry etc. When I say mostly is because it implements an "ID" function that is not compatible with 488. It is fairlyElegant and mostly compatible with IEEE-488. (Tested with version 2.03)Clik on the schematic for a larger PDF The Amigo protocolThe protocol used to control various types of disk drives over GPIB is sometimes called "Amigo" and sometimes "HP-300 Compatible HP-IB". ![]() Wheter that is useful for LIF disks is debatable, but could possibly be useful for HP-UX.Both SS/80 and CS/80 have "proper" manuals, but Amigo was never formally documented as far as I know. If you change the code somewhat and enable support for ExFAT inFATFs, then you could possibly have image files up to 2^48 bytes in size. The maximum vector is 6-bytes, allowing a maximum disk size of 2^48 bytes, well beyond what was available in the 80's.HP Also defined a subset of CS/80, called SS/80 to be used with low-cost drives.The current firmware uses FATFs and us limited to 4Gb so you are limited to image files of max 4Gb. To boot, the protocol used a linearAddressing, instead of cylinder/head/sector. Not only geometry, but also stuff like how much time a seek might take and so on. With CS/80, a controller needed only to issue a DESCRIBE and theDrive would return all the info the controller needed. With serial polling the controllerAddresses each instrument and asks for status. This check is called "polling" and GPIB defines two types: Serial and Parallell. The controller need to be able to fire off a request to a unit, then go its merryWay and return later and check for status. Also see the very extensive documentation at The HPDrive ProjectOne aspect that is indelibly woven into GPIB is the concept of polling. The actual address can be configured from the host, but the default is that the unit with address 0Pulls DIO8 low, address1 pulls DIO7 low, etc. The units detect this and respondBy pulling one dataline low to indicate completion. This is how a Parallell Poll takes place: The controller asserts (pulls low) ATN and EOI simultaneously. With parallell polling the controller gets the status of up to 8Units in one go. ![]() Disc Drive Emulator Full FATFs VersionIeIt looks like say a HP9122 with 4 drives, numbered 0.3The HP 9123D is a dual microfloppy drive with 70 tracks and 16 sectors/track. The current MKII FW supports up to 4 "disks" simultaneously. All theLIF files you save from your instrument are inside this image file.For the MKII version I now use the full FATFs version which means that I can have several open files. There is only one file on the SD-card and that file is an image of the LIF (HP) disk. HPI file can be used directly, but many disk images available on the internet are in other formats, say TeleDisk and needTo be converted. BIN is justArbitrary, a binary file. Ie what you would get if you copied a disk to file using dd on Linux. The protocol is SS/80.HPDisk uses a flat file representation of a disk. The protocol is SS/80.The HP 9134D is a Winchester (hard disk) with 303 tracks, 6 heads and 32 sectors/track. I have been using libdsk 1.5.12 on Windows for testing.The circuit is fairly straightforward. BIN file suitable for HPdisk, you use the command dskconv.exe" -otype raw BAS2SYS.TD0 BAS2SYS.BIN. To convert a disk image called BAS2SYS.TD0 to a. TeleDisk imagesAre usially have a. Ms visio for macTo do this in software requires a silly high CPU speed. The circuit can be equipped with either a standard SD-holder or a micro one.The circuit around U1 and Q1 might need some explanation: If we remember our Parallell Poll from above, then ideally, a device should respond within 100nsTo a parallell poll (ATN and EOI asserted). Level shiftingBetween 5V and 3.3V is done with resistive dividers (5V->3.3V) and a mosfet (3.3V->5V). Using a 3.3V PIC is not an option because of GPIB signal levels. Ie the pin is made inputTo make it high/threestate and output and driven low to simulate the original GPIB open-collector drivers.The SD-card operates at 3.3V so a separate regulator is needed for that. Since the software default of this unit is address 0, you should pull DIO8 low. If RA0 is low and both ATN and EOI happen to be low, then the output of the gate goes highQ1 turns on, pulling the selected dataline (through P8) low. The parallel poll responseIs brought out on RA0, low for asserted and high for unasserted. Use an angled GPIB connector or a straight GPIB-plug with soldered on wires. I will also replace the FET with another one with lower Vth, such as BSH 103.PCB can be equipped with either a standard SD-Card connector or a Micro SD one. A good explanation of the problems can be found here,The fix is to change R4 to 1k8. For now, place the jumper in the topmost position, marked "0" on the PCB as the default address of the FW is 0.I had some problems with the level shifter for the SD card. A female PCB connector, such as Mouser 636-112-024-213R001Goes on the component side. Pin 1 is the top left pin when seen from the component side and pin 24 is bottom right, grounded. You need to watch out for the pin orientation. Note position of pin 1 Bare Boards for saleWe now have bare boards for sale. A male PCB should be mounted on the reverse side of the board. Same for decoupling caps C7 and C8.Alternative, using a GPIB female PCB connector. ![]()
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