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x68000:installing_scsi2sd_on_x68000_externally [2018/01/11 04:48] (current)
leonk created
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 +The following information is up to date as of December 2017.  ​
 +
 +The goal here is to have a working external SCSI solution for the X68000. ​ This is especially handy for individuals that have multiple X68K (easier to move the device between them) or update the flash drive often. ​ Some X68000 systems don't even support internal hard drives without a lot of hacking (Compact, Red Zone, etc.)
 +
 +The instructions below cover both newer SCSI based X68000 machines as well as older SASI based machines. You need to know if you have a SASI or SCSI machine; you should not attempt the SASI instructions on a SCSI machine. ​ The SCSI instructions will not work on a SASI machines either.
 +
 +  * SASI only steps will be highlighted as such: <color #​ed1c24>​**[SASI]**</​color>​
 +  * SCSI only steps will be highlighted as such: <color #​00a2e8>​**[SCSI]**</​color>​
 +  * Steps that will be common to both will not be highlighted
 +
 +
 +__**PreReq:​**__
 +
 +  * SCSI2SD V5.0b (http://​www.codesrc.com/​mediawiki/​index.php?​title=SCSI2SD)
 +  * 50 pin to 25 pin SCSI adapter for the SCSI2SD (purchase at same time as SCSI2SD)
 +  * (optional) 3D printed case for the unit
 +  * any microUSB 5V cellphone charger to power the SCSI2SD PCB
 +  * 1GB or bigger MicroSD card
 +  * SCSI external cable to connect between your X68000 and 25 pin
 +
 +The cable is the most difficult part.  Some X68000 machines have the original SCSI-1 CN-50 connector. Others use the SCSI-2 external Centronics (MC-50) connector. ​ You will require a cable that converts from your X68000 external SCSI port to the 25 pin SCSI-1 port on the SCSI2SD.
 +
 +Some things to keep in mind:
 +
 +  * The X68000 external SCSI connector follows standard SCSI pinout (even on SASI machines)
 +  * You might have to use multiple adapters (e.g. MC-50 to CN-50 adapter, and then CN-50 to 25 pin SCSI cable)
 +  * The 25 pin end needs to be male. This was commonly used on Apple computer peripherals of that era 
 +
 +__**Software setup:**__
 +
 +1) <color #​ed1c24>​**[SASI]**</​color>​ Create system boot disk that will install SASI boot loader into SRAM:
 +
 +  * Download the SASI boot disk [[https://​gamesx.com/​wiki/​doku.php?​id=x68000:​hard_drive_on_sasi_machine|SxSI V5 with DMA patch Translated by Eidis]] ​
 +  * write it to 5.25 1.2MB floppy using XFloppy 1.1 in Windows 98 (or find a friend that can create this boot floppy for you)
 +
 +2) <color #​ed1c24>​**[SASI]**</​color>​ Install SASI boot loader
 +  * boot the floppy
 +  * At the A prompt type:
 +
 +<​file>​
 +     cd sxsi
 +     ​bootset.x
 +     ​Enter:​ ED0100 ​   (this is the memory address in SRAM for the boot loader)
 +     ​Enter:​ 5         (wait 5 seconds before searching for SCSI boot devices)
 +</​file>​
 +
 +  * Next, we change the "​BIOS"​ settings. ​ There is no BIOS on X68K, but there is a utility to update boot settings called SWITCH.X. ​ The comprehensive manual can be found here: https://​gamesx.com/​wiki/​doku.php?​id=human68k_manual:​system:​switch
 +  * At the A prompt type:
 +
 +<​file>​
 +     ​switch.x
 +     with arrow keys, scroll down to BOOT and press ENTER
 +     Use spacebar to set it to: ROM $ED0100
 +        - You are telling it to start the SASI boot loader!
 +     Press Enter, and scroll all the way to the bottom
 +     Press Y to save settings
 +</​file>​
 +
 +3) Create Hard Drive image on micro SD card:
 +  * Download WinImage and install
 +  * Download latest x68000 hard drive image from the x68000 FTP site (search for x68000v4.zip)
 +  * unzip drive image and launch WinImage
 +  * Make sure microSD card is now plugged into your computer (e.g. SD external card reader)
 +  * from the "​Disk"​ menu select "​Restore Virtual Hard Drive image on Physical drive..."​
 +  * select the card reader
 +  * make sure you're able to list all files
 +  * navigate to where you opened x68000v4.zip and select X68000_V4.HDS
 +  * It will take a few minutes to write the image to the micro SD card
 +
 +__**Hardware setup:**__
 +
 +1) Update and configure the SCSI2SD device
 +
 +  * download the following files from the SCSI2SD web site (http://​www.codesrc.com/​mediawiki/​index.php?​title=SCSI2SD)
 +   
 +<​file>​
 +     ​firmware_bundle-v4.7.01.scsi2sd
 +     ​scsi2sd-util.exe ​
 +</​file> ​  
 +
 +  * scsi2sd-util.exe is a Windows application. If you are on a Mac, download the Mac config utility instead
 +  * connect the SCSI2SD device via a microUSB cable to your computer and launch scsi2sd-util.exe
 +  * from the File menu select "​Upgrade Firmware..."​
 +  * select the above firmware file and let it update
 +  * click on "Load from device"​ button
 +  * On "​General settings"​ tab:
 +
 +<​file>​
 +     ​Startup delay = 0
 +     SCSI selection Delay = 255
 +     all options should be disabled
 +</​file>​
 +
 +  * <color #​00a2e8>​**[SCSI]**</​color>​ On "​General settings"​ tab you may also select this (optional):
 +
 +<​file>​
 +     ​enable SCSI-2 support
 +</​file>​
 +
 +  * <color #​ed1c24>​**[SASI]**</​color>​ On Device 1 tab:
 +
 +<​file>​
 +     ​Device is enabled
 +     SCSI ID = 3
 +     ​Device Type = Hard Drive
 +     SD card start sector = 0
 +     ​sector size = 512
 +     ​sector count = 2048000
 +</​file>​
 +
 +  * <color #​00a2e8>​**[SCSI]**</​color>​ On Device 1 tab:
 +
 +<​file>​
 +     ​Device is enabled
 +     SCSI ID = 0
 +     ​Device Type = Hard Drive
 +     SD card start sector = 0
 +     ​sector size = 512
 +     ​sector count = 2048000
 +</​file>​
 +
 +  * click "Save to device"​ button
 +  * click "Load from device"​ button to verify the settings have been stored
 +
 +2) Put it all together
 +  * 50 pin to 25 pin converter plugs into SCSI2SD
 +  * MicroSD card plugs into SCSI2SD
 +  * SCSI cable connects between X68K external hard drive port and SCSI2SD
 +  * <color #​ed1c24>​**[SASI]**</​color>​ Power is connected to SCSI2SD from outlet via microUSB port
 +  * <color #​00a2e8>​**[SCSI]**</​color>​ SCSI2SD gets power from the system via SCSI connector
 +  * make sure there is no floppy in X68K and power on the system
 +
 +Enjoy!
  
 
 x68000/installing_scsi2sd_on_x68000_externally.txt ยท Last modified: 2018/01/11 04:48 by leonk
 
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