File:  [NetBSD Developer Wiki] / wikisrc / ports / next68kfaq.mdwn
Revision 1.4: download - view: text, annotated - select for diffs
Fri May 22 03:45:33 2015 UTC (5 years, 1 month ago) by snj
Branches: MAIN
CVS tags: HEAD
fix an error made in the conversion to wikisrc: provide an anchor so that
the link (on this very same page) to the section still works.

    1: [[!meta title="NetBSD/next68k: Frequently Asked Questions"]]
    2: 
    3: [[!toc startlevel=1 levels=2]]
    4: 
    5: # Booting
    6: 
    7: ## How do I get to the ROM Monitor or the debugger?<a name="rom-monitor">
    8: 
    9: You can get to the ROM monitor or break into the debugger (once the
   10: NetBSD kernel is running) at any time by hitting both **COMMAND** and
   11: the backquote (`` ` ``) key above the `7` on the numeric
   12: keypad.
   13: 
   14: ## How do I reset the system without pulling the plug?
   15: 
   16: This is a hard reset -- it does not sync the filesystems first. Press
   17: the *left* **COMMAND**-**ALTERNATE**-**`*`** keys (where the
   18: `*` key is to the right of the `/` on the numeric keypad).
   19: 
   20: ## How do I netboot?
   21: 
   22: This is now covered in the INSTALL notes. There is also a section of the
   23: [Diskless NetBSD HOW-TO](http://www.NetBSD.org/docs/network/netboot/) devoted to
   24: [netbooting
   25: NetBSD/next68k](http://www.NetBSD.org/docs/network/netboot/intro.next68k.html).
   26: 
   27: ## How do I boot from a second hard drive or CD-ROM?
   28: 
   29: The ROM Monitor `bsd()` command defaults to booting from the
   30: lowest SCSI ID drive which is usually the internal hard drive at ID 0.
   31: To boot from the next SCSI hard drive, you would use `bsd(1,0,0)`
   32: which will boot from the next highest SCSI ID drive -- *not necessarily
   33: SCSI ID 1*.
   34: 
   35: [[!table data="""
   36: SCSI ID		|boot command
   37: 0		|`bsd()`
   38: 2		|`bsd(1,0,0)`
   39: 6		|`bsd(2,0,0)`
   40: """]]
   41: 
   42: Only turbo NeXT systems can boot directly from a CD-ROM. Non-turbo
   43: models need to load the bootloader from a floppy, SCSI hard drive, or
   44: over the network.
   45: 
   46: ## What can I do in the ROM Monitor?
   47: 
   48: From the ROM Monitor prompt, type `?` to get a listing of the
   49: possible commands and `p` to configure the system. Additionally,
   50: pressing the `Power` key will let you power down the system.
   51: 
   52: To boot from a SCSI disk, type `bsd()`. To boot from the
   53: ethernet, type `ben()netbsd`.
   54: 
   55: [[!template id=programlisting text="""
   56:                             NeXT ROM Monitor 2.5 (v66)
   57: 
   58:     CPU MC68040 25 MHz, memory 100 nS
   59:     Backplane slot #0
   60:     Ethernet address:  0:0:f:0:fb:90
   61:     Memory size 40 MB
   62:     NeXT>
   63:     NeXT ROM monitor commands:
   64:             p  inspect/modify configuration parameters
   65:             a [n]  open address register
   66:             m  print memory configuration
   67:             d [n]  open data register
   68:             r [regname]  open processor register
   69:             s [systemreg]  open system register
   70:             e [lwb] [alist] [format]  examine memory location addr
   71:             ec  print recorded system error codes
   72:             ej [drive #]  eject optical disk (default = 0)
   73:             eo  (same as above)
   74:             ef [drive #]  eject floppy disk (default = 0)
   75:             c  continue execution at last pc location
   76:             b [device[(ctrl,unit,part)] [filename] [flags]]  boot from device
   77:             S [fcode] open function code (address space)
   78:             R [radix]  set input radix
   79:     Notes:
   80:             [lwb] select long/word/byte length (default = long).
   81:             [alist] is starting address or list of addresses to cyclically examine
   82:             Examine command, eith no arguments, uses last [alist]
   83:     Copyright (c) 1988-1990 NeXT Inc
   84: 
   85:     NeXT>
   86:     boot command: sd()? 
   87:     DRAM tests:  yes? 
   88:     perform power-on system test:  yes? 
   89:             sound out tests:  yes? 
   90:             SCSI tests:  yes? 
   91:             loop until keypress:  no?  
   92:             verbose test mode:  no?  
   93:     boot extended diagnostics:  no?  
   94:     serial port A is alternate console:  no?  
   95:     allow any ROM command even if password protected:  no?  
   96:     allow boot from any device even if password protected:  no?  
   97:     allow optical drive #0 eject even if password protected:  yes?  
   98:     enable parity checking if parity memory is present:  no?  
   99: """]]
  100: 
  101: 
  102: * * * * *
  103: 
  104: # Hardware
  105: 
  106: ## How do the keyboard, mouse, and monitor connect to the NeXT hardware?
  107: 
  108: For monochrome systems (NeXT Computer, NeXTcube, NeXTstation, NeXTcube
  109: Turbo, and NeXTstation Turbo) without a NeXTdimension board, a 19 pin
  110: cable connects the system to the mono MegaPixel Display. The cable
  111: carries power for the monitor, video for the monitor, sound in and out,
  112: and the keyboard/mouse connector. The keyboard plugs into the monitor,
  113: and the mouse plugs into the keyboard.
  114: 
  115: For color systems (NeXTstation Color and NeXTstation Color Turbo) a
  116: funky "Y-Cable" connects the system to a soundbox and to a monitor. The
  117: monitor end of the cable is a 13W3 connector. You can use any multisync
  118: monitor (with the appropriate adapter) or a fixed frequency monitor
  119: supporting the appropriate refresh rate. NeXTstation Color supports 68
  120: Hz refresh at 1280x1024. NeXTstation Color Turbo supports 72 Hz refresh.
  121: The soundbox provides the additional functionality of the mono MegaPixel
  122: Display (sound in and out and keyboard/mouse connector). The keyboard
  123: plugs into the soundbox, and the mouse plugs into the keyboard.
  124: 
  125: For cube systems with a NeXTdimension board, the refresh rate is 68 Hz.
  126: If the cube is using a mono MegaPixel Display in addition to the
  127: NeXTdimension driven display, a simple 13W3 cable is used to connect the
  128: monitor to the NeXTdimension. If the cube is not using a mono MegaPixel
  129: Display, you must use a "Y-cable" and a soundbox connected to the
  130: NeXTdimension board.
  131: 
  132: ## Differentiating ADB and non-ADB keyboards and mice
  133: 
  134: Currently, only non-ADB keyboards and mice are supported.
  135: 
  136: Non-ADB keyboards use a mini-DIN connector with 5 pins. Non-ADB
  137: keyboards have a black power key between the brightness and volume keys.
  138: Non-ADB mice use a mini-DIN 8 connector. Non-ADB mice are rectangular.
  139: All NeXT hardware supports these peripherals with the original mono
  140: MegaPixel Display (N4000 or N4000A) or a non-ADB soundbox (serial number
  141: prefix ABN). The ADB monitor and soundbox cables will work with non-ADB
  142: monitors and soundboxes. Non-ADB monitor cables (part numbers 150 or
  143: 1532) and soundbox cables (part number 2286) only work with non-ADB
  144: monitors and soundboxes.
  145: 
  146: ADB cables have mini-DIN 4 connectors. ADB NeXT keyboards have a flat
  147: green power button. ADB NeXT mice are rounded. Apple Macintosh ADB
  148: keyboards and mice should also work. ADB peripherals are only supported
  149: on NeXT hardware with ROM version v.74 (most turbo systems and some
  150: later non-turbo systems). You also need a newer mono MegaPixel Display
  151: (N4000B) or ADB soundbox (serial number prefix ADD). Additionally, you
  152: need an ADB monitor cable (part numbers 4534 or 4535) or an ADB soundbox
  153: cable (part number 4536).
  154: 
  155: Black Hole, Inc. has a
  156: [graphic](http://blackholeinc.com/images/set1/nextadbnonadb.gif)
  157: depicting the differences. ChannelU also has a
  158: [webpage](http://www.channelu.com/Turbo/NeXT/mousekeysound.html) with
  159: pictures of these devices.
  160: 
  161: ## How do I run my NeXT headless?
  162: 
  163: From [The Peanut's Archive
  164: FAQ](http://www.peanuts.org/faq-serve/cache/189.html). Also, see this
  165: [post](http://mail-index.NetBSD.org/port-next68k/1998/06/30/0000.html)
  166: describing how to build a better switch.
  167: 
  168: The procedure is to just touch pins 6 and GND on the DB-19 NeXT monitor
  169: out with a 470 Ohm resistor (450 is the actual resistance, but 470 ohms
  170: is more commonly found in resistors). The touching with the resistor
  171: will be momentary, you shouldn't try to set up a resistor so that it's
  172: always touching.
  173: 
  174: Pin 6 is the power sense, and pins 13-19 (and the DB shell) are the GND.
  175: Just say "pin 19", it may be easier. There's a pinout diagram of the
  176: DB-19 in the NeXT Users Reference Manual, as well as
  177: [below](#monitor-pinout).
  178: 
  179: If you have an old Cube (serial number below AAK0016370), the power
  180: supply needs to have more power drawn from it than an 030 (and 040?)
  181: board uses to stay on. So: On the DB-19, attach a Power Resistor (20
  182: Ohm, at least 20 Watt) between pins 12 and GND. (Pin 12 is -12V, pin 13
  183: works well for GND). Then just "momentarily touch" the 470 ohm resistor
  184: as described above, and you're set. The 20 Ohm resistor draws enough to
  185: keep the power supply happy - just don't touch it (\*HOT!\* ;-)
  186: 
  187: To power off, type "halt -p" as root on the machine (either through a
  188: terminal connected to port A, or over the ethernet connection).
  189: 
  190: Also, you need to use the NeXT keyboard to set up the [ROM
  191: Monitor](#rom-monitor). The important ones are:
  192: 
  193: -   Wait until keypress? N
  194: -   Sound out tests? N
  195: -   Port A as alternate Console? Y (if you have one, it's nice)
  196: -   Verbose mode? N (this may need to be N to work)
  197: 
  198: ## How do I build a serial console cable?
  199: 
  200: See the [NetBSD Serial Port
  201: Primer](http://www.NetBSD.org/docs/Hardware/Misc/serial.html) for more information.
  202: 
  203: ## What is the pinout of the monitor cable?<a name="monitor-pinout"></a>
  204: 
  205: The NeXT monitor cable is a very strange DB19 connector. You won't find
  206: any of these outside for special order shops. The cable, as seen from
  207: the back of the machine:
  208: 
  209: [[!template id=programlisting text="""
  210:         10                  1
  211:       _________________________
  212:       \  o o o o o o o o o o  /
  213:        \  o o o o o o o o o  /
  214:         ---------------------
  215:         19                11 
  216: """]]
  217: 
  218: 1.  +12V
  219: 2.  -12V
  220: 3.  MON CLK
  221: 4.  MON DATA OUT
  222: 5.  MON DATA IN
  223: 6.  MON PWR SWITCH
  224: 7.  NC
  225: 8.  VSYNC
  226: 9.  HSYNC
  227: 10. VIDEO
  228: 11. +12V
  229: 12. -12V
  230: 13. GND
  231: 14. GND
  232: 15. GND
  233: 16. GND
  234: 17. GND
  235: 18. GND
  236: 19. GND
  237: 
  238: * * * * *
  239: 
  240: # Other sources of information
  241: 
  242: * [The peanuts.org NEXTSTEP/OpenStep FAQ](http://www.peanuts.org/peanuts/GeneralData/Documents/faq/NeXTFAQ-html/NeXTFAQ.txt) - 
  243: (see section 5 on black hardware)
  244: 
  245: * [NeXT Hardware FAQs](http://www.lrz-muenchen.de/~heller/NeXT/NeXT.html)
  246: 
  247: * [The wscons documentation](http://www.NetBSD.org/docs/guide/en/chap-cons.html#chap-cons-wscons) -
  248: About NetBSD's platform-independent workstation console driver.
  249: 
  250: * [Diskless NetBSD HOW-TO](http://www.NetBSD.org/docs/network/netboot/)
  251: 
  252: * [NetBSD Serial Port Primer](http://www.NetBSD.org/docs/Hardware/Misc/serial.html)

CVSweb for NetBSD wikisrc <wikimaster@NetBSD.org> software: FreeBSD-CVSweb