home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: comp.sys.m68k
- Path: sparky!uunet!charon.amdahl.com!pacbell.com!ames!saimiri.primate.wisc.edu!zaphod.mps.ohio-state.edu!pacific.mps.ohio-state.edu!linac!att!mcdchg!laidbak!manoj
- From: manoj@i88.isc.com (Manoj Dalmia (STG))
- Subject: need help with MVME167 SCSI sw pkg
- Message-ID: <1993Jan26.171614.25586@i88.isc.com>
- Sender: usenet@i88.isc.com (Usenet News)
- Nntp-Posting-Host: ra.i88.isc.com
- Organization: INTERACTIVE Systems Corporation, Naperville, IL
- Date: Tue, 26 Jan 1993 17:16:14 GMT
- Lines: 42
-
-
-
- I'm trying to use, without much success, the SCSI software package
- on a MVME167. I would appreciate any pointers to get it to work
- from people who have been successful with it, or are familiar with
- this pkg.
-
- Basically, this pkg serves as a layer of code above the NCR SCSI
- SCRIPTS processor on the board. According to the documentation,
- it is possible to send out SCSI CDBs to the SCRIPTS processor via
- this layer of code.
-
- I am making a trap #15 call to the .SIOPEPS function in M167Bug
- to retrieve the SCSI pointers from M167Bug.
- Then I initialize the above-mentioned layer of code via a call
- to one of these ptrs.
-
- When I try to send out a SCSI Inquiry cmd, the SCSI sw pkg comes back
- with an error from the SIOP saying that "a bus error occurs when
- the SIOP is attempting to access the local bus while it is physically
- threaded to a SCSI device in any phase other than a SCSI bus
- DATA PHASE (i.e, BERR while sending a CDB out to target). ...
- The err_addr field of the siop_struc points to the fault address."
-
- The fault address I get in the err_addr field of the siop_struc
- is 0xBA7A200C. I get this fault address consistently.
- The address has nothing to do with reality, it seems.
- My program is operating out of SRAM on the board,
- between 0xffe10000 and 0xffe20000.
- There is only 32 Mb of RAM on the board (0x2000000).
-
- I seem to get this error no matter what I try.
-
- I would appreciate any pointers from you if you've been successuful
- with this package, or are familiar with it.
-
-
- Regards,
-
- Manoj
-
-
-