Finally back in Alaska for the summer and dragged the AM1200 out again. As Murphy would have it it's not as good as it was last fall! Now the self test says
Controller # 1 - Controller Self-test passed
Controller # 1 - Drive One:
Find diagnostic cylinder failed*
?Disk error: AA 70 00 02 00
I used a zuluscsi rp2040 to backup that drive last year, so thought to just remove the old hd & hookup the zuluscsi as drive zero. No Go. Here's the zulscsi log attempting normal (not self test) boot
[10ms] Platform: ZuluSCSI RP2040
[10ms] FW Version: 23.05.04-release May 4 2023 16:37:33
[11ms] DIP switch settings: debug log 0, termination 1
[11ms] SCSI termination is enabled
[12ms] Flash chip size: 4096 kB
[14ms] SCSI target/disk mode selected by DIP switch, acting as a SCSI disk
[22ms] SD card detected, FAT32 volume size: 29496 MB
[22ms] SD MID: 0x27, OID: 0x50 0x48
[23ms] SD Name: SD32G
[23ms] SD Date: 3/2022
[23ms] SD Serial: 0x21022071
[24ms] Reading configuration from zuluscsi.ini
[25ms] Active configuration:
[26ms] -- SelectionDelay = 255
[26ms] -- EnableUnitAttention = No
[26ms] -- EnableSCSI2 = No
[27ms] -- EnableSelLatch = No
[27ms] -- MapLunsToIDs = No
[28ms] -- EnableParity = Yes
[75ms] Finding HDD images in directory SamplerZone:
[76ms] -- Opening SamplerZone/HD00_moded.hda for id:0 lun:0
[95ms] DBG ---- Image file is contiguous, SD card sectors 4218944 to 4503983
[96ms] ---- Read prefetch enabled: 8192 bytes
[99ms] -- Platform supports ROM drive up to 3740 kB
[100ms] ---- ROM drive image not detected
[100ms] SCSI ID:0 BlockSize:512 Type:0 Quirks:0 ImageSize:142520kB
[201ms] Initialization complete!
[23950ms] DBG ---- SELECTION: 0
[23952ms] DBG scsi_accel_rp2040_finishRead(0x00 0x00 0x00 0x00 0x00 0x00 ) detected parity error
[23953ms] DBG ---- COMMAND: TestUnitReady
[23953ms] DBG ------ OUT: 0x00 0x00 0x00 0x00 0x00 0x00
[23954ms] DBG ---- STATUS: 2 CHECK_CONDITION, sense 0x00004700
[23959ms] DBG ---- MESSAGE_IN
[23959ms] DBG ------ IN: 0x00
[23960ms] DBG -- BUS_FREE
[23960ms] DBG ---- SELECTION: 0
[23961ms] DBG scsi_accel_rp2040_finishRead(0x00 0x00 0x00 0x00 0x00 0x00 ) detected parity error
[23962ms] DBG ---- COMMAND: TestUnitReady
[23963ms] DBG ------ OUT: 0x00 0x00 0x00 0x00 0x00 0x00
[23963ms] DBG ---- STATUS: 2 CHECK_CONDITION, sense 0x00004700
[23969ms] DBG ---- MESSAGE_IN
[23970ms] DBG ------ IN: 0x00
[23970ms] DBG -- BUS_FREE
[23970ms] DBG ---- SELECTION: 0
[23972ms] DBG scsi_accel_rp2040_finishRead(0x00 0x00 0x00 0x00 0x00 0x00 ) detected parity error
[23973ms] DBG ---- COMMAND: TestUnitReady
[23973ms] DBG ------ OUT: 0x00 0x00 0x00 0x00 0x00 0x00
[23974ms] DBG ---- STATUS: 2 CHECK_CONDITION, sense 0x00004700
[23983ms] DBG ---- MESSAGE_IN
[23983ms] DBG ------ IN: 0x00
[23983ms] DBG -- BUS_FREE
"SELECTION: 0" thru "BUS_FREE" repeats endlessly...
Suspecting either bad zuluscsi config or incompatible boot roms. Here's the zuluscsi.ini
[SCSI]
# Settings that apply to all devices
Debug = 1 # Same effect as DIPSW2, enables verbose log messages
SelectionDelay = 255 # Millisecond delay after selection, 255 = automatic, 0 = no delay
# Settings that can be needed for compatibility with some hosts
Quirks = 0 # 0: Standard, 1: Apple, 2: OMTI, 4: Xebec, 8: VMS
EnableUnitAttention = 0 # Post UNIT_ATTENTION status on power-on or SD card hotplug
EnableSCSI2 = 0 # Enable faster speeds of SCSI2
EnableSelLatch = 0 # For Philips P2000C and other devices that release SEL signal before BSY
MapLunsToIDs = 0 # For Philips P2000C simulate multiple LUNs
# Settings that can be specified either per-device or for all devices.
Vendor = "rhcomp" # 8 char max string
Product = "SCSI2SD" # 16 char max string
Version = "5.2" # 4 char max string
Serial = "1234567812345678" # 16 char string
Type = 0 # 0: Fixed, 1: Removable, 2: Optical, 3: Floppy, 4: Mag-optical, 5: Tape
TypeModifier = 0 # Affects only INQUIRY response
SectorsPerTrack = 18 # For floppies
HeadsPerCylinder = 255 # Drive geometry
# Where the images are
Dir = "SamplerZone"
Not totally sure which big IC's are the boot proms, but the two 2764's near U75 have alphamicro copyright notices on them and are labeled 178-00 B05 and 178-01 B05.
Wondering if anyone has traveled this way before...