New User Struggling with ZuluSCSI Mini RP2040

[MageLeader]

Hey, guys. I'm trying to set up a ZuluSCSI Mini to work with my Mac Plus. I made an HDA with Disk Jockey, a 20MB drive with System 6.0.8 bootable, then made an ini file with the setting for Mac Plus. When I plugged it all in, it didn't work. I checked the log and got the following:
[8ms] Flash chip size: 16384 kB
[8ms] SCSI target/disk mode selected by DIP switch, acting as a SCSI disk
[9ms] Reclock RP2040 & Pico 1/1W based boards to standardized speed
[10ms] Reclocking with these settings are compatible with CD audio playback
[10ms] Initial Clock set to 125000000Hz
[11ms] Reclocking the MCU to 203200000Hz
[11ms] Setting the SDIO clock to 41MHz
[12ms] After reclocking, system reports clock set to 203200000Hz
[30ms] SD card communication speed: 41 MHz, 20 MB/s
[32ms] SD card detected, FAT64 volume size: 15104 MB
[32ms] SD MID: 0x03, OID: 0x53 0x44
[33ms] SD Name: SC16G
[33ms] SD Date: 10/2020
[33ms] SD Serial: 0x15A49BAD
[36ms] Reading configuration from zuluscsi.ini
[37ms] Active configuration (using system preset "MacPlus"):
[37ms] -- SelectionDelay = 0
[37ms] -- EnableUnitAttention = No
[38ms] -- EnableSCSI2 = No
[38ms] -- EnableSelLatch = Yes
[38ms] -- MapLunsToIDs = No
[39ms] -- EnableParity = Yes
[80ms] Finding images in directory /:
[82ms] -- Opening /HD6.hda for id:6 lun:0
[84ms] ---- Configuring as disk drive drive
[84ms] ---- Drive geometry from image size: SectorsPerTrack=34 HeadsPerCylinder=16 total sectors 45152 (divisible)
[86ms] ---- Read prefetch enabled: 8192 bytes
[87ms] -- Platform supports ROM drive up to 15136 kB
[87ms] ---- ROM drive image not detected
[87ms] SCSI ID: 6, BlockSize: 512, Type: 0, Quirks: 1, Size: 22576kB

I saw the "Platform supports ROM drive up to 15136 kB" and thought that my HDA file was too big, so I made another that was below that size. Got the exact same result and error message. I don't know much about these things, so I'm hoping someone can point me in the right direction. Following the guides online hasn't helped me because I only sort of know what I'm doing. Fair warning, you might have to describe things to me like I'm 5 (I was born many years after these computers went out of fashion and raised post Windows XP. I've also been a PC user my entire life, so Apple is new to me as well). Thanks in advance for your patience. I've attached the log file just in case.

 

[Realitystorm]

A Macintosh plus does not provide terminator power. Are you providing power via the USB port on the ZuluSCSI mini?

You could also try one of my image files https://www.savagetaylor.com/downloads/downloads-macintosh/

 

[robin-fo]

Can your Mac start using another drive? How did you copy the system software to the image? Is the System Folder blessed?

Platform supports ROM drive up to 15136 kB

This only applies for an image stored on the built-in flash of the ZuluSCSI

Are you providing power via the USB port on the ZuluSCSI mini?

There wouldn‘t be a zululog.txt without power

 

[Realitystorm]

There wouldn‘t be a zululog.txt without power

I assumed that was the case, but I wasn't sure if the issue with the Plus lacking terminator power was no power or not enough power, so I suggested the USB connection to be sure.

 

[MageLeader]

Can your Mac start using another drive? How did you copy the system software to the image? Is the System Folder blessed?

This only applies for an image stored on the built-in flash of the ZuluSCSI



There wouldn‘t be a zululog.txt without power

I can start the Mac using a 3.5" system disk, but it won't recognize the Zulu drive. Disk Jockey lets you add the system software to the HDA file when you generate it. I don't know what "blessed" means in this context.

 

[MageLeader]

A Macintosh plus does not provide terminator power. Are you providing power via the USB port on the ZuluSCSI mini?

You could also try one of my image files https://www.savagetaylor.com/downloads/downloads-macintosh/

I'll give those a try and report back.

EDIT: Ok, so I think I found the problem. I was misreading the log file. I plugged it in to the computer, not expecting it to work since it said "ROM drive image not detected." But it works now. Thanks.

 

[Phipli]

*Redacted*