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I don't have many Classic analog boards. But need some scrap analog boards for reverse engineering😉

Hi, It was developed for SMC ROM SIMM. I think Bolle makes stuff for his SE/30 recreation, but this Crucible App has nothing to do with his product. But thank you for having interest!

Use male and female pin headers. Bridge at 1Kohms. I think it goes down to below 15MHz.

Bridge 1K OHMS instead of SL jumpers. It is possible to set below 15MHZ, so I think you can drop it to 12MHz. GOOD LUCK!!!

All I can say is that both Turbo040 and Carrera040 are compatible with ROM-inatorII. I think Steve Chamberlin expressed it that way because he couldn't test enough at that time. SMC ROM SIMM is also compatible with Turbo040 and Carrera040. It would be nice if someone did a long test. maybe you😁...

Thanks for interesting our SMC ROM SIMM, If you don't mind, please tell me who said ROM-inatorII doesn't work with Carrera040. or link (?) I didn't check it for a long time, but I tried booting, testing with System7.1, 7.5, and booting the ROM disk with their combination, but there was no...

@JDW @OneGeekArmy @retr01 Thanks for all the opinions! As you may know, my store sales ROM-inator Resurrections, manufactured under license from Steve Chamberlin. Some profits are returned to BMOW. I'm not dissatisfied with ROM-inatorII, and I still have a lot of respect for it. I think...

Right, I'm sure you understood 100% now! Crucible creates 4 files U1,U2,U3,U4 which are actually flashed into the EEPROM SST39SF040, which should be the same EEPROM that is actually placed on the PCB of the ROM SIMM. I mean, it's written on the PCB card silkscreen, so you know what it means.

1, The Downloads folder is the "Downloads" folder already in your Mac's user directory. You can't do that, Crucible creates a total 2MB ROM image, but the first 512KB contains IIsi's Modified ROM, and the latter 1.5MB contains the ROM Boot Disk, but it is always a single boot image disk...

Mar 26, 2023 The new Crucible V1.1 is ready! Download here!!! New instructional video and information in this post＃25 The SMC ROM SIMM is a new ROM SIMM that was released the other day and has already been posted here. There are several steps to creating a ROM, and to shortcut this, we...

Another great YouTube video, Thank you @JDW

The second part of this post describes how to flash the ROM, but plz read that first. 512 KB of IIsi ROM is stored at the beginning of the 2MB. After that comes the concatenated BootDisk area. *This disk image is exactly 15.72MB. The sum of these two is 2MB, so not all 2MB can be used as a boot...

Calculate them as follows: 39SF010 x4 = 512KB 39SF020 x4 = 1MB 39SF040 x4 = 2MB There is no benefit to choosing 1MB, In the case of 512KB, it will be the genuine ROM capacity, so I think it's good if you don't need a boot disk or use ROM edited for 68040.

I don't think so. Again, the majority of these hardware cut Macs and Linux down, but it makes sense if these manufacture wants to build something cheap. Developing software for minorities is a gap-filling task... Since the T48 newly supports EPROM 27c160 (it works with many vintage computers)...

Actually, I bought a kit for the TL866II+, but it comes with many necessary adapters, but I rarely use them. So I do not recommend them. By the way, if you buy only the adapter you use separately, it will be considerably cheaper. Unfortunately there is no Mac application that can control the...

Unfortunately there is no corresponding EEPROM, so it is limited to 512KB or 2MB. However, 2MB is enough unless there is something special. I'll give you a link of T48, you can find it in AliExpress: T48 Programmer...

Sorry for the delay, congratulations everyone!

@Branchus made a great Youtube video. Watching his technique is very educational for VintageMac enthusiasts, and since he's been soldering SOJ's repeatedly, it's easy to see how it works! Thank you @Branchus

@JDW In the case of T48, more chips are supported, so it can be used widely. Vintage Macs rarely use the 27C160 EPROM, but the TL866II+ does not support it, but the T48 does. No matter where you buy it, it's made in China, so I think the cheaper one is better, but since many adapters are not...

We prepared 3 colors. LED color is all Blue. *It leaks from the case and looks faintly blue