exxos wrote: ↑Sun Jun 21, 2020 12:20 pm

Glorfindeal wrote: ↑Sun Jun 21, 2020 12:16 pm I used 50ns roms.

What ROMs are they ? I never seen faster than 55ns PLCC.

Sorry, meant 55ns. These are the roms I bought: https://www.mouser.com/ProductDetail/Mi ... VHHA%3D%3D

Ken

exxos wrote: ↑Sun Jun 21, 2020 12:14 am Well I can't say how these odd TOS versions will work. I think someone else a few weeks ago mentioned similar problems. I only use TOS206 for my testing. But also you need 55ns ROM or faster in the dualtos board else you will also have problems.

I used 50ns roms.

Ken

Well, I’ve been doing some testing and it looks like my issue isn’t the accelerator. I was running under Peter’s TOS 2.16 and that seems to be the problem. Swapping to 1.62 and I have no problems. I’ll have to keep running under 2.16 and see if I have problems running other programs. If I do I’ll ha...

exxos wrote: ↑Fri Jun 19, 2020 10:41 pm Have a look at this thread.. https://www.exxosforum.co.uk/forum/viewt ... =20#p41199

Here is a picture:

Have a look at this thread.. https://www.exxosforum.co.uk/forum/viewtopic.php?f=24&t=20#p41199 I took the computer apart so I could see the accelerator board. It is external blitter. I checked the resistor that is soldered in R1. It is already 470R. The capacitor shows 50 on it so I assume it i...

What is the difference between an external and internal blitter?

I have the v1.0 booster installed in my STe. When I run a memory check using the diagnostic cartridge, I get memory failure when running 32Mhz. This happens with both the 4 MB modules I got from from Exxos and the 4MB modules I already owned. Both pass at 8 MHz. When I run the latest version of Gemb...

can anyone tell me the part number for the 8 bit roms (2 rom set). The 32 pin version.

Thanks,

Ken

While I haven’t tried to burn anything yet, I did set up the usb driver and software in Parallels Desktop. I connected the GQ-4x4 and the software wouldn’t detect the programmer. I had to do a detect hardware and restart the VM. After that I’ve had no problems with the software detecting the program...

I’ll have to wait until I get the erasable EPROMs in before I’ll know. I decided I didn’t want to test on OTW EPROMs. 6 of them cost me $42. I don’t need anymore coasters