DFBX1 Issues

[exxos]

I'm pleased to let you know that this firmware resolves the issue for me! I didn't observe any more freezes during boot with Flash/50 MHz CPU/NetUSBee connected to ROM-Port. I've tried like 10 times or so.

Great stuff :thumbup:

I don't have any bus pull-ups at hand, so I can't test this at the moment.

No rush anyway.

Another issue is that the XBOOT graphics are corrupted with the patched TOS version in the Flash (to detect TT-RAM). It seems that XBOOT is using the VDI functions of TOS for that, making use of the Blitter. Thus I can't have a faster HDDriver (running from TT-RAM) and error-free XBOOT at the same time. Same issue existed for SuperVidel (as I found in some other thread on Atari-Forum I think). But a solution could be to launch NVDI even before XBOOT.

@Badwolf did the patched TOS. I'd assume it's behavior wouldn't change much over original 404.

[Badwolf]

Another issue is that the XBOOT graphics are corrupted with the patched TOS version in the Flash (to detect TT-RAM). It seems that XBOOT is using the VDI functions of TOS for that, making use of the Blitter. Thus I can't have a faster HDDriver (running from TT-RAM) and error-free XBOOT at the same time. Same issue existed for SuperVidel (as I found in some other thread on Atari-Forum I think). But a solution could be to launch NVDI even before XBOOT.

@Badwolf did the patched TOS. I'd assume it's behavior wouldn't change much over original 404.

I've not tried patched TOS and XBOOT but I suspect you're right. VDI calls from TT-RAM would cause problems.

How about setting your PRGFLAGS on XBOOT to ST-RAM only?

The blitter isn't a problem per se, it's just that the VDI a) doesn't know not to try to use it when working with TT-RAM and b) doesn't have an alternative anyway. After all, the Initial Atari logo is hardware blitted to the screen but it comes from ROM and goes into ST-RAM. No harm no foul.

BW

[charon030]

How about setting your PRGFLAGS on XBOOT to ST-RAM only?

Actually, that worked! I first tried to move NVDI before XBOOT in the Auto folder, but that didn't help. So I assume that usage of the blitter is part of the XBOOT code. But running XBOOT from ST-RAM does the trick, having the icons stored in ST-RAM where the blitter can find them.

Cheers!