DFB1 Support thread

[markus0321]

Is that NetUSBee operational? Maybe grab UIP Tool?

Nope. It's not working. I got PARCPUSB but I still needed a program on the Falcon to get that going. But got it working with a Gotek.

I did a few tests with 50MHz. I also noticed that I'm running with an older jedec programmed on mine. So I have to reflash my Xilinx later on with 220507 and do tests again. The screen goes black when I activate flashROM so something wrong there. Does that depends on the older jedec/bad solder/flashROM chip broken? Since I have no FPU installed I get lower score in FrontBench I suppose? I haven't done a stresstest or run YARTT yet. But otherwise the rest seems as it should.

How did you manage to detect Alt-RAM in EMUTOS? I tried the latest EmuTOS nightly and it does not detect Alt-RAM? :-(

[Badwolf]

@DoG Sorry, I didn't see these posts first time around.

The screen goes black when I activate flashROM so something wrong there. Does that depends on the older jedec/bad solder/flashROM chip broken?

Flash wasn't tested in the release version and I'm pretty sure wasn't working. It's actually something I'm still working on -- there seems to be an issue with EmuTOS detecting the TT-RAM. The latest 'not-release' version in the repository should have flash hard-wired to only use the bottom 512k (in case of a 1M chip being fitted) and I think has all the logic in place, but, like I say, I've been having problems with it and EmuTOS.

I think the flash is fine, but the RAM detection is hanging. If you flash TOS404 onto it, you should get ROM speeds over 200% in Gembench.

Since I have no FPU installed I get lower score in FrontBench I suppose?

No, FPU doesn't affect FrontBench, but running in VGA mode will (60Hz v 50Hz -- the intro sequence is shorter: 5/6ths the length!)

BW

[Badwolf]

How did you manage to detect Alt-RAM in EMUTOS? I tried the latest EmuTOS nightly and it does not detect Alt-RAM? :-(

Are you seeing a problem with EmuTOS in Flash or EmuTOS.PRG?

I'm still trying to identify a problem with EmuTOS in Flash not being able to probe for TT-RAM properly resulting in a black (or white depending on VGA or RGB) screen on a cold boot.

Is that what you're seeing?

BW

[markus0321]

How did you manage to detect Alt-RAM in EMUTOS? I tried the latest EmuTOS nightly and it does not detect Alt-RAM? :-(

Are you seeing a problem with EmuTOS in Flash or EmuTOS.PRG?

I'm still trying to identify a problem with EmuTOS in Flash not being able to probe for TT-RAM properly resulting in a black (or white depending on VGA or RGB) screen on a cold boot.

Is that what you're seeing?

BW

No, that's not how I programmed EmuTOS and replaced the original eprom from TOS4.04 with EmuTOS.
It starts mormally only does not detect Alt-RAM and here I saw that it is detected and I did not guess that it can be loaded from emutos.prg

I have another bigger problem after activating Alt-RAM with maprom, icons on the desktop window disappear or get damaged.

[Badwolf]

No, that's not how I programmed EmuTOS and replaced the original eprom from TOS4.04 with EmuTOS.
It starts mormally only does not detect Alt-RAM and here I saw that it is detected and I did not guess that it can be loaded from emutos.prg

Hmm, that's meant to work.

Can you try booting normally (assuming no TT-RAM detected), run YAARTTT, choose 'M' from the choice of 'S' or 'T' (I know) and put in a start address of 0x1000000 and and end address of 0x5000000 (for 64MB SDRAM) or 0x9000000 (for 128) does that run successfully?

(@mods: happy to take this to a different thread)

BW

[markus0321]

No, that's not how I programmed EmuTOS and replaced the original eprom from TOS4.04 with EmuTOS.
It starts mormally only does not detect Alt-RAM and here I saw that it is detected and I did not guess that it can be loaded from emutos.prg

Hmm, that's meant to work.

Can you try booting normally (assuming no TT-RAM detected), run YAARTTT, choose 'M' from the choice of 'S' or 'T' (I know) and put in a start address of 0x1000000 and and end address of 0x5000000 (for 64MB SDRAM) or 0x9000000 (for 128) does that run successfully?

(@mods: happy to take this to a different thread)

BW

I'm not at home now. But when I come back, I will check it, although it seems to me that I was running YAART and it showed no errors. I also changed the memory layouts several times for other ones, but it did not make any changes.

I have another bigger problem after activating Alt-RAM with maprom, icons on the desktop window disappear or get damaged.

[Badwolf]

I have another bigger problem after activating Alt-RAM with maprom, icons on the desktop window disappear or get damaged.

Sounds like you have the blitter enabled -- the Blitter can't talk to TT-RAM. This would normally be disabled by EmuTOS when it detects TT-RAM, but... see problem 1 ;-)

BW

[markus0321]

I have another bigger problem after activating Alt-RAM with maprom, icons on the desktop window disappear or get damaged.

Sounds like you have the blitter enabled -- the Blitter can't talk to TT-RAM. This would normally be disabled by EmuTOS when it detects TT-RAM, but... see problem 1 ;-)

BW

Can you somehow disable the blitter in TOS 4.04?

I tried
https://github.com/agranlund/tftools/bl ... litfix.prg
but it doesn't work for me :-(

[Badwolf]

Sounds like you have the blitter enabled -- the Blitter can't talk to TT-RAM. This would normally be disabled by EmuTOS when it detects TT-RAM, but... see problem 1 ;-)

Can you somehow disable the blitter in TOS 4.04?

Ah, I thought you were using EmuTOS.

EmuTOS: it's a checkbox in the menus -- make sure you save your desktop aftewards.

TOS4: softblitting is not available, you have to use a replacment VDI. NVDI and fVDI are options [1].

BW

[1] https://github.com/dh219/DFB/blob/main/DFB1/README.md

[markus0321]

Can you somehow disable the blitter in TOS 4.04?

Ah, I thought you were using EmuTOS.

EmuTOS: it's a checkbox in the menus -- make sure you save your desktop aftewards.

TOS4: softblitting is not available, you have to use a replacment VDI. NVDI and fVDI are options [1].

BW

[1] https://github.com/dh219/DFB/blob/main/DFB1/README.md

Well, sorry but I have not read this before ... :-(
Ok, probably the easiest way is to upload EmuTos. :-)
I have one more question, can I temporarily use 29F400 instead of 29F800? EMU TOS should fit in it, probably?