Re: Phil C's Raven build
Posted: 10 Oct 2025 15:42
Well, that's just plain annoying, it crashes with all versions of the firmware I have, as does my original Diamond card, yet the GD5429 runs great in my Raven all day long.
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Do the cards work OK in a PC with DOS? Are you sure it's the Raven's fault, and not the Pine either PCB or bios, or dac?PhilC wrote: 10 Oct 2025 15:09 So I've built another of the Pine VGA boards and this one does boot to TOS on the Raven but also locks up. I do tend to get different results with different bios versions, so just trying a few of those now to see if it fixes things.
I'll double check what versions of ATF1508AS + ATF22V10's I'm using when I get home this evening.PhilC wrote: 10 Oct 2025 16:14 So I am wondering, since @agranlund has the same Diamond GD5434 card as I do and it works on his system, what the differences are for my config and his.
All I can think of is that I am using a ATF1508AS-10 instead of an ATF1508-7 and am using the previous version of the firmware as the latest wouldn't work for me. So I have ordered a couple of them directly from from Microchip as that seems to be the only place that has them now. Other than that, it's likely software config causing the issue.
Code: Select all
Nessi: ATF1508AS-7JX84
Narnia: ATF22LV10C-10PU
Iksi: ATF22LV10C-10PU
I'm using Lattice 22V10-7 Gals but have been from the offset without issue. the ATF1508AS is the 10ns part, so i've ordered a couple of 7ns parts from Microchip direct.agranlund wrote: 13 Oct 2025 20:41 @PhilC, these are the ATF chips in my computer:
There are no deliberate reasons for why I have 22LV10's, I didn't even know until I checked just now :)Code: Select all
Nessi: ATF1508AS-7JX84 Narnia: ATF22LV10C-10PU Iksi: ATF22LV10C-10PU
Possibly a "wrong" order, or maybe I had those at hand in my stash of stuff at the time.
What sort of price? The ones I have, are 10ns too. I'm *really* interested to see if they make a difference.PhilC wrote: 13 Oct 2025 20:49 I'm using Lattice 22V10-7 Gals but have been from the offset without issue. the ATF1508AS is the 10ns part, so i've ordered a couple of 7ns parts from Microchip direct.
I got mine directly from Microchip too. Bought a few since the PLCC versions are now end-of-life.Mikerochip wrote: 17 Oct 2025 13:05What sort of price? The ones I have, are 10ns too. I'm *really* interested to see if they make a difference.PhilC wrote: 13 Oct 2025 20:49 I'm using Lattice 22V10-7 Gals but have been from the offset without issue. the ATF1508AS is the 10ns part, so i've ordered a couple of 7ns parts from Microchip direct.