He's a nice bloke - and that reminds me to check what I need for the IDE boards as well...
TerribleFire's H4 Build
Re: TerribleFire's H4 Build
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Re: TerribleFire's H4 Build
My H4 floppy just stopped working. I may have either knocked something or possibly powered up briefly with the TF536 and 68000 in the machine.
I'm trying to boot / use the Frontier floppy image..
https://www.frontierastro.co.uk/Files/files.html
It doesnt show the notice you usually get and goes straight to the desktop. If i click the program in auto i get Error #35.
Symptoms are that the drive clicks up to sector 170.. then 233 then the flashfloppy firmware decideds whatever has been asked for is BS and gives me a d-A on the display.
Any suggestions where to look. Could i have killed the WD1772?
(all this happens with plain 68000)
I'm trying to boot / use the Frontier floppy image..
https://www.frontierastro.co.uk/Files/files.html
It doesnt show the notice you usually get and goes straight to the desktop. If i click the program in auto i get Error #35.
Symptoms are that the drive clicks up to sector 170.. then 233 then the flashfloppy firmware decideds whatever has been asked for is BS and gives me a d-A on the display.
Any suggestions where to look. Could i have killed the WD1772?
(all this happens with plain 68000)
———
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
Re: TerribleFire's H4 Build
Sounds like a bad address, so bad bus between DMA <> 1772 ?
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viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
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Re: TerribleFire's H4 Build
I found 2 pins unsoldered on the WD1772 and
HDRQ (pin 23 on the DMA)
and RESET (!) on the WD1772.
I fixed this and the behaviour is changed. Now frontier just 4 bombs and the drive head behaviour looks consistent.
EDIT: I can format a disk and I can save a newdesk.ini file on there which gets loaded. Also the AUTOBOOT.HFE loads fine. Just frontier suddenly being sulky.
HDRQ (pin 23 on the DMA)
and RESET (!) on the WD1772.
I fixed this and the behaviour is changed. Now frontier just 4 bombs and the drive head behaviour looks consistent.
EDIT: I can format a disk and I can save a newdesk.ini file on there which gets loaded. Also the AUTOBOOT.HFE loads fine. Just frontier suddenly being sulky.
———
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
Re: TerribleFire's H4 Build
@terriblefire thats the same behaviour I get when trying Frontier with TF536.
Not sure if its related but a lot of the benchmarks on Gembench run really slowly with the 536 but don't on Agrandlunds 535 firmware
Not sure if its related but a lot of the benchmarks on Gembench run really slowly with the 536 but don't on Agrandlunds 535 firmware
If it ain't broke, test it to Destruction.
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Re: TerribleFire's H4 Build
Found the issue. A flick of solder was bridging pins on the MMU. Looks like it came from the desoder pump when i was replacing the keyswitches on the amiga 1000.
There was a few other badly solder pins i have touched up. Fixed now.
EDIT: Also replaced the alt key and clip for it.. but managed to drop/lose one of the keycap domes... Honestly think it evapourated. Doesnt matter i guess.
———
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
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- Moderator Team
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Re: TerribleFire's H4 Build
Got the ROM decoder from Exxos today. Installed it worked first time.
———
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
- rubber_jonnie
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Re: TerribleFire's H4 Build
You may not have lost a dome, there is usually one short, have a look here: https://www.exxosforum.co.uk/forum/viewt ... t=keyboardterriblefire wrote: ↑Sat May 30, 2020 4:13 pm
EDIT: Also replaced the alt key and clip for it.. but managed to drop/lose one of the keycap domes... Honestly think it evapourated. Doesnt matter i guess.
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...