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by exxos
Sun May 19, 2024 10:03 pm
Forum: DSTB1 & DFB1 booster by BadWolf
Topic: exxos's DFB1 trials
Replies: 630
Views: 34806

Re: exxos's DFB1 trials

Yeah....I'm working on my H5 phoenix board assembly and testing video next! Got a bunch of video already shot and am waiting on the MFP chip I just ordered. ah nice didn't know that channel was yours :) For some reason (because I don't read thoroughly) I thought I could salvage one off my donor. Yo...
by exxos
Sun May 19, 2024 9:51 pm
Forum: HARDWARE DISCUSSIONS
Topic: Suska board
Replies: 66
Views: 35284

Re: Suska board

There is 'Maddalt' function: https://freemint.github.io/tos.hyp/en/gemdos_memory.html#Maddalt " »Inform GEMDOS of alternative memory« - Register 'Alternative' RAM with GEMDOS. " It is used to add more than 4 RAM to the TOS memory pool and it was implemented in GEMDOS 0.19 (TOS 2.x) Yes in...
by exxos
Sun May 19, 2024 9:03 pm
Forum: DSTB1 & DFB1 booster by BadWolf
Topic: exxos's DFB1 trials
Replies: 630
Views: 34806

Re: exxos's DFB1 trials

coonsgm wrote: Fri May 17, 2024 6:24 pm Glad you enjoyed the video (and the DFB1). Just to be 100% transparent the DFB1 I used was a hobbyist built one. From what I've read about the Exxos built ones is that they are more refined and stable. I highly recommend it!
Hold up, was that your video then ?
by exxos
Sun May 19, 2024 9:01 pm
Forum: HARDWARE DISCUSSIONS
Topic: Suska board
Replies: 66
Views: 35284

Re: Suska board

Cyprian wrote: Sun May 19, 2024 8:17 pm I know that Atari TT can have e.g. 10MB ST-RAM

ST/STE SHIFTER/MMU are limited to 4MB
Yeah they limited by hardware. Though I was more thinking what TOS version had more than 4MB. Not sure what OS the TT has , assume 306 ?
by exxos
Sun May 19, 2024 4:35 pm
Forum: HARDWARE DISCUSSIONS
Topic: Suska board
Replies: 66
Views: 35284

Re: Suska board

Or does anyone know if any machines, other than the falcon, supported more than 4mb ST RAM ?
by exxos
Sun May 19, 2024 2:10 pm
Forum: RAM UPGRADES
Topic: STFM 4MB RAM EXPANSION SUCCESS
Replies: 16
Views: 479

Re: STFM 4MB RAM EXPANSION SUCCESS

:bravo:
by exxos
Sun May 19, 2024 12:00 pm
Forum: H5 C1 USER BUILDS
Topic: JezC - the second (and laST) H5C1 build
Replies: 53
Views: 30745

Re: JezC - the second (and laST) H5C1 build

Ages ago I started this project https://www.exxosforum.co.uk/forum/viewtopic.php?f=18&t=1789&p=79088&hilit=led#p79088 but lack of time as normal... But maybe I could do a simple version. Just hardwired the bus and has LEDs to output the databus in a small 68k footprint. It would help peo...
by exxos
Sun May 19, 2024 11:44 am
Forum: H5 C1 USER BUILDS
Topic: JezC - the second (and laST) H5C1 build
Replies: 53
Views: 30745

Re: JezC - the second (and laST) H5C1 build

If I remember rightly one of the first instructions run in TOS is a reset. I asked about that before. So the double rest is normal. As your not getting the double reset, your not running ROM. Trying to run TOS206 would probably cause the same symptoms. Again you need to remove the CPU and hardwire t...
by exxos
Sun May 19, 2024 10:54 am
Forum: HARDWARE DISCUSSIONS
Topic: Suska board
Replies: 66
Views: 35284

Re: Suska board

Does someone know if suska had 14mb ST ram ? I seem to recall it did . But I can't remember or remember what TOS version it has.
by exxos
Sun May 19, 2024 2:40 am
Forum: DSTB1 & DFB1 booster by BadWolf
Topic: exxos's DFB1 trials
Replies: 630
Views: 34806

Re: exxos's DFB1 trials

Black square ? :lol: :shrug:

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