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wietze

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Posts posted by wietze

    Hard disk adapted game compilations new policy

    in Atari ST/TT/Falcon Computers

    Posted · Edited by wietze

    1 hour ago, ParanoidLittleMan said:

    Wietze wrote: "I wonder if I should not offer my downloaded game libraries up for download myself; for free of course... "

    Sicherlich, Herr wietze - you are who should decide what and how  with other people's work, because asking little money is so selfish, dirty.

    No, asking from others to do things for free is selfish, and at the end counter productive.

     

    You should do whatever you want, Im a big proponent of people doing what they want. As such I also like to do what I want :). If you see the need to ask payment for your efforts; I could see the need to just pay for the efforts and subsequently distribute what I've puchased for free...

     

    Im also a big proponent of speaking one's mind if one wants to. And I wanted to, and thus I did. But to be concise, I never asked you to do something for free. Don't turn around the words I spoke there, thats just mean!

     

    My principle for contributing to the Atari community is because I love doing so; and it seems to be in line with a lot of other wonderful people that are involved in the scene, that contribute to the scene following this same ethos. And as such all my efforts will be from my own motivation and will never involve any charge, whatever the time spent on it .

     

    I think the main question I really have here is; do you need money; or do you want to charge for your stuff out some principle? For me this didn't really get clear.

    • Like 1

    Ti99/4a + 32kb rom + FinalGrom99 = Lot of Blue screens (hardware failure?)?

    in TI-99/4A Computers

    Posted

    17 minutes ago, arcadeshopper said:

    My money is on the retro tink is not interpreting the signals correctly

    There is a diagram in the FAQ for making a cable

    Sent from my LM-V600 using Tapatalk
     

    Good point, so to rule out the Retrotink I removed the Retrotink from the chain. And thus doing:

    - TI99/4A <> Texas Instruments TV PAL Encoder PHA 2030 <> TV Component input

     

    But this results in the same behaviour; which means the Retrotink is not the cause.

    The fact remains that the sprites of for example pacman and sabre wulf still show, but the playfield is not drawn. This is probably the same behaviour as happens with Moon Patrol.

    Considering the display of these `faulty' screens is still crystal clear, and the other working games are crystal clear as well, it seems not to be the cable or the PAL Encoder at fault. Could it be that a part of the VDP chip is broken/bugged, like Asmusr suggested?

    • Like 1

    Ti99/4a + 32kb rom + FinalGrom99 = Lot of Blue screens (hardware failure?)?

    in TI-99/4A Computers

    Posted

    41 minutes ago, arcadeshopper said:

    Could be your display not supporting the output of the system..

     

    The information that it was pal and you were using an adapter and what kind of display you have would have been nice to know up front would have made our suggestions a lot easier to make

     

    The output of the pal signal is not quite component for modern displays

     

    Ymmv

     

    Sent from my LM-V600 using Tapatalk

    Good call. Apologies for not thinking of this to provide this information. To make up for it; let me elaborate on the setup:

    - TI-99/4A with TMS9929NL chip, outputting PAL

    - Connected through the 6 pin din cable using Texas Instruments TV PAL Encoder PHA 2030, which outputs: Component and Audio leads

    - Component input is connected to the RetroTink 2X

    - Retrotink output goes into HDMI in of my TV

     

    How does the remark of Asmusr hold up, regarding different screen modes?

    Ti99/4a + 32kb rom + FinalGrom99 = Lot of Blue screens (hardware failure?)?

    in TI-99/4A Computers

    Posted · Edited by wietze

    Just opened her up, and it seems to have a TMS9929NL vdp chip.

    I currently connect the machine to the display using a `Texas Instruments TV PAL Encoder PHA 2030'. 

     

    Could the use of a PAL vdp chip cause the abovementioned graphical behaviour with some programs? 

    (Edit: some thread in this forum suggests that all cartridges encountered are PAL/NTSC compatible; so I assume answer is `no').

     

     

     

    Ti99/4a + 32kb rom + FinalGrom99 = Lot of Blue screens (hardware failure?)?

    in TI-99/4A Computers

    Posted · Edited by wietze

    I may have found some anomalies while running a ram test, but the program tells me that there are no errors found.

     

    While running ram test/checkerboard: I noticed some off pixels:

    IMG_20201206_221043487.jpg

    And while running the address input test I got some off characters on the left (and a few flicking pixels on the right part of the screen in the drawn chars).

    IMG_20201206_221119279.jpg

     

    I am not sure if this means anything, or if its all good.

     

    Testing a few games (from the downloaded url above):

    - Alpine works

    - Flappy Bird works

    - Jet Set Willy works

    - Sabre Wulf gives me a blue screen, but plays music, and mashing some buttons, starts the game and draws main character and some other sprites.

    - Jet Pac gives me the cyan background color and a hanging buzzing sound

    - Road Hunter works

    - Miner 2049er works

    - Lasso works

    - Pacman gives solid blue screen, and does nothing, similar to moon patrol, but if I then press 1, the game starts; and it draws the players

    - Ms Pacman does the same, if I mash some buttons the game starts and plays (draws player and ghosts).

     

    IMG_20201206_222842177.jpg

     

    Perhaps this helps explaining the situation? Could it be VDP related?

     

    So perhaps its just the specific games? I have no idea.

    Ti99/4a + 32kb rom + FinalGrom99 = Lot of Blue screens (hardware failure?)?

    in TI-99/4A Computers

    Posted · Edited by wietze
    Made model number explicit.

    I have opened the machine up. Im fairly sure that it is a non-qi version, thus a TI-99/4a; I have a sideport without any metal surrounding it.

    I cleaned the sideport with alcohol, and I removed the `sponge' from the cartridge port, and gave it a clean as well.

    The behaviour however remains the same.

     

    See the link for an example of `Moon Patrol' (which is downloaded from https://ftp.whtech.com/Cartridges/FinalGROM99/ ):

    http://frummel.org/~weedz/tmp/VID_20201206_212532893.mp4 (dont mind the colours, they are there, but my phone dont capture them well).

     

    Are there diagnostic tools or programs one can recommend to run?

     

    Kind regards

    Ti99/4a + 32kb rom + FinalGrom99 = Lot of Blue screens (hardware failure?)?

    in TI-99/4A Computers

    Posted · Edited by wietze

    Hi there guys,

     

    Im a new user of the TI99/4a hardware, and just this week I finally received my FinalGrom99 and 32kb memory expansion part.

    I have downloaded a few cartridges together with some homebrew games and gave them a spin.


    Unfortunately, many of my attempts of loading a game failed. More often than not, I end up having a blue screen, and sometimes some sound or music is playing.

    For example, Sabre Wulf and Ms Pacman do not run. For example Moon Patrol only loads some of the graphics (like the top part of the car, and the pits load).

    Some other games do work. The behaviour of which games work and which do not is completely consistent. But so far, it feels like a lot of stuff is not working.

     

    Since Im a complete noob with regards to the system, can anyone point me out to any common pitfalls, or ways to determine what Im doing wrong? Is this behaviour related to a hardware faillure?

     

    I hope that you guys can shed some knowledge :)

     

    Regards,

    Wietze

     

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