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General chat about Amiga topics / Re: My Checkmate A1500 Plus Amiga 1200 Project
« Last post by trekiej on October 14, 2021, 06:08:27 PM »
 :( Rest in Peace.
General chat about Amiga topics / Re: My Checkmate A1500 Plus Amiga 1200 Project
« Last post by kolla on October 14, 2021, 03:42:07 PM »
Sad to hear :(
@Pat I have a video toaster unfortunately so that's right out :P

I'll have to test some different mice.  i only tried one, though it was one that works with my A1200.  It's probably just that. 

I see a number of ps/2 to 9pin adapters like this one.. https://www.ebay.com/itm/383611674085?chn=ps&norover=1&mkevt=1&mkrid=711-117182-37290-0&mkcid=2&itemid=383611674085&targetid=1262779893289&device=c&mktype=pla&googleloc=9001994&poi=&campaignid=13917593257&mkgroupid=128459893881&rlsatarget=pla-1262779893289&abcId=9300613&merchantid=113781450&gclid=Cj0KCQjwqp-LBhDQARIsAO0a6aI4nEdp1GJnICIgJgGYmT-cQAa_P2HklYz9J30ucAjzSGSKHIClE5AaAnIsEALw_wcB

I would feel better using a ps/2 mouse rather than usb just because i could see it being closer to the era.. less voltage expectation..

the 9 pin connectors are healthy.  so i don't think it's a connectivity issue, but i'll have to troubleshoot further

I have a 6.2 rev board.  So that also makes me feel more confident its the mouse not the motherboard.

Cool glad to know the visuals are 1:1 in all situations with composite (except grayscale)

Yea i'll take the drives out and give a good cleaning.  Lord knows they have earned it! 

Thanks for those shortcuts.. i've never used any of this even back when i was an exclusive user of the amiga.. heh.  :)    the more you know! 
General chat about Amiga topics / Re: My Checkmate A1500 Plus Amiga 1200 Project
« Last post by JKD on October 14, 2021, 10:20:36 AM »
I was the purchaser of this system from the Marketplace here,

I heard back from Todd's wife yesterday and sad to say that he has left us. :-(

Godspeed Todd!
General chat about Amiga topics / Re: BlitzBasic2 and interlace mode
« Last post by Pat the Cat on October 14, 2021, 03:35:54 AM »
Using copper to get interlace is involved, consult Hardware Reference Manual.

Using Blitz 2 to open an Intuition screen in interlace is pretty easy as per page 173;-


EDIT: The problem with interlace is that the start address of each bitplane has to be changed after each raster frame.

On a non-interlaced screen, the data read position is just reset back to the start address at the end of each frame.

This is no good for interlace, first the even frame is displayed, and the next video frame, the odd lines are displayed.

This makes for a convoluted copper list, having to change the bitplane start position on each frame.

Hey, you wanted total control in assembler. You got it. :)
Oh yeah, one other thing you might be interested in is RGB2HDMI, you can fit an A2000 version of that into the video slot. Gives a nice hires HDMI port, no flicker. Doesn't do superhires though.
Amiga Software Issues and Discussion / Re: Give me a hint!
« Last post by Minuous on October 14, 2021, 12:53:11 AM »
AmigaOS, including OS3.2, doesn't have any concept of different users. I would suggest reading the AmiTCP documentation, it should explain exactly what it is expecting in this field.
Amiga Software Issues and Discussion / Give me a hint!
« Last post by bradhansen1@cox.net on October 14, 2021, 12:01:24 AM »
Hello all, Setting up my new A1200 and trying to get on the net. I am installing
the latest version of AmiTCP 30 something, and at one point as I am going through the install
a window pops up and wants to know my "Root" login information, name and password.
I ignore this cause I have no idea what that is. So then I finish the install, "Install complete"
and so I restart my Amiga. First thing that pops up is a window wanting my Root login
information. Huh??? I never had any, never saw any place to set that up and I am running
OS 3.2 with the new ROMs. I try to restart with the 3.2 Workbench floppy same result.
Does anyone know the standard information it's looking for or how to break this to get
to a Shell command? Any help is much appreciated.
Brad Hansen
ok thanks for that.. yea i figured out it was the left..  now i just hope its ok and it's just my usb adapter that doesn't work well with it.  do you know if there is a particularly good usb/ps2 adapter for the A2000 so I know I have something good?  I have one coming in the mail because i wanted to have one for my A1200 still.. but sadly it looks like it's the same one that I have now..  could it be that some usb optical mice don't work great with these usb to amiga mouse adapters?

Not really. They connect a little differently, that's for sure. But the principal is the same. They do need power, maybe the power pin isn't connected.

IF the ports were for some reason bad, what chip would be responsible for that and how hard would it be to repair? 

Most of the time it's physical damage to the 9 pin connector caused by rage throwing the mouse or joystick. That's a little tricky because you need a fair bit of heat to get the things out of the board. Maybe a broken pin can be bridged, but it's usually a replace job. There are replacements for the port, but the modern ones aren't as solid as the originals.

If you are talking about the adapter getting power OK|, the port is OK, then the mouse pulses from movement get buffered in one chip before being read by Denise. It's nearly always the bufffer chip isn't working. U202 on the schematic (does both ports). the signals are labelled M0V, M0H, M1V, M1H. The type of chip is an 74LS157. The actual connections are listed in the schematic link, Pages "Paula" for the ports, and page "Denise" for where the signals for mouse movement are read by the machine,..

This is all for a Rev 6.2 board, you might well have earlier.

Yes you are correct again the one on the right is the zero drive and what it tries to boot from.. but i have little confidence the disks I'm using.  Most are later 2.05 and later OS expecting disks..  i'm using the mono output for now..  which should show anything that comes out of the RGB port right?  just grayscale?  like if I booted from a lemmings disk (not that i have that game) I'd see everything just in b/w?

Normal for A500 and A2000. Phono composite is grey scale, but colour from RGB port OK.

I haven't tried swapping the drives to see if maybe the other works better?  i have a disk cleaning disk I can pop in there to help insure the heads are clean..  the right drive seems to behave healthy.  sounds good but yea could be sick..  i've used pressured air to blow out dust from around the area and throughout the Box.  Nothing scary came out.. just some acceptable dust bunnies

Not just cleaning, also a little lube on the worm gear that moves the heads across the disk.

Good channel for that stuff (techniques);-


Well according to the seller the TF cards work like this..   If no 3.1 or newer..  no ram..  no CF card..  and 030 defautls to 7mhz for compatibility..  so yea the card does still "work" without 3.1+ but i figure what's the point if nothing actually improves with it in..  so I'll keep the card out till I replace the rom..  and i have to install the denise scan doubler as well when it arrives

I didn't know about the hot key!  I will try that out tonight.. and swap the disk drives on the chance that left drive might be in better working order..


The really funky shortcuts let you flip between running programs.
@First Ninja
We are always prepared to re-invest in these type of software development projects.  The profits we make from our sales routinely get ploughed back every year into new Amiga hardware and software.

First a review of the dependencies would be needed.  I can see that Python 3 and pyserial libraries are required.  This is not going to be a straight forward port.  More investigation is needed.

Thank you for answering. Your general stance about re-investing in Amiga support is potentially good news for the GreaseWeazle. While most solutions would be welcome, building a native AmigaOS version that fully exploits the OS would likely do the GreaseWeazle even more justice.

Implementing the support as a trackdisk.device compatible AmigaOS device, allowing Workbench to access FFS formatted floppies, is strongly encouraged. Even with a basic, read-only version it would make the GreaseWeasle an instabuy item for me. Thank you for considering it 👍.
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