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Search: Posts Made By: MiaM
Forum: Hardware mods 30 June 2022, 07:04
Replies: 7
Views: 1,919
Posted By MiaM
Just to double check: Are you 100% sure that the...

Just to double check: Are you 100% sure that the ribbon cable works correctly and isn't inserted the wrong way around? Drive spinning constantly, LED on and the computer thingking that the drive is...
Forum: support.Apps 07 May 2022, 05:59
Replies: 7
Views: 1,862
Posted By MiaM
Sorry for giving almost the worst advice ever,...

Sorry for giving almost the worst advice ever, but from memory I usually just downloaded/copied every archive version I could find of a program that I wanted to run in ShapeShifter, and then I think...
Forum: Hardware mods 28 March 2022, 03:25
Replies: 4
Views: 1,667
Posted By MiaM
It won't look as nice but a bunch of discrete 68...

It won't look as nice but a bunch of discrete 68 ohm resistors should work fine. I would go for that rather than taking a chance at using the wrong value.
Forum: Coders. Asm / Hardware 21 December 2021, 02:12
Replies: 338
Views: 387,912
Posted By MiaM
That part, i.e. which part of the screen can...

That part, i.e. which part of the screen can video output be enabled on, could be overcome by just providing the external sync signals to the Amiga slightly time shifted as compared to the timing of...
Forum: Coders. Asm / Hardware 18 December 2021, 11:45
Replies: 338
Views: 387,912
Posted By MiaM
Btw, with both an external clock to generate the...

Btw, with both an external clock to generate the correct data rate for teletext, and external sync, could this maybe even work on OCS machines? That would likely require the sync signals towards the...
Forum: Coders. Asm / Hardware 15 December 2021, 04:59
Replies: 338
Views: 387,912
Posted By MiaM
Not exceeding 1-2% would likely be a requirement...

Not exceeding 1-2% would likely be a requirement for normal operation of everything. Mostly the serial port and the floppy controller will operate incorrectly if the clock deviates more. But I very...
Forum: Coders. Asm / Hardware 14 December 2021, 05:07
Replies: 338
Views: 387,912
Posted By MiaM
External clock was my thinking too. That would...

External clock was my thinking too. That would also act as a relatively effective hardware dongle for anyone trying to copy the software.

The hardware would also need to contain a genlock and to...
Forum: Coders. Asm / Hardware 12 December 2021, 19:23
Replies: 338
Views: 387,912
Posted By MiaM
Wow. Had this been known/understood by people in...

Wow. Had this been known/understood by people in general back in the days I bet someone would had made an expansion providing a slightly slower pixel/system clock (iirc 6.9x *4 rather than 7.14*4)...
Forum: Hardware mods 09 December 2021, 15:32
Replies: 5
Views: 1,706
Posted By MiaM
Back in the days I had a similar board and with a...

Back in the days I had a similar board and with a Gary adapter and an Agnus adapter it was possible to have both 1M chip and 1.5M ram. However that didn't work well with any other expansions so I...
Forum: Hardware mods 15 November 2021, 22:24
Replies: 3
Views: 1,382
Posted By MiaM
If the orgiginal CD32 power supply has an...

If the orgiginal CD32 power supply has an ungrounded mains plug then you could have damaged something due to a ground loop (either if the monitor is grounded through a completely different wall...
Forum: Hardware mods 16 October 2021, 01:03
Replies: 53
Views: 13,624
Posted By MiaM
I would say that whoever is selling premade TF...

I would say that whoever is selling premade TF cards and not informing about DMA mask and similar things is the bad guy here. Seems like this is a "post the same thing over and over again on repeat"...
Forum: support.WinUAE 16 October 2021, 00:53
Replies: 5
Views: 1,901
Posted By MiaM
Just copy each ST-xx disk to separate...

Just copy each ST-xx disk to separate directories, preferably named the same as the disks. Say for example DH0:samples/ST-01 and so on. Then add to S:user-startup a line for each "disk", something...
Forum: Hardware mods 14 October 2021, 09:56
Replies: 53
Views: 13,624
Posted By MiaM
A work around would likely be to us HdToolBox and...

A work around would likely be to us HdToolBox and set MASK to $1FFFFF.

That way the A2091 will only do DMA to chip mem and the driver will use the CPU to move data between FAST and temporary...
Forum: Hardware mods 21 February 2021, 04:38
Replies: 3
Views: 884
Posted By MiaM
At a fulll load, you would have 0 volts and thus...

At a fulll load, you would have 0 volts and thus no power, only corrent.

The maximun power draw would be at 2,5V and then you'd need a step-up regulator to get the 5V that a P/S2 or USB mouse...
Forum: support.Apps 02 February 2021, 04:02
Replies: 13
Views: 1,359
Posted By MiaM
Were the CF card written using your Amiga or...

Were the CF card written using your Amiga or written with a CF reader on a modern PC?

Could it simply be that your card is larger than 4GB and your drivers/filesystem on the Amiga only support...
Forum: support.Hardware 02 February 2021, 03:55
Replies: 7
Views: 1,643
Posted By MiaM
A factor that hasn't been mentioned yet is what...

A factor that hasn't been mentioned yet is what you have access to. If you have an empty eprom and an eprom programmer I chime in with those who suggest 3.1.

But if you have a 2.04 rom sitting...
Forum: Hardware mods 02 February 2021, 03:14
Replies: 208
Views: 48,966
Posted By MiaM
The perhaps ugliest of all ungly kludgy hacks to...

The perhaps ugliest of all ungly kludgy hacks to get both the 8MB expansion and an A590 to both autoconfigure would be to add a counter that counts clock cycles (perhaps the E clock to save bits on...
Forum: Hardware mods 10 December 2020, 03:24
Replies: 45
Views: 34,781
Posted By MiaM
Some general things re the various turns this...

Some general things re the various turns this thread has taken:

The circuit on a regular external drive for an Amiga does two things:
A) Identifies to the Amiga that there is a drive connected,...
Forum: support.Hardware 07 December 2020, 18:33
Replies: 5
Views: 746
Posted By MiaM
If you decide to build one yourself, I suggest...

If you decide to build one yourself, I suggest you buy a decent (one of the thicker ones) scart wire at a thrift store. Sure, it's almost impossible to fit the wires in the mini DIN connector, but it...
Forum: Hardware mods 25 November 2020, 18:40
Replies: 9
Views: 2,168
Posted By MiaM
Re front panel: Maybe you can make one out of a...

Re front panel: Maybe you can make one out of a blind cover plate for the PC case? Drill or chisel (use a real chisel or a flat blade screwdriver) out roughly where the holes should go, but make them...
Forum: Hardware mods 03 November 2020, 16:32
Replies: 27
Views: 3,687
Posted By MiaM
My guess is that it's either ESD related or...

My guess is that it's either ESD related or related to grounding of the Amiga and the soldering iron.

You should electrically connect the soldering iron with ground on the PCB you are working on...
Forum: Hardware mods 16 October 2020, 05:14
Replies: 8
Views: 2,223
Posted By MiaM
Nice project! This seems like something that...

Nice project!

This seems like something that could be done to hardware that uses those rare GVP SIMMs too, like for example the GeForce 68030 accelerator for the Amiga 2000.
Forum: Coders. Asm / Hardware 14 October 2020, 01:48
Replies: 32
Views: 4,111
Posted By MiaM
Interesting discussion! Re buffering the...

Interesting discussion!

Re buffering the data: Back in the 80's and 90's you would had to use DRAM to get a reasonable price Back then DRAMs were typically rarely used by amateurs as they were...
Forum: Hardware mods 11 September 2020, 14:13
Replies: 11
Views: 1,805
Posted By MiaM
Side track, -ish: The experience me and a some...

Side track, -ish: The experience me and a some friends had back in the 90's was that although the 4.5A PSU initially as expected could handle more load than the 2.5A PSU but over relatively short...
Forum: Hardware mods 01 September 2020, 00:27
Replies: 2
Views: 1,527
Posted By MiaM
It's a multi stage process. Pressing...

It's a multi stage process.

Pressing ctrl+amiga+amiga makes the keyboard send a reset warning message. The computer can either answer immediately or defer the actual reset for a certain period....
Forum: Hardware mods 17 July 2020, 07:04
Replies: 4
Views: 1,363
Posted By MiaM
Once upon a time some equipment used a DA15 dsub...

Once upon a time some equipment used a DA15 dsub connector (15 pins, two rows, same spacing as the connectors used for mouse/joystick, serial, parallell, floppy, rgb and scsi on Amigas) for VGA style...
Forum: Hardware mods 27 April 2020, 23:16
Replies: 7
Views: 2,109
Posted By MiaM
A2000 should be fairly easy, kind of just the...

A2000 should be fairly easy, kind of just the reverse of a one-Zorro-II-slot adapter for A500/A2000. One caveat is that it needs to be the last board in the Zorro II autoconfig chain as there are...
Forum: Hardware mods 10 March 2020, 19:20
Replies: 145
Views: 48,932
Posted By MiaM
Hi! I'm pretty sure that this is the 14MHz...

Hi!

I'm pretty sure that this is the 14MHz accelerator I did build back in the early 90's.

I used the CDAC signal (or whatever it's called) rather than any analogue delay circuit to generate...
Forum: News 01 July 2019, 13:19
Replies: 46
Views: 9,092
Posted By MiaM
Great rescue/find and a great video! Re the...

Great rescue/find and a great video!

Re the monitor settings:

It looks like the modes that didn't display well were some of the DBL*** / Multiscan modes. I've never heard of an A1084 that can't...
Forum: support.Hardware 18 June 2018, 00:00
Replies: 18
Views: 5,257
Posted By MiaM
Floppy disk Reading/writing AdIDE disk images (with UAE or other tools)

Hi!

I hope it's okay to dig up an old thread.

I'm new to this forum but not to Amiga. This is the first thing I write on this forum.

I just aquired an A500 with an AdIDE.

I read out the...
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