Forum: Hardware mods
Yesterday, 10:09
|
|
Replies: 105
Views: 22,726
|
|
Forum: Hardware mods
15 April 2021, 22:17
|
|
Replies: 105
Views: 22,726
|
|
Forum: Hardware mods
09 April 2021, 13:39
|
|
Replies: 100
Views: 9,174
HC aren't 5V tolerant when powered from 3,3V. ...
HC aren't 5V tolerant when powered from 3,3V.
HCT are TTL compatible, but must be powered from ~5V, so they won't work either.
Additionally, HC(T) are much slower than LVC - how much of a role that...
|
|
Forum: support.Hardware
09 April 2021, 13:19
|
|
Replies: 14
Views: 636
Actually, booting to "workbench animation" is...
Actually, booting to "workbench animation" is "less" than booting to AmigaDOS - the "workbench animation" is in ROM, and is shown when no bootable media can be found. Obviously, you have a bootable...
|
|
Forum: Coders. Releases
05 April 2021, 13:22
|
|
Replies: 18
Views: 991
|
|
Forum: Coders. C/C++
27 March 2021, 22:36
|
|
Replies: 1,275
Views: 187,503
|
|
Forum: Hardware mods
17 March 2021, 10:24
|
|
Replies: 161
Views: 23,305
|
|
Forum: Hardware mods
11 March 2021, 14:09
|
|
Replies: 8
Views: 854
|
|
Forum: Hardware mods
11 March 2021, 11:24
|
|
Replies: 8
Views: 854
|
|
Forum: support.Hardware
09 March 2021, 23:40
|
|
Replies: 12
Views: 687
I suspect it's the specific pixel color...
I suspect it's the specific pixel color transitions causing the glitches, like e.g. high contrast ones - you compared different versions of xcopy - do they have the exact same graphics in the glitchy...
|
|
Forum: support.Hardware
06 March 2021, 11:23
|
|
Replies: 15
Views: 738
If I'm not completely crazy, the clock for the...
If I'm not completely crazy, the clock for the flipflops is twice (14MHz) the frequency of the clock going to the Pi (PiClk), hence my assumption that it samples on both edges (to support hires).
...
|
|
Forum: support.Hardware
05 March 2021, 11:27
|
|
Replies: 15
Views: 738
|
|
Forum: support.Hardware
04 March 2021, 21:38
|
|
Replies: 15
Views: 738
So I received my prototype pcb's for my attempt...
So I received my prototype pcb's for my attempt at a videoslot version of the RGBtoHDMI project today.
Instead of immediately populating a pcb, I dug out my oscilloscope and added some patch wires...
|
|
Forum: Coders. General
03 March 2021, 09:49
|
|
Replies: 199
Views: 7,741
|
|
Forum: Amiga scene
26 February 2021, 09:50
|
|
Replies: 34
Views: 2,740
If you mean the reflective vector objects,...
If you mean the reflective vector objects, they're "just" stencil vectors, i.e. instead of filling with a solid color, you fill with a bitmap - it does look rather convincing, though :)
|
|
Forum: support.Hardware
25 February 2021, 17:12
|
|
Replies: 3
Views: 209
|
|
Forum: Coders. Asm / Hardware
24 February 2021, 10:19
|
|
Replies: 10
Views: 766
|
|
Forum: Coders. Asm / Hardware
20 February 2021, 11:54
|
|
Replies: 51
Views: 3,583
|
|
Forum: Coders. Asm / Hardware
19 February 2021, 21:58
|
|
Replies: 51
Views: 3,583
|
|
Forum: support.Hardware
13 February 2021, 16:50
|
|
Replies: 15
Views: 738
|
|
Forum: support.Hardware
13 February 2021, 16:48
|
|
Replies: 15
Views: 738
|
|
Forum: support.Hardware
13 February 2021, 15:50
|
|
Replies: 15
Views: 738
Thanks.
I already stumpled on that other...
Thanks.
I already stumpled on that other thread, but can't find those documents on the file server.. There's no 'Commodore_Amiga' root directory.
"Shifting it by 90 degrees" - yes, but in...
|
|
Forum: support.Hardware
13 February 2021, 10:29
|
|
Replies: 15
Views: 738
Hmm... I found this ...
Hmm... I found this (http://www.devili.iki.fi/mirrors/haynie/systems/amiga2k/docs/video.txt)earlier, which seems to be straight from the horses mouth, but something's weird about the description of...
|
|
Forum: support.Hardware
13 February 2021, 00:17
|
|
Replies: 15
Views: 738
Requesting info on video slot clocks
Is there any (C= official?) timing diagrams available for the video clock signals (CDAC, C1, C3, C4, C28O) showing the relationship of these to the digital RGB outputs of Denise/Lisa?
For...
|
|
Forum: Coders. Asm / Hardware
12 February 2021, 21:04
|
|
Replies: 12
Views: 1,015
And not forgetting setting the VBR to zero.
...
And not forgetting setting the VBR to zero.
I wrote the degrader tool called Embedder, but I don't recall having the SR trap in there - I think it only resets the viewport, vbr and disables caches.
|
|
Forum: support.Hardware
12 February 2021, 15:22
|
|
Replies: 24
Views: 1,078
On the rev 8 there has to be jumpers to switch...
On the rev 8 there has to be jumpers to switch between 512kB/512kB and 1MB since it's used for both A500 and A500+ - I think you need a trapdoor expansion for the 512kB slowfast though (rendering...
|
|
Forum: support.Hardware
12 February 2021, 13:23
|
|
Replies: 24
Views: 1,078
|
|
Forum: News
10 February 2021, 18:27
|
|
Replies: 24
Views: 2,891
Thanks. The thing with AGA is that the clocks...
Thanks. The thing with AGA is that the clocks available on Lisa pins are a little different - as far as I understand, it mainly runs on the 28Mhz clock (also used as pixel clock) which is also needed...
|
|
Forum: News
10 February 2021, 12:10
|
|
Replies: 24
Views: 2,891
Test/development pcb for a video slot solution...
Test/development pcb for a video slot solution I'm working on that is aimed at all Amigas with video slot. It's prepared to support 24-bit colour, but some changes to the Pi firmware are needed - I...
|
|
Forum: support.Hardware
08 February 2021, 23:16
|
|
Replies: 24
Views: 1,078
As far as I know, The A500's with rev 8 boards...
As far as I know, The A500's with rev 8 boards were configured just like an A500 - 512KB chip, 512KB slowfast if you add a trapdoor expansion, no clock/battery, Kick 1.3.
I'm not sure which Agnus...
|
|
Forum: Coders. Asm / Hardware
08 February 2021, 23:09
|
|
Replies: 21
Views: 1,156
I'm not sure what you mean by "target an...
I'm not sure what you mean by "target an instruction", but if you're trying to check if e.g. a vector in an OS library is available, you should check the version of the library, not the kickstart.
|
|
Forum: support.Hardware
08 February 2021, 10:16
|
|
Replies: 6
Views: 282
|
|
Forum: Hardware mods
05 February 2021, 22:12
|
|
Replies: 24
Views: 3,415
The main concern is that some old games/demos...
The main concern is that some old games/demos won't work correctly without slow-ram, and by that I mean not only the memory map location (C00000), but also the speed. If your project is aimed at...
|
|
Forum: Hardware mods
03 February 2021, 23:25
|
|
Replies: 14
Views: 1,035
|
|
Forum: News
02 February 2021, 16:53
|
|
Replies: 24
Views: 2,891
|
|
Forum: support.Other
28 January 2021, 11:22
|
|
Replies: 14
Views: 1,076
|
|
Forum: support.Other
27 January 2021, 20:44
|
|
Replies: 14
Views: 1,076
Yes, this is a common problem of simple 14MHz...
Yes, this is a common problem of simple 14MHz "accelerators". The CIAs are clocked by the 'E' clock signal from the 68000, which is doubled when you double the cpu clock. The 'E' clock is something...
|
|
Forum: Coders. General
27 January 2021, 11:07
|
|
Replies: 88
Views: 5,794
|
|
Forum: Hardware mods
26 January 2021, 23:03
|
|
Replies: 100
Views: 9,174
That's an interesting idea - I think the same...
That's an interesting idea - I think the same solution could work in all models. If not, maybe a jumper for the pixel clock might be needed to also support A4000.
Edit: The A4000 video slot is...
|
|
Forum: Hardware mods
26 January 2021, 22:04
|
|
Replies: 100
Views: 9,174
|
