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Search: Posts Made By: pandy71
Forum: Coders. Asm / Hardware Yesterday, 00:39
Replies: 29
Views: 884
Posted By pandy71
Another solution is to not use all 'new' colors...

Another solution is to not use all 'new' colors in first line - with careful sorting what colors need to appear as first you may use two slots to alter all 16 CLUT entries.
This apply to last line...
Forum: support.Hardware Yesterday, 00:31
Replies: 3
Views: 214
Posted By pandy71
My assumption is that you referring to ceramic...

My assumption is that you referring to ceramic resonator for keyboard uC (MPU) - this is not quartz (crystal) oscillator but ceramic resonator - perhaps you can made picture for requested part (place...
Forum: Hardware mods Yesterday, 00:14
Replies: 6
Views: 613
Posted By pandy71
Had no access to FV-1 SPN1001...

Had no access to FV-1 SPN1001 (http://www.spinsemi.com/products.html) but it looks very tempting from Amiga perspective as it can firstly mix both channels to reduce separation but additionally it...
Forum: support.Hardware 19 January 2022, 20:50
Replies: 3
Views: 214
Posted By pandy71
https://www.digikey.com/en/products/filter/crystal...

https://www.digikey.com/en/products/filter/crystals/171?s=N4IgjCBcpgnAHLKoDGUBmBDANgZwKYA0IA9lANogAMIAusQA4AuUIAykwE4CWAdgOYgAvsQBMYAKw1oINJCx4ipCiADMAAgCyACQBedRi0ggAqr25MA8uk35MuAK6d8woUKA
Forum: Amiga scene 18 January 2022, 23:52
Replies: 4
Views: 306
Posted By pandy71
Key to sync audio and video is to use proper...

Key to sync audio and video is to use proper audio sampling rate - commonly, also on this forum you can see lot of people that don't care that Amiga can't set arbitrary sample rate, commonly you can...
Forum: support.Hardware 18 January 2022, 23:22
Replies: 26
Views: 1,889
Posted By pandy71
:great this is really nice - my assumption is...

:great this is really nice - my assumption is that in original design 1ohm resistors together with some decoupling capacitance created low pass filter but i have impression that audio quality was...
Forum: support.Hardware 18 January 2022, 21:05
Replies: 26
Views: 1,889
Posted By pandy71
You could record (PC card or external audio...

You could record (PC card or external audio interface) noise level (silence sample) with active system (floppy, mouse activity) before and after modifications - this would give final answer for all...
Forum: Retrogaming General Discussion 07 January 2022, 21:17
Replies: 26
Views: 1,482
Posted By pandy71
Some models are very desired and in fact there is...

Some models are very desired and in fact there is quite huge demand for good condition VHS players...
Just check https://www.videohelp.com/ how frequently people searching for them... some even...
Forum: support.Hardware 07 January 2022, 21:07
Replies: 15
Views: 528
Posted By pandy71
Technically it may reduce wear of the floppy... ...

Technically it may reduce wear of the floppy...

Some wet play techniques are used on vinyl discs https://www.vinylengine.com/turntable_forum/viewtopic.php?t=22360

Also wet film scanning is...
Forum: support.Hardware 07 January 2022, 14:36
Replies: 15
Views: 528
Posted By pandy71
No, no, no! no hot air, no acetone! In typical...

No, no, no! no hot air, no acetone! In typical label removers light paraffin oil (kerosene (https://en.wikipedia.org/wiki/Kerosene#Solvent)) is used as a main ingredient - it is safe for plastics,...
Forum: Retrogaming General Discussion 07 January 2022, 14:09
Replies: 26
Views: 1,482
Posted By pandy71
Me...? Of course not me, future is already told...

Me...? Of course not me, future is already told (only few examples) read Huxley "Brave, new world", read Orwell "1984", read Harrison "Make Room! Make Room!" (and based on this novel movie "Soylent...
Forum: Retrogaming General Discussion 06 January 2022, 01:38
Replies: 26
Views: 1,482
Posted By pandy71
Are you sure...? There is lot changes currently...

Are you sure...? There is lot changes currently going in some countries around the world - even if some movies are available then you must be educated to understand that they are wrong and should be...
Forum: support.Hardware 22 December 2021, 23:03
Replies: 30
Views: 2,381
Posted By pandy71
Well... clock port is similar hack to my proposal...

Well... clock port is similar hack to my proposal IDE hack - there is only one difference - clock port is 8 bit where IDE port is 16 bit that's all...

of course you can use clock port or even add...
Forum: Coders. Asm / Hardware 22 December 2021, 22:35
Replies: 275
Views: 251,581
Posted By pandy71
So if video HW can be programmed to start...

So if video HW can be programmed to start displaying data 12us from line beginning then Amiga should be capable to produce valid WST teletext data.



yes, i agree, i intended to propose this -...
Forum: Coders. Asm / Hardware 21 December 2021, 18:13
Replies: 275
Views: 251,581
Posted By pandy71
Once again - WST TTX occupy VBI (Video Blank...

Once again - WST TTX occupy VBI (Video Blank Interval) lines normally not visible on screen ( quoting ETS 300 706 "Lines 6 to 22 and 318 to 335 may be used to carry Teletext data packets.") and those...
Forum: Coders. Asm / Hardware 18 December 2021, 21:36
Replies: 275
Views: 251,581
Posted By pandy71
If i understand correctly your question then seem...

If i understand correctly your question then seem TTX (i assume WST standard) data are in area (lines) that can't be normally used to display video - IIRC Amiga start displaying video in PAL 2 lines...
Forum: Coders. Asm / Hardware 17 December 2021, 22:19
Replies: 275
Views: 251,581
Posted By pandy71
Once again - ERSY solve problem from genlock...

Once again - ERSY solve problem from genlock perspective - whether it is implemented with XCLK or not this is different topic - some genlocks not use XCLK and some use it. From typical analog...
Forum: Nostalgia & memories 16 December 2021, 23:27
Replies: 46
Views: 3,379
Posted By pandy71
1. What systems/OS's did you start with ? ...

1. What systems/OS's did you start with ?

Privately it was Amiga (yes, my first private computer was Amiga 500 - don't getting into details but in my country computers was very expensive and...
Forum: support.Hardware 16 December 2021, 23:04
Replies: 14
Views: 946
Posted By pandy71
For sure i will no hang my self - definitely it...

For sure i will no hang my self - definitely it was worth to try - nowadays it is more and more difficult to buy something that can be "dangerous" for us - our lovely governments and various...
Forum: support.Hardware 16 December 2021, 22:57
Replies: 30
Views: 2,381
Posted By pandy71
technically this can be sufficient to control MCU...

technically this can be sufficient to control MCU by some form of primitives and MCU can control SID precisely with possibility to use advance tricks same as on C64.
Forum: support.Hardware 16 December 2021, 22:56
Replies: 30
Views: 2,381
Posted By pandy71
Then you need Zorro slots - this is only way to...

Then you need Zorro slots - this is only way to avoid "sandwich".



Buffered IDE splitter?
Forum: Coders. Asm / Hardware 16 December 2021, 22:51
Replies: 275
Views: 251,581
Posted By pandy71
Genlocks usually not feeding new crystal clock to...

Genlocks usually not feeding new crystal clock to the Amiga - Genlock use H and V lines (ERSY mode) to tell Amiga to synchronize H and V sync with external pulses so Amiga can track external video...
Forum: Retrogaming General Discussion 15 December 2021, 22:12
Replies: 12
Views: 780
Posted By pandy71
Isn't PS Store for PS3 was already severely...

Isn't PS Store for PS3 was already severely limited?- get few months ago notification about changes - seem you should be able to re-download already bought games but you can't buy anything new...
...
Forum: support.Hardware 14 December 2021, 22:25
Replies: 14
Views: 946
Posted By pandy71
Small UV LED may deliver long erase time - older...

Small UV LED may deliver long erase time - older nail hardener use hot cathode lamp (avoid fluorescent name as usually there is no phosphor there). LED i advised is 275nm i.e. way more energetic than...
Forum: support.Hardware 13 December 2021, 22:28
Replies: 14
Views: 946
Posted By pandy71
UV LED should do job as well, there is plenty UV...

UV LED should do job as well, there is plenty UV stations for nail lacquer hardening - some of them use mercury bulbs, some modern UV LED's... EPROM will need probably longer time of exposition but...
Forum: support.Hardware 11 December 2021, 00:29
Replies: 26
Views: 1,889
Posted By pandy71
Issue is not in level but in inability to isolate...

Issue is not in level but in inability to isolate analog circuitry from digital part as they share same power line - unless Paula has embedded some fancy circuitry to provide true reference...
Forum: Hardware mods 10 December 2021, 15:44
Replies: 6
Views: 769
Posted By pandy71
You may have even 32 bits and from HW perspective...

You may have even 32 bits and from HW perspective there is nothing too complicated for nowadays technology - software is something more problematic but still possible. Technically you may use USB...
Forum: Hardware mods 09 December 2021, 23:00
Replies: 165
Views: 27,799
Posted By pandy71
NP, from my perspective anything starting by 74...

NP, from my perspective anything starting by 74 immediately trigger TTL.
Fair approach but probably everyone capable to order PCB (as probably nobody nowadays doing PCB by himself) and solder all...
Forum: support.Hardware 09 December 2021, 22:51
Replies: 30
Views: 2,381
Posted By pandy71
Ok, lets remove IDE port from list (it was my...

Ok, lets remove IDE port from list (it was my fault to put this stupid idea that confuse so many forum users) - for maximum compatibility parallel port seem to be best but it may be unable to provide...
Forum: support.Hardware 08 December 2021, 23:31
Replies: 30
Views: 2,381
Posted By pandy71
Are you familiar with concept of the piggyback? ...

Are you familiar with concept of the piggyback?
As SID require PCB anyway then adding passtrough IDE connector looks to me pretty obvious - of course there are concerns raised by Daedalus associated...
Forum: support.Hardware 08 December 2021, 00:29
Replies: 30
Views: 2,381
Posted By pandy71
So please go back to...

So please go back to http://eab.abime.net/showpost.php?p=1520574&postcount=11

Replied to concerns raised by you - from my perspective this is OK solution for limited address space.

if there is...
Forum: support.Hardware 07 December 2021, 22:14
Replies: 30
Views: 2,381
Posted By pandy71
Some resources in Amiga are not Autoconfig...

Some resources in Amiga are not Autoconfig controlled, they are present at fixed addresses and thank to some design shortcuts you can use them without ruin complete system functionality.



Never...
Forum: Nostalgia & memories 07 December 2021, 22:04
Replies: 65
Views: 21,105
Posted By pandy71
https://en.wikipedia.org/wiki/Susumu_Hirasawa#Comp...

https://en.wikipedia.org/wiki/Susumu_Hirasawa#Compositions

https://hirasawalyrics.tumblr.com/
Forum: support.Hardware 07 December 2021, 01:19
Replies: 30
Views: 2,381
Posted By pandy71
Use indirect addressing - two locations - one for...

Use indirect addressing - two locations - one for address, second for data.



IDE is just convenient connector with 16 bits data bus available...
Forum: Hardware mods 05 December 2021, 22:15
Replies: 165
Views: 27,799
Posted By pandy71
Great idea......

Great idea... (https://www.unf.edu/~cwinton/html/cda3101/chip.layouts/sn7442.pdf)
Forum: Nostalgia & memories 05 December 2021, 20:57
Replies: 65
Views: 21,105
Posted By pandy71
Surprised that nobody listed Susumu Hirasawa... ...

Surprised that nobody listed Susumu Hirasawa...



https://youtu.be/cEH2GzaFq0E

https://youtu.be/NvaPZBaxTMk

("Say" used for machine voice)
https://youtu.be/ZFtRmBQ0oy0
Forum: Amiga scene 05 December 2021, 20:25
Replies: 12
Views: 1,184
Posted By pandy71
No worries - to easily determine 4k res you need...

No worries - to easily determine 4k res you need at least 75' TV and for 8k over 100'.

btw ultra hi res is nothing insane but in fact quite right approach......
Forum: News 05 December 2021, 20:19
Replies: 77
Views: 8,294
Posted By pandy71
I'm sorry for your loss... my condolences

I'm sorry for your loss... my condolences
Forum: support.Hardware 05 December 2021, 20:15
Replies: 30
Views: 2,381
Posted By pandy71
IDE connector is 16 bit data bus easily...

IDE connector is 16 bit data bus easily available... Amiga IDE use CPU and IDE address space is not fully used so...
Forum: Hardware mods 05 December 2021, 20:12
Replies: 165
Views: 27,799
Posted By pandy71
74299?

74299?
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