A1200 Replica PCB Progress - Page 5

Chucky · 17 July 2018, 19:06

removing the 23pin dsub would making all persons using SCART etc go mayhem. and external scandoublers etc.. so.. no.. not an option

solidcore · 17 July 2018, 19:58

Quote:

Originally Posted by Chucky

removing the 23pin dsub would making all persons using SCART etc go mayhem. and external scandoublers etc.. so.. no.. not an option

Chucky, keep 1:1 imo , my a500+ in black is 1:1 without changes because I started to think how this should be a replacement PCB for damage boards and not extend or change the way amiga was designed. If people want that it's an accelerator board, a hack etc... I'm thinking in that sense.

Chucky · 17 July 2018, 20:01

it will be close to 1:1 but I will change the video curcuit to get rid of the delaylines.. and add some small patches.. nothing big.

solidcore · 18 July 2018, 14:04

Quote:

Originally Posted by Chucky

it will be close to 1:1 but I will change the video curcuit to get rid of the delaylines.. and add some small patches.. nothing big.

sounds good

kolla · 18 July 2018, 14:36

PCMCIA reset fixes?

rzookol · 18 July 2018, 15:08

Pinouts for external keyboard like in 1200 2b would be good.

And support for 020@28MHz (if it's doable easily)

Chucky · 18 July 2018, 15:43

PCMCIA reset fix will be done
Keyboard pins will be there
I will also add optional leds on the motherboard for all leds etc. good for troubleshooting (and looks nice in transluent cases

)
reset jumper
mono-jumper
NMI jumper

and that is basically it now.

will investigate 28MHz possability at later versions

Marlon_ · 18 July 2018, 16:15

Quote:

Originally Posted by Chucky

PCMCIA reset fix will be done
Keyboard pins will be there
I will also add optional leds on the motherboard for all leds etc. good for troubleshooting (and looks nice in transluent cases

)
reset jumper
mono-jumper
NMI jumper

and that is basically it now.

will investigate 28MHz possability at later versions

A500 keyboard pins?

Chucky · 18 July 2018, 16:46

Quote:

Originally Posted by marlon_

a500 keyboard pins?

yup!

kolla · 18 July 2018, 18:39

Quote:

Originally Posted by rzookol

Pinouts for external keyboard like in 1200 2b would be good.

Huh, never knew that 2b has pinouts for external keyboard... where are they?

Chucky · 18 July 2018, 19:05

close to the LED connector there you can see some solderholes.. thats where you can solder in a connector

Chucky · 18 July 2018, 22:34

OK! I am not done with the Amiga 1200 PCB 1D.4 1:1 clone.. I will release the files for all when i have a booting board! BUT! if you want to take a peek. I have done a version that I call "Phase 5" version. it is somewhat.. let me say. modified...

http://www.hertell.nu/files/A1200-pcbPRERELEASE.zip

all signals are there. for anyone to test and verify if I have done right..

I will not start with my modded version. that version I actually WILL produce PCBs of. planning to order the pcbs like monday/tuesday..

Kai · 18 July 2018, 22:54

Possibility of replacing the QFP EC020 with the full fat 020 socket?

Chucky · 18 July 2018, 22:55

not easy.. so.. no

Kai · 18 July 2018, 23:11

Thought that may have been the case, sorry, was having a dim moment!

JLPedro · 19 July 2018, 08:10

Thanks for the enormous work on this

Is it possible to leave a jumper switch for booting from DF0 / DF1?

Think it would be pretty simple and something worth.

kolla · 19 July 2018, 12:06

Quote:

Originally Posted by JLPedro

Is it possible to leave a jumper switch for booting from DF0 / DF1?

I think you mean something else, a jumper to disable internal floppy port and make the external floppy start at DF0?

Because... any Amiga can already boot from any DF0 to DF3

Chucky · 19 July 2018, 12:35

or a switchingpossability between df0/df1 ID numbers. so you can boot from external gotek on software that are hardcoded df0

ajk · 19 July 2018, 16:23

A hard drive and floppy terminator jumper would not be a bad idea either. Sometimes one or both are not installed and then there is a boot delay as everyone probably knows all too well

Chucky · 19 July 2018, 16:26

Quote:

Originally Posted by ajk

A hard drive and floppy terminator jumper would not be a bad idea either. Sometimes one or both are not installed and then there is a boot delay as everyone probably knows all too well

never bothered to look how a IDE terminator looks like. maybe I should

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17 July 2018, 19:06	#81
Chucky Registered User Join Date: Mar 2015 Location: Karlstad / Sweden Age: 52 Posts: 1,210	removing the 23pin dsub would making all persons using SCART etc go mayhem. and external scandoublers etc.. so.. no.. not an option

17 July 2018, 20:01	#83
Chucky Registered User Join Date: Mar 2015 Location: Karlstad / Sweden Age: 52 Posts: 1,210	it will be close to 1:1 but I will change the video curcuit to get rid of the delaylines.. and add some small patches.. nothing big.

18 July 2018, 14:36	#85
kolla Banned Join Date: Nov 2007 Location: Trondheim, Norway Posts: 1,893	PCMCIA reset fixes?

18 July 2018, 15:08	#86
rzookol Registered User Join Date: Mar 2007 Location: Stasin/Poland Posts: 46	Pinouts for external keyboard like in 1200 2b would be good. And support for 020@28MHz (if it's doable easily)

18 July 2018, 15:43	#87
Chucky Registered User Join Date: Mar 2015 Location: Karlstad / Sweden Age: 52 Posts: 1,210	PCMCIA reset fix will be done Keyboard pins will be there I will also add optional leds on the motherboard for all leds etc. good for troubleshooting (and looks nice in transluent cases ) reset jumper mono-jumper NMI jumper and that is basically it now. will investigate 28MHz possability at later versions

18 July 2018, 19:05	#91
Chucky Registered User Join Date: Mar 2015 Location: Karlstad / Sweden Age: 52 Posts: 1,210	close to the LED connector there you can see some solderholes.. thats where you can solder in a connector

18 July 2018, 22:34	#92
Chucky Registered User Join Date: Mar 2015 Location: Karlstad / Sweden Age: 52 Posts: 1,210	OK! I am not done with the Amiga 1200 PCB 1D.4 1:1 clone.. I will release the files for all when i have a booting board! BUT! if you want to take a peek. I have done a version that I call "Phase 5" version. it is somewhat.. let me say. modified... http://www.hertell.nu/files/A1200-pcbPRERELEASE.zip all signals are there. for anyone to test and verify if I have done right.. I will not start with my modded version. that version I actually WILL produce PCBs of. planning to order the pcbs like monday/tuesday..

18 July 2018, 22:54	#93
Kai Registered User Join Date: Apr 2011 Location: Brighton, UK Age: 41 Posts: 114	Possibility of replacing the QFP EC020 with the full fat 020 socket?

18 July 2018, 22:55	#94
Chucky Registered User Join Date: Mar 2015 Location: Karlstad / Sweden Age: 52 Posts: 1,210	not easy.. so.. no

18 July 2018, 23:11	#95
Kai Registered User Join Date: Apr 2011 Location: Brighton, UK Age: 41 Posts: 114	Thought that may have been the case, sorry, was having a dim moment!

19 July 2018, 08:10	#96
JLPedro JLPedro Join Date: Jun 2008 Location: Coimbra, Portugal Age: 47 Posts: 95	Thanks for the enormous work on this Is it possible to leave a jumper switch for booting from DF0 / DF1? Think it would be pretty simple and something worth.

19 July 2018, 12:35	#98
Chucky Registered User Join Date: Mar 2015 Location: Karlstad / Sweden Age: 52 Posts: 1,210	or a switchingpossability between df0/df1 ID numbers. so you can boot from external gotek on software that are hardcoded df0

19 July 2018, 16:23	#99
ajk Registered User Join Date: May 2010 Location: Helsinki, Finland Posts: 1,341	A hard drive and floppy terminator jumper would not be a bad idea either. Sometimes one or both are not installed and then there is a boot delay as everyone probably knows all too well

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