A1200 Replica PCB Progress - Page 8

Chucky · 12 August 2018, 14:22

Chipram was never the issue.. the issue was me being an idiot and forgot that damn resistor CBM patched 1D.4 PCBs with , you know the TH one close to alice

PR77 · 12 August 2018, 16:50

Quote:

Originally Posted by Chucky

Chipram was never the issue.. the issue was me being an idiot and forgot that damn resistor CBM patched 1D.4 PCBs with , you know the TH one close to alice

Yes I know that one! I was surprised by the patches in the A1200; still quicker than a silicon spin though.

When you start with adding the mods to the PCB layout will you consider clearance for PLCC sockets? Also, does the 68EC020 need to be soldered even if an accelerator is fitted? Thinking about reducing soldering directly to components and damn QFP packages.

Marlon_ · 12 August 2018, 16:52

Quote:

Originally Posted by PR77

Also, does the 68EC020 need to be soldered even if an accelerator is fitted?

You don't need to solder the 020 if you'll use an accelerator.

Chucky · 12 August 2018, 17:19

clearance for PLCC sockets. I think most can be done except for memory and btw sockets just introduce more issues anyway..

and you do not need the 020 if you will use a CPU card. that I can confirm.

PR77 · 12 August 2018, 18:14

Regarding the CPU good to know. I was thinking it wouldn’t work because of the BR and BG handshake but the external CPU (card) must have the smarts to handle it.

Chucky · 14 August 2018, 19:54

Status:

All audioissues solved
Distortion on video solved

tested:
Boot with and without turbocard.
Composite out delivers a way more clear picture
SVideo not tested due to the fact: I have no connector.. (damn)
df0: works.
df1: works (atleast gotek no mechanical drive athome)
serial, parallel, joystickports tests ok in diagrom.
pcmcia 3com network works fine.
pcmcia reset fix.. not tested. will do tomorrow
internal keyboard will test tomorrow
lyra adapter works.
15KHz video works.
RGB port works.

Simply put: DONE Working!..

ALSO! muy BPPC 50Mhz 060. 330MHz PPC, 128MB ram boots off a normal 4.5A PSU.. my original A1200 PCB refuses to do this.

So release sometime on sunday unless something weird happens.

Right now enjoying some 060 demos on it.. AHh!

Methanoid · 14 August 2018, 19:57

Incredible. Just incredible. I wonder if someone will make an ATX or mATX A1200 board

Sent from my Redmi Note 4 using Tapatalk

PR77 · 14 August 2018, 21:08

Quote:

Originally Posted by Chucky

Status:

All audioissues solved
Distortion on video solved

tested:
Boot with and without turbocard.
Composite out delivers a way more clear picture
SVideo not tested due to the fact: I have no connector.. (damn)
df0: works.
df1: works (atleast gotek no mechanical drive athome)
serial, parallel, joystickports tests ok in diagrom.
pcmcia 3com network works fine.
pcmcia reset fix.. not tested. will do tomorrow
internal keyboard will test tomorrow
lyra adapter works.
15KHz video works.
RGB port works.

Simply put: DONE Working!..

ALSO! muy BPPC 50Mhz 060. 330MHz PPC, 128MB ram boots off a normal 4.5A PSU.. my original A1200 PCB refuses to do this.

So release sometime on sunday unless something weird happens.

Right now enjoying some 060 demos on it.. AHh!

Holy crap! Well done! Could you share some pictures?

jotd · 14 August 2018, 21:35

All those people who'll be able to play a remade Rygar or a remade A1200 board... awesome work.

Chucky · 14 August 2018, 23:14

AJCopland · 15 August 2018, 13:00

Wow that is amazing work Chucky!

Marlon_ · 15 August 2018, 13:29

If someone does an atx version (when the files are released) that still works with mediator, that would be dope.

PR77 · 15 August 2018, 15:37

@Chucky, on my 68SEC000 accelerator Rev 4 PCB I will (haven't started the layout yet) route Pin 20 of the IDE connector to +5V to support DOMs via a jumper. Will you do something similar? Then a simple IDE44 to 40 can be used and no expensive DOM Power Cable (here is DE I can get a 128MB DOM for 0.95€ cents).

AJCopland · 15 August 2018, 16:14

PR77 is that why DOM's don't work out of the box!?! I didn't know that! I have two of them (4GiB) lying around that I could use if I'd known that.

PR77 · 15 August 2018, 17:58

Quote:

Originally Posted by AJCopland

PR77 is that why DOM's don't work out of the box!?! I didn't know that! I have two of them (4GiB) lying around that I could use if I'd known that.

Without the external power cable, correct. It simply will not power.

Chucky · 15 August 2018, 23:20

30 pcs of the PCB is ordered..

So release on sunday. if not. I have just ordered 30 useless PCBs.. (meaning I found something REALLY serious wrong.. what that now could be)

release means I will release the sprint file, gerbers and a PARTIAL BOM.

also sprintfile and gerbers for the A1200 clone without any kind of modifications. even if my ReAmiga is designed from this. I have not tested it IRL so anyone ordering a PCB from that is on your own.

graffias79 · 15 August 2018, 23:23

I have a possibly not functional 1D.1 board. Would the chips from this board revision work on this if it came to needing to be completely replaced?

This is theoretical, I do not have the skills or equipment to transfer chips and solder smd components to a new board.

Chucky · 15 August 2018, 23:25

yes! will work fine.. any A1200 revision will work..

it is based on the 1D.4 but I have fixed all what I know is fixed in rev2. wiiiith some slight "optional" jumperpossabilities..

graffias79 · 15 August 2018, 23:30

Glad to know this is an option now! I'll have to have someone see if the board is fixable or not. It desperately needs a recap and may already be too far gone. Floppy connector doesn't seem to work, IDE header missing a pin.

Chucky · 18 August 2018, 18:15

Unfortuinally there will be no ReAmiga release on sunday.. as I need to work.

BUT! that means it will be TODAY!!! So TEASER:

[ Show youtube player ]

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12 August 2018, 14:22	#141
Chucky Registered User Join Date: Mar 2015 Location: Karlstad / Sweden Age: 52 Posts: 1,210	Chipram was never the issue.. the issue was me being an idiot and forgot that damn resistor CBM patched 1D.4 PCBs with , you know the TH one close to alice

12 August 2018, 17:19	#144
Chucky Registered User Join Date: Mar 2015 Location: Karlstad / Sweden Age: 52 Posts: 1,210	clearance for PLCC sockets. I think most can be done except for memory and btw sockets just introduce more issues anyway.. and you do not need the 020 if you will use a CPU card. that I can confirm.

12 August 2018, 18:14	#145
PR77 Registered User Join Date: Oct 2017 Location: Germany Posts: 193	Regarding the CPU good to know. I was thinking it wouldn’t work because of the BR and BG handshake but the external CPU (card) must have the smarts to handle it.

14 August 2018, 19:54	#146
Chucky Registered User Join Date: Mar 2015 Location: Karlstad / Sweden Age: 52 Posts: 1,210	Status: All audioissues solved Distortion on video solved tested: Boot with and without turbocard. Composite out delivers a way more clear picture SVideo not tested due to the fact: I have no connector.. (damn) df0: works. df1: works (atleast gotek no mechanical drive athome) serial, parallel, joystickports tests ok in diagrom. pcmcia 3com network works fine. pcmcia reset fix.. not tested. will do tomorrow internal keyboard will test tomorrow lyra adapter works. 15KHz video works. RGB port works. Simply put: DONE Working!.. ALSO! muy BPPC 50Mhz 060. 330MHz PPC, 128MB ram boots off a normal 4.5A PSU.. my original A1200 PCB refuses to do this. So release sometime on sunday unless something weird happens. Right now enjoying some 060 demos on it.. AHh!

14 August 2018, 19:57	#147
Methanoid Retired Quartex Sysop Join Date: Sep 2001 Location: Roman Verulamium Age: 58 Posts: 1,873	Incredible. Just incredible. I wonder if someone will make an ATX or mATX A1200 board Sent from my Redmi Note 4 using Tapatalk

14 August 2018, 21:35	#149
jotd This cat is no more Join Date: Dec 2004 Location: FRANCE Age: 52 Posts: 8,228	All those people who'll be able to play a remade Rygar or a remade A1200 board... awesome work.

14 August 2018, 23:14	#150
Chucky Registered User Join Date: Mar 2015 Location: Karlstad / Sweden Age: 52 Posts: 1,210

15 August 2018, 13:00	#151
AJCopland Registered User Join Date: Sep 2013 Location: Beeston, Nottinghamshire, UK Posts: 238	Wow that is amazing work Chucky!

15 August 2018, 13:29	#152
Marlon_ AmigaDev.com Join Date: Mar 2016 Location: Stockholm, Sweden Age: 35 Posts: 625	If someone does an atx version (when the files are released) that still works with mediator, that would be dope.

15 August 2018, 15:37	#153
PR77 Registered User Join Date: Oct 2017 Location: Germany Posts: 193	@Chucky, on my 68SEC000 accelerator Rev 4 PCB I will (haven't started the layout yet) route Pin 20 of the IDE connector to +5V to support DOMs via a jumper. Will you do something similar? Then a simple IDE44 to 40 can be used and no expensive DOM Power Cable (here is DE I can get a 128MB DOM for 0.95€ cents).

15 August 2018, 16:14	#154
AJCopland Registered User Join Date: Sep 2013 Location: Beeston, Nottinghamshire, UK Posts: 238	PR77 is that why DOM's don't work out of the box!?! I didn't know that! I have two of them (4GiB) lying around that I could use if I'd known that.

15 August 2018, 23:20	#156
Chucky Registered User Join Date: Mar 2015 Location: Karlstad / Sweden Age: 52 Posts: 1,210	30 pcs of the PCB is ordered.. So release on sunday. if not. I have just ordered 30 useless PCBs.. (meaning I found something REALLY serious wrong.. what that now could be) release means I will release the sprint file, gerbers and a PARTIAL BOM. also sprintfile and gerbers for the A1200 clone without any kind of modifications. even if my ReAmiga is designed from this. I have not tested it IRL so anyone ordering a PCB from that is on your own.

15 August 2018, 23:23	#157
graffias79 Registered User Join Date: Jul 2018 Location: Madison, WI, USA Posts: 69	I have a possibly not functional 1D.1 board. Would the chips from this board revision work on this if it came to needing to be completely replaced? This is theoretical, I do not have the skills or equipment to transfer chips and solder smd components to a new board.

15 August 2018, 23:25	#158
Chucky Registered User Join Date: Mar 2015 Location: Karlstad / Sweden Age: 52 Posts: 1,210	yes! will work fine.. any A1200 revision will work.. it is based on the 1D.4 but I have fixed all what I know is fixed in rev2. wiiiith some slight "optional" jumperpossabilities..

15 August 2018, 23:30	#159
graffias79 Registered User Join Date: Jul 2018 Location: Madison, WI, USA Posts: 69	Glad to know this is an option now! I'll have to have someone see if the board is fixable or not. It desperately needs a recap and may already be too far gone. Floppy connector doesn't seem to work, IDE header missing a pin.

18 August 2018, 18:15	#160
Chucky Registered User Join Date: Mar 2015 Location: Karlstad / Sweden Age: 52 Posts: 1,210	Unfortuinally there will be no ReAmiga release on sunday.. as I need to work. BUT! that means it will be TODAY!!! So TEASER: [ Show youtube player ]

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