exxos's Atari, Amiga & retro forum

The REV H5C1 is assembled as shown in the image below. There are some parts which still need fitting but nothing much overall needed to get it up and running.

Most parts listed should be available in the store or from a donor machine.

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ESSENTIAL (excluding main chips)
-----------------------------------------------------

A two pin jumper for the ROM select on the left of the board.
https://www.exxosforum.co.uk/atari/store2/#0158

JUMPER LINKS
https://www.exxosforum.co.uk/atari/store2/#0188

13 PIN DIN VIDEO CONNECTOR
https://www.exxosforum.co.uk/atari/store2/#0157

The 32MHz osc.
https://www.exxosforum.co.uk/atari/store2/#0006

72pin simm socket.
https://www.exxosforum.co.uk/atari/store2/#0056

RESET SWITCH
https://www.exxosforum.co.uk/atari/store2/#0114

FLOPPY POWER LEAD
https://www.exxosforum.co.uk/atari/store2/#0211

ROM
https://www.exxosforum.co.uk/atari/store2/#0054 (of course select correct language!)

FLOPPY RIBBON CABLE
Your parts bin or the "usual outlets" .

4MB 72 PIN SIMM
Your parts bin or the "usual outlets" .


-----------------------------------------------------
CONNECTORS
-----------------------------------------------------

DB25 MALE (RS232)
https://www.exxosforum.co.uk/atari/store2/#0134

DB25 FEMALE (PRINTER)

14 PIN DIN EXTERNAL FLOPPY CONNECTOR
https://www.exxosforum.co.uk/atari/store2/#0100

CARTRIDGE PORT
https://www.exxosforum.co.uk/atari/store2/#0203

DMA PORT DB19
https://www.exxosforum.co.uk/atari/store2/#0084

68K SOCKETS ( if you plan to use addons )
https://www.exxosforum.co.uk/atari/store2/#0038


-----------------------------------------------------
CHIPS
-----------------------------------------------------

68HC000 CPU
https://www.exxosforum.co.uk/atari/store2/#0092

ACIA x2
https://www.exxosforum.co.uk/atari/store2/#0105

WD1772 FLOPPY IC
https://www.exxosforum.co.uk/atari/store2/#0087

MMU
https://www.exxosforum.co.uk/atari/store2/#0075
https://www.exxosforum.co.uk/atari/store2/#0080

GLUE
https://www.exxosforum.co.uk/atari/store2/#0005
https://www.exxosforum.co.uk/atari/store2/#0081

SHIFTER
https://www.exxosforum.co.uk/atari/store2/#0102

DMA
https://www.exxosforum.co.uk/atari/store2/#0004
https://www.exxosforum.co.uk/atari/store2/#0164

YM2147 AY8910 SOUND IC
https://www.exxosforum.co.uk/atari/store2/#0103

MFP PLCC
https://www.exxosforum.co.uk/atari/store2/#0148

BLITTER - (Yeah right! :lol: )
https://www.exxosforum.co.uk/atari/store2/#0002


-----------------------------------------------------
RECOMMENDED & AVAILABLE ADDONS
-----------------------------------------------------

TOS206 DECODER
https://www.exxosforum.co.uk/atari/store2/#0172

TRUDIE IDE INTERFACE
https://www.exxosforum.co.uk/atari/store2/#0206


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OTHER OPTIONAL STUFF
-----------------------------------------------------

32.768 OSC RTC
https://uk.farnell.com/citizen-finedevi ... 7-00001003

1220 BATTERY HOLDER
https://www.mouser.co.uk/c/power/batter ... lectronics

RTC CHIP DS1315
https://www.mouser.co.uk/c/semiconducto ... V&active=y

1.44 FLOPPY MOD GAL
https://www.exxosforum.co.uk/atari/store2/#0227

Of course the chips themselves are not supplied.

There might be other items I have currently missed. If anyone spots anything than let me know and I will update the list above.

Pardon the relative newbness of the question, I have followed the project with great interest, but perhaps not to the greatest detail.

I'm planning to populate my freshly ordered H5C1 with salvages from a broken-motherboard 1040STF (no blitter).
While looking at the BOM, I noticed the ROM link leads to the TOS 162/206, the STE dual-ROM.

Is this as intended, or are the TOS 104/206 ROMs more suitable?

I realize that in either case, the TOS decoder board might be necessary to fully utilize 206 ROMs.

@StealthGunner385 the Tos1.04/2.06 would be a better choice and as you say, you'll need a decoder board for 2.06 to work :)

@PhilC thanks for confirming what my gut had told me. Considering the donor board's original ICs, looks like it's time to get a new CPU, MFP, DualTOS and Decoder.

@StealthGunner385 ST chipset only supports TOS104,TOS102 DUALTOS, but I don't suggest them as I am actually discontinuing that combination. It's why I am suggesting the TOS104, TOS206 ROMs. Then at least if you decide to use the decoder board, you already have TOS206 ROM ready for it.

Assuming an STF donor.

And it is working.

What parts do I need outside the donor. I know there are some header pins. The 72pin socket for ram would be a must?

What else can I NOT get from the donor?

James

Does this seem right?? any input is appreciated.

A two pin jumper for the ROM select on the left of the board.- could be local sourced

JUMPER LINKS
https://www.exxosforum.co.uk/atari/store2/#0188 - could be local sourced.

13 PIN DIN VIDEO CONNECTOR
https://www.exxosforum.co.uk/atari/store2/#0157 - donor board

The 32MHz osc.
https://www.exxosforum.co.uk/atari/store2/#0006 - donor board??

72pin simm socket.
https://www.exxosforum.co.uk/atari/store2/#0056 - exxos store - easiest source?

RESET SWITCH
https://www.exxosforum.co.uk/atari/store2/#0114 - donor board for 1 - does the board need 2?

FLOPPY POWER LEAD
https://www.exxosforum.co.uk/atari/store2/#0211 - scraps local or exxos store

ROM
https://www.exxosforum.co.uk/atari/store2/#0140 - must be sourced from exxos store

FLOPPY RIBBON CABLE
Your parts bin or the "usual outlets" . - local

4MB 72 PIN SIMM
Your parts bin or the "usual outlets" . - local

DB25 MALE (RS232)
https://www.exxosforum.co.uk/atari/store2/#0134 - donor board

DB25 FEMALE (PRINTER) - donor board

14 PIN DIN EXTERNAL FLOPPY CONNECTOR - donor board
https://www.exxosforum.co.uk/atari/store2/#0100

CARTRIDGE PORT
https://www.exxosforum.co.uk/atari/store2/#0203 - donor board

DMA PORT DB19
https://www.exxosforum.co.uk/atari/store2/#0084 - donor board

68K SOCKETS ( if you plan to use addons )
https://www.exxosforum.co.uk/atari/store2/#0038 - local

68HC000 CPU
https://www.exxosforum.co.uk/atari/store2/#0092 - ahhh exxos store, not a 68pin dil.. got it! ;) (edited)

ACIA x2
https://www.exxosforum.co.uk/atari/store2/#0105 - donor board

WD1772 FLOPPY IC
https://www.exxosforum.co.uk/atari/store2/#0087 - check the chip.. but if not 1772 then should change I assume

MMU
https://www.exxosforum.co.uk/atari/store2/#0075 - donor board
https://www.exxosforum.co.uk/atari/store2/#0080

GLUE
https://www.exxosforum.co.uk/atari/store2/#0005 - donor board
https://www.exxosforum.co.uk/atari/store2/#0081

SHIFTER
https://www.exxosforum.co.uk/atari/store2/#0102 - donor board

DMA
https://www.exxosforum.co.uk/atari/store2/#0004 - donor board (does stfm need to check for bad dma?)
https://www.exxosforum.co.uk/atari/store2/#0164

YM2147 AY8910 SOUND IC
https://www.exxosforum.co.uk/atari/store2/#0103 - donor board

MFP PLCC
https://www.exxosforum.co.uk/atari/store2/#0148 - PLCC not on STF so exxos store.

BLITTER - (Yeah right! :lol: )
https://www.exxosforum.co.uk/atari/store2/#0002 - STFM - no blitter.

TOS206 DECODER
https://www.exxosforum.co.uk/atari/store2/#0172 - exxos store

TRUDIE IDE INTERFACE
https://www.exxosforum.co.uk/atari/store2/#0206 - exxos store

You don't need two reset switches and you can use 68k processor in DIL package if you want to. You just have to solder in a socket for it.

The MFP is DIL on most Ataris (all?) and not PLCC as on H5c1 so nothing you can find on a donor board.

The ESSENTIAL list is what you need from my store.

while you can reuse your old CPU, I really would not bother and just get one of the 68HC000 CPU's from my store.

Whats required now to implement the S2 Midi Synth? do we still need the amp board or is it good to go?