Page 1 of 5 12345 LastLast
Results 1 to 10 of 41

Thread: Akiko 32 - Amiga in miniITX format

  1. #1
    ElrondMcbong's Avatar
    Join Date
    Nov 2018
    Country
    Germany
    Region:
    Bavaria
    Age
    41
    Posts
    11
    Feedback
    1 (100%)

    Default Akiko 32 - Amiga in miniITX format

    Just want to show you my "little" project: a "new" Amiga in miniITX format

    As it is based on the Amiga CD32, it's name is Akiko 32.

    I started in December 2018 with first drafts and now I built the 3rd prototype and it's working really good now
    Matze helped me a lot with the CPLD code as this is my first project.
    The IDE/Fastram part is based on the TF328 made by Stephen Leary.

    Click image for larger version. 

Name:	akiko4.jpg 
Views:	529 
Size:	204.3 KB 
ID:	151876

    Specs:

    - miniITX size (170x170mm), pc case compatible
    - 68030 with 14MHz
    - AGA chipset where Lisa, Alice, Paula and the DAC are placed in THT sockets
    - Akiko Chip
    - 2MB Chipram
    - Experimental CD32/3.1.3 combined Kickstart
    - IDE controller (Gayle compatible)
    - 8MB Fastram
    - Clockport
    - "Custom-Chip" Florica
    - 20 pin ATX power connector
    - Connectors: Mouse, Joystick, Keyboard (A4000D style), Audio

    I decided to use only SMD parts in 0805 or 1206 size. I think, this size can be soldered by hand very well.
    Oh, and I don't like those resistor networks
    I replaced a few parts with newer ones, e.g. the resetgen and the OpAmp.

    A few imagaes:

    Click image for larger version. 

Name:	akiko11.jpg 
Views:	213 
Size:	115.6 KB 
ID:	151877Click image for larger version. 

Name:	akiko13.jpg 
Views:	238 
Size:	192.6 KB 
ID:	151878Click image for larger version. 

Name:	akiko14.jpg 
Views:	232 
Size:	169.5 KB 
ID:	151879Click image for larger version. 

Name:	akiko16.jpg 
Views:	183 
Size:	156.8 KB 
ID:	151880Click image for larger version. 

Name:	akiko18.jpg 
Views:	186 
Size:	162.7 KB 
ID:	151881Click image for larger version. 

Name:	akiko19.jpg 
Views:	199 
Size:	205.7 KB 
ID:	151882

    Some of the images have been made during development

    The current prototype has still some problems:

    - The power controller is not yet on the board as I decided to replace the NE555 switch with a power controller IC
    - Power LED is not dimmed for active audio filter or at reset
    - Pinout at the OpAmp is wrong
    - Mouse/Joystick have to directions wrong
    - Pinout for resetgen is wrong
    - In theory, there is a floppy port, but I'm thinking of drop it in favor of other things
    - Some traces have to be added from Florica to CPU
    - Two mouting holes are too big and need adjustment

    So, at the moment I'm working to get rid of all problems and try to remove all errors.
    My plan is to open-source the whole thing when it's finished.

    A case is also missing...

  2. #2
    fabbie54's Avatar
    Join Date
    Jan 2016
    Country
    Netherlands
    Region:
    Noord-Holland
    Age
    45
    Posts
    521
    Feedback
    40 (100%)
    Blog Entries
    1

    Default

    Great job! This looks amazing.

    Some suggestions:
    - keep the floppy port. Goteks and other FlashFloppy compatible devices are super useful.
    - consider bumping the amount of Fast RAM
    - consider faster 030s

    A 1200 expansion port would open a whole realm of possibilities.

    As for the case, get in touch with Stephen Jones to make sure it fits in his Checkmate 1500 case.

  3. #3
    BULI's Avatar
    Join Date
    Jun 2015
    Country
    Poland
    Region:
    Rzeszów
    Posts
    321
    Feedback
    21 (100%)

    Default

    Wow. Ideo instaling Akiko and kickstart CD32 is very interested.
    Could you write something about chipset Florica chipset?

  4. #4
    ElrondMcbong's Avatar
    Join Date
    Nov 2018
    Country
    Germany
    Region:
    Bavaria
    Age
    41
    Posts
    11
    Feedback
    1 (100%)

    Default

    The current version is more a proof-of-concept. 8MB fast and 14MHz is not, what I want as a final version
    The floppy port is planned, but not yet realised. The problem are the IO ports on the CPLD.

    An A1200 expansion port is not planned as this will never fit in any miniITX case. I want to keep that form factor even with more options on the board if possible.

    As the board is a normal miniITX size, it will fit inside the Checkmate 1500 case. I'm currently testing a small Chieftek case.

    The Florica chip is basically a CPLD with a better name: FLOppy, Ram, Ide, Clockport, Adapter

  5. #5
    CD32freak's Avatar
    Join Date
    Sep 2012
    Country
    The Netherlands
    Region:
    Flevoland
    Posts
    15
    Feedback
    2 (100%)

    Default

    Impressive work. What is screenshot 2 with the beautiful colors?
    Last edited by CD32freak; 6th December 2019 at 13:58.

  6. #6
    BANNED Sveta's Avatar
    Join Date
    Dec 2010
    Country
    Czech Republic
    Region:
    Ustecky kraj
    Posts
    6,592
    Feedback
    790 (100%)

    Default

    Hi,

    Great work.

    Regards, Sveta

  7. #7
    Mega AmiMod
    Staff Moderator
    keropi's Avatar
    Join Date
    Dec 2007
    Country
    Greece
    Region:
    Ioannina
    Age
    40
    Posts
    7,429
    Feedback
    159 (100%)

    Default

    amazing work indeed - keep us updated on progress!!!! this will make an awesome little machine once finished!
    Aacheron and slk486 are my heroes
    A1200D mfilos ed. : ACA 1231/42 , Indivision MK2 , IDEfix Express , Subway , PicoPSU 120w custom 3.9 ROM/OS

  8. #8
    Amibayer! Magic's Avatar
    Join Date
    Feb 2008
    Country
    Edmonds Washington USA
    Posts
    104
    Feedback
    8 (100%)

    Default

    Great Work! I have wanted one of these for over 20 years. Count me in if it ever goes further!

  9. #9
    Woz's Avatar
    Join Date
    Nov 2016
    Country
    UK
    Region:
    Carmarthenshire
    Age
    51
    Posts
    69
    Feedback
    9 (100%)

    Default

    Me too as I'd love to build one myself.

  10. #10
    Cassius1979's Avatar
    Join Date
    Jun 2013
    Country
    United Kingdom
    Region:
    Cheshire
    Posts
    90
    Feedback
    16 (100%)

    Default

    Yes, I have a broken board here ready to start moving components over

Page 1 of 5 12345 LastLast

Similar Threads

  1. Sold NEW NOS AKIKO chips 391563-01 for Amiga CD32
    By Sveta in forum Sales Archive
    Replies: 97
    Last Post: 12th February 2020, 18:23
  2. Sold AKIKO (391563-01) for Amiga CD32 NEW chips
    By tbtorro in forum Sales Archive
    Replies: 51
    Last Post: 29th September 2019, 15:09
  3. Wanted AKIKO chip P/N 391563-01
    By mpattonm in forum Amiga
    Replies: 0
    Last Post: 2nd October 2018, 20:42
  4. Replies: 14
    Last Post: 4th July 2017, 09:44
  5. Closed /Wanted - MiniITX Case for my uA1
    By fitzsteve in forum Found Archive
    Replies: 9
    Last Post: 7th August 2011, 13:38

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •