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Discussing the Open Source FPGA Amiga Project
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 Post subject: Re: Macintosh Plus
PostPosted: Sun Jun 19, 2011 10:01 pm 
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Joined: Wed Sep 22, 2010 7:44 am
Posts: 12
It's verilog not vhdl :-)

Don't try to synthesis with the sim_* files, as the README mention, they are there only for simulation in iverilog,
just start from minimigmac.v as your toplevel and add the missing bits the parser requires

You also need only clocks_fpga.v, ignore clocks_fpga_dll.v for now

There should be pre-built binaries of the fpga and the PIC in the 0.1 archive I've posted in the builds directory.

As for rebuilding the .hex if you don't like the binary, it's meant to build with "sdcc" which is available under Linux
and most probably other platforms (Google....). There's a quick & dirty Makefile in there.

Cheers,
Ben.


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 Post subject: Re: Macintosh Plus
PostPosted: Sun Jun 19, 2011 11:35 pm 
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Joined: Wed Sep 22, 2010 7:44 am
Posts: 12
I've pushed to the git repo an ISE 12.3 project file, you should be able to import that in 12.4


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 Post subject: Re: Macintosh Plus
PostPosted: Mon Jun 20, 2011 6:29 pm 
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Joined: Mon Dec 01, 2008 9:58 pm
Posts: 1568
Location: .de
I will try again later...
ps: this sim_pic.v file is VHDL based, but good to know its unneeded and I did not read the readme at first attempt.
Thanks for the info :)

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JMP $00000BED ; will guru-meditation until next morning


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 Post subject: Re: Macintosh Plus
PostPosted: Mon Jun 20, 2011 9:38 pm 
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Joined: Wed Sep 22, 2010 7:44 am
Posts: 12
sim_pic.v is really verilog like all the rest :-)


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 Post subject: Re: Macintosh Plus
PostPosted: Thu Jul 14, 2011 11:34 am 
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Joined: Mon Dec 01, 2008 6:41 pm
Posts: 166
@benh
Thanks for sharing your hard work.

I will look forward to giving it a try on my 2MB Minimig with PIC when 1MB Mac Plus simulation is supported, as back in the day when I had an 8bit home computer I always wanted a Mac before discovering the Amiga :-)

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2MB Minimig with PIC
4MB Minimig with ARM Addon board


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 Post subject: Re: Macintosh Plus
PostPosted: Wed Nov 09, 2011 11:30 am 
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Joined: Thu Jun 18, 2009 9:54 am
Posts: 349
Did this project get further development?
Sound support would be awesome for example :D


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 Post subject: Re: Macintosh Plus
PostPosted: Fri Dec 16, 2011 5:29 pm 
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Joined: Mon Dec 01, 2008 9:58 pm
Posts: 1568
Location: .de
benh wrote:

I gave this another try. This time with PIC flashed and renamed pre-build FPGA core file (the name in archive differ, it must be MIMIGMAC.BIN as to find in main.c sources file).

After FPGA is loaded, I only get a fast flashing Power-LED and a grey pixel-trash picture with black border.
PIC and Mac seems unable to upload the Mac ROM image file. It is present on sd-card root and named "MIMIGMAC.ROM".
I took the same file as for a working PocketPC emulator (Mini vMacPlus): File size 131072 byte (128Kb).

PIC serial dump:
Code:
Initializing MMC...

Initializing FAT...

Configuring FPGA...

********************************
********************************
********************************
********************************
********************************
********************************
********************************
********************************
********************************
********************************
********************************
********************************
*******************************


What is missing to upload ROM image?

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JMP $00000BED ; will guru-meditation until next morning


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