Re: 6510FPGA Suggestions?

Hi,

I have been investigated these cores too and found FPG64's 6510 code the 
closest implementation. I am currently playing experiments with it and one 
drawback is that it uses fast clock (33Mhz) and slows the CPU down with the 
enable signal. This however is needed in order not to violate the clock 
domain of the whole FPGA64 design. It can be driven with slower clock speed 
too but it is not a good concept to have different clock speeds in your 
FPGA.

http://www.syntiac.com/fpga64.html

Br
Istvan



-----Original Message----- 
From: silverdr@wfmh.org.pl
Sent: Saturday, August 24, 2013 12:41 AM
To: cbm-hackers@musoftware.de
Subject: 6510FPGA Suggestions?

Since for some time I am walking circles around the FPGA/CPLD bandwagon, I 
thought it might be time to have a closer look. I checked opencores and 
tried to decide where to spend some money (Altera, Atmel, Xilinx, ...?) that 
would be able to implement a 6502 and an I/O port together with some RAM and 
ROM modules. My n00b questions to the more experienced fellows:

- how many kgates can be needed for something like I mentioned above?
- what would be the best h/w platform/vendor and why?
- what is the most complete/reliable 6502 core to use as starting point?
- what can you suggest or warn about?

Cordially,

-- 
SD!
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