need your experience

EDAboard.com Forum Index -> PLD, SPLD, GAL, CPLD, FPGA Design -> need your experience

Author

Message

solvall

Joined: 05 Apr 2005
Posts: 27
Helped: 9

01 Mar 2006 3:55 need your experience

I ''m trying to use FPGA to run real-time 8051.
But my HDL code is not fully compliant with Intel 8501.
do you have 8051 HDL code that is fully compliant with intel 8051

Last edited by solvall on 02 May 2006 16:40; edited 1 time in total

nand_gates

Joined: 19 Jul 2004
Posts: 907
Helped: 120

01 Mar 2006 4:38 Re: FPGA based 8051

There is no point in implementing fully compatible 8051 in FPGA.
It is possble to do better 8051 than the original one in FPGA.
The mc8051 free IP-core by oregano is just as the original 8051 microcontroller
www.oregano.at
And people have implemented it on FPGA!

Google
AdSense
Google Adsense

01 Mar 2006 4:38 Ads

yego

Joined: 28 Oct 2004
Posts: 153
Helped: 14
Location: Middle of Nowhere

01 Mar 2006 15:00 Re: FPGA based 8051

nand-gates,
unfortunately I must correct you in one point. Oregano core v.1.4 is not cycle compatible to the original industry standard 12 cycles core.
It runs about 6 times faster.
I implemented it and checked it myself on the Spartan3 FPGA.
Fortunately this is the only thing which seems to be incompatible.
Regards, yego