Re: [oc] 8051 VHDL models search

[sundar_ece@yahoo.com]

hello,
where can i download pci modules(like master/target 
read/write,parity,configuration,etc...) vhdl code .
do reply me to sundar_ece@yahoo.com id.
ur reply will be of great use.

regards,
sundar
----- Original Message ----- 
From: Jean Masson <Jean.Masson@l... > 
To: cores@o...  
Date: Sat, 24 Nov 2001 15:02:07 +0100 
Subject: Re: [oc] 8051 VHDL models search 

> 
> 
> Hello Alex, 
> 
> I beleeved that you had already found the sources in Hamburg WEB 
> site. Sorry ! 
> 
> I send you an attached zip with the sources of Mayer's 8051 VHDL 
> code. 
> This is a behavioural VHDL architecture, but it follows 8051's true 
> 12 cycles clock. Other models I 
> know don't. 
> After compiling package and removing a non synthetisable statement 
> FILE, the source compiles 
> without errors with Xilinx's dev pack. It remains only warnings for 
> non synthetisable constructs 
> like impure functions, etc. 
> This is a work of eliminating all simulation specific constructs. 
> 
> There is a possible problem with undefined instruction E5H wich 
> executes a NULL in Mayer's code. 
> For synthesis it is 
> necessary to do an incrementation of PC. So, I have mixed this 
> instruction with NOP in the main 
> CASE. With a genuine 
> 8051, this code executes also a carry set. Other MCS51 members 
> treat E5H as a NOP. I follow this 
> policy. 
> 
> We are working on a structural/data flow mix of architectures for 
> the 8051 core. This is a 
> student's project sheduled for 
> february 2002. I work on 8051's ALU implementation following ideas 
> found in the book of André 
> STAUFFER : 
> Systèmes numériques cablés et microprogrammés, Presses 
> Polytechniques Romandes (a Swiss book). 
> This is a good book. It exists perhaps in English. You may found 
> equivalent ones directly in 
> English (consult catalog of 
> Kluwer Academic Press, they edit excellent books on VHDL and logic 
> synthesis). 
> 
> Good work and best regards, 
> 
> Jean MASSON 
> 
> akfoo_uk@h...  a écrit : 
> 
> > Hi JM. 
> >        Do you still remember me? I have download those source 
> code 
> > according to your information provide. Thank for your help!! 
> :-) 
> >        Regarding your question, I think there are only those 
> open source 
> > code in internet. Those others are need to buy/pay for their 
> source 
> > code. If you are interesting on it, you may go and look as URL 
> shown 
> > below: 
> >        http://www.dcd.pl/english/ipcores.htm 
> >        http://www.design-reuse.com/EXCHANGER/cast_8051.shtml 
> > 
> >        Hope it will help for you there. :-) 
> > 
> >        Recently I been study the whole source code. Could you 
> send me 
> > the synthesizable VHDL comportemental model of Dr. Mayer to me 
> since 
> > it got to remove a lot of unsynthesizable VHDL code, and I'm 
> just a new 
> > on it? Thank a lot!! 
> > 
> > ----- Original Message ----- 
> > From: Jean Masson <Jean.Masson@l... > 
> > To: cores@o... 
> > Date: Thu, 11 Oct 2001 14:40:29 +0200 
> > Subject: [oc] 8051 VHDL models search 
> > 
> > > 
> > > 
> > > Hello, 
> > > 
> > > I search VHDL models (structural if possible) of the 8051 
> > > microcontroller 
> > > family. I have found an entry in your server on this 
> topic, but 
> > > with 
> > > nothing inside. 
> > > I have downloaded the files of Dalton Project (University 
> of 
> > > California) 
> > > and 
> > > the VHDL comportemental model of Dr. Mayer. Did you know 
> another 
> > > files ? 
> > > 
> > > This if for a students' project. 
> > > 
> > > Thank you for your help. 
> > > 
> > > Best regards. 
> > > 
> > > Dr. Jean MASSON 
> > > 
> > 
> 
> <P>zip00000.zip</P> 
> 
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