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Re: TF536 + 68000 relocator and ROM board project.

Posted: Tue Oct 06, 2020 9:01 am
by stephen_usher
Well, the boards have been manufactured and are on their way from China.

I've ordered all the parts I didn't have in stock to build at least a couple.

@PhilC would you like a few boards to play with when they arrive?

Re: TF536 + 68000 relocator and ROM board project.

Posted: Tue Oct 06, 2020 2:09 pm
by PhilC
@stephen_usher yes please, sounds like it'll be an interesting project to get involved with

Re: TF536 + 68000 relocator and ROM board project.

Posted: Tue Oct 06, 2020 5:43 pm
by stephen_usher
OK, if you PM me your address when they arrive I'll send you my spares.

Re: TF536 + 68000 relocator and ROM board project.

Posted: Tue Oct 06, 2020 6:10 pm
by PhilC
stephen_usher wrote:
Tue Oct 06, 2020 5:43 pm
OK, if you PM me your address when they arrive I'll send you my spares.
Will do, thank you.

Re: TF536 + 68000 relocator and ROM board project.

Posted: Tue Oct 06, 2020 7:43 pm
by stephen_usher
I've finally got around to trying to compile the CUPL file and found a syntax mistake. So, here's the corrected version.
(Unfortunately the forum won't allow me to attach the JED file.)

Code: Select all

Name     TOS 2.06 ROM decoder ;
PartNo   00 ;
Date     28/09/2020 ;
Revision 01 ;
Designer Engineer ;
Company  Personal ;
Assembly None ;
Location  ;
Device   g16v8 ;

/* *************** INPUT PINS *********************/
PIN  1   =  A18                       ; /*                                 */ 
PIN  2   =  A19                       ; /*                                 */ 
PIN  3   =  A20                       ; /*                                 */ 
PIN  4   =  A21                       ; /*                                 */ 
PIN  5   =  A22                       ; /*                                 */ 
PIN  6   =  A23                       ; /*                                 */ 
PIN  7   =  !ROM2                       ; /*                                 */ 
PIN  8   =  !AS                       ; /*                                 */ 
PIN  9   =  RW                       ; /*                                 */ 

/* *************** OUTPUT PINS *********************/
PIN  13   =  !ROE                       ; /*                                 */ 



SELECTED=RW & AS & !A18 & !A19 & !A20 & A21 & A22 & A23;

ROE=SELECTED # ROM2;


Re: TF536 + 68000 relocator and ROM board project.

Posted: Tue Oct 06, 2020 7:46 pm
by PhilC
@stephen_usher the forum is happy with zip files, so maybe add it to a zip and post it?

Re: TF536 + 68000 relocator and ROM board project.

Posted: Tue Oct 06, 2020 7:52 pm
by stephen_usher
PhilC wrote:
Tue Oct 06, 2020 7:46 pm
@stephen_usher the forum is happy with zip files, so maybe add it to a zip and post it?
OK.

Re: TF536 + 68000 relocator and ROM board project.

Posted: Wed Oct 07, 2020 5:58 pm
by stephen_usher
The last of the chips arrived today. Hopefully the sockets from Exxos will turn up tomorrow, then it's just waiting on the boards to arrive.

Apparently they're about to take off from Hong Kong and I've already had DHL asking if I'm VAT exempt. The official delivery estimate is Tuesday.

Once the sockets are here I can desolder the 68000 on the machine, fit the socket and test with the original CPU.

Re: TF536 + 68000 relocator and ROM board project.

Posted: Wed Oct 07, 2020 6:29 pm
by JezC
@stephen_usher Don't let @PhilC know you've been buying "his" 64 pin sockets...and they're nearly out of stock...

Sorry, was that the frantic clicking on the buy button I just heard? :lol: :roll:

Re: TF536 + 68000 relocator and ROM board project.

Posted: Wed Oct 07, 2020 6:30 pm
by PhilC
@JezC actually I'm running low, thanks for reminding me.