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View Full Version : In circuit emulator recommendations (Z80 & 6502) ?



zippysticks
February 23rd, 2018, 12:26 AM
Folks,

can anyone recommend a decent, affordable In Circuit Emulator rig for Z80 and 6502 based systems ?

Main use cases for me would be for debugging and development - not sure what other use cases would be !

Thanks

BloodyCactus
February 23rd, 2018, 06:17 AM
good ones like flukes are expensive, and fluke z80 pods are ludicrous prices.

You'll probably have to get separate ones for z80 + 6502. Sometimes for cheap you will find ZAX ICE machines. I have a Zax z80, but there are also the Nicolet Nice (and clones). they all do the same thing and are designed for the DIP z80's of yesteryear (you can get modern dip z80 at 20mhz... these old ICE wont tolerate that I dont believe, mine had some issues at least).

There is this, but I dont know how well it works (and the recommended board seems no longer available)

https://github.com/hoglet67/AtomBusMon/wiki

you can find plans for the clone nicolet nice on web
http://ferretronix.com/nice/

(I believe someone on ebay also sells the plans too)

Chuck(G)
February 23rd, 2018, 08:43 AM
Biomation also made some very nice ICE's.

zippysticks
February 23rd, 2018, 08:54 AM
Thanks for the reply.
Its funny, I came across the GODIL based solution in your first link earlier today. It looks pretty flexible and can be adapted to both my target processor types with software/jumpers. I have ordered the device and associated programmer - all for less than 100 so will see how I get on.

BloodyCactus
February 23rd, 2018, 09:58 AM
Thanks for the reply.
Its funny, I came across the GODIL based solution in your first link earlier today. It looks pretty flexible and can be adapted to both my target processor types with software/jumpers. I have ordered the device and associated programmer - all for less than 100 so will see how I get on.

ok. the wiki says to get model TE0261, which they dont sell at the store anymore. Which device model did you get?

Al Kossow
February 23rd, 2018, 10:04 AM
ok. the wiki says to get model TE0261, which they dont sell at the store anymore. Which device model did you get?

https://github.com/hoglet67/AtomBusMon/wiki/Purchasing-the-GODIL

suggests the larger models.

zippysticks
February 23rd, 2018, 10:14 AM
I went for the larger model OHO Elektronik GODIL50-XC3S500E

BloodyCactus
February 23rd, 2018, 11:29 AM
https://github.com/hoglet67/AtomBusMon/wiki/Purchasing-the-GODIL

suggests the larger models.

yes.. it suggests the 500 cell version of TE0261. The shop only sells TE0260 (500 cell) and TE0262 (250 and 500 cell) models. Not the 250 or 500 cell TE0261 model the wiki says to get.

The TE0260 is 4x25 contact points. the TE0262 is 2x50 female IDC. I believe the TE0261 is 2x40 male IDC, which can plug right into the DIP socket of z80/6502. The 0260/0262 are not directly pluggable into the dip socket to replace z80/6502.

zippysticks
February 23rd, 2018, 01:04 PM
Pretty sure the 40 pin DIL connection is made underneath - like this picture (although 48 in version shown)
43948

You can see the unit deployed in this post:

https://github.com/hoglet67/AtomBusMon/wiki/ICE-T65

smbaker
February 23rd, 2018, 05:33 PM
Can these things be used for an 8088? The web page mentions 8080.

dorkbert
February 23rd, 2018, 07:43 PM
Unlikely; 8086/8 is an order multitude more complex than 8080.

hoglet
February 25th, 2018, 07:46 AM
Hello there,

There's quite an active thread on stardot for the ICE-T family of In Circuit Emulators.

See this post onwards for a bit of discussion about the current hardware options:
http://stardot.org.uk/forums/viewtopic.php?p=175475#p175475

It's a shame that there are now supply issues with the OHO GODILs - specifically the ones that have the 40 pin DIL header on the bottom are no longer available.

The best OHO option currently available is the "bare module" and then solder on your own headers:
https://shop.trenz-electronic.de/en/TE0260-00B-GODIL-XC3S500E-DIL-FPGA-module-bare-module

An alternative setup is a generic Spartan 6 board:
https://www.ebay.com/itm/Xilinx-FPGA-Spartan-6-XC6SLX9-Core-Board/111640406811

Plus this as a level shifter:
http://www.xeropage.co.uk/shop/index.php?id_product=16&controller=product

I'm happy to answer any questions, either here or over on stardot. I'll try to keep an eye on this thread.


Dave

tingo
March 6th, 2018, 05:41 AM
Useful info about ICE-T options. Thanks!