68000 motorola - Page 3

gilgamesh · 19 February 2016, 09:31

Maybe they added the Z80 coprocessor's MIPS.

alex68 · 19 February 2016, 12:42

They add the Z80 and 68000?

eXeler0 · 19 February 2016, 13:41

Quote:

Originally Posted by alex68

They add the Z80 and 68000?

He means that maybe they added the 1.75MIPS from 68000 and 0.35 MIPS for the Z 80 to arrive at the conclusion that the total available computing power was 2.1MIPS. But this is speculation. We don't know where they got the 2.1 number...

alex68 · 19 February 2016, 18:55

Is there any type of machine to check the power without damaging the chips?

Megol · 19 February 2016, 19:15

Quote:

Originally Posted by alex68

Is there any type of machine to check the power without damaging the chips?

Yes. But why?

alex68 · 22 February 2016, 19:26

http://gaming.wikia.com/wiki/Instructions_per_second I found this on the web

eXeler0 · 22 February 2016, 20:41

Quote:

Originally Posted by alex68

http://gaming.wikia.com/wiki/Instructions_per_second I found this on the web

Interesting list, but I wouldn't trust it blindly... I mean..PS4 CPU is listed as being 256-bit 😆

alex68 · 22 February 2016, 22:48

GPU Neo Geo is 32 bits, although I think it is 16 bits, in order specified computer .. etc

Yulquen74 · 25 February 2016, 22:03

some 68HC000 fun:

http://s1314.photobucket.com/user/y_...tml?sort=3&o=0

52MHz, 0 waitstates, cpu barely warm.

alex68 · 27 February 2016, 02:21

68hc000 52 mhz possible??

meynaf · 27 February 2016, 10:37

Quote:

Originally Posted by alex68

68hc000 52 mhz possible??

Possible. But still a lot slower than 50mhz 68030 so i don't see the point.

Yulquen74 · 27 February 2016, 15:14

http://s1314.photobucket.com/user/y_...tml?sort=3&o=0

68HC000 @ 65,5 MHz & 1 waitstate. 55ns SRAM.
Just to break the 6 mips barrier

Waitstate are added because #DTACK from CPLD arrives too slow above a certain clock rate (not by choice).

alex68 · 27 February 2016, 18:15

At that frequency MHz 65,5 works or breaks?

Yulquen74 · 27 February 2016, 18:52

I've had it running at 65,5MHz the last 24 hours without any hickups. During idle time, its been busy running a script that creates a big lha archive in RAM, then checks it, deletes it and starts over again, wthout any errors so far. Have also tried applications, demos and some games. Of course I may encounter problems at a later stage.

If I go over 70,5 MHz, it freezes during or fails to boot.
At 70,5 MHz, it is able to boot and run programs (sysinfo reports 6.4 Mips), but I can only assume it will be unstable.

Perhaps some timing parameters could be adjusted, but I'm not going to pursue it
because I never intended to run it that fast anyway. The initial goal was 50 MHz for boards with 70ns SRAM.

alex68 · 27 February 2016, 19:24

I did not think it could reach as high frequency I do not even want to imagine what you can do with a 68060

eXeler0 · 27 February 2016, 22:51

Quote:

Originally Posted by Yulquen74

I've had it running at 65,5MHz the last 24 hours without any hickups. During idle time, its been busy running a script that creates a big lha archive in RAM, then checks it, deletes it and starts over again, wthout any errors so far. Have also tried applications, demos and some games. Of course I may encounter problems at a later stage.

If I go over 70,5 MHz, it freezes during or fails to boot.
At 70,5 MHz, it is able to boot and run programs (sysinfo reports 6.4 Mips), but I can only assume it will be unstable.

Perhaps some timing parameters could be adjusted, but I'm not going to pursue it
because I never intended to run it that fast anyway. The initial goal was 50 MHz for boards with 70ns SRAM.

Which 68HC000 model is it? (there's a bunch of versions)
And what board are using for it?
Could you post a screenshot of the hardware setup?

Yulquen74 · 28 February 2016, 00:01

Lame attempt at home built accelerator board, for use with A590 controller,
using MC68HC000FN20, ATF1508AS10 CPLD, 2 x R1WV6416RSA SRAM (+ 74LVC logic for 3,3V <-> 5V conversion) & 74HCT245 address and bus buffers towards mainboard.

http://s1314.photobucket.com/user/y_...tml?sort=3&o=0

eXeler0 · 28 February 2016, 08:50

Quote:

Originally Posted by Yulquen74

Lame attempt at home built accelerator board, for use with A590 controller,
using MC68HC000FN20, ATF1508AS10 CPLD, 2 x R1WV6416RSA SRAM (+ 74LVC logic for 3,3V <-> 5V conversion) & 74HCT245 address and bus buffers towards mainboard.

http://s1314.photobucket.com/user/y_...tml?sort=3&o=0

Haha Cool, I like it ☺

alex68 · 28 February 2016, 21:51

It is impressive that 70 mhz this cool

alex68 · 02 March 2016, 20:08

I could go higher than 70 mhz?

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19 February 2016, 09:31	#41
gilgamesh Linux snob Join Date: Sep 2008 Location: Monkey Island Posts: 997	Maybe they added the Z80 coprocessor's MIPS.

19 February 2016, 12:42	#42
alex68 Registered User Join Date: Jan 2016 Location: Belgium Posts: 82	They add the Z80 and 68000?

19 February 2016, 18:55	#44
alex68 Registered User Join Date: Jan 2016 Location: Belgium Posts: 82	Is there any type of machine to check the power without damaging the chips?

22 February 2016, 19:26	#46
alex68 Registered User Join Date: Jan 2016 Location: Belgium Posts: 82	http://gaming.wikia.com/wiki/Instructions_per_second I found this on the web

22 February 2016, 22:48	#48
alex68 Registered User Join Date: Jan 2016 Location: Belgium Posts: 82	GPU Neo Geo is 32 bits, although I think it is 16 bits, in order specified computer .. etc

25 February 2016, 22:03	#49
Yulquen74 Registered User Join Date: May 2013 Location: Kleppe / Norway Posts: 253	some 68HC000 fun: http://s1314.photobucket.com/user/y_...tml?sort=3&o=0 52MHz, 0 waitstates, cpu barely warm.

27 February 2016, 02:21	#50
alex68 Registered User Join Date: Jan 2016 Location: Belgium Posts: 82	68hc000 52 mhz possible??

27 February 2016, 15:14	#52
Yulquen74 Registered User Join Date: May 2013 Location: Kleppe / Norway Posts: 253	http://s1314.photobucket.com/user/y_...tml?sort=3&o=0 68HC000 @ 65,5 MHz & 1 waitstate. 55ns SRAM. Just to break the 6 mips barrier Waitstate are added because #DTACK from CPLD arrives too slow above a certain clock rate (not by choice).

27 February 2016, 18:15	#53
alex68 Registered User Join Date: Jan 2016 Location: Belgium Posts: 82	At that frequency MHz 65,5 works or breaks?

27 February 2016, 18:52	#54
Yulquen74 Registered User Join Date: May 2013 Location: Kleppe / Norway Posts: 253	I've had it running at 65,5MHz the last 24 hours without any hickups. During idle time, its been busy running a script that creates a big lha archive in RAM, then checks it, deletes it and starts over again, wthout any errors so far. Have also tried applications, demos and some games. Of course I may encounter problems at a later stage. If I go over 70,5 MHz, it freezes during or fails to boot. At 70,5 MHz, it is able to boot and run programs (sysinfo reports 6.4 Mips), but I can only assume it will be unstable. Perhaps some timing parameters could be adjusted, but I'm not going to pursue it because I never intended to run it that fast anyway. The initial goal was 50 MHz for boards with 70ns SRAM.

27 February 2016, 19:24	#55
alex68 Registered User Join Date: Jan 2016 Location: Belgium Posts: 82	I did not think it could reach as high frequency I do not even want to imagine what you can do with a 68060

28 February 2016, 00:01	#57
Yulquen74 Registered User Join Date: May 2013 Location: Kleppe / Norway Posts: 253	Lame attempt at home built accelerator board, for use with A590 controller, using MC68HC000FN20, ATF1508AS10 CPLD, 2 x R1WV6416RSA SRAM (+ 74LVC logic for 3,3V <-> 5V conversion) & 74HCT245 address and bus buffers towards mainboard. http://s1314.photobucket.com/user/y_...tml?sort=3&o=0

28 February 2016, 21:51	#59
alex68 Registered User Join Date: Jan 2016 Location: Belgium Posts: 82	It is impressive that 70 mhz this cool

02 March 2016, 20:08	#60
alex68 Registered User Join Date: Jan 2016 Location: Belgium Posts: 82	I could go higher than 70 mhz?

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