Search found 1655 matches

by exxos
Sun Apr 15, 2018 12:35 pm
Forum: HARDWARE DISCUSSIONS
Topic: Suska board
Replies: 35
Views: 1220

Re: Suska board

With blitter enabled...

P1040174.JPG
P1040174.JPG (975.1 KiB) Viewed 394 times

Below is 16MHz CPU, ROM, and blitter on.
16CRB_result.png
16CRB_result.png (4.5 KiB) Viewed 393 times
by exxos
Sun Apr 15, 2018 12:12 pm
Forum: HARDWARE DISCUSSIONS
Topic: Suska board
Replies: 35
Views: 1220

Re: Suska board

Medium res benchmark.. P1040173.JPG Going by ROM its like a 16MHz machine. Other display tests look more like a 32MHz machine. Int-div looks somewhere around 25MHz machine. So I think the Suska CPU is running instructions faster than a real 68000. Not saying this is good or bad, depends what the end...
by exxos
Sun Apr 15, 2018 11:48 am
Forum: CHAT FORUM
Topic: Not like I wanted it anyway...
Replies: 7
Views: 505

Re: Not like I wanted it anyway...

Petari wrote:
Sat Apr 14, 2018 8:55 am
Cat is cat, so wants milk. I guess you need to put on table something scarier than those zombie magazines :mrgreen:
Maybe puppie :lol:
:lol: Well, if we give her own milk, she not drink any. Also dog not working, tried before , cat wins I think :lol:
by exxos
Sun Apr 15, 2018 11:45 am
Forum: 8 BIT CORNER
Topic: 2600 Composite mod
Replies: 13
Views: 763

Re: 2600 Composite mod

rubber_jonnie wrote:
Fri Apr 13, 2018 11:22 pm
You know me, I'm definitely up for that :)
:dualthumbup: Will send a pcb this week, will do a parts list for you as well soon.. There are a couple resistors of slightly "unknown" values due to untested changes.. So you may need a couple of presents to fine adjust them..
by exxos
Sun Apr 15, 2018 11:29 am
Forum: HARDWARE DISCUSSIONS
Topic: Suska board
Replies: 35
Views: 1220

Re: Suska board

I just got the benchmarks back from Wolfgang. Though I didn't mention to run in medium-res :roll: Results for mono won't compare to medium res even with a stock machine, so I have asked him to re-run the test in medium res. From what I can tell so far, the system runs around 16MHz, or very close to,...
by exxos
Sun Apr 15, 2018 10:04 am
Forum: HARDWARE DISCUSSIONS
Topic: Suska board
Replies: 35
Views: 1220

Re: Suska board

He said similar to me. He said the CPU runs at 16mhz and has a pseudo 8mhz mode, whatever that means.

So it seems the CPU has no fully compatible mode :(
by exxos
Sun Apr 15, 2018 9:47 am
Forum: CHAT FORUM
Topic: USB Audio Interface
Replies: 9
Views: 387

Re: USB Audio Interface

:goodpost: glad to see the real reason for ground issues posted. You know I tried to explain exactly that to people years ago and nobody understood it and most forum discussions never even considered the floating gnd with double insulated equipment, I actually blew the audio out on my falcon due to ...
by exxos
Sat Apr 14, 2018 5:25 pm
Forum: PSU (power supplies)
Topic: TT PSU problems
Replies: 3
Views: 248

Re: TT PSU problems

PSU of course needs to be tested under load of resistors. But I fear if its outputted 7.5V onto your machine then it could have killed it :(

I would check with scope and make sure you are not seeing peak voltages with your meter. May be bad soldering on output capacitors..
by exxos
Sat Apr 14, 2018 5:22 pm
Forum: HARDWARE DISCUSSIONS
Topic: Suska board
Replies: 35
Views: 1220

Re: Suska board

Nice! At least now we know :) I still think the Suska is probably the best base we have for replacing failing component and hard to find one. Yes indeed. Its open source so we can make changes. I still want to re-create the blitter with the suska code. If it goes ok then can start on the MMU and GL...
by exxos
Sat Apr 14, 2018 10:53 am
Forum: HARDWARE DISCUSSIONS
Topic: Suska board
Replies: 35
Views: 1220

Re: Suska board

A small update -

Wolfgang tried the demo.. and got this.. which is to be expected...

P1040170.JPG
P1040170.JPG (910.56 KiB) Viewed 275 times

He seems interested in adding wakestate support to Suska.. but could be a while.

Meanwhile, I have asked him to try GB6 to see what happens...