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Re: STE V1.5 32MHz BOOSTER - STATUS

Posted: Thu Aug 02, 2018 9:53 am
by rubber_jonnie
exxos wrote: Thu Aug 02, 2018 8:51 am If you run the new booster do all tests, then load the STE20632 file, then you should see the speed difference between 32MHz and 40MHz.
Will do so as soon as I can.

Re: STE V1.5 32MHz BOOSTER - STATUS

Posted: Thu Aug 02, 2018 7:36 pm
by exxos
Seems HD10.01 doesn't like booting in 40MHz mode for some odd reason :shrug:

Re: STE V1.5 32MHz BOOSTER - STATUS

Posted: Fri Aug 03, 2018 10:37 pm
by PhilC
Ok, so one 3.3v oscillator replaced with a 5v one and back in business, thanks Chris.

To celebrate, here are a couple of benchmarks.

Below is the 40mhz vs 8mhz STE
20180803_222939_resized.jpg
20180803_222939_resized.jpg (443.56 KiB) Viewed 4245 times
And below this is 40mhz vs 32mhz
20180803_222608_resized.jpg
20180803_222608_resized.jpg (445.31 KiB) Viewed 4245 times

Re: STE V1.5 32MHz BOOSTER - STATUS

Posted: Fri Aug 03, 2018 10:44 pm
by exxos
Forgottenmyname wrote: Fri Aug 03, 2018 10:37 pm And below this is 40mhz vs 32mhz
hmmm, something not right with that... 32MHz has 309% ROM access, 368% 40MHz - 309% = 59% (yours whos 19% increase).

Similar with first test, 181% 32MHz, 203% 40MHz - 181% = 22% (your shows 12% increase)...

Re: STE V1.5 32MHz BOOSTER - STATUS

Posted: Fri Aug 03, 2018 10:49 pm
by PhilC
Could it be the different GB that I was using? If you look at the percentages for the 40mhz, they are the same more or less to RJ's but the average is very different.

Of course it's not impossible I loaded the wrong comparison? what was the file name?

Re: STE V1.5 32MHz BOOSTER - STATUS

Posted: Fri Aug 03, 2018 10:55 pm
by exxos
Forgottenmyname wrote: Fri Aug 03, 2018 10:49 pm Could it be the different GB that I was using? If you look at the percentages for the 40mhz, they are the same more or less to RJ's but the average is very different.

Of course it's not impossible I loaded the wrong comparison? what was the file name?
STE20632... but maybe file isn't correct anymore :shrug:

Will have to see what Jonnie comes back with.. he has bother boosters working currently..

Re: STE V1.5 32MHz BOOSTER - STATUS

Posted: Fri Aug 03, 2018 10:57 pm
by PhilC
Fair enough, will wait with interest :D

Re: STE V1.5 32MHz BOOSTER - STATUS

Posted: Mon Aug 06, 2018 11:39 am
by exxos
Jumping back to Franks' bob test program going funny https://www.exxosforum.co.uk/forum/viewt ... =190#p7843

I got a email back from Frank..

I’m not blit waiting plane to plane. I’m assuming the blitter will hog the bus and lock out the CPU while it is active. It's a bit nasty and it is relying on timing of the CPU/blitter.

So one of those "timing dependent" things (like raster etc) it seems. So all is well again :)

I am going to try and start building up some boards today...

Re: STE V1.5 32MHz BOOSTER - STATUS

Posted: Mon Aug 06, 2018 4:37 pm
by exxos
Made a start on a batch of 15...

People with OCD should not look at this image :twisted:

red15.jpg
red15.jpg (313.7 KiB) Viewed 4978 times

Re: STE V1.5 32MHz BOOSTER - STATUS

Posted: Mon Aug 06, 2018 4:44 pm
by rubber_jonnie
exxos wrote: Mon Aug 06, 2018 4:37 pm
People with OCD should not look at this image :twisted:
You really should try harder to align all of the edges of the boards :dizzy: