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STE 32MHz PLUG IN BOOSTER (again) 2021 variation
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HigashiJun
- Posts: 2416
- Joined: Fri Jun 19, 2020 7:21 am
- Location: Tokyo
Re: STE 32MHz PLUG IN BOOSTER (again) 2021 variation
You have only two grounds on the CPU (pins 16 & 17)...
Re: STE 32MHz PLUG IN BOOSTER (again) 2021 variation
Only VCC and GNDphilbo34 wrote: Fri Feb 12, 2021 1:19 pm Prob a daft question but should each header pin not have connection to the next or are there grounds next to each other. I fear not. Time to resolder I fear
- Capture.PNG (60.49 KiB) Viewed 4560 times
Re: STE 32MHz PLUG IN BOOSTER (again) 2021 variation
Cheers that halved it
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HigashiJun
- Posts: 2416
- Joined: Fri Jun 19, 2020 7:21 am
- Location: Tokyo
Re: STE 32MHz PLUG IN BOOSTER (again) 2021 variation
Oops...
Forgot pins 56 & 57...
My bad !
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HigashiJun
- Posts: 2416
- Joined: Fri Jun 19, 2020 7:21 am
- Location: Tokyo
Re: STE 32MHz PLUG IN BOOSTER (again) 2021 variation
Ok, so Exxos' new plug-in beta booster now sits in the CPU socket:
And guess what ?
My STE boots flawlessly and even from Ultrasatan:
As for now, I did not revert to originals SILs and still have the 2.2 K ones soldered in.
No need either to use the 22uf capacitor in case the machine refuses to boot.
I will try to check if the floppy works.
Just funny to see that Sysinfo reports the CPU speed as 10 Mhz...
- Booster.jpeg (334.05 KiB) Viewed 4525 times
And guess what ?
My STE boots flawlessly and even from Ultrasatan:
- STE.jpeg (440.74 KiB) Viewed 4525 times
As for now, I did not revert to originals SILs and still have the 2.2 K ones soldered in.
No need either to use the 22uf capacitor in case the machine refuses to boot.
I will try to check if the floppy works.
Just funny to see that Sysinfo reports the CPU speed as 10 Mhz...
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HigashiJun
- Posts: 2416
- Joined: Fri Jun 19, 2020 7:21 am
- Location: Tokyo
Re: STE 32MHz PLUG IN BOOSTER (again) 2021 variation
Thanks !
This one was a lot easier than my previous booster attempt...
Re: STE 32MHz PLUG IN BOOSTER (again) 2021 variation
You should remove the MB ones as you will have 1.1K pullups in total , I found that can cause DMA issues on some machines.HigashiJun wrote: Sat Feb 13, 2021 10:30 am As for now, I did not revert to originals SILs and still have the 2.2 K ones soldered in.
You still need it, or recap the reset circuit...HigashiJun wrote: Sat Feb 13, 2021 10:30 am No need either to use the 22uf capacitor in case the machine refuses to boot.
Not surprised, effective speed, like 20% I guess overall. But ROM will work at much higher speeds, so desktop and apps will fly!HigashiJun wrote: Sat Feb 13, 2021 10:30 am Just funny to see that Sysinfo reports the CPU speed as 10 Mhz...
Re: STE 32MHz PLUG IN BOOSTER (again) 2021 variation
Sysinfo don't display correct CPU speed. I don't know how it calculated it. It always seems off if you have an accelerator running.HigashiJun wrote: Sat Feb 13, 2021 10:30 am...Just funny to see that Sysinfo reports the CPU speed as 10 Mhz...
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HigashiJun
- Posts: 2416
- Joined: Fri Jun 19, 2020 7:21 am
- Location: Tokyo
Re: STE 32MHz PLUG IN BOOSTER (again) 2021 variation
And, to conclude this day of hard labour:
This old good floppy also works...
I will have to try some transfers between FDD and Ultrasatan to check if everything is alright and if there is no any data corruption, then launch Gembench...
But it will be for another day.
Stay tuned.
- FDD.jpeg (355.95 KiB) Viewed 4511 times
This old good floppy also works...
I will have to try some transfers between FDD and Ultrasatan to check if everything is alright and if there is no any data corruption, then launch Gembench...
But it will be for another day.
Stay tuned.