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oneTesla - a small single-board DRSSTC

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Dr. ISOTOP
Mon Jan 07 2013, 02:04AM
Dr. ISOTOP Registered Member #2919 Joined: Fri Jun 11 2010, 06:30PM
Location: Cambridge, MA
Posts: 652
Try flashing the latest interrupter firmware, found here. The old code had some unfortunate issues with note handling.
The manual and schematics are here
If you're flashing your own ATMega, you need to set the fuses properly; CKDIV8 needs to be off, and SUT_CKSEL should be EXTFSXTAL_16KCK_14CK_4MS1
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E.TexasTesla
Mon Jan 07 2013, 03:06AM
E.TexasTesla Registered Member #4362 Joined: Sat Jan 21 2012, 03:44AM
Location: Texas
Posts: 98
Tried new code still no luck.
Im using my atmega328p from from my uno board.
Can I change the fuse settings with uno or do I need to buy a new chip and use an ISP-Programmer ?
When you reopen your store website mabe I could buy a preprogrammed chip.
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Dr. ISOTOP
Mon Jan 07 2013, 05:27AM
Dr. ISOTOP Registered Member #2919 Joined: Fri Jun 11 2010, 06:30PM
Location: Cambridge, MA
Posts: 652
E.TexasTesla wrote ...

Tried new code still no luck.
Im using my atmega328p from from my uno board.
Can I change the fuse settings with uno or do I need to buy a new chip and use an ISP-Programmer ?
When you reopen your store website mabe I could buy a preprogrammed chip.


I'll send you a preprogrammed ATMega.
I would advise getting a USB to MIDI adapter off Ebay for ~$5; these are known to work with the code. And if it works with the adapter and not your keyboard, then please do inform me so I can figure out what the bug is.
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E.TexasTesla
Tue Feb 12 2013, 03:52AM
E.TexasTesla Registered Member #4362 Joined: Sat Jan 21 2012, 03:44AM
Location: Texas
Posts: 98
Quick question, Whats the max on time for the one tesla board.

Still interested in one of your midi chips if you offer is still good.

Thanks.
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Dr. ISOTOP
Tue Feb 12 2013, 08:31PM
Dr. ISOTOP Registered Member #2919 Joined: Fri Jun 11 2010, 06:30PM
Location: Cambridge, MA
Posts: 652
E.TexasTesla wrote ...

Quick question, Whats the max on time for the one tesla board.
I seem to blow fets around 200 uS.

Still interested in one of your midi chips if you offer is still good.

Thanks.


I run 135uS max; no guarantees above that. You want to keep Ipk under 300A.
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