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simoninns / SmallyMouse2

Universal USB to quadrature mouse adapter
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fix for A1200 Rev 2B Amiga RMB #23

Closed kipper2k closed 11 months ago

kipper2k commented 3 years ago

After building and testing the smally mouse on Amigas i found that the Rev2B A1200 Amiga RMB did not work. the problem was identified as bad caps and non working Paula. There is someone on Ebay who is selling "fixed" adapters but as far as i can tell he has not released any details on how he done it.

I believe i have fixed the problem by placing 2 mosfets in cascade from the chip to the RMB input. I will play around with the resistor values and do a little more testing and then i will release the mod here so all can benefit

Sgw32 commented 2 years ago

@kipper2k Thanks for the idea! Does it work on Amiga 500?

kipper2k commented 2 years ago

yah, works on all

On Wed, Oct 12, 2022 at 1:06 PM Sgw32 @.***> wrote:

@kipper2k https://github.com/kipper2k Thanks for the idea! Does it work on Amiga 500?

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kipper2k commented 1 year ago

Forgot to add this, it is a render of how it looks on the motherboard. There is a USB header so people can run a USB cable if they don't want to use the actual USB plug,. below the Smally is my video Hybrid board which you break off and an expansion board for IDE so people can mount it wherever :)

Brian

simoninns commented 11 months ago

Closing issue as this is not a bug (hopefully the closed issue will still be searchable if there are people with similar problems).