FE3 hardware documentation?

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srowe
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FE3 hardware documentation?

Post by srowe »

Is there a clearer description of the registers of the Final Expansion 3 cart than the User Manual? I've tried to extract a summary of the modes but there's still a few areas that aren't too clear to me.
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groepaz
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Re: FE3 hardware documentation?

Post by groepaz »

if you can read C - the VICE source is always a good reference :)
I'm just a Software Guy who has no Idea how the Hardware works. Don't listen to me.
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srowe
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Re: FE3 hardware documentation?

Post by srowe »

Ah, ok. Hadn't thought of that. I did once try to enable FE in VICE but couldn't work out how to.
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srowe
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Re: FE3 hardware documentation?

Post by srowe »

Is there any documentation on the DIP switches? From the schematic it is clear that 1 & 2 control the device number. It seems that 3 is unused but 4 is somehow connected to the RESET line of the ATMEGA.
SkydivinGirl
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Re: FE3 hardware documentation?

Post by SkydivinGirl »

Here's what the DIP switch settings do.

1 - Drive Number
2 - Drive Number
3 - Cartridge Enable
4 - SD2IEC Reset

Switch 3 enables or disables the FE3 cartridge. The SD2IEC is always enabled so this switch only affects the other FE3 functions.

Switch 4 controls whether or not the SD2IEC is reset when using the full reset button. On the Rev 10, this button is blue. On the Rev 11, this button is black.

Heather
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srowe
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Re: FE3 hardware documentation?

Post by srowe »

Thanks Heather, I'll add a section to my manual for this.
SkydivinGirl
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Re: FE3 hardware documentation?

Post by SkydivinGirl »

I don't have the exact combinations for the drive number switch settings with me but I'll post them here tonight so you have the exact switch settings for each drive number.

Heather
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srowe
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Re: FE3 hardware documentation?

Post by srowe »

From the schematic it looks to be:

S1 off, S2 off = 8
S1 on, S2 off = 9
S1 off, S2 on = 10
S1 on, S2 on = 11
SkydivinGirl
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Re: FE3 hardware documentation?

Post by SkydivinGirl »

I confirmed all your drive number switches on the Rev 11. :)

Heather
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orion70
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Re: FE3 hardware documentation?

Post by orion70 »

srowe wrote:From the schematic it looks to be:

S1 off, S2 off = 8
S1 on, S2 off = 9
S1 off, S2 on = 10
S1 on, S2 on = 11
They copied the DIP switch scheme from the 1541-II :P
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srowe
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Re: FE3 hardware documentation?

Post by srowe »

OK, I've added a new appendix and uploaded a new version of the document and PDF.
SkydivinGirl
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Re: FE3 hardware documentation?

Post by SkydivinGirl »

Looks good! :D

Heather
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joshuadenmark
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Re: FE3 hardware documentation?

Post by joshuadenmark »

Great work, much appreciated, thanks!
Kind regards, Peter.
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