retrobits | How Commodore 64 cartridges work + Versa64Cart build @retrobitstv | Uploaded April 2021 | Updated October 2024, 2 hours ago.
Ep 34 : ROM cartridges, bank switching, and memory maps. How they work together to allow the Commodore 64's 6510 CPU to access more than 64KB. Building, programming, and testing the Versa64Cart, an open source multi-ROM project for the C64 and C128.

00:00 Introduction
01:18 Memory Maps, Bank Switching and the PLA
05:12 Building the Versa64Cart
09:12 Programming the EEPROM
14:37 3D Printing the Versa64Case
16:39 Jumper and Switch Settings
19:09 Testing the Cartridge
20:15 Commodore 128 Cartridges
21:11 Conclusion

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Versa64Cart - github.com/bwack/Versa64Cart
Versa64Case - github.com/svenpetersen1965/Versa64Case

Products used and featured - amazon.com/shop/retrobits

Hakko FX888D Digital Soldering Station - amazon.com/gp/product/B00C1N30DI/ref=as_li_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=B00C1N30DI&linkCode=as2&tag=retrobitstv-20&linkId=47bec9f7edccf7ce1eca1ad9ed9d9b26
Weller Solder Dispenser – amazon.com/gp/product/B000B5YHZ8/ref=as_li_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=B000B5YHZ8&linkCode=as2&tag=retrobitstv-20&linkId=39489f107332e29ff0f2c593a78f5d85
Velleman Circuit Board Clamping Kit - amazon.com/gp/product/B01GOL7786/ref=as_li_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=B01GOL7786&linkCode=as2&tag=retrobitstv-20&linkId=7274bd88488ef720fbbc888abc7dff33
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Images:
c64-wiki.com