Closed Tom-Neverwinter closed 2 months ago
The root issue is access time to read from the flash, it has to be very fast. The flash controller in the rp2040 has a limit on 16MB. Not sure how this Kickstarter project is doing to solve the issue.
This fork explores a way around this limitation https://github.com/pdaxrom/N64cart
@Tom-Neverwinter it is not meant to be brother, despite what it says. the Stacky Pi ships with 64Mbit of memory which is 8MiB
Ah yeah it’s unfortunate that this mistake happens over and over again, bit vs byte. Let’s hope that the next RP chip solves this issue.
To clarify; I’m referring to the 16 MByte limit.
the naming convention used by the pico is annoying and confusing. we stopped using bites over a decade ago
The flash chip vendors usually use bits in their product descriptions and model names like this one https://www.winbond.com/hq/product/code-storage-flash-memory/serial-nor-flash/?__locale=en&partNo=W25Q128JV
I was randomly looking at rpi2040 boards and noticed this newish one
64MB vs the 16MB
I'm assuming if the pinout is the same it could be flashed with a larger u2f file and work the same?
https://www.kickstarter.com/projects/ash-kumar/pico-zero-rp2040-pico-based-board-on-pi-zero-form-factor