10-23-2018, 05:04 PM
(10-23-2018, 04:20 PM)ab1jx Wrote: SPI itself is the interface right? https://en.wikipedia.org/wiki/Serial_Per..._Interface There's probably some sort of EEPROM chip at the other end. But yeah, it's the really low level stuff. Hmm, I wonder if that's like on a Raspberry Pi too, the GPU actually boots first and boots the CPU. The SPI storage could be the boot stuff for the GPU. This can run Android so it would need to be set up the same, there are a couple different images you download and "flash" (write) to make it work. "Recovery" and the image that contains Android. This would be analogous to Recovery.
Anyway, apparently you can use both MMC and SD which is what I was trying to figure out. The Ayufan or Armbian images can be used on either.
To compare this to the raspi id say that its closer in comparison with the small fat partition where the raspi have some pre-boot files and some basic config files where you set memory, overclock, audio etc...and this pre-boot partition can be compared to the android "recovery" mode, yea...but again, its gross oversimplification.
Ive read somewhere that you can have OSs on both SD and MMC and switch between them with a jumper (need SPI flashed for this to work tho), i was thinking to place an external switch on that jumper and use it as a hackish dual boot, no idea if that can be done that way but cant see why not...