Moses Izumi
#askfedi
How hard would it be to adapt an SD card to fit into an eMMC?
+ both use the same protocol
+ would make life easier for users who don't have microSD slots on their phones, #postmarketos / #mobian / #chrultrabook developers and those who wish to change OS without reflashing
- high-capacity cards, like the 500GB one in my illustration, would probably confuse the bootloaders of most devices
- slight concerns about signal integrity

Same goes for actively adapting SATA/NVME to UFS.
Not an electronics engineer, just some guy with a dream and a crude drawing.

#permacomputing
#frugalcomputing
#ewaste
Feb 23 at 3:39pmWeb
Show threadAdam HonseFeb 23
@moses_izumi After doing some EMMC bringup for a project at work I learned that there are some differences. The protocol is slightly different between EMMC and SD, so the bootloader would have to actually check for both device types for this to be successful. Also, EMMC supports up to 8 data pins while SD is only 4, so if anything makes assumptions on 8 data lane mode this would prevent SD cards from being used instead. It is possible for this to work if the code checks everything though.
Show threadLeif SamuelssonFeb 23

@moses_izumi

Interesting, since both evolved from MMC (Multimedia Memory Card).