OESF Portables Forum

Everything Else => General Support and Discussion => Zaurus General Forums => Archived Forums => Hardware Mods => Topic started by: Tom61 on December 01, 2005, 06:56:33 pm

Title: Emulating A Mmc Card W/ An Spi Interface Or Gpios?
Post by: Tom61 on December 01, 2005, 06:56:33 pm

Is emulating a MMC card using an SPI interface or GPIOs feasible?

I have a portable media player with 30GB harddisk that I'm playing around with hacking. Internally it has 2 SPI interfaces, 32 GPIO interfaces (all but but a handfull are free) on the main chip that runs the device, and runs uCLinux for the OS. It would be rather interesting to have the ability to have it serve as a HD to a device that lacks USB host (camera, SL-5500, etc.), but has a MMC slot. There is a device for PSP that emulates a memory stick card and interfaces a harddisk to it, I'd like to do something like that, but for MMC card using devices.

Title: Emulating A Mmc Card W/ An Spi Interface Or Gpios?
Post by: Da_Blitz on December 05, 2005, 06:23:51 am

Its not just feasible, its part of the SD/MMC spec