DSMem

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The DSMem is an adapter for the Nintendo DS produced by the engineer amadeus in his spare time, aiming to supply the DS with a means of rewriteable storage, and to free some of the DS's 4MiB of available memory by using userspace XIP on the binaries contained within the internal flash memory. Over the last months, since the project's announcement on the DSLinux forums at 10:36 on 21 July 2005, the device has evolved from a plan into a fully working prototype. It is to provide an RS232 interface, Flash memory, and a microSD port. The Linux kernel and uBoot bootloader will be stored in the Flash, while other data is to be stored on the microSD cards.

[edit] Hardware Details

The DS has only limited battery power, so low-power parts must be used. This influenced the decision to use the microSD card, Xilinx Coolrunner II CPLDs, and Intel P30 flash memory, with an LM3670 voltage switcher.