SD/MMC support?

You should consider using the serial configuration device, eg, EPCS first.

I think this is the cheapest and lowest pin counts.

When compressed, most uclinux image should fit in 16Mbit/32M/64M devices.

I have the vmlinux with Initramfs included, compressed to around 1Mbytes.

The Nios/II core can boot from EPCS, which can be partition to RBF image and vmlinux.

You can add a small uncompress boot loader, (4-8Kbytes) before the vmlinux.

Other space can be set to MTD flash fs.

If you need more storage space, you can use NIOS SPI to drive MMC/SD interface.

You can mount/umount it under the Initramfs root.

--- Quote Start ---

originally posted by jdhar@Nov 21 2005, 10:36 PM

is it possible to use an mmc card like a cf card? as in have the kernel actually treat it as a storage device; i know it will be slower, but there are definitely advantages to using mmc.. it seems like the only way to implement rom is by on-board flash which is expensive, and cf, which is pin-intensive.

<div align='right'><{post_snapback}> (index.php?act=findpost&pid=11070)

--- quote end ---

--- Quote End ---