Michele Da Rold

MCF52223 Usb host

Discussion created by Michele Da Rold on Feb 18, 2008
Latest reply on Oct 19, 2008 by Hansel Trejo
Hi all,
I'm new to freescale coldfire MCF5222x family. I'm using for test M52223EVB.

I have downloaded the lastet CMX_USB_LITE stack from freescale site. I have build the demo for usb host mass storage.

When I try to read the 128Mb usb stick (ship the evb) I have no problem, the same for my usb stick of 512Mb. I can read all the file and directory in usb stick.

The problems came with usb stick of 1gb, the demo reply "Request failed" when I ask for "dir" command. The software recognize the usb stick but I have this problem.

Is due to ffs thin flash files system that I'm using or because I have a particular usb stick not recognized by the usb host driver?

I have underdstand that the thin-lib.a shipped this cmx_usb_lite is a SuperThin Build, i'm right?

Is available the source code of cmx-ffs-thin or there is a build without superthin option? or I must to buy It from cmx?

Michele Da Rold
ECS srl

Message Edited by michele.darold on 2008-02-18 11:59 AM