Mark Butcher

M5222X OTG USB Controller

Discussion created by Mark Butcher on Oct 18, 2007
Latest reply on Nov 9, 2011 by Tom Thompson
Hi All

I am presently working on a USB stack for the M5222X Coldfire devices and am rather surprised to 'discover' that the USB controller works with buffer descriptor tables in little-endian mode.

In fact I only worked it out after analysing the beta reference USB stack from Freescale / CMX. Although the buffer descriptor table is otherwise described in detail in the M52223 and M52211 users' guides this fact is no where to be found. It is therefore almost impossible to get the controller working using just the manual.

Any comments?