topic Re: MCF5484 USB in ColdFire/68K Microcontrollers and Processors

MCF5484 USB

mhench — Tue, 03 Oct 2006 01:08:10 GMT

I am writing a USB driver for the 5484. On the very first OUT message to endpoint 0 (a vendor request)

I get the setup data then see the fifo get the 24 data bytes I am supposed to get, then ~1usec later,

it goes down to 20 bytes without any registers being touched. Interrupts are off.

when I read the data I never see the first longword.

does anyone have any ideas ?

is there a complete test app for USB on this chip yet ?

Thank You.

Rik — Sun, 12 Nov 2006 21:17:36 GMT

Hej.

The old MCF548x chips had USB bugs. Check the date code you have on the chip and check the errata list on the web.

Rik.

volk — Fri, 09 Feb 2007 20:59:04 GMT

Hello

I advice select another USB controller for expriences

this is a first bugs you found

Every time you will found another one.