26 Jul
2012
26 Jul
'12
9:24 p.m.
Dear David Hawkins,
In message 50118FE1.2000806@ovro.caltech.edu you wrote:
In your opinion, is MPC8308 USB Device Mode completely broken?
Define completely...
When acting as a mass storage device, we saw some ~14 MB/s throughput to the device when the bug did not trigger; when it did, we got 1.8 MB/s and less, and many device reset messages in the system logs.
How about USB Host mode? The board will communicate with a rear transition module (another board plugged in from the rear side of the chassis). If MPC8308 USB Host Mode is reliable, then I can wire the USB interface through the backplane for use on the RTM, eg., for talking to an FT245/232 device or a USB microcontroller.
Host mode workes fine.
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
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bad.
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