AW: Teh 52211 EVB

Hi Sanjay
 
I haven’t used the 52211 myself, only the 52223. I expect the EVBs to be
very similar.
Presently I have a stack to work in HID mode (still being developed –
with some delay do to other work though) – I have started a sort-of blog
here: http://www.utasker.com/forum/index.php?topic=176.0
This means that I don’t have any information concerning your first
question.
 
To the second question: The MAX3353 is also on the 52223EVB  - here is
an extract from my development notes using it:
”The M52223EVB served as development board but to complicate matters it
does allow a configurable OTG interface using a chip called the MAX3353.
This is controlled by I2C interface and can switch power to the USB bus
when it is operating in OTG mode. It also has switchable pull-down
resistors for host mode operation an switchable pull-up resistor for
device mode operation. Although not absolutely necessary for the device
mode operation the USB driver was prepared to allow automatic setting of
this device with the thought that this may well be necessary with other
USB controllers with this capability.”
You can bypass this with a jumper on the board and in any case you need
to use the internal USB controller – the MAX3353 is used to optionally
power the USB bus and configure pull ups/downs. It thus allows switching
between device and OTG bus modes.
To use the device it needs to be configured via I2C to be set to the
working state that you require. All info required to do this is
available in the MAX3353 data sheet. To work in high speed device mode I
had to send just 2 configuration bytes:
Write 0x00 to config register 2
Write 0x14 to config register 1

Regards
 
Mark
 
 
 
Mark Butcher Bsc (Hons) MPhil MIEE
 
M.J.Butcher Consulting                
Obere Bahnhofstr. 13,  CH-5507 Mellingen,
Switzerland          <http://www.mjbc.ch/> www.mjbc.ch /
<http://www.utasker.com/> www.uTasker.com
056 491 48 10 / 079 402 26 37 / Skype: M_J_Butcher
 <http://www.uTasker.com>  
 
 
-----Ursprüngliche Nachricht-----
Von: [email protected] [mailto:[email protected]]
Im Auftrag von Sanjay Morab
Gesendet: Donnerstag, 21. Februar 2008 14:12
An: [email protected]
Betreff: [ColdFire] Teh 52211 EVB
 
Dear Mark
 
 
I am using the 52211 EVB. All examples provided along with the EVB are
more or less working some problems I am facing
1. When I run Host demos with mass sorage device, I can view the "DIR"
,Dump" etc command only on first time after downloading.That if I load
the Mass Storage host demo. on terminaI get all relavent messages. If
connect USB PEN drive it detects and if I type "dir " I am getting the
list of files. If again I type the "dir" I get " Unknown Command".
 
2. I like to use MAX3353 portion of the EVB and run all the sample
instead of on Chip USB. How can I do it. 
 
regards
Sanjay Morab
[email protected] Send a post to the list.
[email protected] Join the list. [email protected]
Join the list in digest mode. [email protected] Leave the
list.