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1  Using Arduino / Networking, Protocols, and Devices / Re: USB Host Shield : OSCOKIRQ failed to assert on: April 17, 2011, 09:04:03 am
It could be a bad USB host shield.  I recently bought one from SparkFun and found that it was bad.  Called SparkFun and they sent a new one which worked just fine.
2  Development / Other Hardware Development / Re: USB Host Shield Software on: March 15, 2011, 09:26:17 am
Oleg put his code at https://github.com/felis/USB_Host_Shield.  I am running the 'board test' found in the examples directory of the link above.  When I get to the place in the code in the function 'usbtest' that does :

        case( USB_ATTACHED_SUBSTATE_GET_DEVICE_DESCRIPTOR_SIZE ):
          printProgStr(PSTR("\r\nSOF generation started. Enumerating device."));
          break;       
       case( USB_STATE_ADDRESSING ):
          printProgStr(PSTR("\r\nSetting device address"));
          //delay( 100 );
          break;

the function 'Usb.Task' returns the error code from the MAX3421 chip.
3  Development / Other Hardware Development / USB Host Shield Software on: March 14, 2011, 06:47:45 pm
I just got the Arduino Uno and the USB host shield up and running, but am getting an error when running Oleg Mazurov's board test when performing the USB test.  I get an error code of 0xd (hrJERR - J-state instead of response) back from the MAX 3241 HRSL register.  I get this code no matter what USB device I've plugged into the host shield. 

Does anyone have ideas on what the cause of this is?
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