Hello!
I’m having a heckuva time getting my shiny new sparkfun usb host shield (DEV-09947) working with the duemilanove.
Ok so here’s my journey thus far: Got headers soldered, shield and arduino mashed together, usb hooked up (to computer, not host), external 9v 400mA power supply hooked up, and I try both board test sketches for usb library and usb 2.0 library from circuits @ home. Both sketches fail on the SPI long test. Other tests are successful, such as the short SPI test (I get “Die revision 03”), and second GPIO test. First GPIO test fails because I don’t have the loopback soldered up. Then I also get the “OSCOKIRQ failed to assert” error after it runs through the 100 oscillator resets.
Since I don’t have an oscilloscope, I can’t test SPI unfortunately… but here’s what i’ve done so far for troubleshooting:
verified all solder joints for headers on SPI pins are good by probing traces
getting 5v from regulator
getting 10.4v on Vin
getting 5v on usb port (tested pins soldered to board)
I’m pretty much stuck now, thinking that maybe the crystal oscillator is bad, esp. since Oleg said that if the short SPI test and GPIO tests pass but not long SPI, it’s most likely the oscillator since the other 2 don’t rely on it.
Open for any suggestions before I get this thing replaced! Thanks! 
Further testing: made sure resistance between ground and all 5v pins on max3421e (GPIN pins) were around 200KOhm, and all 3.3 pins (RES, Vcc, Vl, SCLK, MOSI, SS) were >1MOhm.
Hello.
It seem like I have the exact same problem. I recieved my Sparkfun usb host board the other day,
after it had been in back-order for a while. I have tried with and without external powersupply (9v),
without and without the changes made to Max3421e_constants as mentioned in the product description.
I get the following errors:
“freeMemory() reports: 1506Error: OSCOKIRQ failed to assert” when running blueutils.
“Error: OSCOKIRQ failed to assert” when running board_test.
Do you have any news regarding your board? Did you get it to work? Wonder if im sitting here with a
defective board. Can’t seem to find any usefull information regarding this error anywhere, at least no
information that helps ressolve the problem.
best regards.
Mik
Saw you on CAH comments. Did you get it working with V2.0? What hardware modifications are required? Did you get it working with the older library?
Nope, haven’t gotten it to work with either library - I’m sending it back in to sparkfun for replacement.
Please let me know how that goes for you. And when you find out what are the hardware modifications. No hurry!
will do. when I get it working I’ll post back here on what I did to get it working.
I’m having problems with both versions of the Hardware. How is yours?