Thread: N900 will not allow USB OTG!
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joerg_rw is offline joerg_rw
2010-05-08 , 04:26
Posts: 2,222 | Thanked: 12,651 times | Joined on Mar 2010 @ SOL 3
#790
Originally Posted by egoshin View Post
Sorry, Joerg, I believe multimeter. It is possible to create multiple explanations but fact is - 3.5V between red and black cable, after I set DRVVBUS in DEVCTL of TWL4030.
Aha, so why don't you believe your multimeter then wrt to 3.5V being a definitely broken non-functional state for the TWL4030 chargepump, and also completely useless for any attached USB device?
We need five Volt, not 3.5. Of course a chargepump without charge-pumping capacitor can forward the battery voltage (well maybe), this only shows clearly the capacitor on TWL4030 actually is missing
 

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