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USB mass storage device error

Other Parts Discussed in Thread: TM4C123GH6PM

Hello!

I'm trying to create a mass storage devie from tiva c launchpad (tm4c123gh6pm). I ported a code from lm4f232. However the same code works perfectly fine on the stellaris launchpad (lm4f120h5qr), on the tiva c launchpad the D+ line goes up to just 0.5V instead of 5V.

I'm desperately trying to find the reason for this, but I'm out of ideas, so if somebody came across the same problem, or just know what should I do, or works at TI, then feel free to help me!

Thanks!

Deni

p.s. sorry for bad english