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USB Detect on AT91SAM7

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contagiouseddie

contagiouseddie

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Hi everyone,

I need to used one of the interrupt pins for detecting a USB connection on a AT91SAM7 MCU. But, this would mean that I had to sacrifice one of the IRQ pins which is valuable. Is there any other method to do this? Because this pin will allow me to enable the pull-up on the USB+ signal line and I cannot afford to enable this pull-up all the time to conserve power unless a USB connection is detected.

Thank you. :D
 

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