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Altera_Forum
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12 years ago

USB port unexpected disabled for Altera Cyclone V

Hello experts, I am a USB driver developer. I have met a strange thing when I developing USB controller driver for Altera Cyclone V. Can anybody help me? Sometimes when start a USB DM...
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Altera_Forum
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12 years ago

It was my understanding that the port line status bits are just a direct sampling of the data lines. Bit 10 should be the D+ line and bit 11 should be the D- line.