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VF3x USB connection
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Dear Vybrid support team,
Hello,
I have a VF3x board which has UART and USB interface. I have connected the UART interface to the PC with terminal SW, and its responding 0x23454523 sequence.
How should I test the USB interface?
Which parameters should I measure/check?
If hardware is correct, Is it a plug and play interface to the PC, so that should I see a new device connection in Windows?
I am drawing about 100 mA from 5Volts power supply. May I draw this amount of current from PC's USB port?
Best regards.
Mehmet Ali Ipin
Solved! Go to Solution.
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Dear Mehmet,
One of the 2 USB ports (refer to the documentation which one) can be used for booting, so when connected to a PC, it enumerates, and Vybrid appears among the devices on the Device Manager list.
Regards, Naoum Gitnik.
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Dear Mehmet,
One of the 2 USB ports (refer to the documentation which one) can be used for booting, so when connected to a PC, it enumerates, and Vybrid appears among the devices on the Device Manager list.
Regards, Naoum Gitnik.
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Dear Naoum,
Thank you very much for your helps. When I removed pull up resistors on USB_0 DM and USB0_DP lines, windows recognized my VF3x board, I saw Vybrid message and our hardware is connected as HID.
Have you any idea if PC allow 500 mA from its USB_VBUS port pin to USB device, without USB device going to suspend mode? I don't want to use extra power supply, I mean, may I use USB port VBUS pin as a 5V and 500 mA power supply?
Thanks and with my best regards.
Mehmet Ali Ipin
