Could M483 disable VBUS function?
Posted: 06 Aug 2019, 13:55
hi
we use M483 for a USB device, but now the host can't recognize the device
1, we connect the HSUSB_VBUS to 5V directly,
2, use external 24M HXT source
the problem is
in the initialization, after host reset device, the communication can't enter the descriptor query sequence, and M483 could not receive the interrupt for reset
could M483 connect VBUS to 5V directly all the time for USB device?
or how can I control the sequence for USB initialization?
Thanks.
we use M483 for a USB device, but now the host can't recognize the device
1, we connect the HSUSB_VBUS to 5V directly,
2, use external 24M HXT source
the problem is
in the initialization, after host reset device, the communication can't enter the descriptor query sequence, and M483 could not receive the interrupt for reset
could M483 connect VBUS to 5V directly all the time for USB device?
or how can I control the sequence for USB initialization?
Thanks.