topic LPC54628 usb0 FS HC transfer failed after a USB connection inactive for a long in LPC Microcontrollers

LPC54628 usb0 FS HC transfer failed after a USB connection inactive for a long

changlin_ren — Thu, 10 Oct 2024 22:18:14 GMT

I use LPC54628 controller usb0 FS HC connect to a usb device, and it runs 24/7. I was told USB device is configured never go to sleep or deep-sleep, or Deep power-down mode.

The issue is when a USB connection inactive for a long time period, the first usb transfer always failed (kStatus_USB_TransferFailed) after usb reset, communication recovered. Base on user manual, by default, usb0 deep-sleep is sw configured, and Deep power-down mode is "off"

Question:
1. if "deep-sleep" is sw configured, what is by default?
2. could you send me a demo code to explicitly to turn deep-sleep off?

Thank you,

Re: LPC54628 usb0 FS HC transfer failed after a USB connection inactive for a long

changlin_ren — Fri, 11 Oct 2024 01:58:17 GMT

rewrite the issue:
The issue is when a USB connection inactive for a long time period, the first usb transfer always failed (kStatus_USB_TransferFailed).
After usb reset, communication recovered

Re: LPC54628 usb0 FS HC transfer failed after a USB connection inactive for a long

Alice_Yang — Sat, 12 Oct 2024 08:35:55 GMT

Hello @changlin_ren

LPC54628 operate as a USB device or host? By default, it is in active mode. We need to check the code to determine the exact configuration. How about first running a USB demo from the SDK? Then I can help you check it.

Alice

Re: LPC54628 usb0 FS HC transfer failed after a USB connection inactive for a long

changlin_ren — Fri, 18 Oct 2024 16:42:07 GMT

LPC54628 operate as a USB host

"By default, it is in active mode." I think this is the answer I need. Thanks