topic Re: LPC5514 USB High Speed device receive corrupt data in LPC Microcontrollers

LPC5514 USB High Speed device receive corrupt data

yamakatb — Thu, 17 Jun 2021 07:22:40 GMT

Hello,

I am testing the reception of files from the Windows Form Application by referring to "usb_device_cdc_vcom".
(1) In order to confirm the transmission contents of the host, the transmission data of the host was acquired with a USB analyzer and compared with the original file.
→ The host was sending normal data.
(2) In order to check the received contents of the device, the USB reception buffer of the device was acquired by the IDE and compared with the original file.
→ I found that some of the data was not received correctly.
So I decided that the LPC5514 wasn't receiving the data. What could be the problem with this?

Details Details
Device : LPC5514SDK Version: 2.9.0 (released 2021-01-15)
Host : Windows10 PC
Toolchain : IAR Embedded Workbench for ARM
Connecter : USB Type-C
Speed : High Speed
clk_in : 16 [MHz]
main_clk : 96[MHz]
USB1-HS PHY : 16 [MHz]

Re: LPC5514 USB High Speed device receive corrupt data

yamakatb — Thu, 17 Jun 2021 07:23:05 GMT

I found a close post, but I haven't solved it yet.

https://community.nxp.com/t5/LPC-Microcontrollers/LPC55S69-USB-device-receives-corrupt-data/m-p/1221742#M44007

Re: LPC5514 USB High Speed device receive corrupt data

xiangjun_rong — Mon, 21 Jun 2021 06:02:24 GMT

Hi,

It is complicated to track down the cause of data corrupted, anyway, I have asked AE team, they have experience, hope they can shed light for the issue.

Xiangjun Rong

Re: LPC5514 USB High Speed device receive corrupt data

yamakatb — Mon, 21 Jun 2021 07:32:08 GMT

@xiangjun_rong

Thank you for your support.

Please let us know if you have the necessary information.

Best regards,

Re: LPC5514 USB High Speed device receive corrupt data

yamakatb — Fri, 25 Jun 2021 08:10:38 GMT

@xiangjun_rong
Thank you for helping.
The problem was in the hardware.
As a result of verification on another board, the phenomenon did not occur.