LPC MicrocontrollersのトピックRe: USB Device : VCOM stop working

USB Device : VCOM stop working

riteshunde — Fri, 03 Nov 2017 06:25:43 GMT

Hi,

I am using OM13092 LPCXpresso with LPC54608. While using MCUxpresso with USB example usb_device_cdc_vcom, it was working fine with echo back of byte I was transmitting on port.but suddenly it stopped working. I can view VCOM port in device driver but it doesn't echo back any data.

I tried with following options :

1. Reinstalling vcom port driver

2. Reinstalling MCUXpresso IDE v10.0.0

3. Swapping USB ports on PC

I am using Windows 7 professional, 32 bit OS.

Re: USB Device : VCOM stop working

jeremyzhou — Tue, 07 Nov 2017 03:05:07 GMT

Hi ritesh unde,

Thank you for your interest in NXP Semiconductor products and 

for the opportunity to serve you.

I was wondering if you can introduce the steps to replicate the issue.

I'm looking forward to your reply.

Have a great day,
TIC
 
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Re: USB Device : VCOM stop working

riteshunde — Wed, 15 Nov 2017 06:03:02 GMT

Hi @jeremyzhou,

Solved, there were some com0 drivers installed on my pc, removed those and vcom started to work.

Thanks.