RT1015 VCOM is not workable with c# serial tool

[kensu]

Hi

I use RT1015 and MUCXpressoSDK sample code(dev_cdc_vcom_bm).

The sample code will echo, and it's no problem with TeraTerm and Putty tool.

I want to use C# tool to communicate with RT1015 VCOM.

I write c# serial program from 

https://docs.microsoft.com/zh-tw/dotnet/api/system.io.ports.serialport?view=dotnet-plat-ext-5.0

I made a small modification of c# code. I send "a" string every 1 seconds.

After one "a" is write from c# tool, the RT1015 is hang, and c# tool get write timeout.

Does anyone have comment?

I attach my c# tool source code and binary.

Regards

Ken

[kerryzhou · Accepted solution]

Hi @kensu ,

  Please check this post:

https://community.nxp.com/t5/i-MX-RT/CDC-examples-on-imxrt1020-evk/m-p/891113

It may related to your PC tool didn't contains CTS/RTS, so you can refer to the above post, let  the SDK code without CTS/RTS.

Please try it on your side.

Wish it helps you!

Best Regards,

Kerry