Virtual COM Port ?

antonius · ‎2014-02-18

Posted on February 19, 2014 at 01:58

Guys,

I have installed STM Virtual COM Port on my computer,

But everytime I connect the board via USB cable, window says ''USB device is not recognized''

What shall I do to fix it ?

Thanks

Tesla DeLorean · ‎2014-02-20

Posted on February 21, 2014 at 03:27

The .DFU file is a specially packaged binary image, typically built from one or more .HEX or .BIN files using ST's DFU Manager tool.

The release notes suggest there are .HEX files, so use those.

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antonius · ‎2014-02-23

Posted on February 23, 2014 at 09:14

I put BOOT0 = 1 and uploaded Virtual COMport software with Jlink,

it didn't give me any responses, isn't my USB working ? or like you said, flawed ?

thanks

chen · ‎2014-02-27

Posted on February 27, 2014 at 11:09

''I put BOOT0 = 1 and uploaded Virtual COMport software with Jlink,''

That does not sound right. With Boot0 set, DFU should be used to download.

''it didn't give me any responses, isn't my USB working ? or like you said, flawed ?''

I think we cannot tell since the download was not by DFU.

Does your downloaded program have any way to show it is running (eg flashing LED)?

apbqdo · ‎2014-02-28

Posted on February 28, 2014 at 10:04

Rick, I have some problems with the VCP too. When you installed the driver, have you had a new device in Device Manager? (Without connecting the board.) As I understand it, the device should appear anyway, but I do not have any... Or they appear only when you connect the board?

chen · ‎2014-02-28

Posted on February 28, 2014 at 10:09

Hi

''As I understand it, the device should appear anyway, but I do not have any... Or they appear only when you connect the board?''

It should only appear when the board is connected.

apbqdo · ‎2014-02-28

Posted on February 28, 2014 at 10:24

Chen Chung, thank you, it makes it clearer.

Denis.