Serial4 Cannot open ComPort

Technical Support
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1

We are having problems opening communication on Com4.
I did as described in the article about Serial Ports and copied a serial port in registry and adjusted the index etc.

However I am still not able to open this port to communicate over it.

Am I overlooking something here?
These are the settings I have for the port in registry settings:

Prefix                        COM
Dll                             libnvuart.dll
Order                        0x00000004(4)
IClass                       {A32942B7-920C-486b-B0E6-92A702A99B35}
DeviceArrayIndex     0x00000083(131)
Index                        0x00000004(4)

Kind Regards,
Kevin

2

Your data looks ok. I quickly tried to reproduce this but it worked all fine for me. To make sure we have the same setting, I exported the registry config I have used, you can get it from here.

The port was loaded in the bootloader debug output:

Loading Serial4(UART_D)...Done Serial4(0)

As well as I was able to list and open the port.

If you still have any issues, please let us know what actually fails and also check the debug output.

3

Hi Samuel,

Your fix worked.
I had copied the complete Serial3 settings, including the subfolder.
After deleting this and applying your registry settings it worked.

Thanks for the help!

Kind Regards