Why does the Vela IF820 DVK have two comports and how do I identify them?

 When plugged into a Windows PC the Vela IF820 DVK will show two comports in Windows device manager.

One com port is a regular UART com port that can be used with EZ-Serial and the other is a HCI com port for flashing firmware.

If its not clear which com port is which you can use Windows device manager. Identify the com ports, right click, select properties and go to the details tab. select the bus reported device description property from the drop down menu.

If the value contains UART0 then this is the HCI com port.

If the value contains UART1 then this is the regular UART com port.

See IF820 DVK SETUP section in the Software User Guide for more information.