Configuring Hardware Flow Control In the WSTK#

Hardware flow control can be enabled or disabled between the UART controller of the WSTK and Silicon Labs SoC. In the SoC, hardware flow control can be configured with the configuration parameter shown in Section Using an Example Application. In the WSTK the hardware flow control can be configured as described in this section. The example below shows how to enable hardware flow control.

Important: If the hardware flow control settings are not the same in the SoC and WSTK, the HCI will not work.

1. Open Simplicity Studio and, in the Debug Adapters view, right-click the target device.

2. Select Connect.

3. Right-click the device again and select Launch Console.

4. Select the admin tab.

5. Set flow control with the following command:

       WSTK\> serial vcom config handshake rtscts
       RTS handshake enabled
       CTS handshake enabled
       Serial configuration saved

6. Check the configuration with the following command:

   WSTK\> serial vcom
   ----- Virtual COM port -----
   Stored port speed  : 115200
   Active port speed  : 115226
   Stored handshake   : rtscts
   Actual handshake   : rtscts
   RTS Asserted - Ready to Receive.

The flow control can be disabled by setting handshake parameter to none in step 5 above.