Throughput Dual IP (IPv4 and IPv6) Application#

Introduction#

This application demonstrates the procedure to measure WLAN UDP/TCP throughput in both ipv4 and ipv6 simultaneously by configuring the RS9116W.

Setting Up#

To use this application, the following hardware, software and project setup is required.

Hardware Requirements#

Figure: Setup Diagram for WLAN Throughput Example

Software Requirements#

  • WiSeConnect SDK

  • Embedded Development Environment

  • Installation of Build tools for Linux including the gcc compiler (or equivalent on PC or Mac)

    • For Ubuntu, use the following command for installation: user@ubuntu:~$ sudo apt install build-essential

  • If you don't have Linux, Cygwin for Windows may be used instead

  • A working installation of iPerf version 2.0.9. Note: iPerf version 2.0.9 is the only version that has been verified to work with this example.

Project Setup#

Configuring the Application#

The application can be configured to suit your requirements and development environment. Read through the following sections and make any changes needed.

Host Interface#

  • By default, the application is configured to use the SPI bus for interfacing between Host platforms (STM32F411 Nucleo / EFR32MG21) and the RS9116W EVK.

  • This application is also configured to use the SDIO bus for interfacing between Host platforms (EFM32GG11) and the RS9116W EVK.

Bare Metal/RTOS Support#

To select a bare metal configuration, see Selecting bare metal.

Wi-Fi Configuration#

Configure the following parameters in [rsi_dual_ip.c] to enable your Silicon Labs Wi-Fi device to connect to your Wi-Fi network.

#define SSID          "SILABS_AP"  // Wi-Fi Network Name
#define PSK           "1234567890" // Wi-Fi Password
#define SECURITY_TYPE RSI_WPA2     // Wi-Fi Security Type: RSI_OPEN / RSI_WPA / RSI_WPA2
#define CHANNEL_NO    0            // Wi-Fi channel if the softAP is used (0 = auto select)

Client/Server IP Settings#

#define PORT_NUM            <local_port>        // Local port to use
#define SERVER_PORT         <remote_port>       // Remote server port
#define SERVER_IP_ADDRESS   "192.168.0.111"     // Remote server IPv4 address .
#define SERVER_IP_ADDRESS_6 "2001:db8:0:1::121" // Remote server IPv6 address .

Throughput Measurement Types#

The application is configured to measure throughput using UDP, TCP in ipv4 and ipv6 respectively.

#define THROUGHPUT_TYPE_4 UDP_TX_4
#define THROUGHPUT_TYPE_6 TCP_TX_6

#Testing Throughput There are two 'ends' involved when measuring throughput, data is sent between the client end and the server end. By default, the Iperf protocol sends data from the Client to the Server to measure throughput. Depending on the configuration selected, the RS9116W may be the client or the server. In general, it is advisable to start the server before the client since the client will immediately begin to try to connect to the server to send data.

The following sections describe how to run the RS9116W throughput application together with examples for various Iperf configurations that run on the PC.

Running the RS9116 Application#

After making any custom configuration changes required, build, download and run the application as described in the EFx32 Getting Started or STM32 Getting Started.

UDP Tx v4 Throughput#

To measure UDP Tx throughput, configure the RS9116W as a UDP client and start a UDP server on the remote PC. The Iperf command to start the UDP server on the PC is:

C:\> iperf.exe -s -u -p <SERVER_PORT> -i 1

For example ...

C:\> iperf.exe -s -u -p 5001 -i 1

TCP Tx v6 Throuhgput#

To measure TCP Tx throughput, configure the RS9116W as a TCP client and start a TCP server on the remote PC. The Iperf command to start the TCP server is:

C:\> iperf.exe -s -V -p <SERVER_PORT> -i 1

For example ...

C:\> iperf.exe -s -V -p 5001 -i 1

#Selecting Bare Metal The application has been designed to work with FreeRTOS and Bare Metal configurations. By default, the application project files (Keil and Simplicity studio) are configured with FreeRTOS enabled. The following steps demonstrate how to configure Simplicity Studio and Keil to test the application in a Bare Metal environment.

Bare Metal with Simplicity Studio#

  • Open the project in Simplicity Studio

  • Right click on the project and choose 'Properties'

  • Go to 'C/C++ Build' | 'Settings' | 'GNU ARM C Compiler' | 'Symbols' and remove macro 'RSI_WITH_OS=1'

  • Select 'Apply' and 'OK' to save the settings

Bare Metal with Keil#

  • Open the project in Keil and select 'Options for Target'

  • Go to the 'C/C++' tab and remove 'RSI_WITH_OS' macro present under Preprocessor Symbols

  • Select 'OK' to save the settings

Compressed Debug Logging#

To enable the compressed debug logging feature please refer to Logging User Guide