[Visit https://www.nuvoton.com/iot_startup for more IoT solutions]
The CyCloneTCP
CyCloneTCP designed by Oryx Embedded is a IPv4/IPv6 TCP/IP stack for resources constrained microcontroller. Supports rich application protocols and confirms to RFC standards. In this article, let's run a demo which use CyCloneTCP with FreeRTOS on NuMaker IoT boards. Supported boards are:
- NuMaker-PFM-M487
- NuMaker-IoT-M487
- NuMaker-IoT-M467
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Test Environment
Because the web server demo use DHCP to get IP address, the NuMaker IoT board uses Ethernet to connect to the Wi-Fi AP which has DHCP server. Then PC/laptop also connects to the same Wi-Fi AP via Wi-Fi or Ethernet. The NuMaker IoT board and PC/laptop are on the same local network, which is more convenient for testing.
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Download Demo Package
- Enter the URL https://www.oryx-embedded.com/download/ on browser
- Click Open Source Version to download the whole package
- Extract the downloaded ZIP file CyCloneTCP_SSL_SSH_IPSEC_CRYPTO_Open_x_x_x.zip to Desktop or the directory you assigned
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Open the Web Server Project
- Use File Manager to find the Keil project of web server demo for NuMaker IoT Board. The directory is
- For NuMaker-IoT-M487 .\demo\nuvoton\numaker_iot_m487\http_server_demo\keil
- For NuMaker-IoT-M467 .\demo\nuvoton\numaker_iot_m467\http_server_demo\keil
- Then double click on http_server_demo.uvprojx file to launch Keil MDK to open it.
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View and Modify the code
Oryx requests to accept the GPL license term before build the code, so
- Click the + to expand the Demo Header group
- Click os_port_config.h to open it
- Add #define GPL_LICENSE_TERMS_ACCEPTED to os_port_config.h
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Web Server Pages
The root directory of web server is located in the
- For NuMaker-IoT-M487 .\demo\nuvoton\numaker_iot_m487\http_server_demo\resources\www
- For NuMaker-IoT-M467 .\demo\nuvoton\numaker_iot_m467\http_server_demo\resources\www
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Build the Demo Code
- Select the Project Target is http_server_demo_flash.
- Click Build icon to build it.
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Program Firmware to Board
- NuMaker IoT board has Nu-Link-ME (e.g. on NuMaker-IoT-M487)
The ISW1 switch on Nu-Link-ME, make sure that the no.1, 2, 3 set to ON, and the no.4 set to OFF- Picture08.png (41.56 KiB) Viewed 18477 times
- NuMaker IoT board has Nu-Link2-ME (e.g. on NuMaker-IoT-M467)
The ICESW2 switch on Nu-Linke2-ME, make sure that the no.1 & 2 are ON and the no.3 & 4 are OFF.- Picture09.png (33.16 KiB) Viewed 18477 times
- Plug in USB cable to PC
- Click Download icon to program firmware
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Open the Terminal
- Run any terminal tool, such as TeraTerm, Putty, etc. to open a terminal for Nu-Link-ME/Nu-Link2-ME Virtual COM port.
- Select baud rate to 115200.
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- PC/laptop connects to Wi-Fi AP via Wi-Fi or Ethernet.
- NuMaker IoT board connects to Wi-Fi AP via Ethernet.
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Reset and Run
- Press RESET button on NuMaker IoT board
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- The terminal shows the running messages. The IP address of NuMaker IoT board is 192.168.100.28
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Visit the Web Page
- Run browser on PC/laptop then enter the URL http://192.168.100.80
- The web server on NuMaker IoT board responses the content of home page.
- The home page shows the network configuration and the page view counter which using SSI feature.
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That's all. Enjoy it.
