Important: The headquarters site requires static IP addresses — the HQ LAN IP address must be static, AND the WAN address of the HQ LAN site device must be static.

The WAN/Internet IP address must be a known STATIC IP address (or an assigned DNS name). Use Internet Explorer to access www.whatismyip.com to verify the address. Also verify that this is so by accessing the setup parameters of the gateway/router that is to be used to provide the access to the Internet for the LAN.

Note: The HQ site may (as an option) have a DNS name, which can be used by Internet users instead of the STATIC IP, to connect to the HQ site.

Important: Port forward the two port numbers associated with each HQ Plus on the LAN.

1.Assign STATIC Network IP parameters to each HQ Plus

Use the LAVA Ether Link Manager utility (See “LAVA Ether Link Manager Utility” on page 5.) to configure the LAN NETWORK settings of the HQ Plus, then (on knowing the IP address of the HQ Plus) use the web page (See “Web Page Interface on HQ Plus and ST Plus” on page 32.) to configure any parameters on the HQ Plus.

2.Confirm that two TCP socket ports are assigned to each HQ Plus

The default ports are 4098 and 4099, (that is, a base port and a base+1 port). Use the web page interface to the HQ Plus to configure the base port number of the HQ Plus. The second port number is computed automatically based on this first value.

3.Forward the HQ Plus IP address base and base+1 ports

Port Forward the HQ Plus IP address base and base+1 ports, through the gateway to allow access to the HQ Plus's IP address:ports from the Internet. Use the information provided on www.portforward.com to accomplish the "port forwarding" procedure on your particular installed gateway/router.

4.Configure the serial I/O parameters

Configure the serial port of the HQ Plus to match the requirements of the equipment that is to be connected to the serial port of the HQ Plus.

SPECIAL NOTE: Some application software programs that communicate with a serial modem expect that the "modem" is installed as a TAPI device under Windows. In this case follow the procedure to install the HQ Plus as a Generic 56K Modem on a selected Com:n port, set the baud rate as required for the equipment, and set the option to operate WITHOUT waiting for Dial Tone. Once the device is "installed", re-boot the PC then do a test by querying the modem to verify the correctness of the "modem installation". See “Installing the HQ Plus on the PC as a (TAPI) Modem” on page 31.

Some application software programs only expect that an external modem is connected to a serial port on the PC. In this case connect the HQ Plus to the appropriate Com:n serial port. The application program will send AT commands through the serial (com:n) port to the HQ Plus.

5.Record important settings

Information to be noted: Keep this information on hand for reference when setting up the ST Plus devices, and for test/troubleshooting purposes.

Internet (WAN) IP address of the HQ site. This is the "call home" IP address that will be entered into all ST Plus devices that are to communicate with this HQ Plus on IP(WAN):port/s.

Base and Base+1 Ports assigned. The Base Port number will be entered into all ST Plus devices, as part of the unique "call home" IP address information, of the HQ Plus. Note several HQ Plus devices can be located at the site, but each HQ Plus will be uniquely identified by its assigned Base Port number.

6.Test the link.

See “Test that the HQ Site is Properly Set Up and Working: HQ Plus Installed” on page 26.

See “Test the End-to-End HQ-ST Link Communications: HQ and ST Installed” on page 27.

Rev. A00

HQ-ST System Manual

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Lava Computer HQ-ST Link system manual
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HQ-ST Link specifications

Lava Computer's HQ-ST Link is a robust tool designed for software developers and engineers dedicated to programming and debugging embedded systems. This versatile device combines advanced features with user-friendly technology, making it an indispensable asset for anyone working in the field of embedded software development.

One of the standout features of the HQ-ST Link is its compatibility with multiple microcontroller families, including STM32 and STM8 series. This broad compatibility ensures that developers can utilize the tool across various projects without the need for multiple programming solutions. The tool supports a wide range of communication protocols, making it versatile for various applications.

The HQ-ST Link is equipped with USB 2.0 connectivity, allowing for fast data transfer rates and seamless integration with various development environments. This facilitated connectivity is vital for loading firmware quickly during debugging sessions, ensuring efficiency when developing complex applications.

Additionally, the device supports SWD (Serial Wire Debug) and JTAG (Joint Test Action Group) interfaces, providing flexibility for software developers working with different debugging tools and strategies. The support for these interfaces enables users to conduct in-depth debugging and analysis, leading to efficient debugging processes.

Another noteworthy characteristic of the HQ-ST Link is its built-in programming and debugging capabilities. With advanced features such as flash programming, boundary scan, and real-time data inspection, developers can identify and rectify issues rapidly, streamlining the development lifecycle. This robustness is significant for minimizing downtime, which can be costly for projects with tight deadlines.

For enhanced performance, the HQ-ST Link integrates seamlessly with various Integrated Development Environments (IDEs), including popular platforms like Keil, IAR, and STM32CubeIDE. This compatibility allows developers to leverage the advanced features of modern IDEs, enhancing productivity and workflow.

Moreover, user-friendly documentation and community support further augment the HQ-ST Link's appeal. Developers can readily access resources and support, which facilitates a smoother learning curve and troubleshooting process. The emphasis on community engagement helps foster innovation as users share tips and techniques.

In summary, the Lava Computer HQ-ST Link combines advanced technology with user-friendly features, making it a powerful tool for embedded systems developers. Its compatibility with multiple microcontroller families, support for various debugging interfaces, fast USB connectivity, and seamless integration with leading IDEs position it as a premier choice in the market for programming and debugging solutions.
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