Connecting your Launchpad development board to your computer can sometimes be tricky. A successful connection often depends on correctly identifying your Launchpad’s serial number. This guide will walk you through the process of troubleshooting connection issues and potentially finding your Launchpad Serial Number using diagnostic logs. While we won’t directly find the serial number in this example, understanding these logs is crucial for effective troubleshooting and can indirectly lead you to identifying it.
Understanding the XDS110 Debug Probe Logs
The provided log output details a connection test using a Texas Instruments XDS110 USB Debug Probe. This probe is commonly used with Launchpad development boards for debugging and programming. Let’s break down the key sections of the log:
Test Connection Success: Initial Diagnostics
The log begins by indicating a successful test connection initiated through the Code Composer Studio (CCS) environment. The dbgjtag utility, a command-line tool within CCS, is used to perform various diagnostic tests. The successful connection confirms basic communication between the computer and the XDS110 probe.
Board Configuration and Reset
The log confirms the location of the board configuration file (testBoard.dat). This file contains important information about the target device and its connection settings. The log then shows the successful reset of the XDS110 controller, both in software and hardware. This confirms that the probe is functioning correctly at a fundamental level. Details such as the ‘jioxds110.dll’ version and the controller version number can be helpful for troubleshooting compatibility issues. Noteworthy is the confirmation that the connection is direct (without a cable), a common setup for Launchpads.
JTAG Integrity Scan-Test: Verifying Communication
The core of the diagnostic process lies in the JTAG Integrity scan-test. This test verifies the integrity of the JTAG (Joint Test Action Group) interface, the primary communication pathway between the debugger and the target device on the Launchpad. The test involves sending specific patterns (0xFFFFFFFF, 0x00000000, etc.) through the JTAG IR (Instruction Register) and DR (Data Register) and verifying that the received data matches the sent data.
The log clearly shows successful results for both the JTAG IR and DR Integrity scan-tests. This indicates a healthy JTAG connection between the XDS110 probe and the target device on the Launchpad. Passing these tests rules out fundamental communication issues with the JTAG interface.
Next Steps for Troubleshooting
While this log demonstrates a successful low-level connection, it doesn’t directly reveal the Launchpad’s serial number. If you’re still experiencing debugging connection issues, consider these next steps:
- Device Manager (Windows) or System Information (Mac): Check for any errors associated with the XDS110 probe in your operating system’s device management tools. This might indicate driver issues.
- CCS Configuration: Double-check the target configuration settings within CCS to ensure they match your specific Launchpad model.
- Launchpad Documentation: Consult the official documentation for your specific Launchpad model. It may provide guidance on locating the serial number or troubleshooting connection problems. Often the serial number is printed on the board itself.
- Online Forums and Support: Search online forums and support communities dedicated to your Launchpad model. Others might have encountered similar issues and found solutions.
By understanding the information provided in the XDS110 debug probe logs and following these troubleshooting steps, you can significantly improve your chances of successfully connecting to your Launchpad and ultimately identifying its serial number if necessary for advanced troubleshooting.
