When launching Code Composer Studio, I am getting intermittent error messages indicating communication problems.

Question :

When I try to launch Code Composer Studio, I intermittently see error messages indicating communication problems: "Can't Initialize Target DSP Trouble with JTAG controller Check your Cabling and your Multiprocessing Configuration " Or "Can't Initialize Target DSP I/O Port =

" Or "Can't Initialize Target DSP Error # Error Address

Answer :

There are a number of troubleshooting areas to consider when encountering any of the above errors. Even though the errors may look different, they essentially indicate the same problem with the system. One of the most frequently asked questions pertaining to these is whether error numbers given in the third error message really signify anything. The answer to this is no. These error messages are generated through the TI communications interface that Code Composer uses to communicate with target hardware.

Various troubleshooting areas need to be considered -- these are listed below in the order from most to least likely to have invoked any of the above error messages:

DSP Target I/O Settings:

1. Your DSP target has been set at an invalid I/O address. Make sure that your DIP switch settings on your target card match the I/O address set when running the Code Composer Studio Setup.

2. A conflict may exist at the I/O address set for your target. Check that no other hardware on your PC is using this I/O setting. If you are running Windows 95/98, you can check for conflicts by selecting START-SETTINGS-CONTROL PANEL-SYSTEM and choosing the Device Manager tab -- this will outline a layout of your system and will indicate if any conflicts exist between your target board and any other hardware on the system.

Code Composer Setup Configuration:

1. The device driver that you set when running the Code Composer Studio Setup utility may be incorrect. Make sure that this driver is appropriate for your DSP target configuration. Please ensure you are using the latest device driver available for the particular DSP family you are debugging.

2. Your multiprocessing configuration has not been set up correctly. Please refer to Chapter 3 - "Multiprocessing with Code Composer Studio" in the Code Composer Studio Users Guide, for details on correctly configuring your Multiprocessing System.

3. The Code Composer Studio Setup utility may not be residing in the same directory as your Code Composer Studio executable program. Please make sure that the setup program is in the same directory as the executable.