1. Install ccs5.3, download the cracked serial number, and copy it to C:\ti\ccsv5\ccs_base\DebugServer\license 2. I use the 560plus emulator of Hezhongda. Go to its official website to download the driver of ccs4.1, which is compatible with ccs5. The installation path must be set to C:\ti\ccsv5\ccs_base, otherwise the emulator cannot be recognized (I just used the default installation path at the beginning, and I couldn’t connect to the target board for most of the day. The emulator model was set incorrectly and was not in the selection list) 3. The imported ccs3.3 project may also need to set the header file include path and library file path. After compilation, create a new "target configuration file" that is the emulator model and cpu model 4. Click debug directly. If it is correct, it will connect to the circuit board. If it fails, try several more times 5. The method of burning flash is: first modify the link file to flash, and then after compilation, debug will automatically erase and burn flash. If you don’t want to erase all, you can do it in flash Modify 6 in onchip. There is a note: when you import the project, the previous .cmd file is generally defaulted, but after you select the processor model, ccs5 will modify and add a .cmd file. You need to delete it at this time, otherwise the link will fail.