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TMS320F28377D: Failed to burn cpu2 using serial_flask_programmer

Part Number: TMS320F28377D
Other Parts Discussed in Thread: FLASH-PROGRAMMER, C2000WARE

Tool/software:

The serial burning of CPU2 using serial_flash-programmer software was unsuccessful. In the command window, enter "F: \ qianrush \ V4-TEST CPU2 (20250109) \ V4-TEST CPU2 (20250109) \ CPU2 \ serial_flash-programmer. exe" - d f2837xD - k "F: \ qianrush \ V4-TEST CPU2 (20250109) \ V4-TEST-CPU2 (20250109) \ CPU2 \ F2837xD-Sci_flash-kernels_cpu02. txt" - a "TEST ACTE-CCPU25. txt" - p COM3. After running, it will get stuck in ff===ff
ff==ff
6==6
0==0
0==0
0==0
Bit rate /s of transfer was: The area at 500.207428 has been stationary, and theoretically, the upper computer instructions that should have come out have not appeared. The burning of cpu1 was successful, but the burning of cpu2 failed.

If following the steps in the 2000 serial port burning program application manual, the upper computer command will successfully appear when burning CPU1, and it can burn the application program normally and run it. If you want to burn cpu2 through the upper computer interaction command that appears on cpu1, press 13 to download F2837xD_sci_flash-kernels_cpu02 to
In CPU2, Error will be displayed: No CPU2 flash kernel provided!, But the relevant burn files for CPU2 have already been put into it, but it failed.

Alternatively, CPU2 can be programmed using "F: \ qianrush \ V4-TEST-CPU2 (20250109) \ V4-TEST-CPU2 (20250109) \ CPU2 \ serial_flashpramer_appn. exe" - d f2837xD - k "F: \ qianrush \ V4-TEST-CPU2 (20250109) \ V4-TEST-CPU2 (20250109) \ CPU2 \ F2837xD_sci_flash-kernels_cpu02. txt" - a "TEST ACTE CPU22.5. txt" - p COM3, which can generate interactive commands from the upper computer. However, when entering 2 to program the program, Error will appear: No flash application specified for CPU2 Flash Programming!, Even if all the relevant burn files are present, it still fails.

At the same time, in order to verify whether the application program written by oneself is not working, examples from C2000ware were used, and the already written blinky_dc_cpu02.txt file of cpu2 was burned. However, the same error was displayed when the burning failed.

In the forum and on the Internet, I found many examples, and felt that I tried many methods, but still could not succeed. I hope I can get some help. Thank you very much.