1. I have my own PCB with TMS320F28027PT (48 PIN). My CCS V6 works prefect with F28027 board with XDS 510LC USB JTAG emulator.
2. Recently I made F28035PAG (64 PIN) board and the same setup was working fine with this board: CCS V6 and XDS510LC USB emulator. I was loading my code, modfying and reloading several times. Meanwhile, the watch window was not refreshing the variables. So I clicked on the 'enable silicon real time button' (the wristwatch type symbol) etc and played a little bit. I was happy and faced no problem. Surprisingly, the next day, I was not able to reconnect the target board. I got the error message as:
"Error connecting to the target: Error 0x80000200/-1135 Fatal Error during: OCS, Unrecoverable emulation error".
I looked at the board and realized that I forgot to connect a ground resistance from TRSTn PIN. I inserted a 4.7K resistance afterward, but still it did not work. I ran JTAG connectivity and I got the following result:
[Start: Spectrum Digital XDS510USB Emulator_0]
Execute the command:
%ccs_base%/emulation/drivers/sdjtag.exe -f %boarddatafile% -v -X reset -X scantest
[Result]
** BoardFilePath: C:\Users\Dell\AppData\Local\TEXASI~1\CCS\TI\0\0\BrdDat\testBoard.dat
** Resetting Emulator
-- Emulator is Reset
** Emulator Scan Test
IR ScanError IRLength0=144,IRLength1=1
[End: Spectrum Digital XDS510USB Emulator_0]
3. Suspecting that there could be problem with the uC, I made another board today. The most interesting this is: when I pressed the "debug" button in CCS window, the project got compiled and loaded into the new board for first time. However, I faced the same problem as in 2. then onward. I am not able to connect anymore.
Please advise what should I do to understand the problem.
