CCS/TMS320F28379D: Serial flash programmer stucks at "attempting autobaud to load kernel"

Tool/software: Code Composer Studio

Hi,

I am trying to program my LAUNCHXL-F28379D LaunchPad using serial_flash_programmer. I followed all the instructions in SPRABV4C.

But I noticed that in F2837xD_sci_flash_kernels; there are two SCI pin configuration is available. They are GPIO28,29 and GPIO84,85. However, I changed the pin configuration in the F2837xD_sci_flash_kernels example to GPIO42, GPIO43 to be able to communicate over SCIA using LaunchPad. Also tested it with Docklight (I sent A and received A).

My question is after generating the corresponding .txt files for both flash_kernel and blinky codes; can I program my LaunchPad using serial_flash_programmer.exe?

By the way, I couldn't write my updated F2837xD_sci_flash_kernels code to FLASH, I tried it on RAM configuration. Is this cause any problem?

C:\ti\c2000\C2000Ware_1_00_06_00\utilities\flash_programmers\serial_flash_programmer>serial_flash_programmer.exe -d f2837xD -k F2837xD_sci_flash_kernels_cpu01.txt -v -a blinky_cpu01.txt -b 9600-p COM9

C2000 Serial Firmware Upgrader
Copyright (c) 2013 Texas Instruments Incorporated. All rights reserved.

getting comm state
building comm DCB
adjusting port settings

calling f021_DownloadKernel CPU1 Kernel
Downloading F2837xD_sci_flash_kernels_cpu01.txt to device...

Attempting autobaud to load kernel...

Thanks in advance.