AM5729: Flashing procedure for QSPI NOR Flash devices using Uniflash

Hi,

poorna chandu1 said:

in the above command suggested by you What Do u mean by MLO?

MLO is the bootloader, that is needed for loading any binary.

poorna chandu1 said:

in the place of MLO can we replace with " XXX.out " or "app" file

No, you cant as mentioned earlier.

You have to follow the below sequence for flashing binary to Qspi:

• Open CLI from uniflash root folder.
• give command - dslite.bat --mode load --config=<path\to\ccs\target\configuration\am571x.ccxml> -f <path\to\uniflash\root_folder>\processors\FlashWriter\idkAM571x\uart_idkAM571x_flash_programmer.out -n 7
• dslite.bat --mode processors -c COM4 -f C:\ti\pdk_am57xx_1_0_17\packages\ti\boot\sbl\binary\idkAM571x\qspi\bin\MLO -d 2 -i 1 -o 0
• dslite.bat --mode processors -c COM4 -f C:\ti\processor_sdk_rtos_am57xx_6_03_00_106\prebuilt-sdcards\idkAM571x\sd_card_files\led_TEST -d 2 -o 80000

It will load LED test on your next power cycle. You can give any image in last command but it should be of type .appimage, not .out. And change the com port number according to your system settings.

You can follow the below sequence for erasing the binary from Qspi, flashed earlier:

• Power cycle the board and let it boot from qspi.
• Open ccs.
• launch the target configuration but don't connect it.
• right click on the core (a15) -> open gel files view -> right click in the gel/script section -> remove all. Basically, you have to connect the core without gel files.
• then connect the core and load and run <path\to\uniflash\root_folder>\processors\FlashWriter\idkAM571x\uart_idkAM571x_flash_programmer.out.
• You can see CCC in the serial console.
• Note down the port number and close the console.
• Open CLI from uniflash root folder and give below command - dslite.bat --mode processors -c COM4 -e 10000 -d 2 -o 0.
• It will erase the qspi memory space.

Hi,

poorna chandu1 said:

After erasing the  qspi flash,  do we need to load the MLO again

Yes, everytime for writing new images you have to erase previous image and then write new image following the sequence mentioned in earlier reply.

poorna chandu1 said:

After compilation of code in ccs we are able to generate "app"(A multicore image),  can we load it directly ( wheather "app" and "appimage" (the name u mentioned) are the same.

yes, you can. But my suggestion is to use prebuilt binaries that comes along with package for starter. (C:\ti\processor_sdk_rtos_am57xx_6_03_00_106\prebuilt-sdcards\idkAM571x\sd_card_files\).