PHYTC-3P-KIT-AM64: Flashing using UART uniflash tool is failing

Tushant Tushant

Part Number: PHYTC-3P-KIT-AM64
Other Parts Discussed in Thread: UNIFLASH

Hello,

I am working on the Phytec development board.

I am trying to write to the OSPI flash memory. After discussing with phytec support, I got to know OSPI flash memory is changed to MICRON compared to AM64 Starter kit.

I used the "ospi_flash_diag_am64x-sk_r5fss0-0_nortos_ti-arm-clang" example to get out the configuration of the MICRON flash.

Then i manually fill the configuration in the UART uniflash example project and compiled.

Now i have the flash writer .tiimage file and pre-build SBL NULL tiimage.

I tried to flash OSPI memory using uart_uniflash.py:

Sending Uart Uniflash to the phytec board is sucessfull.
Then i tried sending SBL null image but it failed with error(Logs shared below

[INFO] Selected SBL OSPI/QSPI binary : C:/ti/mcu_plus_sdk_am64x_08_06_00_43/tools/boot/sbl_prebuilt/am64x-sk/sbl_null.debug.tiimage
[INFO] Parsing config file ... SUCCESS. Found 2 command(s) !!!

[INFO] Executing command 1 of 2 ...
[INFO] Found flash writer ... sending C:/Users/tus/workspace_Testing_Examples/sbl_uart_uniflash_am64x-sk_r5fss0-0_nortos_ti-arm-clang/Debug/sbl_uart_uniflash_am64x-sk_r5fss0-0_nortos_ti-arm-clang.tiimage
[INFO] Sent flashwriter C:/Users/tus/workspace_Testing_Examples/sbl_uart_uniflash_am64x-sk_r5fss0-0_nortos_ti-arm-clang/Debug/sbl_uart_uniflash_am64x-sk_r5fss0-0_nortos_ti-arm-clang.tiimage of size 385342 bytes in 35.32s.

[INFO] Executing command 2 of 2 ...
[INFO] Command arguments : --file=C:/ti/mcu_plus_sdk_am64x_08_06_00_43/tools/boot/sbl_prebuilt/am64x-sk/sbl_null.debug.tiimage --operation=flash --flash-offset=0x0000
Sent C:/ti/mcu_plus_sdk_am64x_08_06_00_43/tools/boot/sbl_prebuilt/am64x-sk/sbl_null.debug.tiimage of size 293399 bytes in 27.86s.
[STATUS] ERROR: Incorrect magic number in file header !!!

All commands from config file are executed !!!

What is the root cause and how to fix it?

over 2 years ago

0 Prashant Shivhare over 2 years ago

TI__Guru 71911 points

Hi Tushant,

Let's discuss briefly how UART Uniflash receives and flash the image to the flash media. It is as follows:

Receive the image over UART.
Store the received image raw data in the DDR buffer.
Verify if the image is of Appimage type by comparing the Appimage file's magic word (0x46554C42 # BLUF).
If correct magic word, flash the raw data to the flash media.
Verify the image after flashing.

I would suspect that the DDR is somehow, after the second stage, not reflecting the correct image data which leads to a mismatch in the header. So, before flashing you would want to verify that the DDR is properly initialized and the read/writes are happening correctly.

Regards,

Prashant

0 Prashant Shivhare over 2 years ago in reply to Prashant Shivhare

TI__Guru 71911 points

Hi Tushant,

Please let me know if the issue is solved!

0 Tushant Tushant over 2 years ago

Prodigy 80 points

Hello Prashant,

I am really sorry for late reply.

Actually I was on vacation.

How to check whether DDR is initialized correctly.
In this thread(below), you have mentioned to change the DDR configuration file.
https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1241856/phytc-3p-kit-am64-working-with-a53-core/4731045?tisearch=e2e-sitesearch&keymatch=am64#4731045

Do i need to do these steps.I so, please guide me bit.

0 Prashant Shivhare over 2 years ago in reply to Tushant Tushant

TI__Guru 71911 points

Hi Tushant,

If you are working with custom DDR then yes you do need to integrate the correct DDR configurations in the DDR driver. Once it is integrated, you can initialize the board with MCU+ SDK which does DDR initialization and try writing to DDR from CCS or any debugger connected to the board.

---

You may also follow this response

https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1264559/am6442-use-the-uart_uniflash-tool-to-flash-the-sbl_null-program-to-qspi-flash-and-report-an-error/4788625#4788625

to keep the DDR out of the picture while flashing. This should resolve the magic number issue.

Regards,

Prashant

0 Tushant Tushant over 2 years ago in reply to Prashant Shivhare

Prodigy 80 points

When i changed the linker file and main.c of sbl_uart_uniflash then this issue is resolved.

But still i didn't tried changing DDR configuration.

I will update this after trying that.

0 Tushant Tushant over 2 years ago in reply to Tushant Tushant

Prodigy 80 points

I tried using after changing DDR configuration and it worked without any issues.
thanks for the help.

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PHYTC-3P-KIT-AM64: Flashing using UART uniflash tool is failing