TDA3XEVM: how to use mflash to download sbl and appimage

tim zhao

Intellectual 981 points

Part Number: TDA3XEVM

Hello TI SW Expert

We use custom tda3x board via uart to download sbl and appimage to qspi.

Follow AppNote_mflash.pdf to config flash script and run script, it is failed.

1. my config script is :

   SET sbl_mflash="sbl_mflash_tda3xx-evm"
   SET board="tda3xxevm"
   SET appimage_location="AppImage_BE"
   SET appimage_offset="0x80000"
   SET sbl_location="sbl_qspi_opp_high_ipu1_0_release.tiimage"
   SET sbl_offset="0x00"
   SET uart_port_number="26"
   ECHO %time%
   mflash -S %board% -M %sbl_mflash% -P %uart_port_number% -F %appimage_location% %appimage_offset% -F %sbl_location% %sbl_offset% -C

2. put sbl_qspi_opp_high_ipu1_0_release.tiimage and appimge under packages\ti\boot\sbl_auto\tools\mflash directory

3. From appnote_flash.pdf section APPENDIX: baudrate is 12Mhz

but my board baudrate is 115200：

So My question is whether I need to re-compiler mflash_uart.c to generate mflash.exe?

I refer to the related topics on e2e,eg https://e2e.ti.com/support/processors-group/processors/f/processors-forum/949672/tda3xevm-mflash-incomplete?tisearch=e2e-sitesearch&keymatch=Building%252525252525252520mflash%252525252525252520for%252525252525252520TDA3xx#

https://e2e.ti.com/support/processors-group/processors/f/processors-forum/632697/tda3x-uart-flashing-tool-issue

The qustions still exists, please help us to solve this issue,thanks.

PS: my os is win10 64bit and skd verison is PROCESSOR_SDK_VISION_03_08_00_00.

over 3 years ago

0 tim zhao over 3 years ago

Intellectual 981 points

Hi ,

My Sysboot config sysboot[7:0] is 1 0 0 0 1 0 0 1, sysboot[15:8] is 1 0 1 0 0 0 0 1.

Uart config is as follows:

Please help us to clearly this question,we can't download sbl and appimage via uart3.

0 tim zhao over 3 years ago in reply to tim zhao

Intellectual 981 points

Hi TI team

We changed the sysboot config to be the same as tda3x, but the problem still exists.

0 tim zhao over 3 years ago in reply to tim zhao

Intellectual 981 points

Hi TI

I found mflash does not get handshake signal (Mflash Begins!!).

So it is always enter endless loop ==>MFlash_getString() in mflash_uart.c

I do not know root cause, please provide some suggestions for us,thanks.

0 tim zhao over 3 years ago in reply to tim zhao

Intellectual 981 points

Hi ,

Have any update news for this thread?

0 Stanley Liu over 3 years ago in reply to tim zhao

TI__Guru 50045 points

You don't need to recompile mflash tool run on PC.

However, you do need to update sbl_mflash_tda3xx-evm which runs on TDA3 to communicate with mflash tool and program the flash.

The source is under ~/pdk_xx_xx/packages/ti/boot/sbl_auto/sbl_app/src/mflash.

You will need to update it based on your custom board design.

For examples, the code will run on DDR so you may need to update the EMIF config.

Since this shares the same code for SBL, if you have updated SBL to work on your customer board, you just need to rebuild sbl_mflash for your board.

Please refer to mflash appnote for the build instruction.

Regards,
Stanley

0 tim zhao over 3 years ago in reply to Stanley Liu

Intellectual 981 points

Hi Stanley

Stanley Liu said:
You will need to update it based on your custom board design.

=> 1. Can you tell us which modules need to be changed, such as DDR, QSPI, etc.

2.Could you please help us check our TDA3X schematic diagram? We want to know what needs to be changed for SBL Flash?

TDA3X.rar

0 Stanley Liu over 3 years ago in reply to tim zhao

TI__Guru 50045 points

For SBL, it’s pin mux, DDR, and flash if your flash device is not supported by our flash driver.

0 tim zhao over 3 years ago in reply to Stanley Liu

Intellectual 981 points

Hi,

sbl falsh is loaded into ddr memory or soc ram, i thought it was running in tda3x ram.

0 Stanley Liu over 3 years ago in reply to tim zhao

TI__Guru 50045 points

Yes. SBL is running from internal RAM.

However, it will try to initialize the DDR and load AppImage to the buffer allocated from DDR since the image can't fit in internal RAM.

Regards,
Stanley

0 tim zhao over 3 years ago in reply to Stanley Liu

Intellectual 981 points

Hi Stanley

Under PROCESSOR_SDK_VISION_03_08_00_00\ti_components\drivers\pdk_01_10_04_05\packages\ti\boot\sbl_auto\tools\mflash\ run mflash.exe, The PC side cannot receive the handshake message from SBL MFlash, so the program enters an endless loop .

I have some question to clarify:

1. How to verify that SBL MFlash is correctly loaded into Tda3x SOC RAM?

2. I guess the SBL MFlash(sbl_mflash_tda3xx-evm) might not be running, we added the debug message in the main function entry, but the message was not printed out via uart, so we think the SBL MFlash is not running. sbl has not been initialized yet (clock/power/pin mux, ddr init, qspi init...), so how to verify that sbl mflash has run normally?

sbl_mflash_tda3xx_main.c: add debug msg

0 Stanley Liu over 3 years ago in reply to tim zhao

TI__Guru 50045 points

We use JTAG to debug it in CCS.

While MFlash on PC is waiting for response from SBL Mflash, you can connect JTAG, load the SBL Mflash binary in CCS, and step thru the code to debug the issue.

Regards,
Stanley