TDA4VM how to compile & run standalone example Loading through SD Card.

Hi Murphy,

In order to run DSS on DSI output, please follow below steps,

1, Enable DISP_APP_TEST_DSI in ti-processor-sdk-rtos-j721s2-evm-08_00_04_04\pdk_j721s2_08_00_04_09\packages\ti\drv\dss\examples\dss_display_test\dss_display_test.h file.

2, You could change the test params DISP_APP_USE_TEST_PARAMS to DISP_APP_YUV2_2 for DSI output. or can keep same RGB32 input format.

3, Go to pdk_jacinto_08_02_00_21/packages/ti/build folder

4, run "make -s dss_app_utils CORE=mcu2_0 BUILD_PROFILE=release"

5, run "make -s dss_display_testapp_freertos CORE=mcu2_0 BUILD_PROFILE=release"

6, The generated binary would be available pdk_jacinto_08_02_00_21/packages/ti/binary/dss_display_testapp_freertos/bin/j721e_evm/dss_display_testapp_freertos_mcu2_0_release.appimage. Copy this binary as app in the SD card.

7, Copy SBL and TIFS to the SD card

8, Insert the SD card on the Board and boot the board.

Regards,

Brijesh

Hi Brijesh,

Brijesh Jadav said:

In order to run DSS on DSI output, please follow below steps,

The experiment was successful and the log is as follows. 

Note:
EVM UART
1. 4xUART to USB port for Main uarts
    Port0 from this is used this for Linux, RTOS UART terminal from A72
2. 2xUART to USB port MCU domain uarts
    Port0 from this is used for DMSC UART
    Port1 from this is used for MCU R5F UART

< RTOS UART terminal from A72 >
DispApp_init() - DONE !!!
DSS display application started...
Display create complete!!
Starting display ... !!!
Display in progress ... DO NOT HALT !!!
Underflow did not occur
Underflow did not occur
Sync Lost did not occur
Display delete complete!!
Number of frames = 2000, elapsed msec = 33366, fps = 59.94
DispApp_deInit() - DONE !!!
DSS display test Passed!!

Next I will test the DSI, so I made below changes. The main purpose is to measure the waveform of DSI-TX when the image is output. 

But The serial port has no output after power-up. Wonder if it's already started? Or this must be debugging with CCS !!

< Port1 from this is used for MCU R5F UART >
SBL Revision: 01.00.10.01 (Jul 15 2022 - 13:53:42)
TIFS  ver: 21.9.1--v2021.09a (Terrific Lla
SBL Revision: 01.00.10.01 (Jul 15 2022 - 13:53:42)
TIFS  ver: 21.9.1--v2021.09a (Terrific Lla
Sciserver Built On: Feb  2 2022 12:39:09
Starting Sciserver..... PASSED
GTC freq: 200000000

< nothing log on A72 uart >

Regards,

Murphy

Hi Murphy,

Murphy Bevan said:

But The serial port has no output after power-up. Wonder if it's already started? Or this must be debugging with CCS !!

If you are running it on mcu2_0, the output will be on the main domain uart console. Mcu domain uart console will just show messages from SBL. 

By default the output of DSI goes to the UB943 serializer on the EVM. It does not goto DSI-TX output. So please check if the probe point is correct.

Regards,

Brijesh

Hi Brijesh

Murphy Bevan said:

Next I will test the DSI, so I made below changes. The main purpose is to measure the waveform of DSI-TX when the image is output. 

#define DISP_APP_USE_TEST_PARAMS (DISP_APP_YUV2_2)//(DISP_APP_BGRA32_1) zpf

/* Load buffers runtime for RGB24 and YUV formats */
#define DISP_APP_LOAD_BUFFERS_RUNTIME (1U)//(0U) zpf

/**< Enable DSI output, configures DSI for 1280x800 resolution and
* uses LCD AUO display for displaying YUV422 image */
#define DISP_APP_TEST_DSI (1U)//(0U) 

1. But after making changes, main uart shows nothing log.

2. Did you mean UB941 serializer? Probe on UB941 clk & data lane, nothing show on scope.

Rrgards,

Murphy

Hi Murphy,

Any specific reason for enabling input? Because i think input needs to be provided via CCS console and in this case, you are using uart console. 

Can you try disabling this option?

Murphy Bevan said:

2. Did you mean UB941 serializer? Probe on UB941 clk & data lane, nothing show on scope.

Can you please probe the lines when DSS application is running? 

Regards,

Brijesh

Hi Brijesh,

#define DISP_APP_USE_TEST_PARAMS (DISP_APP_YUV2_2)//(DISP_APP_BGRA32_1) 

/* Load buffers runtime for RGB24 and YUV formats */
#define DISP_APP_LOAD_BUFFERS_RUNTIME (1U)//(0U) 

/**< Enable DSI output, configures DSI for 1280x800 resolution and
* uses LCD AUO display for displaying YUV422 image */
#define DISP_APP_TEST_DSI (1U)//(0U) 

The reason why to set these params is to enable DSI-OUTPUT from the point of view of the source file(pdk_jacinto_08_01_00_36\packages\ti\drv\dss\examples\dss_display_test\dss_display_test.c in function DispApp_runTest --> DispApp_configDctrl --> #if (1U == DISP_APP_TEST_DSI) ) and also refer to this link. <e2e.ti.com/.../tda4vmxevm-dsi-pixel-clock-dss_display_test

Brijesh Jadav said:

Can you please probe the lines when DSS application is running? 

After disabling these params, Just leave it as default setting. Recompiled !

Probe on UB941 clk & data-lane, There is no waveform from power-on till the end of DSS application finished(kepe 0V).

DispApp_init() - DONE !!!
DSS display application started...
Display create complete!!
Starting display ... !!!
Display in progress ... DO NOT HALT !!!
Underflow did not occur
Underflow did not occur
Sync Lost did not occur
Display delete complete!!
Number of frames = 2000, elapsed msec = 33366, fps = 59.94
DispApp_deInit() - DONE !!!
DSS display test Passed!!

Regrads,

Muprhy

Murphy Bevan said:

e2e.ti.com/.../tda4vmxevm-dsi-pixel-clock-dss_display_test

Thread-lin: e2e.ti.com/.../tda4vmxevm-dsi-pixel-clock-dss_display_test

Hi Brijesh,

As you suggested & CCS-Debugging for loading image.

Brijesh Jadav said:

In order to run DSS on DSI output, please follow below steps,

1, Enable DISP_APP_TEST_DSI in ti-processor-sdk-rtos-j721s2-evm-08_00_04_04\pdk_j721s2_08_00_04_09\packages\ti\drv\dss\examples\dss_display_test\dss_display_test.h file.

2, You could change the test params DISP_APP_USE_TEST_PARAMS to DISP_APP_YUV2_2 for DSI output. or can keep same RGB32 input format.

3, Go to pdk_jacinto_08_02_00_21/packages/ti/build folder

4, run "make -s dss_app_utils CORE=mcu2_0 BUILD_PROFILE=release"

5, run "make -s dss_display_testapp_freertos CORE=mcu2_0 BUILD_PROFILE=release"

6, The generated binary would be available pdk_jacinto_08_02_00_21/packages/ti/binary/dss_display_testapp_freertos/bin/j721e_evm/dss_display_testapp_freertos_mcu2_0_release.appimage. Copy this binary as app in the SD card.

7, Copy SBL and TIFS to the SD card

8, Insert the SD card on the Board and boot the board.

xxds110 need to update the firmware !!! But XDS110SupportReadMe.pdf said 

How to fix this ?

Regards,

Murphy

Hi Murphy,

Sorry, could not understand. Are you trying to update the xds110 firmware? It should get auto updated, when clicked on on the dialog box..

Also is this again to check the DSI output on EVM? I thought you were able to run this example in vision apps, with smaller resolution, isn't it? Could you please help me understand the intent of this exercise? 

Regards,

Brijesh

Hi Brijesh,

Boot from SD card. log as below. Probe on UB941 DSI-pin clk & data-lane0/1, None of them have a waveform !!!!!

DispApp_init() - DONE !!!
DSS display application started...
src/drv/dctrl/dss_dctrlDsi.c @ Line 318: DSI_register: CSL_MAIN_CTRL_MMR_CFG0_DPHY_TX0_CTRL = 0 , CSL_MAIN_CTRL_MMR_CFG0_DPHY0_CLKSEL = 0
Display create complete!!
Starting display ... !!!
Display in progress ... DO NOT HALT !!!
Underflow did not occur
Sync Lost did not occur
Display delete complete!!
Number of frames = 2000, elapsed msec = 36921, fps = 54.17
DispApp_deInit() - DONE !!!
DSS display test Passed!!

So tried to use CCS-Debug to load a image. Encountered this issue <required to update xds110 firmware>!

In fact, Both Boot From SD Card and debugging on CCS are aimed at one purpose to probe TDA4 DSI output data format Whether it contains the required information<VSA+VBP+VFP>.

Regards,

Murphy

Hi Brijesh,

Here is the DSI-Tx test waveform & log !

Regards,

Murphy

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