TMDXIDK5728: LCD remains black

Hello Biser,

I am trying to boot the software on the SD card that came with the development kit pre-loaded.

Unfortunately I have done the same steps as they have and have had no results. Also in those two thread there is still no resolution to their problems. I have reset the cables multiple times.

Thanks!

Archer,

E2E threads that help debug hardware or software issues are often left without closure.  The customer having the difficulty often finds the issue and then does not continue posting to the thread.  We very much appreciate when they do post the final resolution found.

The other 2 threads contain several recommendations for debugging.  You need to go through these steps and report the same information.  Please post the complete Linux boot log.  Also, do you get any output on the HDMI display?

Tom

Thank you manisha. Unfortunately this did not help. It has something to do with a software issue that came with the dev kit. Still trying to find the solution.

Tom,

Thank you and I appreciate the response.

I think one of the reasons why customers stop posting is there is no good way to keep track of the posts they have made. E.x the only way I found this post again was after Manisha posted to the post and it alerted me. In my account my activity is broken at times and only shows my last posting. Also in my account there is no way for me to see a list of the current posts I have opened. With this setup I don't think TI should have any expectation of the ability for someone to effectively be able to track their open posts/threads. This is unfortunate as it makes everyones job harder, yours trying to get solutions to customers and mine trying to work effectively.

I have written this to customer support but they don't really care, also the forum is broken in the chrome browser but that's a whole different story they don't care about either.

On the LCD matter I did do the things in the post and replied to Biser. The key here is I am booting the SD that came with the EVM and the process hangs during the LCD test and the LCD doesn't light up or respond. I don't get a boot log output on the terminal. all I get is this:

**** PDK SBL ****
**** Copying Application Image to DDR ****

SD Boot - file open completed successfully
Jumping to MPU CPU0 Application...


Opening framework from SD card...
Loading framework into memory...
Running framework

DIAGNOSTIC TEST FRAMEWORK
Command options:
help - displays this help menu again
run - run a diagnostic application
status - prints the test status
[Diag Menu]: run
Diagnostic Test Status:
--------------------------------------------------------------
ID Name Pass # of times Ran
1 haptics_TEST No 0
2 lcdTouchscreen_TEST No 0
3 led_TEST No 0
4 ledIndustrial_TEST No 0
5 mcspi_TEST No 0
6 mem_TEST No 0
7 mmcsd_TEST No 0
8 pmic_TEST No 0
9 qspi_TEST No 0
10 uart_TEST No 0
11 dcan_TEST No 0
12 eeprom_TEST No 0
13 emmc_TEST No 0

Select test number (1 - 13): 3
Parsing led_TEST
Running led_TEST

*********************************************
* LED Test *
*********************************************

Testing LED
Blinking LEDs...
Press 'y' to verify pass, 'r' to blink again,
or any other character to indicate failure: r

Blinking again
Press 'y' to verify pass, 'r' to blink again,
or any other character to indicate failure: y
Received: y

Test PASSED!
Finished running led_TEST, result passed!
[Diag Menu]: run
Diagnostic Test Status:
--------------------------------------------------------------
ID Name Pass # of times Ran
1 haptics_TEST No 0
2 lcdTouchscreen_TEST No 0
3 led_TEST Yes 1
4 ledIndustrial_TEST No 0
5 mcspi_TEST No 0
6 mem_TEST No 0
7 mmcsd_TEST No 0
8 pmic_TEST No 0
9 qspi_TEST No 0
10 uart_TEST No 0
11 dcan_TEST No 0
12 eeprom_TEST No 0
13 emmc_TEST No 0

Select test number (1 - 13): 2
Parsing lcdTouchscreen_TEST
Running lcdTouchscreen_TEST

*********************************************
* Touchscreen Test *
*********************************************

Which version of PSDK are you using? Is it Linux or RTOS SDK? 

I can comment on PLSDK (Processors Linux SDK). If you are using RTOS, I can share your post with RTOS software expert for his comment.

With PLSDK, there is no issues with the software. Right dtb file is picked up at the boot time and no manual configuration or any other changes required to use LCD. Only improper LCD or touch cable connections can cause LCD not to boot. You can try flashing the SD card with latest revision of the software that can be downloaded from here - 

software-dl.ti.com/.../index_FDS.html

software-dl.ti.com/.../index_FDS.html

Archer said:

Tom,
I think one of the reasons why customers stop posting is there is no good way to keep track of the posts they have made. E.x the only way I found this post again was after Manisha posted to the post and it alerted me. In my account my activity is broken at times and only shows my last posting. Also in my account there is no way for me to see a list of the current posts I have opened. With this setup I don't think TI should have any expectation of the ability for someone to effectively be able to track their open posts/threads. This is unfortunate as it makes everyones job harder, yours trying to get solutions to customers and mine trying to work effectively.

I have written this to customer support but they don't really care, also the forum is broken in the chrome browser but that's a whole different story they don't care about either.

Hello Archer,

Thank you for providing direct feedback on E2E. TI is actively working on improving the overall experience within E2E over the next several quarters. I've recorded your feedback and will route it to the proper team. Please feel free to share any other feedback you have about E2E at:  

Regards,

Omar Barron