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AM5728 EVM Eeprom and weston program Question.

Cheon youngsu
Prodigy 70 points

Other Parts Discussed in Thread: AM5728

Hi.


I have a question about AM5728.

1) I would like to receive eeprom data from Sitara am5789's EVM KIT. However,

     I would like to receive the data with DDR memory set to 4K in eeprom data. Is this possible?

     And I want to know how to change the DDR memory settings in the Device tree.

2)  Questions about Weston program related errors.

     
    When disconnecting HDMI cable, Weston program will be closed once every 5 ~ 6 times.

    I can not confirm for any reason. The circuit part is used as the EVM KIT of the AM5728, and the same symptom occurs on the AM5728 EVM KIT.

    Is it possible to check? Have any of these issues occurred in other companies?

Please help me.

Thank you.

  • 0
    TI__Guru**** 161600 points
    Hi,

    I would like to receive the data with DDR memory set to 4K in eeprom data. Is this possible?

    I don't quite understand, what do you mean by receive the data with DDR memory set to 4K in eeprom data, could you elaborate? Do you mean that you'd like to read the eeprom & store the values in DDR memory location?

    And I want to know how to change the DDR memory settings in the Device tree.

    This is done in u-boot:
    arch/arm/cpu/armv7/omap5/emif.c
    arch/arm/cpu/armv7/omap5/sdram.c
    board/ti/am57xx/board.c

    When disconnecting HDMI cable, Weston program will be closed once every 5 ~ 6 times.

    I can not confirm for any reason. The circuit part is used as the EVM KIT of the AM5728, and the same symptom occurs on the AM5728 EVM KIT.

    Is it possible to check? Have any of these issues occurred in other companies?


    I haven't come across such error. AM572x EVM is designed to use the LCD as a primary display & the HDMI as a secondary display.
    Can you try running weston on all connected displays:
    weston -tty1

    Best Regards,
    Yordan
  • 0 in reply to Yordan Kovachev
    Prodigy 70 points
    Hi. Yordan

    Thank you for your reply.

    Questions 1)

    Is the DDR memory capacity in the eeprom data not defined?

    The problem now is that when I boot, I use 4Kbyte of DDR3 memory, but it is recognized as 2Kbyte.

    And we want to receive the Eeprom data used in EVM KIT.

    Is there any way to defeat the data of DDR memory capacity among Eeprom's data?

    Questions 2)

    It was designed to use external monitor using HDMI output.

    However, when the HDMI cable is unplugged five or six times, the Weston program is terminated about once.

    We also confirmed that the same problem occurs in EVM KIT.

    Is it possible to check this part?

    Thank you.