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TMDXIDK5718: LCD Detect Error During Bootup

Chee Beng Ang
Prodigy 80 points
Part Number: TMDXIDK5718
Other Parts Discussed in Thread: AM5718, AM5716,

Hi,

I created a SD card using default images by following the instructions given in this link (https://software-dl.ti.com/processor-sdk-linux/esd/docs/latest/linux/Overview/Processor_SDK_Linux_create_SD_card_script.html#sd-card-using-default-images).

I inserted the SD card in the IDK and boot it up. It got stuck in am57x_idk_lcd_detect error. Below is the responses during boot-up.

----------------------------------------------------------------------------------------------------------------------------------------------------------------------

Welcome to minicom 2.7.1

OPTIONS: I18n
Compiled on Aug 13 2017, 15:25:34.
Port /dev/ttyUSB1, 15:42:44

Press CTRL-A Z for help on special keys


U-Boot SPL 2019.01-g333c3e72d3 (Apr 20 2020 - 04:15:00 +0000)
DRA722-GP ES2.0
no pinctrl state for default mode
Trying to boot from MMC1
no pinctrl state for default mode
Loading Environment from FAT... *** Warning - bad CRC, using default environment

Loading Environment from MMC... *** Warning - bad CRC, using default environment



U-Boot 2019.01-g333c3e72d3 (Apr 20 2020 - 04:15:00 +0000)

CPU  : DRA722-GP ES2.0                                                          
Model: TI AM5718 IDK                                                            
Board: AM571x IDK REV 1.3B                                                      
DRAM:  1 GiB                                                                    
MMC:   OMAP SD/MMC: 0, OMAP SD/MMC: 1                                           
Loading Environment from FAT... *** Warning - bad CRC, using default environment
                                                                                
Loading Environment from MMC... *** Warning - bad CRC, using default environment
                                                                                
am57x_idk_lcd_detect: Failed to get I2C device 0/56 (ret 1)                     
am57x_idk_lcd_detect: Touch screen detect failed: 1!                            
am57x_idk_lcd_detect: Invalid HW configuration: display not detected/supported .
### ERROR ### Please RESET the board ###                                        

------------------------------------------------------------------------------------------------------------------------------------------------

I don't have LCD connected to the IDK. May I know what should I do to change the configurations?

Extending to my question, may I know is the default images good for my own designed board using AM5716? Or do I need to create my own images? If yes, is there any resource can help me, please?

I have a tight schedule to meet. Your kind assistance is appreciated.

Thank you.

CB

  • 0
    TI__Guru**** 164280 points

    Hi CB,

    Chee Beng Ang said:

    I don't have LCD connected to the IDK. May I know what should I do to change the configurations?

    I myself use am574x-IDK with out LCD connected. I do not face the above issue.

    I will get back to you on this.

    Chee Beng Ang said:
    Extending to my question, may I know is the default images good for my own designed board using AM5716? Or do I need to create my own images? If yes, is there any resource can help me, please?

    We are already at u-boot so that clearly tells us default images should be able to boot.

    Can you also confirm the exact part that you are using?

    Best Regards,
    Keerthy

  • 0 in reply to Keerthy J
    Prodigy 80 points

    Hi Keerthy,

    I am using the TMDXIDK5718 EVM.

    I managed to workaround the problem by copying all the files in the in the "boot" partition of the original SD card (labelled as Linux SDK that comes with the EVM) to the SD card I created based on the instructions in the link mentioned in my early post.

    It seems to me there are some differences between the two but I am not sure what.

    Thanks.

    CB