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AM5728: How to change pinmux setting for am5728 in sysbios

Ramachandran V
Prodigy 130 points
Part Number: AM5728
Other Parts Discussed in Thread: SYSCONFIG

Tool/software:

Hi

Iam  currently working on am5728 .

I have downloaded the Rtos SDK.The package comes with example for the evaluation boards,

but my custom board has different pinout where GPMC is enabled .

I found out Pinmux setting can be generated using SYSconfig tool but i dont know how to change the existing pinmux settings

  • 0
    TI__Expert 6690 points

    Hi,

    Ramachandran V said:
    I found out Pinmux setting can be generated using SYSconfig tool but i dont know how to change the existing pinmux settings

    Could you please refer the <pdk>/processor_sdk_rtos_am57xx_09_02_00_00/pdk_am57xx_1_0_21/packages/ti/board/src/idkAM572x/idkAM572x_pinmux.c file for pinmux settings.

    Regards,

    Karthik

  • 0 in reply to Karthikeyan S
    Prodigy 130 points

    Thanks Iam currently looking into it idkAM572x_pinmux.c

    is there any specific document for changing the pinmux and rebuilding the MLO

    because I believe MLO does every pinmux initialization,clock initialization,DDR initialization and then it transfer the control to application which is the app file

    and als i believe the app cannot do any pinmux changes

  • 0 in reply to Ramachandran V
    TI__Expert 6690 points

    Hi,

    Ramachandran V said:

    is there any specific document for changing the pinmux and rebuilding the MLO

    Please refer the MLO Build procedure:

    MLO Build Procedure for AM572xx idk

step1:
<sdk>/processor_sdk_rtos_am57xx_09_02_00_00/pdk_am57xx_1_0_21/packages
source pdksetupenv.sh
step 2:
<sdk>/processor_sdk_rtos_am57xx_09_02_00_00/pdk_am57xx_1_0_21/packages/ti/boot/sbl
make BOARD=idkAM572x SOC=AM572x BOOTMODE=mmcsd clean
make BOARD=idkAM572x SOC=AM572x BOOTMODE=mmcsd

    Regards,

    Karthik

  • 0 in reply to Karthikeyan S
    Prodigy 130 points

    Hi 

    Thanks for ur help MR.Karthick

     i tried changing the pinmux files which was generated by the pinmux tool in the location("/home/ram/processor_sdk_rtos_am57xx_09_02_00_00/pdk_am57xx_1_0_21/packages/ti/board/src/evmAM572x") and treied to rebuild the SBL but changes made in the files which are in board files does not affect the SBL

    Should i have to rebuild the Board library,because i found the board library is automatically linked while building the SBL

    is there any steps involved in rebuilding the board library

  • +1 in reply to Ramachandran V
    Prodigy 130 points

    Hi Mr.Karthick

     I tried multiple times in different pc having Windows ,linux and finally it got built in one linux Pc ,the changes made in the board files does change the board library when its rebuilt

    now my gpmc pins are configured default

    i can see that pins configuration ,when i try to to run the Mlo through JTAG  

    Thanks,