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debug bare metal software on the Raspberry Pi 4 using Arm develop stdui by dstream

danny2022

i use ARM develop studio 2021.2,  debug by dstream. 

when i connect the rasperry PI4 .  it report this error message:

Unable to stop device Cortex-A72_0
Cannot attain state requested.
Unable to stop device Cortex-A72_0

config.txt

[pi4]
kernel=loop.bin

[all]
arm_64bit=1 #enable 64bit image
enable_uart=1 #enable pl uart
uart_2ndstage=1 #enable FW debug info

enable_jtag_gpio=1
gpio=22-27=a4
init_uart_clock=48000000
init_uart_baud=115200
#kernel_old=1 # if we set it, the image will be load at 0x0, otherwise the 64bit image will be load on 0x80000
#disable_commandline_tags=1 #Fix me, when set it, the image will be load on 0x0 ?

Parents
  • 0 in reply to Stephen Theobald

    hi Stephen:


    thanks you very much

    1. I have selected the configdb for Rasperrby Pi4

    2. my config.txt contains  arm_64bit=1 and enable_jtag_gpio=1, because my code is running at 0x8000, so i do not cantains kernel_old=1 and disable_commandline_tags=1

    3. I put my program in that raspberry pi and it works

    4、I use openocd and jlink on ubuntu is debuggable

Reply
  • 0 in reply to Stephen Theobald

    hi Stephen:


    thanks you very much

    1. I have selected the configdb for Rasperrby Pi4

    2. my config.txt contains  arm_64bit=1 and enable_jtag_gpio=1, because my code is running at 0x8000, so i do not cantains kernel_old=1 and disable_commandline_tags=1

    3. I put my program in that raspberry pi and it works

    4、I use openocd and jlink on ubuntu is debuggable

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