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Can DSTREAM-ST with DS2021 Debug cortex_a55 board?

Charlie

Dear arm experts,

I try to debug my baremetel code on cortex_a55 boards(RK3568 SoC) with DS2021. When using DStream ST to connect the board, I encountered an error message: 'Failed to power up ARMCS-DP'.

How can I solve this problem? Do I need to update the version DS to obtain support for the Cortex-a55 boards?


Looking forward to your reply.

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  • 0 Arm Employee Badge in reply to Charlie

    Hi again

    Thanks for checking your SoC manual.  Yes, it looks like the SoC supports both SWD and JTAG debug connections.

    I still believe the most likely cause of the problem is that the ARMCS-DP is powered-down.  It is quite common for this to be controlled by a power-control subsystem, which needs to be activated first.

    Take a look at the RK3568 TRM, Chapter 7 Power Management Unit (PMU)

    Stephen

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  • 0 Arm Employee Badge in reply to Charlie

    Hi again

    Thanks for checking your SoC manual.  Yes, it looks like the SoC supports both SWD and JTAG debug connections.

    I still believe the most likely cause of the problem is that the ARMCS-DP is powered-down.  It is quite common for this to be controlled by a power-control subsystem, which needs to be activated first.

    Take a look at the RK3568 TRM, Chapter 7 Power Management Unit (PMU)

    Stephen

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