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Raspberry PI 3 DSTREAM JTAG debugging

yarrro

I have trouble with RPi-3 bare metal debugging. I use DSTREAM unit with DS-5 (upgraded, the latest version).

1. U-boot was added a startup code that sets up GPIO pins to support JTAG connection

2. DS-5 properly does boundary scanning, result is similar to https://community.arm.com/tools/f/discussions/5908/ds-5-and-raspberry-pi-2. CPUs are properly detected, no error is reported. Startup code does the job, as without it the boundary scan fails.

3. When I try to connect to the target, I get this error message:

Unable to connect to device Cortex-A53_0

An unknown error was received.

Unable to connect to device Cortex-A53_0

DS-5 documentation says it support RPi-3. What do I miss?

Thank you for your help,

Jarek.

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  • +1 Arm Employee Badge in reply to yarrro

    Ah, the problem is that you are using the Professional Edition.

    This does not have the support for Arm v8-A processors such as the Cortex-A53. That's why you can see the RPi-2 but not the RPi-3.

    Support for Arm v8-A processors such as the Cortex-A53 is included within the DS-5 Ultimate edition.

    You can see more about the DS-5 editions at https://developer.arm.com/products/software-development-tools/ds-5-development-studio/editions

    To check if you have access to the Ultimate Edition, you could try try it and see ?

    Go 'Help' -> 'Arm License Manager' and then at the bottom change the toolkit in use to be 'DS-5 Ultimate Edition' and then close, and see what happens.

    If you have a floating license server then you might be able to get an Ultimate license if one is available ?

    Then re-test and see if that makes any change ?

    Regardless, the error reporting should be a lot better, I would have expected some error to be fed back to you when you try to connect.

    I'll do some investigating on my side to see what is going on.

    Regards,

    Stuart

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  • +1 Arm Employee Badge in reply to yarrro

    Ah, the problem is that you are using the Professional Edition.

    This does not have the support for Arm v8-A processors such as the Cortex-A53. That's why you can see the RPi-2 but not the RPi-3.

    Support for Arm v8-A processors such as the Cortex-A53 is included within the DS-5 Ultimate edition.

    You can see more about the DS-5 editions at https://developer.arm.com/products/software-development-tools/ds-5-development-studio/editions

    To check if you have access to the Ultimate Edition, you could try try it and see ?

    Go 'Help' -> 'Arm License Manager' and then at the bottom change the toolkit in use to be 'DS-5 Ultimate Edition' and then close, and see what happens.

    If you have a floating license server then you might be able to get an Ultimate license if one is available ?

    Then re-test and see if that makes any change ?

    Regardless, the error reporting should be a lot better, I would have expected some error to be fed back to you when you try to connect.

    I'll do some investigating on my side to see what is going on.

    Regards,

    Stuart

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