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two JTAG devices in the chain???

Herbert Hauser
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Hi,

I'm starting with the STM32F103 cortex processor.

When I take a look into the options-for-target > debug > Ulink Cortex Debugger, there are two JTAG devices (ARM CoreSight JTAG-DP and Unknown JTAG device). Is this normal?

best regards
Herbert

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    Yes, this is normal.

    STM32Fxxx devices have two JTAG TAPs: Cortex-M3 TAP and Boundary Scan TAP

    Details are in the STM32 Reference Manual.

    Anyway for debug/trace (and flashing) only the Cortex-M3 TAP is relevant.

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    Yes, this is normal.

    STM32Fxxx devices have two JTAG TAPs: Cortex-M3 TAP and Boundary Scan TAP

    Details are in the STM32 Reference Manual.

    Anyway for debug/trace (and flashing) only the Cortex-M3 TAP is relevant.

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