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Infineon TriCore: SCR Debugging

21-Jul-2021

Standby Controller (SCR) is an 8-bit microcontroller that can continue to run during the standby mode. It is based on the XC800 Core that is compatible with the industry standard 8051 processor and is available on selected TC3xxx devices. SCR core is selectable in winIDEA as any other core.


SCR debugging can be achieved via:


SoC DAP port

Works with BlueBox debuggers:

  • iC5700 via DTM
  • iC5700 with an Infineon DAP/DAPE Active Probe
  • iC5000

You can't debug the SCR core via the main cores via SoC DAP port in a low power mode. 


Private DAP connector (SCR DAP)

Works with BlueBox debugger iC5000 via DTM and the max DAP frequency (10MHz).

In the standby mode you can debug the SCR core ONLY with iC5000 and via Private DAP.


If the debugger is connected via DTM, ordinary DAP Debug Adapter (iC50164) can be used. Debugging via SoC DAP works also at higher DAP clocks and is not limited to 10MHz and requires only one debugger.


Enabling the SCR core

Before you can start debugging the SCR core via SoC DAP or as the primary core via Private DAP interface, chip must be properly enabled and configured. 


More resources:

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