winIDEA HelpHSM Debugging
The HSM (Hardware Security Module) is an optional module available on selected Aurix devices.
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Read your Aurix device reference manual carefully. Use caution when debugging the HSM core as programming/erasing the HSM reserved FLASH sectors may result in locking the device. winIDEA offers few options which help you reducing the risk locking the device. |
The HSM protection is configured in the User Configuration Block (UCB). Writing to UCB in winIDEA is disabled by default. UCBs serve as vital repositories of critical settings and configurations that drive the behavior and functionality of SoC features. They play a pivotal role in ensuring unmatched configurability.UCBs allow developers to define and configure crucial settings such as:
•Reset vector
•RAM initialization
•Hardware Security Module (HSM) configuration
•Logic Built-In Self-Test (LBIST)
•FLASH protection
•etc.
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Wrong UCB data can lock the device permanently. Use winIDEA Demo Mode prior flash programming to test whether all UCB sectors contain correct data. Number of writes to UCB is limited. Refer to your TriCore device documentation for the exact number of writes. Uncheck <UCB_device> box once UCB is programmed. |
Through winIDEA, you can program an HSM application and configure the UCB (User Configuration Block) which is required to enable the HSM on your Aurix device.
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It is recommended to use Image checker during UCB or HSM code programming. HSM application programming and UCB configuration requires caution because a misconfiguration can potentially lock your chip. |
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Enable UCB via Hardware / Options / Programming. |
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Make sure Automatically observe this core via Hardware / CPU Options / Cores HSM is checked. |
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Open the secondary winIDEA instance via Debug / Core / HSM. |
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Connect to the primary winIDEA instance via Debug / Connect. |
When connected the Debug Status winIDEA is:
•Primary: [CPU0] STOP
•Secondary: [HSM] STOP
Next steps
•Infineon TriCore AURIX TC3xx HSM - Debug & Timing Analysis - Webinar (Instrumenting HSM code and trace using MCDS data trace, Sampling-based Profiling)
