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Hard fault handler

Istillaga
Associate III

Hello,

I am using the STM32U575ZIT6 microcontroller and enabling the TrustZone option. When executing projects, the HardFault handler triggers when switching to the non-secure zone, displaying the message "No source available for <signal handler called>() at 0xffffffa9". This also happens when running a blank project. Do you have any solutions?

1 ACCEPTED SOLUTION

Accepted Solutions
Istillaga
Associate III

Hello,

I have managed to resolve the issue. The error was that the values of AttributeConfig.MPCBB_SecConfig_array when initializing GTZC were set to 0xFFFFFFFF when they should have been 0x00000000.

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1 REPLY 1
Istillaga
Associate III

Hello,

I have managed to resolve the issue. The error was that the values of AttributeConfig.MPCBB_SecConfig_array when initializing GTZC were set to 0xFFFFFFFF when they should have been 0x00000000.