I'm experiencing an issue with the BLE_p2pServer example where CPU2 seems to fail to boot properly. Environment:
Board: STM32WB5MM-DK
IDE: STM32CubeIDE (latest version)
STM32CubeProgrammer for flashing wireless stack
Example: BLE_p2pServer from STM32CubeMX, imported to CubeIDE from .ioc
Details: The application crashes during CPU2 boot sequence, specifically at LL_PWR_EnableBootC2(). UART debug prints show the execution stops during this operation:
hw_ipcc.c:
void HW_IPCC_Enable( void )
{
__SEV(); /* Set internal event flag and send event to CPU2 */
__WFE(); /* Clear internal event flag */
Debug_Print(">LL_PWR_EnableBootC2\r\n");
LL_PWR_EnableBootC2(); // Crashes here
Debug_Print("<LL_PWR_EnableBootC2\r\n");
...
Serial output shows:
>LL_PWR_EnableBootC2
<LL_PWR_En[SERIAL/DIRECT] INFO: DISCONNECTED
registers.png shows that PC is on default handler infinite loop after unexpected interrupt.
What could cause this type of behavior?
