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Hard fault STM32F3

Question asked by Raweeck on Aug 5, 2013
Latest reply on Aug 6, 2013 by Clive One
am using UART communication between 2 boards contaning STM32F3, the first send the same frame every 320 ms, and the second just receive this and make autobaud.
after 2 minutes of working my MCU go into HARD-FAULT-HANDLER !
i don't undestand why !
(HARD_FAULT_STAT = 0x40000000)