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FreeRTOS+FatFS runs to IVOR1 on call of f_write()

Question asked by Jerome Li on Jan 30, 2018

MCU: MPC5748G

IDE: S32DS 2017R1

SDK: MPC574xx_EAR_0.8.2

 

See the screenshot below, when f_write() is called, it runs something to deal with mutex, because FF_FS_REENTRANT is enable by default. But finally it falls into IVOR1, seems like when taskENTER_CRITICAL() is called.

 

What may cause this problem?

 

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