how to recover CAN bus in Busoff state for mxrt1050 evkb

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how to recover CAN bus in Busoff state for mxrt1050 evkb

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Maheshkadam9922
Contributor II

we need to implement the logic of busoff recovery of mxrt1050 evk board. so how we recover the the CAN bus in the busoff state.

BOFF_REC 6 th bit is available in FLEXCANx_CTRL1 register

1 Automatic recovering from Bus Off state disabled
0 Automatic recovering from Bus Off state enabled, according to CAN Spec 2.0 part B

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Miguel04
NXP TechSupport
NXP TechSupport

Hi @Maheshkadam9922 

If you negate this bit the FLEXCAN module will do the recovery automatically. If this bitt is enabled, the busoff state will not be cleared untill the user negates it.

Best Regards, Miguel.

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