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i.MXRT1050 flash mode config sequence

Question asked by Noah Wang on Jun 4, 2018
Latest reply on Jun 6, 2018 by Noah Wang

Hi all,

 

I'm working with the RT1050 and the flash configuration in the SDK example provides the following struct for use with configCmdEnable:

typedef struct _lut_sequence
{
   uint8_t seqNum; //!< Sequence Number, valid number: 1-16
   uint8_t seqId; //!< Sequence Index, valid number: 0-15
   uint16_t reserved;
} flexspi_lut_seq_t;

I understand that seqId is set to the index of the LUT where the mode configuration sequence has been defined. I would like to know what seqNum is used for, changing it seems to have an effect on whether booting works or not (seems to work with seqNum = 1) but I have been unable to figure out what it does.

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