KE18F Single Bit ECC Interrupt/Reporting

[sean_dvorscak]

The KE18F has a mechanism in the FTFE module to generate an interrupt for double bit errors using the FTFE_FERSTAT[DFDIF].

Is there something similar for reporting single bit errors?

Would doing a margin read fill the role of determining single bit errors?

[jingpan]

Hi sean,

No, there isn't flag which can report single bit error.

You can use margin read to check flash array. But I doubt if it can pick out single error bit. Since it is on the margin level, the error bit  may jump out randomly. Margin check has a certain pattern, for example, write all zero -> all one -> 0x5555aaaa -> 0xaaaa5555. And then change the margin level and do again. 

Regards,

Jing