Tool/software:
There is a code error in the MMCSD_lld_xferCompleteStatusPoll function, which causes object->xferErrorStat to remain 0 all the time.
object->xferErrorStat is uint16_t,and (intrStatus & 0xFFFF0000U) the valid value is in the high 16 bits.This leads to the fact that the judgment results are always successful.