// Waiting to receive data to complete
i = 2000; // i according to the clock frequency adjustment, the operator M1 card maximum waiting time 25ms
do
{
// CommIrqReg[7..0]
// Set1 TxIRq RxIRq IdleIRq HiAlerIRq LoAlertIRq ErrIRq TimerIRq
n = Read_MFR...