// 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_MFRC522(CommIrqReg);
i--;
}
while ((i!=0) && !(n&0x01) && !(n&waitIRq));
ClearBitMask(BitFramingReg, 0x80); // StartSend=0
if (i != 0)
{
if(!(Read_MFRC522(ErrorReg) & 0x1B)) // BufferOvfl Collier CRCErr ProtecolErr
{
status = MI_OK;
if (n & irqEn & 0x01)
{
status = MI_NOTAGERR; // ??
}
if (command == PCD_TRANSCEIVE)
{
n = Read_MFRC522(FIFOLevelReg);
lastBits = Read_MFRC522(ControlReg) & 0x07;
if (lastBits)
{
*backLen = (n-1)*8 + lastBits;
}
else
{
*backLen = n*8;
}
if (n == 0)
{
n = 1;
}
if (n > MAX_LEN)
{
n = MAX_LEN;
}
// Reading the received data in FIFO
for (i=0; i<n; i++)
{
backData[i] = Read_MFRC522(FIFODataReg);
}
}
}
else
{
//printf("~~~ buffer overflow, collerr, crcerr, or protecolerr\r\n");
status = MI_ERR;
}
}
else {
//printf("~~~ request timed out\r\n");
}
return status;
}
i'm Not Detected The RFID Card.
i'm Debug The Code then issue of Code in Highlighted Font.
And My Clock Configuration Is has Below.
My Development Board Is STM32H7A3ZIT6Q.
How Can I Solve This Please Give The Solution??.
Thanks In Advance..
