Hi，I am using MFRC522 chip, the program is based on the previous official driver library. But when looking for a card, it succeeds once and fails once, why?
Rc522Init();
while(1)
{
delay_ms(1000);
status = Request(ISO14443_3_REQALL, tmp);
if(status&&status != STATUS_COLLISION_ERROR) printf("not find\r\n");
else printf("find it\r\n");
}
Put the card near the antenna, the result is:
find it
not find
find it
not find
......
