Taidacent UART IC Card 4442 Reader RFID Wireless Proximity Module RC522 13.56 MHZ Reader Writer Module
The FM17550 is a highly integrated Transceiver IC for Contactless communication at 13.56MHz. The FM17550 Transceiver IC support Reader/Writer mode compliant with ISO14443/ISO15693 protocol.
Communication interface: UART
Communication rate: less than 10Mbps
Induction distance: standard card is greater than 3cm
Working temperature: -30~85℃
Working humidity: 10%~90%RH
Working voltage: 3~3.6V
Power consumption: less than 80mA/DC3.3V
Peak current: less than 160mA
Operating frequency: 13.56 MHz
Communication rate: 106KBoud
Read and write distance: 0～10cm
Read and write time: 1～2ms
Working temperature: -20℃～55℃
Erase and write life: >100,000 times
Data retention: >10 years
Executive standard: ISO14443A
Initialization
After powering on, necessary initialization operations must be performed first before the module can work normally. Basic
initialization includes the following steps:
A reset operation loads the registers with initial values.
FM175XX_RST=0;
Delay1ms(1);
FM175XX_RST=1;
Delay1ms(1);
In addition to the hard reset method, a soft reset command can also be added.
Write_Reg(CommandReg,SoftReset);
Turn on the antenna.
Set_BitMask(TxControlReg,0x03); //Turn on TX1 and TX2 output
Delay1ms(100);//Delay waiting for the antenna carrier signal to stabilize
In addition, operations such as configuring CRC and timers can be added according to the application.
Application
- Handheld credit card machine
- bus credit card machine
- Canteen credit card machine
- Charge water dispenser
- Other credit card devices
Resources: