Introduction - If you have any usage issues, please Google them yourself
FM1702SL RF chip external bus interface for the SPI mode of operation of the FM1702 is actually through the SPI bus of the relevant internal FM1702SL register read and write operations, in order to achieve radio frequency read/write card. The driver is based on the preparation of FM2306A (PIC instruction set compatible with other MCU also tested), through the IO port SPI bus timing simulation software.