说明：  铁电存储器fm3104读写子程序。fm3104是串行256byte、rtc、可编程看门狗集成多功能芯片，例程是用于tms320lf2407芯片。
(fm3104 ferroelectric memory read and write subroutines. Fm3104 is 256 byte Serial, rtc, programmable watchdog integrated multi-function chip, routines for tms320lf2407 chip.)