基于单片机AT89S52的 万年历+秒表+闹钟程序C语言程序-Calendar+ stopwatch+ alarm clock program

用MSP430单片机通过音频接口与iphone手机进行通讯的程序，包括原理图，msp430固件源码，iphone手机端3个例程源码-Using MSP430 microcontroller through the audio interface and iPhone mobile communication procedures, including schematics, MSP430 firmware source code, iPhone mobile terminal 3 source