Software Design Of Vehicle MP3 Player With FM Transmitting

With the rapid development of numeric information technology and network technology,it is brought forward that the automatization and intelligentization of car,while the car player will be also reformed as an important part of car.With the incessant increase of automotive electronic products’ proportion in the entire vehicle,the automobile computerize service is gradually becoming one of main markers of the development of the modern automobiles,vehicle information entertainment system will become one of the most attractive areas and fastest growing fields of automotive electronics.Chinese car entertainment market has been developing quickly and with lower costs,more sophisticated technology and production’s increasing,portable consumer electronic products will maintain a sustained growth,the demand of vehicle digital audio solutions will also increase.According to the problems of current embedded vehicle MP3 system’s cost, this paper persents a software solution scheme of embedded vehicle MP3 system, The system is based on ARM processor,embedded withμC/OS-Ⅱoperating system and can read MP3 songs from portable U disk,SD card,and other mobile devices,then users can listen to the pleasant music from sound equipment through adjusting radio frequencies in the car after FM transmitting of the RF transmitter module.The scheme of embeddedμC/OS-Ⅱoperating system in this design not only make the whole system of real-time performance and stability improved,but also make system’s upgrade convenient.SD card interface and USB interface are designed in the system,users can access SD card and U disk,a variety of interfaces’access has come true in the system;the cost of hardware is reduced due to using the scheme of MP3 software decoding on the premise of ensuring music’s quality.It can be seen that the system designed in this paper meet the market demand of electronic products in future and it has very broad prospects for development.