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在基于ARMCortex-M3内核的STM32F103xx系列微处理器芯片开发板STM32-SK上扩展一个收音机模块.硬件部分利用RDA5800C调频芯片及其外围电路组成收音机模块,用接插件与开发板相连,通过I2C总线实现通信.软件部分采用第三方开发工具KeilMDK控制协调MCU和调频芯片以实现FM调频和音量调节功能,并用LED灯指示.此模块功耗低且可电池供电,在便携式产品上有很好的应用前景.“,”Based on the ARM Cortex-M3 core of the family of MCU STM32F103xx ,the STM32-SK development board extends a radio module. This module is composed with the RDA5800C chip and its peripheral circuits which is connected to the development board by I2C bus .The software development platform is Keil MDK, which use to achieve the coordination of FM chip and MCU, and also achieve the function of seek , tune, volume, and show it by LED lights. The module's low-power characteristics, as well as can be battery-powered, makes it a very good prospect in portable products.