【摘要】 在无线通信环境下,基于UART接口的无线模块可以释放CPU软硬件资源、使用方便、用途广泛。通过介绍一种廉价的无线模块设计方案,根据n RF24L01封装无线数据包和UART接口速度慢的特点,设计了对UART数据的发送和接收双缓冲器,开发软硬件,实现了可靠的无线数据通信。实验表明无线模块UART接口的可靠通信速率可以达到128 000 b/s,达到预期效果,满足大部分网络化条件下无线通信功能要求。更多还原

【Abstract】 In the wireless communication environment, the wireless module based on UART interface can release the hardware and software resources of CPU. It′ s easy to use,and has a wide range of applications. A low cost scheme to design wireless module is introduced in this paper. According to the encapsulation wireless data packet of n RF24L01 and the slow- speed feature of the UART interface,the double-buffer transmitting and receiving the UART data was designed, the corresponding software and hardware were developed,and the reliable wireless data communication was realized. Experiments show that the wireless module with UART interface achieves the desired effect, which implements a reliable transmission rate of128 000 b/s,and meets the most requirements of wireless communication function.更多还原