TMS320F28xx异步串口通信的研究与实现

Study and Implementation of TMS320F28xx Synchronous Serial Communication

为了监控DSP控制器的运行状态,DSP控制器和监控设备之间进行实时、可靠的通信是很重要的。重点阐述了TI公司的TMS320F28xx芯片及其串口的特点和利用SCI模块实现其内部CPU与异步外设之间串行通信原理,详细描述了SCI模块的寄存器组和两大加强特性。结合以TMS320F2812为核心的DSP励磁控制器和LCD文本显示器通信的实例,给出了异步串行通信的硬件原理图软件程序。实验结果表明,该方法数据传输可靠、实时性好,有广泛的应用前景。

For supervision and control the running state of DSP controller,the real-time and reliable communication between the DSP controller and the supering device is very important.Aiming at TMS320F28xx of TI company,the characteristics of its serial and the communication principle between internal CPU and the synchronous peripheral equipments are primarily introduced.The register group of SCI and its two enhanced properties are detailedly dscripted.Combined with the example of the communication between the DSP ex...