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在全数字化高频大功率UPS中,大都采用两片或多片DSP与单片机共同完成较为复杂的控制和监控任务。文中主要就SC I串行通讯接口实现DSP与单片机串行通讯展开讨论,同时给出了利用SPI实现串行通讯的设计方案,分析比较两种通讯方式异同,给出了DSP与单片机串行设计的基本方法。
In the all-digital high-frequency high-power UPS, most of the two or more pieces of DSP and microcontroller together to complete the more complex control and monitoring tasks. In this paper, the SCI serial communication interface to achieve the serial communication between DSP and microcontroller to discuss, at the same time gives the use of SPI to achieve the design of serial communication, analysis and comparison of the similarities and differences between the two communication methods is given DSP and microcontroller serial design The basic method.