| 基于TMS320DM6437的McBSP与EDMA实现串口通信 |
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| 引用本文： | 屈姗姗,夏威,何子述. 基于TMS320DM6437的McBSP与EDMA实现串口通信[J]. 国外电子元器件, 2010, 0(12): 17-20 |
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| 作者姓名： | 屈姗姗 夏威 何子述 |
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| 作者单位： | 电子科技大学电子工程学院,四川成都611731 |
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| 摘 要： | 针对DSPTMS320DM6437，为了实现FPGA和DSP间的串口通信，采用了其同步多通道缓冲串行口（McBSP）和增强型直接存储器存取（EDMA）。软件程序设计未使用传统的芯片支持库，而是采用McBSPDriver和EDMALLD，实现了FPGA和DSP数据的连续双向传输，并且DSP作为接收方时采用乒乓缓存，防止数据丢失，同时利用DSP／BIOS实现了EDMA中断，可对收到的数据进行处理，保证了实时性和数据传输效率。
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| 关 键 词： | TMS320DM6437 多通道缓冲串行口（McBSP） 增强型直接存储器存取（EDMA） EDMA LLD |
Implementation of serial communication on the TMS320DM6437 with McBSP and EDMA |
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| QU Shan-shan,XIA Wei,HE Zi-shu. Implementation of serial communication on the TMS320DM6437 with McBSP and EDMA[J]. International Electronic Elements, 2010, 0(12): 17-20 |
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| Authors: | QU Shan-shan XIA Wei HE Zi-shu |
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| Affiliation: | (School of Electronic Engineering, University of Electronie Science and Technology of China, Chengdu 611731, China) |
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| Abstract: | With the TMS320DM6437, this paper discusses the implementation of serial communication based on the chip multi-channel buffered serial port （McBSP） and enhanced direct memory access （EDMA）.While the software part uses the McBSP Driver and EDMA low level lriver driver （EDMA LLD） for development instead of using traditional CSL. Finally, it realized the Ping/Pong structure and full-duplex continuous data stream transmission between FPGA and DSP, while using the DSP/BIOS realizes EDMA interrupt ,which helps processing the received data. It meets the real-time requirement and the efficiency of data transfer. |
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| Keywords: | TMS320DM6437 Multi-channel Buffered Serial Port（McBSP） Enhanced Direct Memary Access（EDMA） EDMA LLD |
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