The technology in memory mapping and double buffering is also used. Finally,the system gains a good performance in data transferring on PCI bus.

 
  • 以DM642作為PCI主設備控制并啟動(dòng)DMA數據傳輸,給出了主DMA模式下數據傳輸系統的實(shí)現結構及工作流程,并配合內存映射、雙緩沖等方法,取得了良好的數據傳輸性能。
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