| ISP1581 DMA方式的实现 |
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| 引用本文： | 刘如民, 史小军, 朱为, 堵国梁,. ISP1581 DMA方式的实现[J]. 电子器件, 2006, 29(2): 595-597 |
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| 作者姓名： | 刘如民 史小军 朱为 堵国梁 |
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| 作者单位： | 东南大学电子工程系,南京,210096 |
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| 摘 要： | 系统阐述了ISP1581的硬件连接、固件编程和DMA队接口控制方法，通过关键寄存器设置以及精确地时序逻辑控制,找到了提高该接口芯片数据传输速度的软硬件途径，使ISP1581达到了其最高传输速度25．6Mbyt／s，在安检设备中达到了令人非常满意的效果。
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| 关 键 词： | ISP1581 DMA（direct memory access） |
| 文章编号： | 1005-9490（2006）02-0595-03 |
| 收稿时间： | 2005-10-25 |
| 修稿时间： | 2005-10-25 |
Implementation of DMA Mode for ISP1581 |
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| LIU Ru-min,SHI Xiao-jun,ZHU Wei,DU Guo-liang. Implementation of DMA Mode for ISP1581[J]. Journal of Electron Devices, 2006, 29(2): 595-597 |
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| Authors: | LIU Ru-min SHI Xiao-jun ZHU Wei DU Guo-liang |
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| Affiliation: | Department of Electronic Engineering, Southeast University, Nanjing 210096,China |
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| Abstract: | That hardware is how to be connected and firmware is how to be programmed and DMA interface is how to be controlled under the DMA mode of ISP1581 are introduced. The way how to improve the data transferring rate of this device is proposed by setting key registers and controlling exactly timing logic. As a result, ISP1581 achieves its max data transferring rate about 25.6 Mbyte/s, and it also has been proved to be satisfying in the application of security inspection equipment. |
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| Keywords: | ISP1581 DMA(direct memory access) |
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