| C8051F020与SPI串行Flash存储器的接口 |
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| 引用本文： | 程水英,武传华. C8051F020与SPI串行Flash存储器的接口[J]. 电子工程师, 2004, 30(7): 61-64 |
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| 作者姓名： | 程水英 武传华 |
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| 作者单位： | 解放军电子工程学院,安徽省,合肥市,230037 |
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| 摘 要： | 介绍了C8051F020单片机SPI模块的内部结构和相关配置寄存器的定义和使用,以及SPI串行Flash存储器AT45DB081B的外部引脚、存储空间的划分和相应的软件操作指令;着重阐述C8051F020与A4T5DB081B之间的接口技术,包括硬件连线方法、硬件连线及配置中需要注意的问题、软件驱动和测试程序的编写方法及流程.
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| 关 键 词： | C8051 F020 AT45DB081B SPI Flash存储器 接口技术 |
| 修稿时间： | 2004-04-27 |
The Interface Technology Between C8051F020 and Serial Flash Memory with SPI Interface Bus |
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| Cheng Shuiying,Wu Chuanhua. The Interface Technology Between C8051F020 and Serial Flash Memory with SPI Interface Bus[J]. Electronic Engineer, 2004, 30(7): 61-64 |
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| Authors: | Cheng Shuiying Wu Chuanhua |
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| Abstract: | In this paper, it is introduced first the SPI module in Cygnal's microcontroller C8051F020, including its block diagram, definition and operation of configuration registers associated. Then the external pinouts, division of memory space and corresponding software commands of Atmel's SPI flash memory AT45DB081B are described in detail. The emphasis is put on the interface technology between C8051F020 and AT45DB081B, hardware interconnection scheme and key points of attention. The software driver and its test routine are all dealt with thoroughly in this paper. |
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| Keywords: | C8051F020 AT45DB081B SPI flash memory interface technology |
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