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Description: nor flash(SPANSION的S29GL-A)的数据手册英文文档。对nor flash的读写很有帮助。-nor flash (SPANSION the S29GL-A) of the data sheet in English documents. Helpful to read and write on the nor flash.
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Size: 1405952 |
Author: 陈洁 |
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Description: Spansion公司提供的标准的flash芯片驱动的源代码.rar-Spansion offers the standard flash chip driver' s source code. Rar
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Size: 1168384 |
Author: fuzhicheng |
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Description: FLASH 测试
VMD642 开发板上的 flash 芯片为 Spansion 本例程在 VMD642_flash 目录中。
FLASH 的测试主要包括 FLASH 的擦除和读/写操作,以及其在存储空间中的映射是否
正确。
首先配置 EMIF,使得 FLASH的 8 个 512K空间映射到 DM642的存储空间中。
擦除 FLASH 的 8 个页面。
VMD642_rset(VMD642_FLASHPAGE, page) 设置当前页面。
在 VMD642 开发板中 4M 的 flash 空间被分为 8个 512k 页面,每个 512k的页面由 8 个
64k 的 sector组成。但注意在 Spansion 的这个 FLASH芯片中,
它的4M的地址空间是这么安排的: 总共72个sectors, 其中sector 0-7 为 8k, .sector 8-63
为 64k。
所以,在 VMD642-C 中的第一个页面的第一个 sector又分为8 个8k的 sub sectors。
擦除完后,向 FLASH中写入以每页的页数开始的顺序数据。
按同样顺序依次读出 FLASH 中的数据,比较读/写是否正确。 -FLASH test VMD642 development board flash chips for Spansion This routine VMD642_flash directory. The tests include FLASH FLASH erase and read/write operations, and the storage space in which the mapping is correct. First configure the EMIF, making the FLASH 8 512K space is mapped to the DM642 memory space. Erase the FLASH 8 pages. VMD642_rset (VMD642_FLASHPAGE, page) setting the current page. In VMD642 development board 4M of flash space is divided into eight 512k pages, each page 512k 64k by the eight components of the sector. But note this in Spansion FLASH chip, it' s 4M address space is so arranged: total 72 sectors, including sector 0-7 of 8k,. Sector 8-63 of 64k. Therefore, in VMD642-C in the first page of the first sector is divided into 8 8k the sub sectors. After erase, write to the FLASH pages per order starting data. By the same order of the data read out FLASH compare read/write is correct.
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Size: 79872 |
Author: ye |
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