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理论上可行,但是没有客户这么做过,大容量一般选EMMC较多,如果是为了满足容量需求,可以用EMMC
一定要连多片NAND,驱动这块需要自己搞了,BOOT只能从CS0启动。LINUX/UBOOT下都需要改NAND驱动。
Docs » 3. Foundational Components » 3.3. Kernel » 3.3.4. Kernel Drivers » 3.3.4.24. NAND中提到以下条件要满足
GPMC NAND driver supports:
NAND devices having:
bus-width = x8 | x16
page-size = 2048 | 4096
block-size = 128k | 256k
这样的器件是否有推荐?
另外TRM中33.3.7.5 SPI/QSPI Flash Devices中提到的需要满足;• 24-bit addressing, up to 128 Mbit (16 MiB), no banking怎么理解?
麻烦您做一下解答,谢谢
pdf1.alldatasheet.com/.../S25FL256S.html
这是对SPI FLASH规格的要求,可以参考一下上面这个链接的SPEC
TRM中33.3.7.5 SPI/QSPI Flash Devices中提到的需要满足;• 24-bit addressing, up to 128 Mbit (16 MiB), no banking怎么理解?这里不是对spiflash16MB的限制吗?您这边推荐的是32MB的spiflash, 这个又怎么理解?谢谢